hydrogen has been researched along with Sensitivity and Specificity in 256 studies
Hydrogen: The first chemical element in the periodic table with atomic symbol H, and atomic number 1. Protium (atomic weight 1) is by far the most common hydrogen isotope. Hydrogen also exists as the stable isotope DEUTERIUM (atomic weight 2) and the radioactive isotope TRITIUM (atomic weight 3). Hydrogen forms into a diatomic molecule at room temperature and appears as a highly flammable colorless and odorless gas.
dihydrogen : An elemental molecule consisting of two hydrogens joined by a single bond.
Sensitivity and Specificity: Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)
| Excerpt | Relevance | Reference |
|---|---|---|
| "Forty-five adult male Sprague Dawley rats (body weight 220-250 g) were randomly divided into three groups: (1) Sham operation group (SH), (2) Ischemia-reperfusion injury group (IR), and (3) Ischemia-reperfusion injury with preconditioning hydrogen group (PRH)." | 7.91 | Preconditioning with one-time hydrogen gas does not attenuate skin flap ischemia-reperfusion injury in rat models. ( Dong, X; Hao, Y; Liu, H; Wang, Y, 2019) |
| " Lactose hydrogen breath test is currently the gold standard in diagnosing lactose intolerance." | 7.74 | Correlation between symptoms developed after the oral ingestion of 50 g lactose and results of hydrogen breath testing for lactose intolerance. ( Beyerlein, L; Delco, F; Fried, M; Pohl, D; Stutz, B; Tutuian, R, 2008) |
| "A modified magnesium hydrogen breath test, using end expiratory breath sampling, is described to investigate achlorhydria." | 7.69 | Magnesium hydrogen breath test using end expiratory sampling to assess achlorhydria in pernicious anaemia patients. ( Boix, J; Domenech, E; Fernández-Bañares, F; Gassull, MA; Humbert, P; Juncá, J; López de Soria, P; Planas, R; Quer, JC, 1994) |
| "To demonstrate the use of a one-dimensional proton (1H) nuclear magnetic resonance (NMR) imaging technique to noninvasively monitor the progression of adjuvant arthritis and its response to indomethacin treatment in Lewis rat leg joints." | 7.69 | A quantitative one-dimensional magnetic resonance imaging technique in adjuvant arthritis: the assessment of disease progression and indomethacin efficacy. ( Borah, B; Boyce, JT; Francis, MD; Hovancik, K; Szeverenyi, NM, 1995) |
| "Lactose intolerance is a recognized complication of some episodes of diarrhoea." | 5.07 | Lactose feeding during persistent diarrhoea. ( Brown, KH; Penny, ME, 1992) |
| "Hydrogen-rich water has a significant protective effect on OGD/R-causing HT22 cell injury, and the mechanism may be related to the inhibition of autophagy." | 4.40 | Effect of 12-week of aerobic exercise on hormones and lipid profile status in adolescent girls with polycystic ovary syndrome: A study during COVID-19. ( , 2023) |
| "Forty-five adult male Sprague Dawley rats (body weight 220-250 g) were randomly divided into three groups: (1) Sham operation group (SH), (2) Ischemia-reperfusion injury group (IR), and (3) Ischemia-reperfusion injury with preconditioning hydrogen group (PRH)." | 3.91 | Preconditioning with one-time hydrogen gas does not attenuate skin flap ischemia-reperfusion injury in rat models. ( Dong, X; Hao, Y; Liu, H; Wang, Y, 2019) |
| "Lactose malabsorption (LM), diagnosed currently using lactose hydrogen breath and tolerance tests (LHBT, LTT) with a high, nonphysiological dose (50-g), may mimic irritable bowel syndrome (IBS)." | 3.79 | Lactose malabsorption diagnosed by 50-g dose is inferior to assess clinical intolerance and to predict response to milk withdrawal than 25-g dose in an endemic area. ( Ghoshal, UC; Kumar, S; Misra, A; Mittal, B, 2013) |
| " Lactose hydrogen breath test is currently the gold standard in diagnosing lactose intolerance." | 3.74 | Correlation between symptoms developed after the oral ingestion of 50 g lactose and results of hydrogen breath testing for lactose intolerance. ( Beyerlein, L; Delco, F; Fried, M; Pohl, D; Stutz, B; Tutuian, R, 2008) |
| "The breath methane test for lactose malabsorption has a lower sensitivity and specificity than the breath hydrogen test and therefore does not replace the lactose breath hydrogen test." | 3.70 | Ineffectiveness of breath methane excretion as a diagnostic test for lactose malabsorption. ( Bolin, TD; Kyaw-Hla, S; Thein-Myint, T, 1999) |
| "A modified magnesium hydrogen breath test, using end expiratory breath sampling, is described to investigate achlorhydria." | 3.69 | Magnesium hydrogen breath test using end expiratory sampling to assess achlorhydria in pernicious anaemia patients. ( Boix, J; Domenech, E; Fernández-Bañares, F; Gassull, MA; Humbert, P; Juncá, J; López de Soria, P; Planas, R; Quer, JC, 1994) |
| "To demonstrate the use of a one-dimensional proton (1H) nuclear magnetic resonance (NMR) imaging technique to noninvasively monitor the progression of adjuvant arthritis and its response to indomethacin treatment in Lewis rat leg joints." | 3.69 | A quantitative one-dimensional magnetic resonance imaging technique in adjuvant arthritis: the assessment of disease progression and indomethacin efficacy. ( Borah, B; Boyce, JT; Francis, MD; Hovancik, K; Szeverenyi, NM, 1995) |
| "To i) document the sensitivity and specificity of a combined scintigraphic/lactulose breath hydrogen test for small intestinal bacterial overgrowth and ii) investigate the validity of currently accepted definitions of an abnormal lactulose breath hydrogen test based on "double peaks" in breath hydrogen concentrations." | 3.69 | The lactulose breath hydrogen test and small intestinal bacterial overgrowth. ( Bolin, TD; Duncombe, VM; McIver, CJ; Riordan, SM; Thomas, MC; Walker, BM, 1996) |
| "To evaluate cerebral biochemical abnormalities in patients with frontotemporal dementia and Alzheimer disease and to determine whether proton (hydrogen-1) magnetic resonance (MR) spectroscopy can help differentiate among these two patient groups and healthy (control) subjects." | 3.69 | Frontotemporal dementia and early Alzheimer disease: differentiation with frontal lobe H-1 MR spectroscopy. ( Chang, L; Ernst, T; Mehringer, CM; Melchor, R, 1997) |
| " In both cases no dose-response relation was observed." | 2.69 | Variations in colonic H2 and CO2 production as a cause of inadequate diagnosis of carbohydrate maldigestion in breath tests. ( de Bruijn, S; Koetse, HA; Pal, J; Pasterkamp, S; Stellaard, F; Vonk, RJ, 2000) |
| "The lactose HBT result was abnormal in 78." | 1.36 | Frequency of lactose malabsorption among healthy southern and northern Indian populations by genetic analysis and lactose hydrogen breath and tolerance tests. ( Babu, J; Babu, P; Ghoshal, UC; Kumar, S; Prasad, JH, 2010) |
| "Glycerol and sucrose cause a significant increase in the rate of hydride transfer, but lead to a reduction in the magnitude of the kinetic isotope effect as well as an extension of the temperature range over which "passive" protein dynamics (rather than "active" gating motions) dominate the reaction." | 1.35 | Solvent effects on environmentally coupled hydrogen tunnelling during catalysis by dihydrofolate reductase from Thermotoga maritima. ( Allemann, RK; Evans, RM; Loveridge, EJ, 2008) |
| "Hydrogenase was adsorbed to pyrolytic graphite edge and carbon felt electrodes." | 1.35 | [FeFe]-hydrogenase-catalyzed H2 production in a photoelectrochemical biofuel cell. ( Gervaldo, M; Ghirardi, M; Gust, D; Hambourger, M; King, PW; Moore, AL; Moore, TA; Svedruzic, D, 2008) |
| "Hydrogen production was accomplished under visible-light irradiation by using a system consisting of a biomolecule (chlorophyll a), methylviologen, ethylenediaminetetraacetic acid disodium salt and Pt-loaded poly(l-glutamate) (Poly(Glu)), in aqueous decylammonium chloride (DeAC) solution." | 1.34 | Visible-light induced hydrogen production using a polypeptide-chlorophyll complex with alpha-helix conformation. ( Ahmmad, B; Ikeda, M; Kusumoto, Y; Ngweniform, P; Somekawa, S; Teshima, T, 2007) |
| "Benzene hydrogenation was investigated in the presence of a surface monolayer consisting of Pt nanoparticles of different shapes (cubic and cuboctahedral) and tetradecyltrimethylammonium bromide (TTAB)." | 1.34 | Platinum nanoparticle shape effects on benzene hydrogenation selectivity. ( Bratlie, KM; Komvopoulos, K; Lee, H; Somorjai, GA; Yang, P, 2007) |
| "Platinum deposition was observed in the polymer electrolyte membrane near a cathode catalyst layer." | 1.33 | Platinum dissolution and deposition in the polymer electrolyte membrane of a PEM fuel cell as studied by potential cycling. ( Akita, T; Ioroi, T; Siroma, Z; Taniguchi, A; Yasuda, K, 2006) |
| "Hydrogen was a stronger reagent than CO toward NO reduction and relatively enhanced the N(a) associative process." | 1.33 | Surface-nitrogen removal in a steady-state NO + H2 reaction on Pd(110). ( Ma, Y; Matsushima, T, 2005) |
| "The hydrogen molecules were localized in the small dodecahedral cavities at 20 K, with nuclear density from the hydrogen approximately spherically distributed and centered in the small cavity." | 1.33 | Molecular hydrogen occupancy in binary THF-H2 clathrate hydrates by high resolution neutron diffraction. ( Hester, KC; Huq, A; Koh, CA; Schultz, AJ; Sloan, ED; Strobel, TA, 2006) |
| "Hydrogen was the most severe inhibitor when allowed to accumulate in the culture." | 1.32 | Substrate and product inhibition of hydrogen production by the extreme thermophile, Caldicellulosiruptor saccharolyticus. ( Claassen, PA; Stams, AJ; van Niel, EW, 2003) |
| "Myo-inositol is a strongly coupled system and resonates at four chemical shift positions." | 1.32 | A comparative study of myo-inositol quantification using LCmodel at 1.5 T and 3.0 T with 3 D 1H proton spectroscopic imaging of the human brain. ( Hurd, R; Nelson, S; Sailasuta, N; Srinivasan, R; Vigneron, D, 2004) |
| "The hydrogen atoms were replaced in part, by deuterium soaking the crystals for more than 10 years in D(2)O." | 1.31 | Hydrogen and deuterium in myoglobin as seen by a neutron structure determination at 1.5 A resolution. ( Engler, N; Niimura, N; Ostermann, A; Parak, FG; Tanaka, I, 2002) |
| "Thus, for diagnosing hypolactasia, the Micro H2 appeared as reliable for measuring breath hydrogen concentrations as Quintron MicroLyzer commonly used in oral lactose tolerance tests." | 1.30 | Comparison of a portable breath hydrogen analyser (Micro H2) with a Quintron MicroLyzer in measuring lactose maldigestion, and the evaluation of a Micro H2 for diagnosing hypolactasia. ( Korpela, R; Peuhkuri, K; Poussa, T, 1998) |
| " A key advantage of the method is that it maintains the specific absorption rate (SAR) within FDA limits of 5 W/kg by reducing power deposition during decoupling." | 1.29 | In vivo selective measurement of (1-13C)-glucose metabolism in tumors by heteronuclear cross polarization. ( Artemov, D; Bhujwalla, ZM; Glickson, JD, 1995) |
| "Histidine 143 has been replaced by either alanine or asparagine." | 1.29 | NMR studies of 1H resonances in the 10-18-ppm range for aspartate aminotransferase from Escherichia coli. ( Hayashi, H; Hirotsu, K; Kagamiyama, H; Kuramitsu, S; Metzler, CM; Metzler, DE; Miyahara, I; Mollova, ET; Scott, RD; Yano, T, 1994) |
| "Hydrogen excretion was normalized for the quality of the expired air by dividing by the carbon dioxide pressure of the gas sample." | 1.28 | Breath hydrogen excretion as a screening test for the early diagnosis of necrotizing enterocolitis. ( Brown, DR; Cheu, HW; Rowe, MI, 1989) |
| Timeframe | Studies, this research(%) | All Research% |
|---|---|---|
| pre-1990 | 2 (0.78) | 18.7374 |
| 1990's | 43 (16.80) | 18.2507 |
| 2000's | 182 (71.09) | 29.6817 |
| 2010's | 28 (10.94) | 24.3611 |
| 2020's | 1 (0.39) | 2.80 |
| Authors | Studies |
|---|---|
| Hamilton, P | 1 |
| Littlejohn, D | 1 |
| Nordon, A | 1 |
| Sefcik, J | 1 |
| Slavin, P | 1 |
| Jung, H | 1 |
| Wilson, DB | 1 |
| Walker, LP | 1 |
| Yong, CS | 1 |
| Kim, YI | 1 |
| Park, SM | 1 |
| Kwon, R | 1 |
| Han, HH | 1 |
| Park, JG | 1 |
| Yang, CY | 1 |
| Kim, JA | 1 |
| Yoo, BK | 1 |
| Rhee, JD | 1 |
| Choi, HG | 1 |
| Gao, HH | 1 |
| Chen, MX | 1 |
| Hu, XQ | 1 |
| Chai, SS | 1 |
| Qin, ML | 1 |
| Cao, ZY | 1 |
| Unutkan, T | 1 |
| Koyuncu, İ | 1 |
| Diker, C | 1 |
| Fırat, M | 1 |
| Büyükpınar, Ç | 1 |
| Bakırdere, S | 1 |
| Goldstein, GP | 1 |
| Sylvester, KG | 1 |
| Hao, Y | 1 |
| Dong, X | 1 |
| Liu, H | 3 |
| Wang, Y | 1 |
| Ghoshal, UC | 3 |
| Kumar, S | 2 |
| Misra, A | 2 |
| Mittal, B | 1 |
| Srivastava, D | 1 |
| Ghoshal, U | 1 |
| Chow, KK | 1 |
| Short, M | 1 |
| Lam, S | 1 |
| McWilliams, A | 1 |
| Zeng, H | 1 |
| Hanf, S | 1 |
| Bögözi, T | 1 |
| Keiner, R | 1 |
| Frosch, T | 1 |
| Popp, J | 1 |
| Katoch, A | 1 |
| Choi, SW | 1 |
| Kim, HW | 1 |
| Kim, SS | 1 |
| Paluch, P | 1 |
| Trébosc, J | 2 |
| Nishiyama, Y | 1 |
| Potrzebowski, MJ | 1 |
| Malon, M | 1 |
| Amoureux, JP | 2 |
| Ooms, KJ | 1 |
| Vega, AJ | 1 |
| Polenova, T | 1 |
| Cannella, M | 1 |
| Marcolongo, M | 1 |
| Oda, K | 1 |
| Nakayama, T | 1 |
| Umetani, K | 1 |
| Kajihara, M | 1 |
| Yamauchi, T | 1 |
| Yao, CK | 1 |
| Tuck, CJ | 1 |
| Körner, R | 1 |
| Apostolakis, J | 1 |
| Ahn, DS | 1 |
| Lee, J | 1 |
| Choi, JM | 1 |
| Lee, KS | 1 |
| Baek, SJ | 1 |
| Lee, K | 1 |
| Baeck, KK | 1 |
| Kim, SK | 1 |
| Pesek, JJ | 2 |
| Matyska, MT | 2 |
| Venkat, JP | 1 |
| Huang, Y | 1 |
| Wen, Q | 1 |
| Jiang, JH | 1 |
| Shen, GL | 1 |
| Yu, RQ | 1 |
| Dóczi, R | 1 |
| Csikai, J | 1 |
| Casellas, F | 3 |
| Varela, E | 1 |
| Aparici, A | 1 |
| Casaus, M | 1 |
| Rodríguez, P | 1 |
| Seliger, J | 1 |
| Zagar, V | 1 |
| Gallagher, NB | 1 |
| Gassman, PL | 1 |
| Blake, TA | 1 |
| Caucheteur, C | 1 |
| Debliquy, M | 1 |
| Lahem, D | 1 |
| Megret, P | 1 |
| Loveridge, EJ | 1 |
| Evans, RM | 1 |
| Allemann, RK | 1 |
| Mao, K | 1 |
| Wiench, JW | 1 |
| Lin, VS | 1 |
| Pruski, M | 1 |
| Mafra, L | 1 |
| Gomes, JR | 1 |
| Rocha, J | 1 |
| Moscoso-Pérez, C | 1 |
| Moreda-Piñeiro, J | 1 |
| López-Mahía, P | 1 |
| Muniategui-Lorenzo, S | 1 |
| Fernández-Fernández, E | 1 |
| Prada-Rodríguez, D | 1 |
| Manjunatha Reddy, GN | 1 |
| Guru Row, TN | 1 |
| Suryaprakash, N | 1 |
| Schneider, AR | 1 |
| Klueber, S | 1 |
| Posselt, HG | 1 |
| Funk, B | 1 |
| Murzynski, L | 1 |
| Caspary, WF | 2 |
| Stein, J | 1 |
| Roussakis, E | 1 |
| Pergantis, SA | 1 |
| Katerinopoulos, HE | 1 |
| Wang, L | 2 |
| Caylor, KK | 1 |
| Dragoni, D | 1 |
| Bergeron, A | 1 |
| Furtado, M | 1 |
| Garofolo, F | 1 |
| Adams, RW | 2 |
| Aguilar, JA | 2 |
| Atkinson, KD | 1 |
| Cowley, MJ | 1 |
| Elliott, PI | 1 |
| Duckett, SB | 2 |
| Green, GG | 2 |
| Khazal, IG | 1 |
| López-Serrano, J | 1 |
| Williamson, DC | 1 |
| Tveito, K | 2 |
| Hetta, AK | 2 |
| Askedal, M | 2 |
| Brunborg, C | 2 |
| Sandvik, L | 2 |
| Løberg, EM | 2 |
| Skar, V | 2 |
| Yang, F | 1 |
| Taggart, DK | 1 |
| Penner, RM | 1 |
| Chen, PC | 1 |
| Ishikawa, FN | 1 |
| Chang, HK | 1 |
| Ryu, K | 1 |
| Zhou, C | 1 |
| Jeon, KJ | 1 |
| Lee, JM | 1 |
| Lee, E | 1 |
| Lee, W | 1 |
| Nunes, PM | 1 |
| Jones, JG | 2 |
| Berthold, HK | 1 |
| Schober, P | 1 |
| Scheurlen, C | 1 |
| Marklein, G | 1 |
| Horré, R | 1 |
| Gouni-Berthold, I | 1 |
| Sauerbruch, T | 1 |
| Lin, K | 1 |
| Lu, Y | 1 |
| Chen, J | 1 |
| Zheng, R | 1 |
| Wang, P | 1 |
| Ming, H | 1 |
| Gledhill, JM | 1 |
| Walters, BT | 1 |
| Wand, AJ | 1 |
| Alexandrino, AP | 1 |
| Rodrigues, MA | 1 |
| Matsuo, T | 1 |
| Schuquel, IT | 1 |
| Costa, WF | 1 |
| Santilli, JC | 1 |
| Touahir, L | 1 |
| Moraillon, A | 1 |
| Allongue, P | 1 |
| Chazalviel, JN | 1 |
| Henry de Villeneuve, C | 1 |
| Ozanam, F | 1 |
| Solomon, I | 1 |
| Gouget-Laemmel, AC | 1 |
| Babu, J | 1 |
| Babu, P | 1 |
| Prasad, JH | 1 |
| Friesen, N | 1 |
| Hansen, RD | 1 |
| Abraham, SF | 1 |
| Kellow, JE | 1 |
| Yakovlev, S | 1 |
| Misra, M | 1 |
| Shi, S | 1 |
| Libera, M | 1 |
| Lee, JY | 1 |
| Kim, SH | 1 |
| Moon, DW | 1 |
| Lee, ES | 1 |
| Larsson, EM | 1 |
| Edvardsson, ME | 1 |
| Langhammer, C | 1 |
| Zorić, I | 1 |
| Kasemo, B | 1 |
| Xiang, XM | 1 |
| Liu, KZ | 1 |
| Man, A | 1 |
| Ghiabi, E | 1 |
| Cholakis, A | 1 |
| Scott, DA | 1 |
| Pham, V | 1 |
| Holtzapple, M | 1 |
| El-Halwagi, M | 1 |
| Reyngoudt, H | 1 |
| De Deene, Y | 1 |
| Descamps, B | 1 |
| Paemeleire, K | 1 |
| Achten, E | 1 |
| Heo, KS | 1 |
| Hyun, MH | 1 |
| Cho, YJ | 1 |
| Ryoo, JJ | 1 |
| Kandiah, R | 1 |
| Zeng, XQ | 1 |
| Latimer, ML | 1 |
| Xiao, ZL | 1 |
| Panuganti, S | 1 |
| Welp, U | 1 |
| Kwok, WK | 1 |
| Xu, T | 1 |
| Jomrit, J | 1 |
| Summpunn, P | 1 |
| Meevootisom, V | 1 |
| Wiyakrutta, S | 1 |
| Kuipers, W | 1 |
| Müller, J | 1 |
| Durrant, JD | 1 |
| McCammon, JA | 1 |
| Zou, J | 1 |
| Zdyrko, B | 1 |
| Luzinov, I | 1 |
| Raston, CL | 1 |
| Iyer, KS | 1 |
| Piper, T | 1 |
| Thomas, A | 1 |
| Thevis, M | 1 |
| Saugy, M | 1 |
| Brix, KV | 1 |
| Wood, CM | 1 |
| Grosell, M | 1 |
| Ryba, SA | 1 |
| Burgess, RM | 1 |
| Levina, NN | 1 |
| Dunina-Barkovskaya, AY | 1 |
| Shabala, S | 1 |
| Lew, RR | 1 |
| Qian, DJ | 1 |
| Nakamura, C | 1 |
| Wenk, SO | 1 |
| Ishikawa, H | 1 |
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| Yong, P | 1 |
| Rowson, NA | 1 |
| Farr, JP | 1 |
| Harris, IR | 1 |
| Macaskie, LE | 1 |
| Tsygankov, AA | 1 |
| Fedorov, AS | 1 |
| Kosourov, SN | 1 |
| Rao, KK | 1 |
| van Niel, EW | 1 |
| Claassen, PA | 1 |
| Stams, AJ | 1 |
| Urita, Y | 1 |
| Hike, K | 1 |
| Torii, N | 1 |
| Kikuchi, Y | 1 |
| Kanda, E | 1 |
| Sasajima, M | 1 |
| Ariki, H | 1 |
| Miki, K | 1 |
| Chatake, T | 1 |
| Ostermann, A | 2 |
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| Parak, FG | 2 |
| Niimura, N | 2 |
| Hoofnagle, AN | 1 |
| Resing, KA | 1 |
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| Kuruoğlu, D | 1 |
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| Lee, JW | 1 |
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| Nazabal, A | 1 |
| Laguerre, M | 1 |
| Schmitter, JM | 1 |
| Vaillier, J | 1 |
| Chaignepain, S | 1 |
| Velours, J | 1 |
| Alba, MD | 1 |
| Castro, MA | 1 |
| Clarke, SM | 1 |
| Perdigón, AC | 1 |
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| Ylinen, EE | 1 |
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| Malagelada, JR | 2 |
| Zhang, T | 2 |
| Fang, HH | 2 |
| Verdier, L | 1 |
| Sakhaii, P | 1 |
| Zweckstetter, M | 1 |
| Griesinger, C | 2 |
| Lipsitz, RS | 1 |
| Tjandra, N | 2 |
| VENNESLAND, B | 1 |
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| Bai, F | 1 |
| Li, JF | 2 |
| Viehland, D | 1 |
| Cravello, L | 1 |
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| Keeler, J | 1 |
| Ikeda, M | 2 |
| Suzuki, S | 1 |
| Kishio, M | 1 |
| Hirono, M | 1 |
| Sugiyama, T | 1 |
| Matsuura, J | 1 |
| Suzuki, T | 1 |
| Sota, T | 1 |
| Allen, CN | 1 |
| Konishi, S | 1 |
| Yoshioka, T | 1 |
| Matsuki, Y | 1 |
| Akutsu, H | 1 |
| Fujiwara, T | 1 |
| Simon, S | 1 |
| Tran, H | 1 |
| Pannier, F | 1 |
| Potin-Gautier, M | 1 |
| Xu, Q | 1 |
| Mori, M | 1 |
| Tanaka, K | 1 |
| Ikedo, M | 1 |
| Hu, W | 1 |
| Roberge, MT | 1 |
| Finley, JW | 1 |
| Lukaski, HC | 1 |
| Borgerding, AJ | 1 |
| Ding, K | 1 |
| Gronenborn, AM | 1 |
| Kövér, KE | 1 |
| Batta, G | 1 |
| Kowalewski, J | 1 |
| Ghalebani, L | 1 |
| Kruk, D | 1 |
| Lacher, NA | 1 |
| Lunte, SM | 1 |
| Martin, RS | 1 |
| Srinivasan, R | 1 |
| Vigneron, D | 1 |
| Sailasuta, N | 1 |
| Hurd, R | 1 |
| Nelson, S | 1 |
| Xu, M | 1 |
| Chen, L | 1 |
| Song, J | 1 |
| Motta, A | 1 |
| Romano, I | 1 |
| Gambacorta, A | 1 |
| Jin, H | 1 |
| Kinser, CR | 1 |
| Bertin, PA | 1 |
| Kramer, DE | 1 |
| Libera, JA | 1 |
| Hersam, MC | 1 |
| Nguyen, ST | 1 |
| Bedzyk, MJ | 1 |
| Slater, C | 1 |
| Preston, T | 1 |
| Palecek, E | 1 |
| Masarík, M | 1 |
| Kizek, R | 1 |
| Kuhlmeier, D | 1 |
| Hassmann, J | 1 |
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| López-Sánchez, JF | 1 |
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| Varghese, OK | 1 |
| Mor, GK | 1 |
| Grimes, CA | 1 |
| Paulose, M | 1 |
| Mukherjee, N | 1 |
| Busenlehner, LS | 1 |
| Armstrong, RN | 1 |
| Barmenkov, YO | 1 |
| Ortigosa-Blanch, A | 1 |
| Diez, A | 1 |
| Cruz, JL | 1 |
| Andrés, MV | 1 |
| Reader, J | 1 |
| Di Stefano, M | 1 |
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| Miceli, E | 1 |
| Strocchi, A | 4 |
| Corazza, GR | 2 |
| Tolia, V | 1 |
| Wuerth, A | 1 |
| Thomas, R | 1 |
| Andreev, NS | 1 |
| Emeline, AV | 1 |
| Polikhova, SV | 1 |
| Ryabchuk, VK | 1 |
| Serpone, N | 1 |
| Hanoulle, X | 1 |
| Wieruszeski, JM | 1 |
| Rousselot-Pailley, P | 1 |
| Landrieu, I | 1 |
| Baulard, AR | 1 |
| Lippens, G | 1 |
| Zarghi, A | 1 |
| Shafaati, A | 1 |
| Foroutan, SM | 1 |
| Khoddam, A | 1 |
| Lundqvist, M | 1 |
| Sethson, I | 1 |
| Jonsson, BH | 1 |
| Hänsch, TW | 1 |
| Alnis, J | 1 |
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| Trial | Phase | Enrollment | Study Type | Start Date | Status | ||
|---|---|---|---|---|---|---|---|
| Evaluation of GIMate Handheld Hydrogen Breath Monitor for Diagnosis of Lactose Malabsorption[NCT04754724] | 31 participants (Actual) | Interventional | 2021-04-01 | Completed | |||
| [information is prepared from clinicaltrials.gov, extracted Sep-2024] | |||||||
11 reviews available for hydrogen and Sensitivity and Specificity
| Article | Year |
|---|---|
Effect of 12-week of aerobic exercise on hormones and lipid profile status in adolescent girls with polycystic ovary syndrome: A study during COVID-19.
Topics: Actin Cytoskeleton; Actins; Adaptor Proteins, Signal Transducing; Adenocarcinoma; Adenosine Triphosp | 2023 |
Biomarker Discovery and Utility in Necrotizing Enterocolitis.
Topics: Alpha-Globulins; Biomarkers; Blood Cell Count; Breath Tests; C-Reactive Protein; Claudins; Complemen | 2019 |
The clinical value of breath hydrogen testing.
Topics: Biomarkers; Breath Tests; Dietary Carbohydrates; Fermentation; Gastrointestinal Microbiome; Humans; | 2017 |
Protein analysis by hydrogen exchange mass spectrometry.
Topics: Amides; Deuterium; Gas Chromatography-Mass Spectrometry; Hydrogen; Hydrogen Bonding; Macromolecular | 2003 |
Insights into enzyme structure and dynamics elucidated by amide H/D exchange mass spectrometry.
Topics: Amides; Binding Sites; Catalysis; Catalytic Domain; Crystallography, X-Ray; Deuterium; Enzymes; Fore | 2005 |
Precision spectroscopy of hydrogen and femtosecond laser frequency combs.
Topics: Hydrogen; International System of Units; Internationality; Lasers; Physics; Quantum Theory; Referenc | 2005 |
Adsorption properties of HKUST-1 toward hydrogen and other small molecules monitored by IR.
Topics: Adsorption; Carbon Dioxide; Copper; Hydrogen; Nitric Oxide; Nitrogen; Organometallic Compounds; Sens | 2007 |
Review of the establishment of nitro group charge method and its applications.
Topics: Azides; Carbon; Chemistry Techniques, Analytical; Hydrogen; Nitro Compounds; Sensitivity and Specifi | 2009 |
Magnetic resonance spectroscopy applied to clinical oncology.
Topics: Clinical Trials as Topic; Fluorine; Humans; Hydrogen; Magnetic Resonance Spectroscopy; Neoplasms; Ph | 1994 |
[Breath tests: noninvasive functional-related diagnostic tests in gastroenterology].
Topics: Breath Tests; Carbon Dioxide; Carbon Radioisotopes; Gastrointestinal Diseases; Humans; Hydrogen; Sen | 1998 |
Of mermaids and mountains. Three decades of prompt activation in vivo.
Topics: Body Composition; Calcium; Calibration; Chlorides; Cyclotrons; Humans; Hydrogen; Neutron Activation | 2000 |
9 trials available for hydrogen and Sensitivity and Specificity
| Article | Year |
|---|---|
Trials of novel 13C-urea-containing capsule for more economic and sensitive diagnosis of Helicobacter pylori infection in human subjects.
Topics: Adult; Ammonia; Breath Tests; Capsules; Carbon Dioxide; Carbon Isotopes; Cellulose; Excipients; Heli | 2006 |
Effect of 12-week of aerobic exercise on hormones and lipid profile status in adolescent girls with polycystic ovary syndrome: A study during COVID-19.
Topics: Actin Cytoskeleton; Actins; Adaptor Proteins, Signal Transducing; Adenocarcinoma; Adenosine Triphosp | 2023 |
Breath tests in the diagnosis of small intestinal bacterial overgrowth in patients with irritable bowel syndrome in comparison with quantitative upper gut aspirate culture.
Topics: Adolescent; Adult; Aged; Blind Loop Syndrome; Breath Tests; Diarrhea; Female; Glucose; Humans; Hydro | 2014 |
Use of the lactose-[13C]ureide breath test for diagnosis of small bowel bacterial overgrowth: comparison to the glucose hydrogen breath test.
Topics: Adolescent; Adult; Aged; Bacterial Infections; Breath Tests; Female; Glucose; Humans; Hydrogen; Inte | 2009 |
Fructose-sorbitol ingestion provokes gastrointestinal symptoms in patients with eating disorders.
Topics: Abdominal Pain; Administration, Oral; Adolescent; Adult; Australia; Breath Tests; Feeding and Eating | 2009 |
Hydrogen breath test in the diagnosis of lactose malabsorption: accuracy of new versus conventional criteria.
Topics: Adult; Breath Tests; Dietary Carbohydrates; Fasting; Female; Humans; Hydrogen; Lactose Intolerance; | 2004 |
Carbohydrate malabsorption: quantification by methane and hydrogen breath tests.
Topics: Adult; Breath Tests; Female; Humans; Hydrogen; Intestinal Absorption; Lactulose; Malabsorption Syndr | 1994 |
Variations in colonic H2 and CO2 production as a cause of inadequate diagnosis of carbohydrate maldigestion in breath tests.
Topics: Adult; Breath Tests; Carbohydrate Metabolism; Carbon Dioxide; Colon; Female; Humans; Hydrogen; Intes | 2000 |
Lactose feeding during persistent diarrhoea.
Topics: Breath Tests; Chronic Disease; Diarrhea, Infantile; Diet; Feces; Female; Humans; Hydrogen; Infant; I | 1992 |
237 other studies available for hydrogen and Sensitivity and Specificity
| Article | Year |
|---|---|
Validity of particle size analysis techniques for measurement of the attrition that occurs during vacuum agitated powder drying of needle-shaped particles.
Topics: Cellobiose; Cellulose; Chemistry Techniques, Analytical; Desiccation; Lasers; Microscopy; Nanopartic | 2012 |
Binding mechanisms for Thermobifida fusca Cel5A, Cel6B, and Cel48A cellulose-binding modules on bacterial microcrystalline cellulose.
Topics: Actinomycetales; Amino Acid Sequence; Bacterial Proteins; Cellulase; Cellulose; Cellulose 1,4-beta-C | 2002 |
Separation of selenium species and their sensitive determination in rice samples by ion-pairing reversed-phase liquid chromatography with inductively coupled plasma tandem mass spectrometry.
Topics: Acetates; Chromatography, High Pressure Liquid; Chromatography, Reverse-Phase; Hydrogen; Hydrogen-Io | 2018 |
Accurate and Sensitive Analytical Strategy for the Determination of Antimony: Hydrogen Assisted T-Shaped Slotted Quartz Tube-Atom Trap-Flame Atomic Absorption Spectrometry.
Topics: Antimony; Hydrogen; Limit of Detection; Quartz; Sensitivity and Specificity; Spectrophotometry, Atom | 2019 |
Preconditioning with one-time hydrogen gas does not attenuate skin flap ischemia-reperfusion injury in rat models.
Topics: Analysis of Variance; Animals; Biopsy, Needle; Disease Models, Animal; Epigastric Arteries; Graft Re | 2019 |
Lactose malabsorption diagnosed by 50-g dose is inferior to assess clinical intolerance and to predict response to milk withdrawal than 25-g dose in an endemic area.
Topics: Adult; Animals; Breath Tests; Dose-Response Relationship, Drug; Female; Follow-Up Studies; Genotype; | 2013 |
A Raman cell based on hollow core photonic crystal fiber for human breath analysis.
Topics: Air; Breath Tests; Carbon Dioxide; Equipment Design; Exhalation; Fiber Optic Technology; Gases; Huma | 2014 |
Fast and highly sensitive fiber-enhanced Raman spectroscopic monitoring of molecular H2 and CH4 for point-of-care diagnosis of malabsorption disorders in exhaled human breath.
Topics: Bacterial Infections; Breath Tests; Exhalation; Fiber Optic Technology; Humans; Hydrogen; Intestines | 2015 |
Highly sensitive and selective H2 sensing by ZnO nanofibers and the underlying sensing mechanism.
Topics: Equipment Design; Hydrogen; Microscopy, Electron, Scanning; Nanofibers; Semiconductors; Sensitivity | 2015 |
Theoretical study of CP-VC: a simple, robust and accurate MAS NMR method for analysis of dipolar C-H interactions under rotation speeds faster than ca. 60 kHz.
Topics: Algorithms; Carbon; Computer Simulation; Hydrogen; Magnetic Resonance Spectroscopy; Models, Chemical | 2015 |
Double and zero quantum filtered (2)H NMR analysis of D2O in intervertebral disc tissue.
Topics: Adolescent; Adult; Aged; Algorithms; Body Water; Deuterium Oxide; Humans; Hydrogen; Intervertebral D | 2015 |
GENERALISATION OF RADIATOR DESIGN TECHNIQUES FOR PERSONAL NEUTRON DOSEMETERS BY UNFOLDING METHOD.
Topics: Fluorescence; Humans; Hydrogen; Models, Statistical; Neutrons; Occupational Exposure; Polyethylene; | 2016 |
Automatic determination of reaction mappings and reaction center information. 1. The imaginary transition state energy approach.
Topics: Databases, Factual; Enzymes; Hydrogen; Models, Chemical; Sensitivity and Specificity; Thermodynamics | 2008 |
State-selective predissociation dynamics of methylamines: the vibronic and HD effects on the conical intersection dynamics.
Topics: Deuterium; Electrons; Hydrogen; Methylamines; Quantum Theory; Sensitivity and Specificity; Surface P | 2008 |
Evaluation of protein, peptide, and amino acid retention on C5 hydride-based stationary phases.
Topics: Amino Acids; Hydrocarbons; Hydrogen; Hydrophobic and Hydrophilic Interactions; Peptides; Proteins; S | 2008 |
A novel electrochemical immunosensor based on hydrogen evolution inhibition by enzymatic copper deposition on platinum nanoparticle-modified electrode.
Topics: Alkaline Phosphatase; Biosensing Techniques; Copper; Electrochemistry; Equipment Design; Equipment F | 2008 |
An improved method for bulk hydrogen analysis using epithermal neutrons.
Topics: Algorithms; Hydrogen; Neutron Diffraction; Reproducibility of Results; Sensitivity and Specificity | 2008 |
Development, validation, and applicability of a symptoms questionnaire for lactose malabsorption screening.
Topics: Abdominal Pain; Adult; Breath Tests; Diarrhea; Female; Flatulence; Humans; Hydrogen; Lactose Intoler | 2009 |
1H-17O nuclear quadrupole double resonance in phenylphosphinic acid and phenylphosphonic acid. 17O quadrupole coupling in P = O and P-O-H bonds.
Topics: Hydrogen; Hydrogen Bonding; Magnetic Resonance Spectroscopy; Molecular Structure; Organophosphorus C | 2008 |
Strategies for detecting organic liquids on soils using mid-infrared reflection spectroscopy.
Topics: Carbon; Environmental Monitoring; Hydrogen; Least-Squares Analysis; Organic Chemicals; Oxygen; Phosp | 2008 |
Hybrid fiber gratings coated with a catalytic sensitive layer for hydrogen sensing in air.
Topics: Air; Catalysis; Environmental Monitoring; Equipment Design; Equipment Failure Analysis; Hydrogen; Op | 2008 |
Solvent effects on environmentally coupled hydrogen tunnelling during catalysis by dihydrofolate reductase from Thermotoga maritima.
Topics: Biocatalysis; Circular Dichroism; Electric Conductivity; Glycerol; Hydrogen; Kinetics; Models, Molec | 2008 |
Indirectly detected through-bond chemical shift correlation NMR spectroscopy in solids under fast MAS: studies of organic-inorganic hybrid materials.
Topics: Algorithms; Carbon; Carbon Isotopes; Hydrogen; Hydrogen Bonding; Inorganic Chemicals; Magnetic Reson | 2009 |
1H-1H double-quantum CRAMPS NMR at very-fast MAS (nuR=35 kHz): a resolution enhancement method to probe 1H-1H proximities in solids.
Topics: Algorithms; Computer Simulation; Hydrogen; Hydrogen Bonding; Magnetic Resonance Spectroscopy; Models | 2009 |
Pressurized liquid extraction followed by high performance liquid chromatography coupled to hydride generation atomic fluorescence spectrometry for arsenic and selenium speciation in atmospheric particulate matter.
Topics: Arsenic; Chelating Agents; Chromatography, High Pressure Liquid; Hydrogen; Pressure; Reproducibility | 2008 |
Discerning the degenerate transitions of scalar coupled 1H NMR spectra: correlation and resolved techniques at higher quantum.
Topics: Benzamides; Electron Spin Resonance Spectroscopy; Fluorocarbons; Hydrogen; Magnetic Resonance Spectr | 2009 |
Application of the glucose hydrogen breath test for the detection of bacterial overgrowth in patients with cystic fibrosis--a reliable method?
Topics: Adolescent; Breath Tests; Case-Control Studies; Child; Child, Preschool; Cystic Fibrosis; Female; Ga | 2009 |
Coumarin-based ratiometric fluorescent indicators with high specificity for lead ions.
Topics: Alkenes; Amines; Catalysis; Coumarins; Fluorescent Dyes; Gold; Hydrogen; Ions; Lead; Molecular Struc | 2008 |
On the calibration of continuous, high-precision delta18O and delta2H measurements using an off-axis integrated cavity output spectrometer.
Topics: Calibration; Hydrogen; Mass Spectrometry; Oxygen Isotopes; Reproducibility of Results; Sensitivity a | 2009 |
Importance of using highly pure internal standards for successful liquid chromatography/tandem mass spectrometric bioanalytical assays.
Topics: Atovaquone; Chromatography, Liquid; Humans; Hydrogen; Isotope Labeling; Oxycodone; Reference Standar | 2009 |
Reversible interactions with para-hydrogen enhance NMR sensitivity by polarization transfer.
Topics: Carbon; Hydrogen; Iridium; Ligands; Magnetic Resonance Imaging; Magnetic Resonance Spectroscopy; Nia | 2009 |
A novel one-hour 13C-sorbitol breath test versus the H2-sorbitol breath test for assessment of coeliac disease.
Topics: Adolescent; Adult; Aged; Aged, 80 and over; Breath Tests; Carbon Isotopes; Case-Control Studies; Cel | 2009 |
Fast, sensitive hydrogen gas detection using single palladium nanowires that resist fracture.
Topics: Gases; Hydrogen; Metal Nanoparticles; Nanowires; Palladium; Sensitivity and Specificity | 2009 |
A nanoelectronic nose: a hybrid nanowire/carbon nanotube sensor array with integrated micromachined hotplates for sensitive gas discrimination.
Topics: Air Pollutants; Chemical Warfare Agents; Electrochemistry; Ethanol; Explosive Agents; Gases; Hydroge | 2009 |
Individual Pd nanowire hydrogen sensors fabricated by electron-beam lithography.
Topics: Electric Impedance; Electrons; Gases; Hydrogen; Linear Models; Microtechnology; Nanowires; Palladium | 2009 |
Quantifying endogenous glucose production and contributing source fluxes from a single 2H NMR spectrum.
Topics: Algorithms; Animals; Blood Chemical Analysis; Blood Glucose; Hydrogen; Magnetic Resonance Spectrosco | 2009 |
Surface plasmon resonance hydrogen sensor based on metallic grating with high sensitivity.
Topics: Biosensing Techniques; Equipment Design; Equipment Failure Analysis; Hydrogen; Palladium; Refractome | 2008 |
AMORE-HX: a multidimensional optimization of radial enhanced NMR-sampled hydrogen exchange.
Topics: Carrier Proteins; Escherichia coli Proteins; Fourier Analysis; Hydrogen; Kinetics; Maltose-Binding P | 2009 |
Evaluation of seminal citrate level by 1H nuclear magnetic resonance spectroscopy in men with spinal cord injury.
Topics: Adult; Biomarkers; Citric Acid; Down-Regulation; Humans; Hydrogen; Magnetic Resonance Spectroscopy; | 2009 |
Highly sensitive and reusable fluorescence microarrays based on hydrogenated amorphous silicon-carbon alloys.
Topics: Alloys; Carbon; DNA; Equipment Design; Equipment Failure Analysis; Equipment Reuse; Hydrogen; Oligon | 2009 |
Frequency of lactose malabsorption among healthy southern and northern Indian populations by genetic analysis and lactose hydrogen breath and tolerance tests.
Topics: Blood Glucose; Breath Tests; DNA; DNA Primers; Fasting; Genotype; Geography; Humans; Hydrogen; India | 2010 |
Specimen thickness dependence of hydrogen evolution during cryo-transmission electron microscopy of hydrated soft materials.
Topics: Animals; Artifacts; Cryoelectron Microscopy; Cryoultramicrotomy; Fluorocarbon Polymers; Hydrogen; Mi | 2009 |
Three-color multiplex CARS for fast imaging and microspectroscopy in the entire CHn stretching vibrational region.
Topics: Carbon; Colorimetry; Computer-Aided Design; Equipment Design; Equipment Failure Analysis; Hydrogen; | 2009 |
A combined nanoplasmonic and electrodeless quartz crystal microbalance setup.
Topics: Algorithms; Biotinylation; Hydrogen; Lipid Bilayers; Metal Nanoparticles; Microscopy, Electron, Scan | 2009 |
Periodontitis-specific molecular signatures in gingival crevicular fluid.
Topics: Amides; Biomarkers; Carbon; Chronic Periodontitis; Female; Gingival Crevicular Fluid; Gingival Hemor | 2010 |
Techno-economic analysis of biomass to fuel conversion via the MixAlco process.
Topics: Biofuels; Biomass; Computer Simulation; Costs and Cost Analysis; Ethanol; Fermentation; Gasoline; Hy | 2010 |
(1)H-MRS of brain metabolites in migraine without aura: absolute quantification using the phantom replacement technique.
Topics: Brain; Brain Chemistry; Calibration; Humans; Hydrogen; Magnetic Resonance Spectroscopy; Migraine wit | 2010 |
Determination of optical purity of 3,5-dimethoxybenzoyl-leucine diethylamide by chiral chromatography and 1H and 13C NMR spectroscopy.
Topics: Amino Acids; Carbon Isotopes; Chromatography; Chromatography, High Pressure Liquid; Dinitrobenzenes; | 2011 |
Selective detection of hyperpolarized NMR signals derived from para-hydrogen using the Only Para-hydrogen SpectroscopY (OPSY) approach.
Topics: Algorithms; Hydrogen; Magnetic Resonance Spectroscopy; Reproducibility of Results; Sensitivity and S | 2011 |
Hydrogen gas sensing with networks of ultrasmall palladium nanowires formed on filtration membranes.
Topics: Filtration; Gases; Hydrogen; Nanowires; Palladium; Sensitivity and Specificity | 2011 |
Sensitive non-radioactive determination of aminotransferase stereospecificity for C-4' hydrogen transfer on the coenzyme.
Topics: Catalysis; Coenzymes; Enzyme Assays; Hydrogen; Sensitivity and Specificity; Stereoisomerism; Substra | 2011 |
Characterization of a microelectromechanical systems-based counter-current flame ionization detector.
Topics: Flame Ionization; Hydrocarbons; Hydrogen; Micro-Electrical-Mechanical Systems; Oxygen; Sensitivity a | 2011 |
Follow-up of coeliac disease with the novel one-hour 13C-sorbitol breath test versus the H2-sorbitol breath test.
Topics: Adult; Aged; Aged, 80 and over; Breath Tests; Carbon Isotopes; Celiac Disease; Diet, Gluten-Free; Fe | 2011 |
HBonanza: a computer algorithm for molecular-dynamics-trajectory hydrogen-bond analysis.
Topics: Algorithms; Catalytic Domain; Hydrogen; Hydrogen Bonding; Ligands; Models, Molecular; Molecular Dyna | 2011 |
Regiospecific linear assembly of Pd nanocubes for hydrogen gas sensing.
Topics: Gases; Hydrogen; Microarray Analysis; Nanostructures; Palladium; Sensitivity and Specificity | 2012 |
Investigations on hydrogen isotope ratios of endogenous urinary steroids: reference-population-based thresholds and proof-of-concept.
Topics: Adult; Female; Gas Chromatography-Mass Spectrometry; Humans; Hydrogen; Male; Middle Aged; Reference | 2012 |
Measuring titratable alkalinity by single versus double endpoint titration: An evaluation in two cyprinodont species and implications for characterizing net H+ flux in aquatic organisms.
Topics: Acid-Base Equilibrium; Ammonia; Ammonium Chloride; Animals; Biological Transport; Fresh Water; Hydro | 2013 |
Effects of sample preparation on the measurement of organic carbon, hydrogen, nitrogen, sulfur, and oxygen concentrations in marine sediments.
Topics: Carbon; Chemistry Techniques, Analytical; Environmental Monitoring; Geologic Sediments; Hydrogen; In | 2002 |
Blue light modulation of ion transport in the slime mutant of Neurospora crassa.
Topics: 4,4'-Diisothiocyanostilbene-2,2'-Disulfonic Acid; Barium Compounds; Cell Line; Chlorides; Electric C | 2002 |
A hydrogen biosensor made of clay, poly(butylviologen), and hydrogenase sandwiched on a glass carbon electrode.
Topics: Aluminum Silicates; Biosensing Techniques; Carbon; Carbon Monoxide; Clay; Coated Materials, Biocompa | 2002 |
Bioreduction and biocrystallization of palladium by Desulfovibrio desulfuricans NCIMB 8307.
Topics: Catalysis; Cell Count; Crystallization; Desulfovibrio; Formates; Hydrogen; Hydrogen-Ion Concentratio | 2002 |
Hydrogen production by cyanobacteria in an automated outdoor photobioreactor under aerobic conditions.
Topics: Aerobiosis; Anabaena; Bioreactors; Cells, Cultured; Climate; Cyanobacteria; Equipment Design; Feedba | 2002 |
Substrate and product inhibition of hydrogen production by the extreme thermophile, Caldicellulosiruptor saccharolyticus.
Topics: Archaea; Bacteria, Anaerobic; Biodegradation, Environmental; Bioreactors; Cells, Cultured; Hydrogen; | 2003 |
Hydrogen breath test as an indicator of the quality of colonic preparation for colonoscopy.
Topics: Adult; Aged; Breath Tests; Cathartics; Colonic Diseases; Colonoscopy; Female; Gastrointestinal Trans | 2003 |
Hydration in proteins observed by high-resolution neutron crystallography.
Topics: Hydrogen; Hydrogen Bonding; Models, Molecular; Molecular Structure; Mutation; Myoglobin; Neutron Dif | 2003 |
Hydrogen ion-selective poly(vinyl chloride) membrane electrode based on a calix[4]arene.
Topics: Calixarenes; Hydrogen; Hydrogen-Ion Concentration; Ion-Selective Electrodes; Phenols; Polyvinyl Chlo | 2003 |
Downsizing improves sensitivity 100-fold for hydrogen exchange-mass spectrometry.
Topics: Amides; Chromatography, High Pressure Liquid; Deuterium; Hydrogen; Kinetics; Mass Spectrometry; Part | 2003 |
A new oxygen sensitivity and its potential application in photosynthetic H2 production.
Topics: Animals; Chlamydomonas reinhardtii; Eukaryota; Hydrogen; Oxygen; Photosynthesis; Sensitivity and Spe | 2003 |
Hydrogen/deuterium exchange on yeast ATPase supramolecular protein complex analyzed at high sensitivity by MALDI mass spectrometry.
Topics: Amino Acid Sequence; Deuterium; Hydrogen; Ion Exchange; Macromolecular Substances; Models, Molecular | 2003 |
NMR study of n-dodecane adsorbed on graphite.
Topics: Adsorption; Alkanes; Graphite; Hydrogen; Magnetic Resonance Spectroscopy; Membranes, Artificial; Pro | 2003 |
Determination of D- and L-alanine concentrations using a pyruvic acid sensor.
Topics: Alanine; Animals; Biosensing Techniques; Bivalvia; Electrochemistry; Environmental Pollutants; Equip | 2003 |
Spin-lattice relaxation of 13CH3 groups in 13C-enriched aspirin after proton saturation.
Topics: Aspirin; Carbon; Carbon Isotopes; Computer Simulation; Hydrogen; Magnetic Resonance Spectroscopy; Mo | 2003 |
Fast high-precision on-line determination of hydrogen isotope ratios of water or ice by continuous-flow isotope ratio mass spectrometry.
Topics: Calibration; Deuterium; Hydrogen; Ice; Mass Spectrometry; Reference Standards; Sensitivity and Speci | 2003 |
Applicability of short hydrogen breath test for screening of lactose malabsorption.
Topics: Adult; Breath Tests; Female; Humans; Hydrogen; Lactose Intolerance; Male; Middle Aged; Sensitivity a | 2003 |
Thermophilic H2 production from a cellulose-containing wastewater.
Topics: Bioreactors; Cellulose; Clostridium; Hydrogen; Hydrogen-Ion Concentration; Sensitivity and Specifici | 2003 |
Measurement of long range H,C couplings in natural products in orienting media: a tool for structure elucidation of natural products.
Topics: Carbon; Crystallization; Crystallography; Hydrogen; Hydrogen Bonding; Menthol; Molecular Conformatio | 2003 |
15N chemical shift anisotropy in protein structure refinement and comparison with NH residual dipolar couplings.
Topics: Algorithms; Anisotropy; bcl-2-Associated X Protein; Computer Simulation; Hydrogen; Hydrogen Bonding; | 2003 |
Steric specificity of hydrogen transfer in pyridine nucleotide dehydrogenase reactions.
Topics: Hydrogen; Nucleotides; Oxidoreductases; Pyridines; Sensitivity and Specificity | 1956 |
A piezoelectric-sound-resonance cavity for hydrogen gas detection.
Topics: Acoustics; Air Pollutants; Electrochemistry; Electronics; Environmental Monitoring; Equipment Failur | 2003 |
Use of different proteases working in acidic conditions to improve sequence coverage and resolution in hydrogen/deuterium exchange of large proteins.
Topics: Amino Acid Sequence; Aspergillus; Deuterium; Deuterium Exchange Measurement; Endopeptidases; Hydroge | 2003 |
Development of a method for the measurement of long-range 13C-1H coupling constants from HMBC spectra.
Topics: Algorithms; Carbon Isotopes; Feasibility Studies; Hydrogen; Hydrogen Bonding; Nuclear Magnetic Reson | 2004 |
Hydrogen-deuterium exchange effects on beta-endorphin release from AtT20 murine pituitary tumor cells.
Topics: Actin Cytoskeleton; Action Potentials; Animals; beta-Endorphin; Calcium; Calcium Channels; Calcium S | 2004 |
Precision 1H-1H distance measurement via 13C NMR signals: utilization of 1H-1H double-quantum dipolar interactions recoupled under magic angle spinning conditions.
Topics: Carbon Isotopes; Computer Simulation; Hydrogen; Magnetic Resonance Spectroscopy; Molecular Conformat | 2004 |
Simultaneous determination of twelve inorganic and organic arsenic compounds by liquid chromatography-ultraviolet irradiation-hydride generation atomic fluorescence spectrometry.
Topics: Animals; Arsenicals; Chromatography, Liquid; Crustacea; Hydrogen; Inorganic Chemicals; Organic Chemi | 2004 |
Dodecylsulfate-coated monolithic octadecyl-bonded silica stationary phase for high-speed separation of hydrogen, magnesium and calcium in rainwater.
Topics: Calcium; Chromatography; Ethylenediamines; Hydrogen; Hydrogen-Ion Concentration; Magnesium; Rain; Se | 2004 |
Evaluation of the pulsed discharge helium ionization detector for the analysis of hydrogen and methane in breath.
Topics: Breath Tests; Helium; Humans; Hydrogen; Methane; Reproducibility of Results; Sensitivity and Specifi | 2004 |
Sensitivity-enhanced IPAP experiments for measuring one-bond 13C'-13Calpha and 13Calpha-1Halpha residual dipolar couplings in proteins.
Topics: Algorithms; Bacterial Proteins; Carbon; Hydrogen; Hydrogen Bonding; Nuclear Magnetic Resonance, Biom | 2004 |
Internal dynamics of hydroxymethyl rotation from CH2 cross-correlated dipolar relaxation in methyl-beta-D-glucopyranoside.
Topics: Algorithms; Binding Sites; Carbon; Computer Simulation; Hydrogen; Macromolecular Substances; Magneti | 2004 |
Development of a microfabricated palladium decoupler/electrochemical detector for microchip capillary electrophoresis using a hybrid glass/poly(dimethylsiloxane) device.
Topics: Dimethylpolysiloxanes; Electrochemistry; Electrodes; Electrophoresis, Capillary; Electrophoresis, Mi | 2004 |
A comparative study of myo-inositol quantification using LCmodel at 1.5 T and 3.0 T with 3 D 1H proton spectroscopic imaging of the human brain.
Topics: Aspartic Acid; Brain; Dipeptides; Female; Humans; Hydrogen; Inositol; Magnetic Resonance Spectroscop | 2004 |
Polarographic behaviors of diclofenac sodium in the presence of dissolved oxygen and its analytical application.
Topics: Buffers; Calibration; Catalysis; Diclofenac; Electrolytes; Hydrogen; Hydrogen-Ion Concentration; Mol | 2004 |
Rapid and sensitive NMR method for osmolyte determination.
Topics: Amino Acids, Diamino; Betaine; Glutamic Acid; Halomonas; Hydrogen; Magnetic Resonance Spectroscopy; | 2004 |
X-ray studies of self-assembled organic monolayers grown on hydrogen-terminated Si(111).
Topics: Hydrogen; Membranes, Artificial; Microscopy, Atomic Force; Organosilicon Compounds; Sensitivity and | 2004 |
Automated breath hydrogen measurement at the part-per-million level on a continuous-flow isotope-ratio mass spectrometer.
Topics: Breath Tests; Flow Injection Analysis; Humans; Hydrogen; Mass Spectrometry; Microchemistry; Reproduc | 2004 |
Sensitive electrochemical determination of unlabeled MutS protein and detection of point mutations in DNA.
Topics: Carbon; Catalysis; DNA, Bacterial; Electrochemistry; Electrodes; Hydrogen; Mercury; MutS DNA Mismatc | 2004 |
New considerations about the separation and quantification of antimony species by ion chromatography-hydride generation atomic fluorescence spectrometry.
Topics: Antimony; Chromatography, High Pressure Liquid; Chromatography, Ion Exchange; Hydrogen; Reference St | 2004 |
A titania nanotube-array room-temperature sensor for selective detection of hydrogen at low concentrations.
Topics: Acetic Acid; Carbon Monoxide; Electric Impedance; Electricity; Electrochemistry; Hydrofluoric Acid; | 2004 |
Time-domain fiber laser hydrogen sensor.
Topics: Equipment Design; Equipment Failure Analysis; Fiber Optic Technology; Hydrogen; Lasers; Optical Fibe | 2004 |
Reference wavelengths for strong lines of atomic hydrogen and deuterium.
Topics: Deuterium; Government Agencies; Hydrogen; Reference Standards; Reference Values; Reproducibility of | 2004 |
Diagnostic interpretation of extended pH monitoring: is there a single best method?
Topics: Area Under Curve; Female; Gastroesophageal Reflux; Humans; Hydrogen; Hydrogen-Ion Concentration; Inf | 2005 |
Photoinduced adsorption of hydrogen and methane on gamma-alumina. the photoinduced chesorluminescence (PhICL) effect.
Topics: Adsorption; Aluminum Oxide; Hydrogen; Luminescence; Luminescent Measurements; Methane; Photochemistr | 2004 |
Monitoring of the ethionamide pro-drug activation in mycobacteria by (1)H high resolution magic angle spinning NMR.
Topics: Biotransformation; Ethionamide; Hydrogen; Magnetic Resonance Spectroscopy; Mycobacterium; Prodrugs; | 2005 |
Development of a rapid HPLC method for determination of famotidine in human plasma using a monolithic column.
Topics: Buffers; Calibration; Chemistry, Pharmaceutical; Chromatography; Chromatography, High Pressure Liqui | 2005 |
High-resolution 2D 1H-15N NMR characterization of persistent structural alterations of proteins induced by interactions with silica nanoparticles.
Topics: Hydrogen; Kinetics; Magnetic Resonance Spectroscopy; Models, Molecular; Nanostructures; Nitrogen; Pr | 2005 |
Characterization of the H2 sensing mechanism of Pd-promoted SnO2 by XAS in operando conditions.
Topics: Electric Conductivity; Hydrogen; Mass Spectrometry; Membranes, Artificial; Nanoparticles; Palladium; | 2005 |
Molecularly-defined lactose malabsorption, milk consumption and anthropometric differences in adult males.
Topics: Adult; Aged; Aged, 80 and over; Animals; Body Height; Body Weight; Bone Density; Breath Tests; Calci | 2005 |
Radical scavenging and catalytic activity of metal-phenolic complexes.
Topics: Catalysis; Copper; Electrodes; Free Radical Scavengers; Hydrogen; Iron; Ligands; Manganese; Metals, | 2005 |
Three-hour hydrogen breath test for assessing lactose malabsorption in clinical practice: to give 50 or 20 grams of lactose?
Topics: Administration, Oral; Breath Tests; Dose-Response Relationship, Drug; Humans; Hydrogen; Lactose; Lac | 2006 |
Interferences removal for cadmium determination in samples with complex matrices by hydride generation coupled with non-dispersive atomic fluorescence spectrometry.
Topics: Cadmium; Calibration; Copper; Hydrochloric Acid; Hydrogen; Iron; Lead; Metals, Heavy; Nickel; Sensit | 2006 |
Effect of air-pressure on room temperature hydrogen sensing characteristics of nanocrystalline doped tin oxide MEMS-based sensor.
Topics: Air; Electrochemistry; Electrodes; Equipment Design; Hydrogen; Indium; Ions; Materials Testing; Nano | 2005 |
H-point standard addition method--first derivative spectrophotometry for simultaneous determination of palladium and cobalt.
Topics: Alloys; Cobalt; Hydrogen; Hydrogen-Ion Concentration; Palladium; Sensitivity and Specificity; Spectr | 2006 |
Magic structures of h-passivated 110 silicon nanowires.
Topics: Hydrogen; Models, Chemical; Nanotubes; Particle Size; Sensitivity and Specificity; Silicon; Surface | 2006 |
Platinum dissolution and deposition in the polymer electrolyte membrane of a PEM fuel cell as studied by potential cycling.
Topics: Chemical Phenomena; Chemistry, Physical; Electric Power Supplies; Electrolytes; Hydrogen; Membranes, | 2006 |
Measurement of one-bond 13Calpha-1Halpha residual dipolar coupling constants in proteins by selective manipulation of CalphaHalpha spins.
Topics: Algorithms; Allergens; Antigens, Plant; Carbon Isotopes; Helminth Proteins; Hydrogen; Hydrogen Bondi | 2006 |
A passive microfluidic hydrogen-air fuel cell with exceptional stability and high performance.
Topics: Air; Electric Power Supplies; Electrochemistry; Electrodes; Equipment Design; Hydrogen; Microfluidic | 2006 |
Resolution enhancement in spectra of natural products dissolved in weakly orienting media with the help of 1H homonuclear dipolar decoupling during acquisition: application to 1H-13C dipolar couplings measurements.
Topics: Anisotropy; Artifacts; Carbon Isotopes; Hydrogen; Methanol; Nuclear Magnetic Resonance, Biomolecular | 2006 |
Hydrogen transfer pathways of the asymmetric reduction of alpha,beta-unsaturated ketone mediated by baker's yeast.
Topics: Hydrogen; Ketones; Magnetic Resonance Spectroscopy; Molecular Structure; NADP; Oxidation-Reduction; | 2006 |
Studies on photoinduced H-atom and electron transfer reactions of o-naphthoquinones by laser flash photolysis.
Topics: Electrons; Hydrogen; Lasers; Models, Chemical; Naphthoquinones; Oxygen; Photochemistry; Photolysis; | 2006 |
Does the most stable formic acid tetramer have pi stacking or C-H...O interactions?
Topics: Carbon; Chemistry, Physical; Computer Simulation; Dimerization; Formates; Hydrogen; Models, Theoreti | 2006 |
Mapping allostery through equilibrium perturbation NMR spectroscopy.
Topics: Allosteric Regulation; Binding Sites; Deuterium; Hydrogen; Ligands; Magnetic Resonance Spectroscopy; | 2006 |
Surface-nitrogen removal in a steady-state NO + H2 reaction on Pd(110).
Topics: Aluminum; Catalysis; Copper; Hydrogen; Mass Spectrometry; Nitric Oxide; Nitrogen; Palladium; Particl | 2005 |
Molecular hydrogen occupancy in binary THF-H2 clathrate hydrates by high resolution neutron diffraction.
Topics: Furans; Hydrogen; Neutron Diffraction; Sensitivity and Specificity | 2006 |
An ultrathin self-humidifying membrane for PEM fuel cell application: fabrication, characterization, and experimental analysis.
Topics: Electric Power Supplies; Equipment Design; Humidity; Hydrogen; Membranes, Artificial; Microscopy, El | 2006 |
Ni/SiO2 promoted growth of carbon nanofibers from chlorobenzene: characterization of the active metal sites.
Topics: Adsorption; Carbon; Carbon Fiber; Catalysis; Chlorobenzenes; Hydrogen; Microscopy, Electron, Scannin | 2006 |
Oligosaccharide structures studied by hydrogen-deuterium exchange and MALDI-TOF mass spectrometry.
Topics: Deuterium; Deuterium Exchange Measurement; Hydrogen; Molecular Structure; Oligosaccharides; Sensitiv | 2006 |
A measuring system for the fast simultaneous isotope ratio and elemental analysis of carbon, hydrogen, nitrogen and sulfur in food commodities and other biological material.
Topics: Carbon; Elements; Food Analysis; Food Contamination; Humans; Hydrogen; Isotope Labeling; Isotopes; M | 2006 |
Toward the nanoscopic "electronic nose": hydrogen vs carbon monoxide discrimination with an array of individual metal oxide nano- and mesowire sensors.
Topics: Biosensing Techniques; Carbon Dioxide; Electrochemistry; Electronics; Equipment Design; Equipment Fa | 2006 |
1H NMR spectroscopy in the diagnosis of Klebsiella pneumoniae-induced urinary tract infection.
Topics: Bacteria; Cell Survival; Humans; Hydrogen; Klebsiella Infections; Klebsiella pneumoniae; Magnetic Re | 2006 |
Semi-automated data processing of hydrogen exchange mass spectra using HX-Express.
Topics: Algorithms; Computer Simulation; Deuterium Exchange Measurement; Hydrogen; Models, Chemical; Models, | 2006 |
On the accurate measurement of amide one-bond 15N-1H couplings in proteins: effects of cross-correlated relaxation, selective pulses and dynamic frequency shifts.
Topics: Algorithms; Amides; Hydrogen; Magnetic Resonance Spectroscopy; Nitrogen Isotopes; Proteins; Protons; | 2006 |
Determination of cadmium in oyster tissue using isotope dilution inductively coupled plasma mass spectrometry: comparison of results obtained in the standard and He/H2 cell modes.
Topics: Animals; Cadmium; Helium; Hydrogen; Isotope Labeling; Mass Spectrometry; Molybdenum; Ostreidae; Repr | 2006 |
Impedance spectroscopy of reduced monoclinic zirconia.
Topics: Adsorption; Atmosphere; Electric Impedance; Electrochemistry; Hydrogen; Oxidation-Reduction; Oxygen; | 2006 |
Protonated heme.
Topics: Computer Simulation; Deuterium; Deuterium Exchange Measurement; Heme; Hydrogen; Ligands; Models, Che | 2007 |
Measuring fast hydrogen exchange rates by NMR spectroscopy.
Topics: Algorithms; Hydrogen; Magnetic Resonance Spectroscopy; Sensitivity and Specificity; Time Factors | 2007 |
Reliable determination of oxygen and hydrogen isotope ratios in atmospheric water vapour adsorbed on 3A molecular sieve.
Topics: Adsorption; Atmosphere; Flow Injection Analysis; Gases; Hydrogen; Mass Spectrometry; Oxygen Isotopes | 2006 |
Plastic reference electrodes and plastic potentiometric cells with dispersion cast poly(3,4-ethylenedioxythiophene) and poly(vinyl chloride) based membranes.
Topics: Biosensing Techniques; Bridged Bicyclo Compounds, Heterocyclic; Calcium; Cations; Electric Conductiv | 2007 |
Surface-enhanced Raman spectroscopy using gold-core platinum-shell nanoparticle film electrodes: toward a versatile vibrational strategy for electrochemical interfaces.
Topics: Adsorption; Benzene; Electrochemistry; Electrodes; Gold; Hydrogen; Membranes, Artificial; Nanopartic | 2006 |
Asymmetric induction in hydrogen-mediated reductive aldol additions to alpha-amino aldehydes catalyzed by rhodium: selective formation of syn-stereotriads directed by intramolecular hydrogen-bonding.
Topics: Alcohols; Aldehydes; Catalysis; Chromatography, High Pressure Liquid; Hydrogen; Hydrogen Bonding; Hy | 2006 |
Steps along the path to dihydrogen activation at [FeFe] hydrogenase structural models: dependence of the core geometry on electrocatalytic proton reduction.
Topics: Catalysis; Electrochemistry; Hydrogen; Hydrogenase; Iron-Sulfur Proteins; Models, Chemical; Oxidatio | 2007 |
UltraSOFAST HMQC NMR and the repetitive acquisition of 2D protein spectra at Hz rates.
Topics: Amides; Deuterium; Hydrogen; Hydrogen-Ion Concentration; Magnetic Resonance Spectroscopy; Protein Fo | 2007 |
Discrete thermal patterns of hydrogen and deuterium molecules enclathrated in confined hydrate cages.
Topics: Deuterium; Deuterium Oxide; Furans; Hydrogen; Neutron Diffraction; Sensitivity and Specificity; Temp | 2007 |
Visible-light induced hydrogen production using a polypeptide-chlorophyll complex with alpha-helix conformation.
Topics: Amines; Circular Dichroism; Electron Transport; Hydrogen; Hydrophobic and Hydrophilic Interactions; | 2007 |
Elimination of spin diffusion effects in saturation transfer experiments: application to hydrogen exchange in proteins.
Topics: Escherichia coli; Hydrogen; Magnetic Resonance Spectroscopy; Reference Standards; Sensitivity and Sp | 2007 |
Genetic testing improves the diagnosis of adult type hypolactasia in the Mediterranean population of Sardinia.
Topics: Adult; Aged; Breath Tests; Chromosomes, Human, Pair 2; Diagnosis, Differential; Female; Genetic Mark | 2007 |
Analyses, extensions and comparison of three experimental schemes for measuring ((n)J(CH)+D(CH))-couplings at natural abundance.
Topics: Algorithms; Carbon; Computer Simulation; Hydrogen; Models, Chemical; Models, Molecular; Nuclear Magn | 2007 |
Quantitative hydrogen analysis of zircaloy-4 using low-pressure laser plasma technique.
Topics: Calibration; Hydrogen; Lasers; Pressure; Sensitivity and Specificity; Surface Plasmon Resonance; Sur | 2007 |
Hydrogen dynamics in Na3AlH6: a combined density functional theory and quasielastic neutron scattering study.
Topics: Aluminum Compounds; Hydrogen; Models, Chemical; Neutrons; Quantum Theory; Scattering, Radiation; Sen | 2007 |
Metal oxide "nanosponges" as chemical sensors: highly sensitive detection of hydrogen with nanosponge titania.
Topics: Electrodes; Hydrogen; Nanostructures; Particle Size; Porosity; Sensitivity and Specificity; Surface | 2007 |
Catalytic stepwise nitrate hydrogenation in batch-recycle fixed-bed reactors.
Topics: Catalysis; Conservation of Natural Resources; Hydrogen; Lead; Nitrates; Nitrites; Oxidation-Reductio | 2007 |
Temperature effects on solute retention for hydride-based stationary phases.
Topics: Cholesterol; Chromatography, High Pressure Liquid; Hydrogen; Sensitivity and Specificity; Solubility | 2007 |
Direct observation and modelling of ordered hydrogen adsorption and catalyzed ortho-para conversion on ETS-10 titanosilicate material.
Topics: Adsorption; Catalysis; Computer Simulation; Hydrogen; Isomerism; Models, Chemical; Sensitivity and S | 2007 |
Efficiency measurement and uncertainty discussion of an electric engine powered by a "self-breathing" and "self-humidified" proton exchange membrane fuel cell.
Topics: Computer-Aided Design; Electric Power Supplies; Energy Transfer; Equipment Design; Equipment Failure | 2007 |
Platinum nanoparticle shape effects on benzene hydrogenation selectivity.
Topics: Benzene; Crystallization; Hydrogen; Macromolecular Substances; Materials Testing; Molecular Conforma | 2007 |
Purification of dinosterol for hydrogen isotopic analysis using high-performance liquid chromatography-mass spectrometry.
Topics: Chemical Fractionation; Cholestenes; Chromatography, High Pressure Liquid; Deuterium; Geologic Sedim | 2007 |
Morphology, structure, and magnetism of FeCo thin films electrodeposited on hydrogen-terminated Si(111) surfaces.
Topics: Alloys; Cobalt; Electrochemistry; Hydrogen; Iron; Magnetics; Membranes, Artificial; Particle Size; S | 2007 |
Elemental analysis of organic species with electron ionization high-resolution mass spectrometry.
Topics: Aerosols; Calibration; Carbon; Hydrogen; Organic Chemicals; Oxygen; Particle Size; Reproducibility o | 2007 |
Solvent effects on the oxidation of RuIV=O to O=RuVI=O by MnO4-. hydrogen-atom versus oxygen-atom transfer.
Topics: Hydrogen; Kinetics; Molecular Structure; Organometallic Compounds; Oxidation-Reduction; Oxygen; Pota | 2007 |
8-hydroxyquinolinyl azo dyes: a class of surface-enhanced resonance Raman scattering-based probes for ultrasensitive monitoring of enzymatic activity.
Topics: Azo Compounds; Burkholderia cepacia; Hydrogen; Lipase; Molecular Structure; Quinolines; Sensitivity | 2007 |
The effect of process parameters on the Liquid Flame Spray generated titania nanoparticles.
Topics: Aerosols; Hot Temperature; Hydrogen; Microfluidic Analytical Techniques; Nanoparticles; Oxygen; Part | 2007 |
Identification of different kinds of plastics using laser-induced breakdown spectroscopy for waste management.
Topics: Carbon; Hydrogen; Plastics; Sensitivity and Specificity; Spectrum Analysis; Waste Management | 2007 |
Nearest-neighbor oxygen distances in liquid water and ice observed by x-ray Raman based extended x-ray absorption fine structure.
Topics: Chemistry, Physical; Hydrogen; Hydrogen Bonding; Ice; Molecular Structure; Oxygen; Phase Transition; | 2007 |
Characterization and quantification of reversible redox sites in humic substances.
Topics: Carbon; Catalysis; Electrons; Glucose; Humic Substances; Hydrogen; Hydrogen-Ion Concentration; Model | 2007 |
Electronic spectra of radicals in a supersonic slit-jet discharge by degenerate and two-color four-wave mixing.
Topics: Carbon; Free Radicals; Hydrogen; Ions; Lasers; Sensitivity and Specificity; Spectrum Analysis; Sulfu | 2008 |
Classification of Italian honeys by 2D HR-NMR.
Topics: Animals; Bees; Carbon Isotopes; Discriminant Analysis; Food Contamination; Honey; Hydrogen; Magnetic | 2008 |
[FeFe]-hydrogenase-catalyzed H2 production in a photoelectrochemical biofuel cell.
Topics: Bioelectric Energy Sources; Catalysis; Clostridium acetobutylicum; Electrochemistry; Electrodes; Enz | 2008 |
Correlation between symptoms developed after the oral ingestion of 50 g lactose and results of hydrogen breath testing for lactose intolerance.
Topics: Administration, Oral; Adult; Breath Tests; Female; Humans; Hydrogen; Lactose; Lactose Intolerance; M | 2008 |
Hydrogen-activating enzymes: activity does not correlate with oxygen sensitivity.
Topics: Binding Sites; Electrodes; Enzyme Activation; Hydrogen; Hydrogenase; Oxygen; Protein Conformation; S | 2008 |
Internal magnetic fields of dianions of fullerene C60 and its cage-opened derivatives studied with encapsulated H2 as an NMR probe.
Topics: Anions; Fullerenes; Hydrogen; Magnetic Resonance Spectroscopy; Magnetics; Models, Chemical; Referenc | 2008 |
Exfoliated Pt-clay/Nafion nanocomposite membrane for self-humidifying polymer electrolyte fuel cells.
Topics: Aluminum Silicates; Clay; Electric Power Supplies; Electrodes; Electrolytes; Fluorocarbon Polymers; | 2008 |
Development of novel and sensitive methods for the determination of sulfide in aqueous samples by hydrogen sulfide generation-inductively coupled plasma-atomic emission spectroscopy.
Topics: Buffers; Calibration; Hydrogen; Hydrogen Sulfide; Oxygen; Sensitivity and Specificity; Solutions; Sp | 2008 |
Measurement of breath hydrogen and methane, together with lactase genotype, defines the current best practice for investigation of lactose sensitivity.
Topics: Adolescent; Adult; Aged; Breath Tests; Child; Child, Preschool; Female; Genotype; Humans; Hydrogen; | 2008 |
[Diagnosis of small intestinal bacterial overgrowth in children: the use of lactulose in the breath hydrogen test as a screening test].
Topics: Breath Tests; Child; Humans; Hydrogen; Intestine, Small; Lactase; Lactose; Lactulose; Mass Screening | 2007 |
Selective detection of vapor phase hydrogen peroxide with phthalocyanine chemiresistors.
Topics: Cobalt; Copper; Electric Impedance; Electrochemistry; Electrodes; Gases; Hydrogen; Hydrogen Peroxide | 2008 |
High-throughput screening assay for biological hydrogen production.
Topics: Biological Assay; Catalysis; Cyanobacteria; Hydrogen; Hydrogenation; Indicators and Reagents; Molecu | 2008 |
Platinum species in the pores of NaX, NaY and NaA zeolites studied using EPR, XAS and FTIR spectroscopies.
Topics: Adsorption; Carbon Monoxide; Electron Spin Resonance Spectroscopy; Hydrogen; Models, Molecular; Plat | 2008 |
Brain lesions in patients with AIDS: H-1 MR spectroscopy.
Topics: Abscess; Adult; AIDS Dementia Complex; Aspartic Acid; Brain Diseases; Brain Neoplasms; Choline; Crea | 1995 |
In vivo selective measurement of (1-13C)-glucose metabolism in tumors by heteronuclear cross polarization.
Topics: Absorption; Animals; Blood Glucose; Carbon Isotopes; Female; Fibrosarcoma; Glucose; Glycolysis; Hot | 1995 |
Computerized consensus diagnosis: a classification strategy for the robust analysis of MR spectra. I. Application to 1H spectra of thyroid neoplasms.
Topics: Adenocarcinoma, Follicular; Adenoma; Algorithms; Artifacts; Artificial Intelligence; Biopsy; Carcino | 1995 |
Fasting breath hydrogen concentrations in gastric and small-intestinal bacterial overgrowth.
Topics: Bacterial Infections; Breath Tests; Case-Control Studies; Chromatography, Gas; Duodenal Diseases; Du | 1995 |
Clinical applicability of shortened D-xylose breath test for diagnosis of intestinal malabsorption.
Topics: Adolescent; Adult; Aged; Breath Tests; Colonic Diseases, Functional; Female; Humans; Hydrogen; Intes | 1994 |
Magnesium hydrogen breath test using end expiratory sampling to assess achlorhydria in pernicious anaemia patients.
Topics: Achlorhydria; Anemia, Pernicious; Breath Tests; Duodenal Ulcer; Female; Gastric Mucosa; Humans; Hydr | 1994 |
NMR studies of 1H resonances in the 10-18-ppm range for cytosolic aspartate aminotransferase.
Topics: Amino Acid Sequence; Animals; Aspartate Aminotransferases; Base Sequence; Cloning, Molecular; Cytoso | 1994 |
NMR studies of 1H resonances in the 10-18-ppm range for aspartate aminotransferase from Escherichia coli.
Topics: Alanine; Amino Acid Sequence; Asparagine; Aspartate Aminotransferases; Escherichia coli; Histidine; | 1994 |
Resolution and sensitivity enhancement of heteronuclear correlation for methylene resonances via 2H enrichment and decoupling.
Topics: Carbon Isotopes; Escherichia coli; Free Radicals; Hydrocarbons; Hydrogen; Magnetic Resonance Spectro | 1993 |
Prevalence and consistency of low breath H2 excretion following lactulose ingestion. Possible implications for the clinical use of the H2 breath test.
Topics: Adult; Breath Tests; Carbohydrate Metabolism, Inborn Errors; Female; Humans; Hydrogen; Lactulose; Ma | 1993 |
Detection of malabsorption of low doses of carbohydrate: accuracy of various breath H2 criteria.
Topics: Adult; Aged; Anti-Bacterial Agents; Breath Tests; Carbohydrate Metabolism; Female; Humans; Hydrogen; | 1993 |
A quantitative one-dimensional magnetic resonance imaging technique in adjuvant arthritis: the assessment of disease progression and indomethacin efficacy.
Topics: Animals; Anti-Inflammatory Agents, Non-Steroidal; Arthritis, Experimental; Bone and Bones; Bone Reso | 1995 |
Are hydrogen breath tests valid in the elderly?
Topics: Aged; Aged, 80 and over; Bacteroides; Breath Tests; Clostridium; Colony Count, Microbial; Female; Hu | 1996 |
Assignment of aliphatic side-chain 1HN/15N resonances in perdeuterated proteins.
Topics: Amino Acid Sequence; Amino Acids; Arginine; Asparagine; Deuterium; Glutamine; Guanidine; Guanidines; | 1996 |
The lactulose breath hydrogen test and small intestinal bacterial overgrowth.
Topics: Bacterial Infections; Breath Tests; Fermentation; Humans; Hydrogen; Hydrogen-Ion Concentration; Inte | 1996 |
Quantitative tissue sodium concentration mapping of normal rat brain.
Topics: Animals; Brain; Calibration; Hydrogen; Image Enhancement; Image Processing, Computer-Assisted; Indic | 1996 |
Measurements of tissue blood flow by the hydrogen clearance technique (HCT): a comparative study including laser Doppler flowmetry (LDF) and the Erlangen micro-lightguide spectrophotometer (EMPHO).
Topics: Animals; Graft Occlusion, Vascular; Hydrogen; Laser-Doppler Flowmetry; Male; Radioisotopes; Rats; Ra | 1995 |
1H MRI phase thermometry in vivo in canine brain, muscle, and tumor tissue.
Topics: Animals; Body Temperature; Brain; Dog Diseases; Dogs; Forelimb; Hydrogen; Hyperthermia, Induced; Mag | 1996 |
Visual activation in alpha-chloralose-anaesthetized cats does not cause lactate accumulation in the visual cortex as detected by [1H]NMR difference spectroscopy.
Topics: Anesthesia, Intravenous; Animals; Cats; Chloralose; Darkness; Electric Stimulation; Evoked Potential | 1997 |
Frontotemporal dementia and early Alzheimer disease: differentiation with frontal lobe H-1 MR spectroscopy.
Topics: Aged; Aged, 80 and over; Alzheimer Disease; Aspartic Acid; Dementia; Discriminant Analysis; Female; | 1997 |
[The H2 breath test].
Topics: Breath Tests; Humans; Hydrogen; Lactose Tolerance Test; Malabsorption Syndromes; Sensitivity and Spe | 1997 |
Proton (1H) MR spectroscopy for routine diagnostic evaluation of brain lesions.
Topics: Adenocarcinoma; Adolescent; Adult; Aged; Aged, 80 and over; Aspartic Acid; Brain Diseases; Brain Neo | 1997 |
Should we test for lactose malabsorption?
Topics: Breath Tests; Humans; Hydrogen; Lactose; Lactose Intolerance; Sensitivity and Specificity | 1997 |
Quality control study of H2 breath testing for the diagnosis of carbohydrate malabsorption in Italy. The "Tenue Club" Group.
Topics: Breath Tests; Humans; Hydrogen; Italy; Lactose Intolerance; Prospective Studies; Quality Control; Re | 1997 |
Nuclear magnetic resonance by measuring reaction yield of spin symmetry species.
Topics: Hydrogen; Magnetic Resonance Spectroscopy; Models, Theoretical; Sensitivity and Specificity | 1998 |
Comparison of a portable breath hydrogen analyser (Micro H2) with a Quintron MicroLyzer in measuring lactose maldigestion, and the evaluation of a Micro H2 for diagnosing hypolactasia.
Topics: Adolescent; Adult; Aged; Blood Glucose; Breath Tests; Female; Galactose; Humans; Hydrogen; Lactose; | 1998 |
Measurement of cerebral blood flow in rats and mice by hydrogen clearance during hyperbaric oxygen exposure.
Topics: Animals; Breath Tests; Cerebrovascular Circulation; Hydrogen; Hyperbaric Oxygenation; Mice; Rats; Ra | 1998 |
Adiabatic mixing in the liquid state.
Topics: Algorithms; Calibration; Hydrogen; Image Enhancement; Magnetic Resonance Imaging; Magnetic Resonance | 1998 |
Sensitivity improvement of transverse relaxation-optimized spectroscopy.
Topics: Calbindins; Hydrogen; Macromolecular Substances; Magnetic Resonance Spectroscopy; Models, Theoretica | 1999 |
Multinuclear solid-state three-dimensional MRI of bone and synthetic calcium phosphates.
Topics: Bone and Bones; Calcium Phosphates; Humans; Hydrogen; Image Processing, Computer-Assisted; Magnetic | 1999 |
Non-invasive detection of low-intestinal lactase activity in children by use of a combined 13CO2/H2 breath test.
Topics: Adolescent; Adult; beta-Galactosidase; Breath Tests; Carbon Dioxide; Carbon Isotopes; Child; Child, | 1999 |
Ineffectiveness of breath methane excretion as a diagnostic test for lactose malabsorption.
Topics: Breath Tests; Child; Child, Preschool; Female; Humans; Hydrogen; Infant; Lactose Intolerance; Male; | 1999 |
On-line technique for measuring stable oxygen and hydrogen isotopes from microliter quantities of water.
Topics: Chemistry Techniques, Analytical; Hydrogen; Mass Spectrometry; Oxygen Isotopes; Sensitivity and Spec | 1999 |
[13C]-constant-time [15N,1H]-TROSY-HNCA for sequential assignments of large proteins.
Topics: Aldehyde-Lyases; Amides; Carbon Isotopes; Deuterium; Hydrogen; Nitrogen Isotopes; Nuclear Magnetic R | 1999 |
A J(CH)-modulated 2D (HACACO)NH pulse scheme for quantitative measurement of (13)C(alpha)-(1)H(alpha) couplings in (15)N, (13)C-labeled proteins.
Topics: Carbon; Carbon Isotopes; Hydrogen; Hydrogen Bonding; Magnetic Resonance Spectroscopy; Nitrogen; Nitr | 1999 |
Suppression of diagonal peaks in TROSY-type 1H NMR NOESY spectra of 15N-labeled proteins.
Topics: Animals; Deuterium; Electron Spin Resonance Spectroscopy; Hydrogen; Image Enhancement; Magnetic Reso | 1999 |
Semi-constant-time HMSQC (SCT-HMSQC-HA) for the measurement of (3)J(H(N))(H(alpha)) couplings in (15)N-labeled proteins.
Topics: Amino Acids; Bacterial Proteins; Calcium-Binding Proteins; Humans; Hydrogen; Hydrogen Bonding; Magne | 2000 |
Sensitivity enhancement of HCACO by using an HMQC magnetization transfer scheme.
Topics: Algorithms; Amides; Carbon Isotopes; Deuterium Oxide; Electron Spin Resonance Spectroscopy; Energy T | 2000 |
Simple suppression of spurious peaks in TROSY experiments.
Topics: Carrier Proteins; Cystatins; Cysteine Proteinase Inhibitors; DNA; DNA-Binding Proteins; Electron Spi | 2000 |
3hJ coupling between C(alpha) and H(N) across hydrogen bonds in proteins.
Topics: Carbon; Carbon Isotopes; Chymotrypsin; Electron Spin Resonance Spectroscopy; Hydrogen; Hydrogen Bond | 2000 |
Comparison of the 1-gram (14)C-D-xylose breath test and the 50-gram hydrogen glucose breath test for diagnosis of small intestinal bacterial overgrowth.
Topics: Adult; Aged; Aged, 80 and over; Bacteria; Bacterial Infections; Breath Tests; Carbon Dioxide; Carbon | 2000 |
Molecular alignment of proteins in bicellar solutions: quantitative evaluation of effects induced in 2D COSY spectra.
Topics: Animals; Anisotropy; Aprotinin; Cattle; Dimyristoylphosphatidylcholine; Hydrogen; Isotopes; Magnetic | 2000 |
Determination of inorganic and organic anionic arsenic species in water by ion chromatography coupled to hydride generation-inductively coupled plasma atomic emission spectrometry.
Topics: Arsenicals; Artifacts; Chromatography, High Pressure Liquid; Hydrogen; Mass Spectrometry; Reproducib | 2000 |
Analysis of the breath hydrogen test for carbohydrate malabsorption: validation of a pocket-sized breath test analyser.
Topics: Adolescent; Adult; Breath Tests; Carbohydrate Metabolism, Inborn Errors; Child; Child, Preschool; Fe | 2000 |
13C isotopomer analysis of glutamate by J-resolved heteronuclear single quantum coherence spectroscopy.
Topics: Animals; Carbon; Chemistry Techniques, Analytical; Glutamic Acid; Hydrogen; Magnetic Resonance Spect | 2001 |
Registered (1)H and (3)He magnetic resonance microscopy of the lung.
Topics: Animals; Anisotropy; Helium; Hydrogen; Image Enhancement; Image Processing, Computer-Assisted; Imagi | 2001 |
Optimal detection of the neutron capture therapy agent borocaptate sodium (BSH): a comparison between 1H and 10B NMR.
Topics: Biophysical Phenomena; Biophysics; Borohydrides; Boron; Boron Neutron Capture Therapy; Humans; Hydro | 2001 |
Multiplet component separation for measurement of methyl 13C-1H dipolar couplings in weakly aligned proteins.
Topics: Algorithms; Animals; Calmodulin; Carbon; Chemical Phenomena; Chemistry, Physical; Hydrogen; Nuclear | 2001 |
Measurements of protein stability by H/D exchange and matrix-assisted laser desorption/ionization mass spectrometry using picomoles of material.
Topics: Deuterium; Enzyme Stability; Hydrogen; Microchemistry; Proteins; Ribonuclease, Pancreatic; Sensitivi | 2001 |
Dipolar filtered 1H-13C heteronuclear correlation spectroscopy for resonance assignment of proteins.
Topics: Carbon Isotopes; Colicins; Escherichia coli Proteins; Glutamine; Glycerol; Histidine; Hydrogen; Nucl | 2001 |
[Evaluation of applied kinesiology in nutritional intolerance of childhood].
Topics: Adolescent; Breath Tests; Child; Child, Preschool; Dairy Products; Female; Food Hypersensitivity; Hu | 2001 |
Characterization of a hydrogen-producing granular sludge.
Topics: Alcohols; Bioreactors; Cloning, Organism; Clostridium; DNA, Ribosomal; Fatty Acids; Gases; Hydrogen; | 2002 |
Hydrogen/deuterium exchange for higher specificity of protein identification by peptide mass fingerprinting.
Topics: Amino Acid Sequence; Animals; Cattle; Deuterium; Hydrogen; Molecular Sequence Data; Peptide Mapping; | 2002 |
Thermodynamic stability measurements on multimeric proteins using a new H/D exchange- and matrix-assisted laser desorption/ionization (MALDI) mass spectrometry-based method.
Topics: Bacterial Proteins; Deuterium; DNA-Binding Proteins; Enzyme Stability; Hydrogen; Isomerases; Microch | 2002 |
Sustained hydrogen photoproduction by Chlamydomonas reinhardtii: Effects of culture parameters.
Topics: Aerobiosis; Anaerobiosis; Animals; Bioreactors; Cell Count; Chlamydomonas reinhardtii; Culture Media | 2002 |
Flow injection on-line sorption preconcentration coupled with hydride generation atomic fluorescence spectrometry for determination of (ultra)trace amounts of arsenic(III) and arsenic(V) in natural water samples.
Topics: Arsenic; Arsenicals; Equipment Design; Feasibility Studies; Fresh Water; Hydrogen; Seawater; Sensiti | 2002 |
Reduced-dimensionality NMR spectroscopy for high-throughput protein resonance assignment.
Topics: Carbon Isotopes; Hydrogen; Magnetic Resonance Spectroscopy; Nitrogen Isotopes; Protein Conformation; | 2002 |
Hydrogen and deuterium in myoglobin as seen by a neutron structure determination at 1.5 A resolution.
Topics: Animals; Crystallography; Deuterium; Hydrogen; Metmyoglobin; Movement; Myoglobin; Neutrons; Pliabili | 2002 |
Evaluation of mag-fura-5, the new fluorescent indicator for free magnesium measurements.
Topics: Calcium; Fluorescent Dyes; Fluorometry; Hydrogen; Hydrogen-Ion Concentration; Ions; Magnesium; Repro | 1992 |
The diagnosis of small bowel bacterial overgrowth in elderly patients.
Topics: Aged; Aged, 80 and over; Bacterial Infections; Bacteriological Techniques; Blood Chemical Analysis; | 1992 |
Breath hydrogen excretion or plasma acetate levels during the lactulose tolerance test?
Topics: Acetates; Administration, Oral; Adult; Aged; Breath Tests; Carbohydrates; Evaluation Studies as Topi | 1991 |
Breath hydrogen excretion as a screening test for the early diagnosis of necrotizing enterocolitis.
Topics: Breath Tests; Carbon Dioxide; Enterocolitis, Pseudomembranous; Humans; Hydrogen; Infant, Newborn; Pr | 1989 |