urea has been researched along with hydrogen in 139 studies
| Timeframe | Studies, this research(%) | All Research% |
|---|---|---|
| pre-1990 | 43 (30.94) | 18.7374 |
| 1990's | 14 (10.07) | 18.2507 |
| 2000's | 39 (28.06) | 29.6817 |
| 2010's | 32 (23.02) | 24.3611 |
| 2020's | 11 (7.91) | 2.80 |
| Authors | Studies |
|---|---|
| Griffith, DP; Schloeder, FX; Stinebaugh, BJ | 1 |
| Bloomfield, VA; Ellis, LM; Woodward, CK | 1 |
| Kurauchi, T; Nishida, M; Tanaka, C | 1 |
| Berry, MN; Gregory, RB; Phillips, JW | 1 |
| Neri, D; Wider, G; Wüthrich, K | 1 |
| Dunel-Erb, S; Ehrenfeld, J; Harvey, BJ; Lacoste, I; Laurent, P | 1 |
| Solomon, AK; Toon, MR | 1 |
| Chaimovitz, C; Hays, RM; Rapoport, J | 1 |
| Halangk, W; Letko, G | 1 |
| Karube, I | 1 |
| Hardy, RW; Jackson, EK; Parshall, GW | 1 |
| Mortenson, LE; Nakos, G | 1 |
| Thurau, K | 1 |
| Kaplan, NO; Louie, DD | 1 |
| Garnier, J; Maroc, J | 1 |
| Huang, JJ; Kimura, T | 1 |
| Bowen, JC; Fischer, RP; Jacobson, ED; Ritchie, WP | 1 |
| Barrnett, RJ; Litman, RB | 1 |
| Zweig, JI | 1 |
| Abernethy, JD | 1 |
| Lee, JP; LeGall, J; Peck, HD | 1 |
| Kuo, YJ; Sernka, TJ; Shanbour, LL | 1 |
| Benz, FW; Roberts, GC; Sadler, PJ | 1 |
| Abaturov, LV; Ginodman, LM; Varshavskiĭ, IaM | 1 |
| Ussing, HH | 1 |
| Ko, HL; Pulverer, G | 1 |
| Ammann, EC; Reed, LL | 1 |
| Marót, I; Neumark, T | 1 |
| Lerman, S; Tan, AT | 1 |
| Gary-Bobo, CM; Sha'afi, RI; Solomon, AK | 1 |
| Rosenberg, A; Woodward, CK | 2 |
| Hartsook, EW; Hershberger, TV | 1 |
| Cambiaso, CL; Dellacha, JM; Paladini, AC; Retegui, LA; Santomé, JA | 1 |
| Wolff, S | 1 |
| Szopa, J | 1 |
| Kamite, L; Wang, Y; Yamamoto, HY | 1 |
| Alanis, E; Gaston, OL; Moledo, LI; Morelli, OH; Terzaghi, O | 1 |
| Cerutti, P; Kondo, Y; Landis, WR; Witkop, B | 1 |
| Ackrell, BA; Asato, RN; Kidman, AD | 1 |
| Davenport, HW | 1 |
| Gardner, KD | 1 |
| Hilton, BD; Trudeau, K; Woodward, CK | 1 |
| Holz, RW | 1 |
| Kim, KS; Woodward, C | 1 |
| Anfinsen, CB; Davis, BR; Griko, YV; Krutzsch, HC; Laderman, KA; Lewis, MS; Privalov, PL | 1 |
| Kanaya, S; Ogasahara, K; Oobatake, M; Yamasaki, K; Yutani, K | 1 |
| Freire, E; Hilser, VJ | 1 |
| Chamberlain, AK; Marqusee, S | 1 |
| Hildebrand, P | 1 |
| Chen, G; Fournier, RL; Varanasi, S | 1 |
| Fogolari, F; Maubois, JL; Molinari, H; Ragona, L; Romagnoli, S; Zetta, L | 1 |
| Huyghues-Despointes, BM; Langhorst, U; Pace, CN; Scholtz, JM; Steyaert, J | 1 |
| Deng, Y; Smith, DL | 1 |
| Alexandrescu, AT; Jaravine, VA; Rathgeb-Szabo, K | 1 |
| Chalikian, TV; Filfil, R | 1 |
| Bedford, JJ; Leader, JP; Palmer, HR; Smith, RA | 1 |
| Hsieh, H; Kumar, TK; Samuel, D; Srimathi, T; Yu, C | 1 |
| Frieden, C; Hodsdon, ME | 1 |
| Bernard, JK; Martin, SA; Wedegaertner, TC | 1 |
| Engler, CR; Lacey, RE; Ricke, SC; Sterling, MC | 1 |
| Dodson, B; Morrison, DJ; Preston, T; Weaver, LT | 1 |
| Dobson, CM; Redfield, C; Wijesinha-Bettoni, R | 1 |
| Ghaemmaghami, S; Oas, TG | 1 |
| Houliston, RS; Liu, C; Meiering, EM; Singh, LM | 1 |
| Hollien, J; Marqusee, S | 1 |
| Cohen, FE; Marqusee, S; Mo, H; Nicholson, EM; Prusiner, SB | 1 |
| Charlesworth, JA; Mackinnon, B; Peake, PW; Pussell, BA | 1 |
| Berghmans, J; van 't Oost, E; van den Aarssen, A; Vandebroek, L; Verplaetsen, F; Vliegen, G; Winter, H | 1 |
| Fitzgerald, MC; Powell, KD | 1 |
| Bolen, DW; Qu, Y | 1 |
| Federici, L; Fersht, AR; Freund, SM; Lovell, SC; Luisi, BF; Mayor, U; Stollar, EJ | 1 |
| SCHELLMAN, JA | 1 |
| LING, GN | 1 |
| Kanesaka, I | 1 |
| Raza, AS; Smith, DL | 1 |
| Cheshmedzhieva, D; Galabov, B; Hadjieva, B; Ilieva, S | 1 |
| Vogtt, K; Winter, R | 1 |
| Frieden, C; Li, H | 1 |
| He, T; Priebe, MG; Vonk, RJ; Welling, GW | 1 |
| Choi, HG; Han, HH; Kim, JA; Kim, YI; Kwon, R; Park, JG; Park, SM; Rhee, JD; Yang, CY; Yong, CS; Yoo, BK | 1 |
| Kumaran, R; Ramamurthy, P | 1 |
| Alexandrova, AN; Jorgensen, WL | 1 |
| Baldini, L; Boyko, VI; Casnati, A; Kalchenko, VI; Sansone, F; Ungaro, R; Yakovenko, AV | 1 |
| Császár, AG; Demaison, J; Kleiner, I; Møllendal, H | 1 |
| Gibbs, BM; Javed, MT; Nimmo, W | 1 |
| Skulski, L; Zielinska, A | 1 |
| Bothner, B; Hilmer, JK; Zlotnick, A | 1 |
| Best, RB; Billings, KS; Clarke, J; Rutherford, TJ | 1 |
| BROWN, EA; KRABEK, W; SKIFFINGTON, R | 1 |
| Matthews, CR; Vadrevu, R; Wu, Y | 1 |
| Erathodiyil, N; Han, Y; Lee, SS; Ooi, S; Seayad, AM; Ying, JY | 1 |
| Berthold, HK; Gouni-Berthold, I; Horré, R; Marklein, G; Sauerbruch, T; Scheurlen, C; Schober, P | 1 |
| Boggs, BK; Botte, GG; King, RL | 1 |
| Baell, JB; Gable, RW; Lessene, G; Smith, BJ | 1 |
| Bowron, D; Koch, MH; Meersman, F; Soper, AK | 1 |
| Chary, KV; Srivastava, AK | 1 |
| Brown, JC; Dewal, MB; Ma, S; Roy, K; Shimizu, LS; Smith, MD; Wang, C; Wibowo, AC | 1 |
| Chakraborty, S; Hosur, RV; Mohan, PM | 1 |
| Islam, M; Mishra, PC; Patel, R | 1 |
| Chudzinski, MG; McClary, CA; Taylor, MS | 1 |
| Rebek, J; Tiefenbacher, K | 1 |
| Chen, W; Liu, J; Wu, G; Zhang, Y | 1 |
| Chen, W; Liu, J; Lu, L; Wu, G; Zhang, Y | 1 |
| Adsul, M; Bansal, V; Bhargava, SK; Soni, SK | 1 |
| Li, S; Li, Y; Lu, G; Peng, S; Xu, J | 1 |
| Gómez, R; Hernández-Gordillo, A; López, R; Oros-Ruiz, S; Zanella, R | 1 |
| Deng, F; Dong, YY; He, J; Ma, MG; Sun, RC; Xu, F; Zhao, JJ | 1 |
| Ghosh, S; Kar, H | 1 |
| Ojetti, V; Poscia, A; Scaldaferri, F; Volpe, M | 1 |
| Lin, Z; Wang, X | 1 |
| Itoh, N; Numata, M; Sato, A; Takatsu, A; Yamazaki, T | 1 |
| Deng, F; Ma, MG; Yao, K | 1 |
| Achilonu, I; Dirr, HW; Owen, GR; Stoychev, S | 1 |
| Feringa, BL; Kistemaker, JC; Vlatković, M; Wezenberg, SJ | 1 |
| Furukawa, S; Komatsu, T; Ochi, K; Suzuki, R; Yashima, T | 1 |
| Duan, L; Li, X; Peng, G; Sun, B; Xu, A | 1 |
| Li, K; Zhang, L; Zhu, C; Zhu, X | 1 |
| Brown, JM; Rauf, W | 1 |
| Al-Ayoubi, SR; Golub, M; Peters, J; Schummel, PH; Winter, R | 1 |
| Wang, B; Wang, X; Yang, C; Yin, L; Zhang, L | 1 |
| Bottin, H; Cassier-Chauvat, C; Chauvat, F; Jittawuttipoka, T; Ortega-Ramos, M; Veaudor, T | 1 |
| Davis, MD; Fowler, SJ; Montpetit, AJ | 1 |
| Cao, G; Dong, L; Liu, B; Ren, N; Zhao, L | 1 |
| Bannink, A; Deng, JP; Long, DL; Mao, HX; Tan, ZL; Ungerfeld, EM; Wang, M; Wang, R; Zhang, XM | 1 |
| Barney, BM; Knutson, CM; Liming, RA; Plunkett, MH | 1 |
| Anand, DV; Mu, Y; Shikhar, S; Xia, K | 1 |
| Knowles, RR; Miller, SJ; Ryss, JM; Shin, NY; Zhang, X | 1 |
| Fan, ZY; Hu, X; Huber, GW; Jin, S; Li, HC; Liu, WJ; Pan, XQ; Wang, WK; Xu, Z; Yu, HQ; Zhao, D; Zhao, GH | 1 |
| Dumont, E; Lacôte, E; Lelli, M; Vilona, D | 1 |
| Hunger, J; Marekha, BA | 1 |
| Levinger, NE; Miller, SL | 1 |
| Kahru, A; Kanger, T; Kriis, K; Sihtmäe, M; Silm, E | 1 |
| Asiain-Mira, R; Monsalvo, VM; Smith, C; Torrente-Murciano, L; Zamora, P | 1 |
| Cheng, B | 1 |
| Roy, P; Sinha, N | 1 |
| Liu, Q; Liu, X; Luo, J; Shen, H; Wei, T; Zhang, S | 1 |
| Feng, Y; Han, C; Jiang, Z; Li, Y; Liu, J; Yuan, X | 1 |
| Bon, M; Mackenzie, ES; Martin, MP; Stewart, HL; Waddell, PG; Wang, LZ; Waring, MJ; Wills, C | 1 |
6 review(s) available for urea and hydrogen
| Article | Year |
|---|---|
[Enzyme-tip sensor].
Topics: Bacteria; Blood Glucose; Enzymes, Immobilized; Humans; Hydrogen; Hydrogen Peroxide; Lipids; Microelectrodes; Oxides; Palladium; Penicillins; Semiconductors; Silicon; Transducers; Urea | 1985 |
Aspects in renal physiology.
Topics: Angiotensin II; Animals; Biological Transport; Fishes; Glomerular Filtration Rate; Hydrogen; Hydrogen-Ion Concentration; Juxtaglomerular Apparatus; Kidney; Kidney Concentrating Ability; Natriuresis; Renin; Sodium; Urea | 1972 |
Effects of lysine on ammonia formation, hydrogen ion, and potassium ion balance: a review and an hypothesis.
Topics: Acid-Base Equilibrium; Adolescent; Adult; Ammonia; Animals; Arginine; Biological Transport; Cystinuria; Diabetes Mellitus; Dogs; Dose-Response Relationship, Drug; Electrocardiography; Female; Hepatic Encephalopathy; Humans; Hydrogen; Hydrogen-Ion Concentration; Hypokalemia; In Vitro Techniques; Insulin; Liver Cirrhosis; Liver Diseases; Lysine; Male; Models, Biological; Potassium; Pregnancy; Rats; Urea | 1973 |
The interpretation of tracer fluxes in terms of membrane structure.
Topics: Animals; Anura; Biological Transport; Carbon Isotopes; Chlorides; Galactose; Hydrogen; In Vitro Techniques; Membrane Potentials; Osmolar Concentration; Osmosis; Osmotic Pressure; Potassium; Radioisotopes; Skin; Sodium; Sucrose; Urea | 1969 |
[Breath tests: noninvasive functional-related diagnostic tests in gastroenterology].
Topics: Breath Tests; Carbon Dioxide; Carbon Radioisotopes; Gastrointestinal Diseases; Humans; Hydrogen; Sensitivity and Specificity; Urea | 1998 |
Exhaled breath testing - A tool for the clinician and researcher.
Topics: Biomarkers; Breath Tests; Carbon Dioxide; Carbon Monoxide; Exhalation; Humans; Hydrogen; Nitric Oxide; Urea; Volatile Organic Compounds | 2019 |
3 trial(s) available for urea and hydrogen
| Article | Year |
|---|---|
In vitro mixed ruminal microorganism fermentation of whole cottonseed coated with gelatinized corn starch and urea.
Topics: Animals; Bacteria, Anaerobic; Cattle; Cottonseed Oil; Fermentation; Gelatin; Hydrogen; Hydrogen-Ion Concentration; Methane; Rumen; Starch; Urea; Zea mays | 2001 |
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; Helicobacter Infections; Helicobacter pylori; Humans; Polyethylene Glycols; Sensitivity and Specificity; Sodium Dodecyl Sulfate; Solubility; Time Factors; Urea | 2006 |
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; Intestine, Small; Lactose; Male; Middle Aged; Sensitivity and Specificity; Urea | 2009 |
130 other study(ies) available for urea and hydrogen
| Article | Year |
|---|---|
Evaluation of renal acidification in patients with urea-splitting organisms.
Topics: Acidosis, Renal Tubular; Adult; Aged; Ammonium Chloride; Bicarbonates; Carbon Dioxide; Female; Humans; Hydrogen; Hydrogen-Ion Concentration; Male; Middle Aged; Nephrons; Partial Pressure; Proteus Infections; Urea; Urease; Urinary Calculi; Urinary Tract Infections | 1978 |
Hydrogen-tritium exchange kinetics of soybean trypsin inhibitor (Kunitz). Solvent accessibility in the folded conformation.
Topics: Binding Sites; Calorimetry; Hydrogen; Hydrogen-Ion Concentration; Kinetics; Mathematics; Protein Binding; Protein Conformation; Solvents; Temperature; Thermodynamics; Time Factors; Tritium; Trypsin Inhibitor, Kunitz Soybean; Trypsin Inhibitors; Urea; Water | 1975 |
[Syntheses of oxazolecarboxylic acid derivatives. XII. Hydrogenolysis of aminoxazoles. (5). Syntheses of alkenylureas (author's transl)].
Topics: Alkenes; Hydrogen; Oxazoles; Oxidation-Reduction; Urea | 1976 |
Reducing-equivalent transfer to the mitochondria during gluconeogenesis and ureogenesis in hepatocytes from rats of different thyroid status.
Topics: Alanine; Animals; Aspartic Acid; Biological Transport; Cells, Cultured; Cytoplasm; Gluconeogenesis; Glutamates; Glutamic Acid; Hydrogen; Hyperthyroidism; Hypothyroidism; Male; Malonates; Mitochondria, Liver; NAD; Pyruvates; Pyruvic Acid; Rats; Rats, Wistar; Thyroid Gland; Urea | 1992 |
Complete 15N and 1H NMR assignments for the amino-terminal domain of the phage 434 repressor in the urea-unfolded form.
Topics: Amino Acid Sequence; Binding Sites; Coliphages; Hydrogen; Magnetic Resonance Spectroscopy; Molecular Sequence Data; Nitrogen Isotopes; Protein Conformation; Protein Denaturation; Repressor Proteins; Urea; Viral Proteins | 1992 |
Active urea transport independent of H+ and Na+ transport in frog skin epithelium.
Topics: Adenosine Triphosphatases; Animals; Biological Transport; Biological Transport, Active; Electrophysiology; Epithelium; Hydrogen; Hydrogen-Ion Concentration; Microscopy, Electron; Rana esculenta; Skin; Skin Physiological Phenomena; Sodium; Urea | 1991 |
Transport parameters in the human red cell membrane: solute-membrane interactions of amides and ureas.
Topics: Amides; Biological Transport; Erythrocyte Membrane; Erythrocyte Volume; Humans; Hydrogen; Membrane Lipids; Urea; Water | 1991 |
Active urea transport in toad skin is coupled to H+ gradients.
Topics: Animals; Biological Transport, Active; Bufonidae; Epithelium; Hydrogen; Hydrogen-Ion Concentration; Ions; Mucous Membrane; Proton-Translocating ATPases; Skin; Time Factors; Urea | 1989 |
Effect of improved hydrogen supply on energy state, ureogenesis and gluconeogenesis in isolated hepatocytes.
Topics: Adenosine Diphosphate; Adenosine Triphosphate; Ammonia; Animals; Caprylates; Carbonyl Cyanide p-Trifluoromethoxyphenylhydrazone; Energy Metabolism; Gluconeogenesis; Hydrogen; Lactates; Lactic Acid; Liver; Ornithine; Phenazines; Urea | 1986 |
Hydrogen reactions of nitrogenase. Formation of the molecule HD by nitrogenase and by an inorganic model.
Topics: Adenosine Triphosphatases; Ammonia; Azotobacter; Binding Sites; Cell-Free System; Deuterium; Hydrazines; Hydrogen; Imides; Models, Biological; Nitrogen; Nitrogen Fixation; Oxidoreductases; Partial Pressure; Platinum; Protons; Radioisotopes; Urea; Water | 1968 |
Structural properties of hydrogenase from Clostridium pasteurianum W5.
Topics: Amino Acids; Anaerobiosis; Carbohydrates; Chelating Agents; Chemical Phenomena; Chemistry; Clostridium; Detergents; Dialysis; Electron Spin Resonance Spectroscopy; Electrophoresis, Disc; Ferredoxins; Hydrogen; Iron; Isoenzymes; Molecular Weight; Organomercury Compounds; Oxidation-Reduction; Oxidoreductases; Phenanthrolines; Spectrophotometry; Sulfhydryl Reagents; Sulfides; Sulfites; Sulfuric Acids; Urea | 1971 |
Stereospecificity of hydrogen transfer reactions of the Pseudomonas aeruginosa pyridine nucleotide transhydrogenase.
Topics: Adenine Nucleotides; Chemical Phenomena; Chemistry; Circular Dichroism; Flavin-Adenine Dinucleotide; Hydrogen; NAD; NADP; Niacinamide; Oxidoreductases; Pseudomonas aeruginosa; Spectrophotometry; Temperature; Tritium; Urea | 1970 |
[Studies of the CO 2 exchanges of whole cells and of the photochemical activities of chloroplast fragments, with three non-photosynthetic mutants of Chlamydomonas reinhardti].
Topics: Aerobiosis; Anaerobiosis; Ascorbic Acid; Carbon Dioxide; Chlamydomonas; Chlorophyta; Chloroplasts; Electron Transport; Ferricyanides; Hydrogen; Indophenol; Light; Models, Chemical; Mutation; NADP; Phenazines; Phenols; Plant Proteins; Sulfites; Urea; Water | 1972 |
Studies on adrenal steroid hydroxylases. Oxidation-reduction properties of adrenal iron-sulfur protein (adrenodoxin).
Topics: Adrenal Glands; Animals; Cattle; Chemical Phenomena; Chemistry; Coloring Agents; Cytochrome c Group; Evaluation Studies as Topic; Ferredoxins; Ferricyanides; Hydrogen; Hydrogen-Ion Concentration; Indophenol; Mitochondria; NADH, NADPH Oxidoreductases; NADP; Osmolar Concentration; Oxidation-Reduction; Oxidoreductases; Paraquat; Phenols; Potassium Chloride; Potentiometry; Steroid Hydroxylases; Sulfites; Urea | 1973 |
Increased phenolsulfonphthalein absorption following disruption of the gastric mucosal barrier by urea.
Topics: Animals; Chlorides; Dogs; Gastric Mucosa; Hydrogen; Hydrogen-Ion Concentration; Phenolphthaleins; Phenolsulfonphthalein; Potassium; Radioisotopes; Sodium; Sodium Isotopes; Temperature; Urea | 1974 |
The mechanism of the fixation of tissue components by osmium tetroxide via hydrogen bonding.
Topics: Acetates; Animals; Chemical Phenomena; Chemistry; Drug Interactions; Esters; Ferrocyanides; Histocytochemistry; Histological Techniques; Hydrogen; Liver; Male; Methods; Microscopy, Electron; Osmium; Oxides; Potassium; Rats; Spectrum Analysis; Urea | 1972 |
Inert gases in the kidney: influence of the countercurrent multiplication of sodium.
Topics: Animals; Argon; Countercurrent Distribution; Diffusion; Dogs; Helium; Humans; Hydrogen; Kidney; Kidney Medulla; Kidney Tubules, Distal; Male; Models, Biological; Nitrogen; Partial Pressure; Sodium; Urea | 1972 |
Isolation of assimilatroy- and dissimilatory-type sulfite reductases from Desulfovibrio vulgaris.
Topics: Bacterial Proteins; Borohydrides; Carbon Monoxide; Cell-Free System; Chemical Precipitation; Chromatography, DEAE-Cellulose; Chromatography, Gel; Desulfovibrio; Electrophoresis, Disc; Hydrogen; Manometry; Molecular Weight; Oxidation-Reduction; Oxidoreductases; Spectrophotometry; Sulfides; Sulfites; Thiosulfates; Ultracentrifugation; Urea | 1973 |
Effect of ethanol on permeability and ion transport in the isolated dog stomach.
Topics: Animals; Biological Transport; Chlorides; Dogs; Ethanol; Gastric Mucosa; Histamine; Hydrogen; Hydrogen-Ion Concentration; Permeability; Sodium; Time Factors; Urea | 1974 |
The effect of chloroplatinite on the 1H NMR spectrum of ribonuclease. Solvent accessibility of methionine residues.
Topics: Animals; Binding Sites; Cattle; Chlorine; Deuterium; Dioxins; Hydrogen; Hydrogen-Ion Concentration; Magnetic Resonance Spectroscopy; Methionine; Pancreas; Platinum; Protein Binding; Protein Conformation; Ribonucleases; Solvents; Urea | 1974 |
[Deuterium metabolism in pepsin and pepsinogen].
Topics: Animals; Deuterium; Enzyme Precursors; Hydrogen; Hydrogen-Ion Concentration; In Vitro Techniques; Pepsin A; Swine; Urea | 1967 |
Actinobacillus actinomycetem-comitans: fermentative capabilities of 140 strains.
Topics: Actinobacillus; Bacteriological Techniques; Carbohydrate Metabolism; Fermentation; Gelatin; Hydrogen; Hydrogen-Ion Concentration; Indicators and Reagents; Indoles; Nitrates; Species Specificity; Sulfides; Urea | 1970 |
Metabolism of nitrogen compounds by Hydrogenomonas eutropha. I. Utilization of uric acid, allantoin, hippuric acid, and creatinine.
Topics: Allantoin; Carbon Dioxide; Chromatography, Paper; Creatinine; Culture Media; Hippurates; Humans; Hydantoins; Hydrogen; Life Support Systems; Mutation; Nitrogen; Oxygen; Pseudomonas; Quaternary Ammonium Compounds; Urea; Uric Acid | 1967 |
The importance of hydrogen linkages playing a role in the fibre formation of acid-soluble collagen, investigated by urea.
Topics: Animals; Chemical Phenomena; Chemical Precipitation; Chemistry; Chondroitin; Collagen; Hydrogen; In Vitro Techniques; Microscopy, Electron; Rats; Sulfuric Acids; Tendons; Urea | 1966 |
Studies on insoluble lens proteins.
Topics: Animals; Calcium Chloride; Cattle; Centrifugation; Chlorides; Crystallins; Hydrogen; Lens, Crystalline; Methods; Sharks; Sodium Chloride; Sodium Hydroxide; Solubility; Spectrophotometry; Urea | 1972 |
Permeability of red cell membranes to small hydrophilic and lipophilic solutes.
Topics: Acetamides; Amides; Animals; Binding Sites; Cell Membrane Permeability; Chemical Phenomena; Chemistry, Physical; Dogs; Erythrocytes; Ethers; Formamides; Glycols; Hemolysis; Humans; Hydrogen; In Vitro Techniques; Lipids; Methods; Osmolar Concentration; Propylene Glycols; Solubility; Solvents; Species Specificity; Urea; Water | 1971 |
Studies of hydrogen exchange in proteins. V. The correlation of ribonuclease exchange kinetics with the temperature-induced transition.
Topics: Animals; Binding Sites; Cattle; Chemical Phenomena; Chemistry; Ethanol; Hydrogen; Hydrogen-Ion Concentration; Kinetics; Mathematics; Models, Chemical; Protein Binding; Ribonucleases; Temperature; Thermodynamics; Tritium; Urea | 1971 |
Studies of hydrogen exchange in proteins. VI. Urea effects on ribonuclease exchange kinetics leading to a general model for hydrogen exchange from folded proteins.
Topics: Animals; Binding Sites; Cattle; Chemical Phenomena; Chemistry; Chemistry, Physical; Ethanol; Hydrogen; Hydrogen-Ion Concentration; Kinetics; Mathematics; Models, Chemical; Protein Binding; Ribonucleases; Temperature; Tritium; Urea | 1971 |
In vitro rumen fermentation of alfalfa hay. Carbon dioxide, methane, VFA and heat production.
Topics: Animal Feed; Animals; Calcium Chloride; Carbohydrate Metabolism; Carbon Dioxide; Carbonates; Digestion; Fatty Acids; Fermentation; Hot Temperature; Hydrogen; Medicago sativa; Methane; Phosphates; Rumen; Sulfates; Urea | 1970 |
H-exchange behaviour and extent of reversible conformation changes in human, bovine, ovine, porcine and equine growth hormones.
Topics: Animals; Cattle; Chemical Phenomena; Chemistry; Deuterium; Dialysis; Growth Hormone; Horses; Humans; Hydrogen; Hydrogen-Ion Concentration; Kinetics; Sheep; Swine; Tritium; Urea | 1970 |
On the "tertiary " structure of chromosomes.
Topics: Chemical Phenomena; Chemistry; Chromatids; Chromosome Aberrations; Chromosomes; Culture Techniques; Dimethyl Sulfoxide; DNA; Glycerol; Humans; Hydrogen; Lymphocytes; Radiation Genetics; Urea | 1970 |
Complexes of histones with deoxyribonucleic acid.
Topics: Animals; Arginine; Cattle; Chemical Phenomena; Chemistry; DNA; Histones; Hydrogen; Lysine; Osmolar Concentration; Sodium Chloride; Spectrophotometry; Temperature; Thymus Gland; Urea; Viscosity | 1970 |
A chloroplast absorbance change from violaxanthin de-epoxidation. A possible component of 515 nm changes.
Topics: Anti-Bacterial Agents; Ascorbic Acid; Carotenoids; Chloroplasts; Ethers, Cyclic; Hydrogen; Imines; Kinetics; Photochemistry; Plant Cells; Quinones; Spectrophotometry; Urea | 1971 |
Acute effects of high doses of frusemide in patients with chronic renal failure.
Topics: Acid-Base Equilibrium; Bicarbonates; Creatinine; Furosemide; Humans; Hydrogen; Kidney Failure, Chronic; Kidney Tubules; Metabolic Clearance Rate; Potassium; Sodium; Time Factors; Urea; Uric Acid; Urine | 1971 |
Photoreduction of uridine and reduction of dihydrouridine with sodium borohydride.
Topics: Boron Compounds; Chemical Phenomena; Chemistry; Hydrogen; Light; Oxidation-Reduction; Urea; Uridine | 1968 |
Properties of three isoenzymes of Clostridium pasteurianum hydrogenase.
Topics: Centrifugation, Density Gradient; Chromatography, Gel; Clostridium; Electrophoresis, Disc; Guanidines; Hydrogen; Isoenzymes; Mercaptoethanol; Molecular Weight; Oxidoreductases; Sodium Chloride; Urea | 1968 |
Destruction of the gastric mucosal barrier by detergents and urea.
Topics: Acids; Animals; Bile Acids and Salts; Biological Transport; Cell Membrane Permeability; Denervation; Detergents; Dogs; Gastric Mucosa; Hydrogen; Potassium; Sodium; Sodium Chloride; Sulfates; Urea | 1968 |
Composition of fluid in twelve cysts of a polycystic kidney.
Topics: Adult; Amino Acids; Ammonia; Body Fluids; Calcium; Chromatography; Creatinine; Glucose; Humans; Hydrogen; Magnesium; Male; Nitrogen; Osmolar Concentration; Osmosis; Polycystic Kidney Diseases; Potassium; Sodium; Urea; Water | 1969 |
Hydrogen exchange rates in pancreatic trypsin inhibitor are not correlated to thermal stability in urea.
Topics: Drug Stability; Hydrogen; Hydrogen-Ion Concentration; Kinetics; Temperature; Tritium; Trypsin Inhibitor, Kazal Pancreatic; Trypsin Inhibitors; Urea | 1981 |
Correlation of the effects of bretylium, guanethidine, and N,N-diisopropyl-N'-isoamyl-N'-diethylaminoethylurea (P-286) on the H+ electrochemical gradient across the chromaffin granule membrane and on chromaffin granule function.
Topics: Adenosine Triphosphate; Animals; Bretylium Compounds; Catecholamines; Cattle; Chromaffin Granules; Chromaffin System; Guanethidine; Hydrogen; Membrane Potentials; Membranes; Urea | 1980 |
Protein internal flexibility and global stability: effect of urea on hydrogen exchange rates of bovine pancreatic trypsin inhibitor.
Topics: Animals; Aprotinin; Cattle; Hydrogen; In Vitro Techniques; Magnetic Resonance Spectroscopy; Motion; Pancreas; Protein Structure, Secondary; Protein Structure, Tertiary; Temperature; Thermodynamics; Urea | 1993 |
The purification and characterization of an extremely thermostable alpha-amylase from the hyperthermophilic archaebacterium Pyrococcus furiosus.
Topics: alpha-Amylases; Amino Acid Sequence; Archaea; Calorimetry, Differential Scanning; Chromatography, Ion Exchange; Circular Dichroism; Electrophoresis, Polyacrylamide Gel; Enzyme Stability; Hot Temperature; Hydrogen; Hydrogen-Ion Concentration; Kinetics; Molecular Sequence Data; Spectrometry, Fluorescence; Spectrophotometry, Ultraviolet; Substrate Specificity; Urea | 1993 |
Folding pathway of Escherichia coli ribonuclease HI: a circular dichroism, fluorescence, and NMR study.
Topics: Amino Acid Sequence; Circular Dichroism; Enzyme Stability; Escherichia coli; Guanidine; Guanidines; Hydrogen; Kinetics; Magnetic Resonance Spectroscopy; Models, Molecular; Molecular Sequence Data; Molecular Structure; Mutagenesis, Site-Directed; Protein Denaturation; Protein Folding; Protein Structure, Secondary; Ribonuclease H; Spectrometry, Fluorescence; Thermodynamics; Urea | 1995 |
Predicting the equilibrium protein folding pathway: structure-based analysis of staphylococcal nuclease.
Topics: Enzyme Stability; Hydrogen; Micrococcal Nuclease; Models, Molecular; Protein Conformation; Protein Folding; Urea | 1997 |
Molten globule unfolding monitored by hydrogen exchange in urea.
Topics: Circular Dichroism; Escherichia coli; Hydrogen; Models, Molecular; Nuclear Magnetic Resonance, Biomolecular; Protein Denaturation; Protein Folding; Ribonuclease H; Urea | 1998 |
A mathematical model for the generation and control of a pH gradient in an immobilized enzyme system involving acid generation.
Topics: Acids; Buffers; Enzymes, Immobilized; Hydrogen; Hydrogen-Ion Concentration; Hydrolysis; Mathematics; Models, Chemical; Urea; Urease | 1998 |
Unfolding and refolding of bovine beta-lactoglobulin monitored by hydrogen exchange measurements.
Topics: Amino Acid Motifs; Amino Acid Sequence; Animals; Calorimetry, Differential Scanning; Cattle; Circular Dichroism; Hydrogen; Hydrogen Bonding; Hydrogen-Ion Concentration; Kinetics; Lactoglobulins; Nuclear Magnetic Resonance, Biomolecular; Protein Denaturation; Protein Folding; Protein Renaturation; Protein Structure, Secondary; Protons; Thermodynamics; Urea | 1999 |
Hydrogen-exchange stabilities of RNase T1 and variants with buried and solvent-exposed Ala --> Gly mutations in the helix.
Topics: Alanine; Amino Acid Substitution; Crystallography, X-Ray; Glycine; Hydrogen; Mutagenesis, Site-Directed; Nuclear Magnetic Resonance, Biomolecular; Protein Conformation; Protein Denaturation; Protein Structure, Secondary; Ribonuclease T1; Solvents; Urea | 1999 |
Rate and equilibrium constants for protein unfolding and refolding determined by hydrogen exchange-mass spectrometry.
Topics: Animals; Chromatography, High Pressure Liquid; Deuterium; Fructose-Bisphosphate Aldolase; Hydrogen; In Vitro Techniques; Kinetics; Protein Denaturation; Protein Folding; Protein Structure, Tertiary; Proteins; Rabbits; Spectrometry, Mass, Electrospray Ionization; Thermodynamics; Urea | 1999 |
Microscopic stability of cold shock protein A examined by NMR native state hydrogen exchange as a function of urea and trimethylamine N-oxide.
Topics: Bacterial Proteins; Circular Dichroism; Drug Stability; Hydrogen; Hydrogen Bonding; Magnetic Resonance Spectroscopy; Methylamines; Models, Molecular; Protein Conformation; Protein Denaturation; Protein Structure, Secondary; Thermodynamics; Urea | 2000 |
Volumetric and spectroscopic characterizations of the native and acid-induced denatured states of staphylococcal nuclease.
Topics: Acids; Circular Dichroism; Dose-Response Relationship, Drug; Hydrogen; Hydrogen-Ion Concentration; Kinetics; Micrococcal Nuclease; Protein Conformation; Protein Denaturation; Protein Folding; Solutions; Spectrophotometry, Ultraviolet; Thermodynamics; Ultrasonics; Urea; Water | 2000 |
31P and 1H NMR studies of the effect of the counteracting osmolyte trimethylamine-N-oxide on interactions of urea with ribonuclease A.
Topics: Animals; Cattle; Hydrogen; Methylamines; Nuclear Magnetic Resonance, Biomolecular; Oxidants; Phosphorus; Poly U; Protein Conformation; Ribonuclease, Pancreatic; Urea | 2000 |
Identification and characterization of an equilibrium intermediate in the unfolding pathway of an all beta-barrel protein.
Topics: Anilino Naphthalenesulfonates; Chromatography; Densitometry; Deuterium; Dose-Response Relationship, Drug; Electrophoresis, Polyacrylamide Gel; Fibroblast Growth Factor 1; Fibroblast Growth Factor 2; Fluorescent Dyes; Guanidine; Heparin; Humans; Hydrogen; Kinetics; Magnetic Resonance Spectroscopy; Models, Molecular; Protein Binding; Protein Conformation; Protein Folding; Protein Structure, Secondary; Spectrometry, Fluorescence; Time Factors; Urea | 2000 |
Intestinal fatty acid binding protein: the folding mechanism as determined by NMR studies.
Topics: Animals; Carrier Proteins; Deuterium; Dose-Response Relationship, Drug; Fatty Acid-Binding Protein 7; Fatty Acid-Binding Proteins; Fatty Acids; Hydrogen; Hydrogen Bonding; Intestinal Mucosa; Neoplasm Proteins; Nerve Tissue Proteins; Nuclear Magnetic Resonance, Biomolecular; Protein Denaturation; Protein Folding; Protein Renaturation; Protein Structure, Secondary; Rats; Spectrometry, Fluorescence; Urea | 2001 |
Effects of ammonia nitrogen of H2 and CH4 production during anaerobic digestion of dairy cattle manure.
Topics: Ammonia; Animals; Calibration; Cattle; Dose-Response Relationship, Drug; Fermentation; Hydrogen; Hydrogen-Ion Concentration; Manure; Methane; Nitrogen; Time Factors; Urea | 2001 |
Rapid quality control analysis of (13)C-enriched substrate synthesis by isotope ratio mass spectrometry.
Topics: Breath Tests; Carbon Isotopes; Child; Chromatography, Thin Layer; Clostridium; Glucose; Humans; Hydrogen; Intestine, Small; Lactose; Magnetic Resonance Spectroscopy; Mass Spectrometry; Models, Theoretical; Molecular Structure; Spectroscopy, Fourier Transform Infrared; Urea; Urine; Water | 2001 |
Comparison of the denaturant-induced unfolding of the bovine and human alpha-lactalbumin molten globules.
Topics: Animals; Cattle; Humans; Hydrogen; Lactalbumin; Magnetic Resonance Spectroscopy; Models, Molecular; Protein Conformation; Protein Denaturation; Urea | 2001 |
Quantitative protein stability measurement in vivo.
Topics: Escherichia coli; Hydrogen; Hydrogen-Ion Concentration; Protein Denaturation; Proteins; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; Temperature; Thermodynamics; Urea | 2001 |
pH and urea dependence of amide hydrogen-deuterium exchange rates in the beta-trefoil protein hisactophilin.
Topics: Amides; Carrier Proteins; Deuterium; Hydrogen; Hydrogen-Ion Concentration; Kinetics; Microfilament Proteins; Models, Molecular; Protein Conformation; Protein Denaturation; Protozoan Proteins; Urea | 2002 |
Comparison of the folding processes of T. thermophilus and E. coli ribonucleases H.
Topics: Circular Dichroism; Escherichia coli; Fluorescence; Hydrogen; Isomerism; Kinetics; Magnetic Resonance Spectroscopy; Models, Molecular; Mutation; Proline; Protein Conformation; Protein Denaturation; Protein Folding; Protein Renaturation; Ribonuclease H; Thermodynamics; Thermus thermophilus; Urea | 2002 |
Differences between the prion protein and its homolog Doppel: a partially structured state with implications for scrapie formation.
Topics: Amino Acid Sequence; Animals; Circular Dichroism; Cricetinae; GPI-Linked Proteins; Hydrogen; Mesocricetus; Mice; Models, Molecular; Molecular Sequence Data; Prions; Protein Conformation; Protein Denaturation; Protein Folding; PrPSc Proteins; Scrapie; Sequence Alignment; Sequence Homology, Amino Acid; Structure-Activity Relationship; Thermodynamics; Urea | 2002 |
The effect of pH and nucleophiles on complement activation by human proximal tubular epithelial cells.
Topics: Ammonia; Blood; Cells, Cultured; Complement Activation; Complement C3; Complement C9; Complement System Proteins; Electrophysiology; Epithelial Cells; Humans; Hydrogen; Hydrogen-Ion Concentration; Kidney Tubules, Proximal; Urea; Urine | 2002 |
Auto-ignition hazard of mixtures of ammonia, hydrogen, methane and air in a urea plant.
Topics: Ammonia; Chemical Industry; Explosions; Forecasting; Hydrogen; Methane; Models, Chemical; Pressure; Risk Assessment; Safety; Urea | 2002 |
Accuracy and precision of a new H/D exchange- and mass spectrometry-based technique for measuring the thermodynamic properties of protein-peptide complexes.
Topics: Amino Acid Sequence; Calorimetry; Deuterium; Deuterium Oxide; Hydrogen; Kinetics; Ligands; Molecular Sequence Data; Peptide Fragments; Ribonuclease, Pancreatic; Ribonucleases; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; src Homology Domains; Thermodynamics; Urea | 2003 |
Hydrogen exchange kinetics of RNase A and the urea:TMAO paradigm.
Topics: Adaptation, Physiological; Binding Sites; Deuterium; Hydrogen; Hydrogen-Ion Concentration; In Vitro Techniques; Kinetics; Methylamines; Protein Denaturation; Ribonuclease, Pancreatic; Thermodynamics; Urea | 2003 |
Crystal structures of engrailed homeodomain mutants: implications for stability and dynamics.
Topics: Animals; Crystallography, X-Ray; Drosophila; Homeodomain Proteins; Humans; Hydrogen; Indoles; Leucine; Magnetic Resonance Spectroscopy; Models, Molecular; Mutagenesis, Site-Directed; Mutation; Protein Conformation; Protein Structure, Tertiary; Software; Transcription Factors; Tryptophan; Urea; Water | 2003 |
The thermodynamics of urea solutions and the heat of formation of the peptide hydrogen bond.
Topics: Hot Temperature; Hydrogen; Hydrogen Bonding; Peptides; Solutions; Thermodynamics; Urea | 1955 |
THE ROLE OF INDUCTIVE EFFECT IN COOPERATIVE PHENOMENA OF PROTEINS.
Topics: Chemical Phenomena; Chemistry, Physical; Hydrogen; Peptides; Protein Denaturation; Proteins; Sulfhydryl Compounds; Urea | 1964 |
Infrared intensity in dielectric media by an electrostatic model.
Topics: Carbon; Chloroform; Hydrocarbons, Brominated; Hydrogen; Lithium; Models, Molecular; Models, Statistical; Quaternary Ammonium Compounds; Spectrophotometry, Infrared; Static Electricity; Temperature; Urea | 2004 |
Optimization of conditions for studies of protein unfolding by hydrogen exchange/mass spectrometry.
Topics: Deuterium Exchange Measurement; Fungal Proteins; Hydrogen; Mass Spectrometry; Protein Denaturation; Protein Folding; Protein Structure, Tertiary; Transaldolase; Urea | 2004 |
Conformation of some biologically active aromatic ureas.
Topics: Hydrogen; Hydrogen Bonding; Models, Chemical; Models, Molecular; Models, Theoretical; Molecular Conformation; Nitrogen; Spectrophotometry, Infrared; Urea | 2005 |
Pressure-assisted cold denaturation of hen egg white lysozyme: the influence of co-solvents probed by hydrogen exchange nuclear magnetic resonance.
Topics: Animals; Chickens; Cold Temperature; Egg White; Hot Temperature; Hydrogen; Hydrostatic Pressure; Magnetic Resonance Imaging; Muramidase; Protein Denaturation; Solvents; Sorbitol; Urea | 2005 |
Phenylalanine side chain behavior of the intestinal fatty acid-binding protein: the effect of urea on backbone and side chain stability.
Topics: Animals; Binding Sites; Crystallography, X-Ray; Deuterium; Diffusion; Dose-Response Relationship, Drug; Fatty Acid-Binding Proteins; Humans; Hydrogen; Magnetic Resonance Spectroscopy; Molecular Conformation; p-Fluorophenylalanine; Phenylalanine; Polyethylene Glycols; Protein Binding; Protein Conformation; Protein Denaturation; Protein Folding; Protein Structure, Secondary; Rats; Urea | 2005 |
Effect of lactose on oro-cecal transit in lactose digesters and maldigesters.
Topics: Adult; Asian People; Breath Tests; Carbon Isotopes; Female; Gastrointestinal Transit; Glucose; Humans; Hydrogen; Lactose; Lactose Intolerance; Male; Urea; White People | 2006 |
PET suppression of acridinedione dyes by urea derivatives in water and methanol.
Topics: Acridines; Electron Transport; Fluorescent Dyes; Hydrogen; Hydrogen Bonding; Hydrophobic and Hydrophilic Interactions; Methanol; Micelles; Nitrogen; Photochemistry; Solvents; Spectrometry, Fluorescence; Time Factors; Urea; Water | 2006 |
Why urea eliminates ammonia rather than hydrolyzes in aqueous solution.
Topics: Ammonia; Catalysis; Chemistry, Physical; Hydrogen; Hydrogen Bonding; Hydrolysis; Ions; Models, Molecular; Models, Theoretical; Molecular Conformation; Monte Carlo Method; Thermodynamics; Urea | 2007 |
N-linked peptidocalix[4]arene bisureas as enantioselective receptors for amino acid derivatives.
Topics: Amino Acids; Anions; Binding Sites; Calixarenes; Chemistry, Organic; Hydrogen; Ligands; Magnetic Resonance Spectroscopy; Models, Molecular; Molecular Structure; Peptides; Phenols; Phenylalanine; Spectrometry, Mass, Electrospray Ionization; Stereoisomerism; Urea | 2007 |
Equilibrium vs ground-state planarity of the CONH linkage.
Topics: Acetamides; Carbamates; Carbon Monoxide; Electrons; Hydrogen; Nitrogen; Urea; Vibration | 2007 |
Experimental and modeling study of the effect of CO and H2 on the urea DeNO(x) process in a 150kW laboratory reactor.
Topics: Carbon Monoxide; Environmental Restoration and Remediation; Hydrogen; Kinetics; Models, Theoretical; Nitrogen Oxides; Urea | 2008 |
Easy and Safe preparations of (diacetoxyiodo) arenes from iodoarenes, with urea-hydrogen peroxide adduct (UHP) as the oxidant and the fully interpreted (1)H- and (13)C-NMR spectra of the products.
Topics: Carbamide Peroxide; Carbon Isotopes; Chemistry, Organic; Drug Combinations; Hydrogen; Iodine Compounds; Magnetic Resonance Spectroscopy; Naphthalenes; Oxidants; Peroxides; Transition Temperature; Urea | 2005 |
Conformational equilibria and rates of localized motion within hepatitis B virus capsids.
Topics: Amino Acid Sequence; Capsid Proteins; Computer Simulation; Deuterium; Dimerization; Escherichia coli; Hepatitis Viruses; Humans; Hydrogen; Hydrolysis; Hydrophobic and Hydrophilic Interactions; Kinetics; Models, Biological; Models, Chemical; Models, Molecular; Molecular Sequence Data; Motion; Protein Conformation; Protein Denaturation; Protein Folding; Protein Structure, Secondary; Protein Structure, Tertiary; Recombinant Proteins; Temperature; Thermodynamics; Thermolysin; Time Factors; Trypsin; Urea | 2008 |
Crosstalk between the protein surface and hydrophobic core in a core-swapped fibronectin type III domain.
Topics: Amino Acid Sequence; Cell Adhesion; Fibronectins; Genetic Variation; Guanidines; Humans; Hydrogen; Hydrogen-Ion Concentration; Hydrophobic and Hydrophilic Interactions; Isothiocyanates; Kinetics; Models, Chemical; Models, Molecular; Molecular Sequence Data; Mutant Chimeric Proteins; Mutation; Nuclear Magnetic Resonance, Biomolecular; Protein Folding; Protein Structure, Quaternary; Protein Structure, Secondary; Protein Structure, Tertiary; Surface Properties; Tenascin; Thermodynamics; Urea | 2008 |
Glycerite of hydrogen peroxide with urea; comparison by in vitro methods of its bacteriotoxic action with that of three proprietary aural preparations.
Topics: Hydrogen; Hydrogen Peroxide; In Vitro Techniques; Urea | 1948 |
NMR analysis of partially folded states and persistent structure in the alpha subunit of tryptophan synthase: implications for the equilibrium folding mechanism of a 29-kDa TIM barrel protein.
Topics: Amides; Amino Acids; Deuterium; Escherichia coli; Hydrogen; Hydrogen Bonding; Isotope Labeling; Magnetic Resonance Spectroscopy; Molecular Weight; Nitrogen Isotopes; Protein Folding; Protein Structure, Secondary; Protein Subunits; Thermodynamics; Time Factors; Tryptophan Synthase; Urea | 2008 |
Palladium nanoclusters supported on propylurea-modified siliceous mesocellular foam for coupling and hydrogenation reactions.
Topics: Alcohols; Alkenes; Catalysis; Esters; Ethers; Hydrocarbons, Halogenated; Hydrogen; Hydrogenation; Ketones; Metal Nanoparticles; Molecular Structure; Organometallic Compounds; Organosilicon Compounds; Palladium; Particle Size; Stereoisomerism; Urea | 2008 |
Urea electrolysis: direct hydrogen production from urine.
Topics: Electrochemistry; Electrolysis; Hydrogen; Molecular Structure; Urea; Urine | 2009 |
Characterization of the two fundamental conformations of benzoylureas and elucidation of the factors that facilitate their conformational interchange.
Topics: Chemistry, Organic; Chloroform; Crystallography, X-Ray; Dimethyl Sulfoxide; Hydrogen; Hydrogen Bonding; Magnetic Resonance Spectroscopy; Models, Chemical; Molecular Conformation; Solvents; Spectrophotometry, Infrared; Urea | 2009 |
Counteraction of urea by trimethylamine N-oxide is due to direct interaction.
Topics: Biophysics; Computer Simulation; Hydrogen; Hydrogen Bonding; Hydrogen-Ion Concentration; Methylamines; Models, Chemical; Neutrons; Oxygen; Peptides; Scattering, Radiation; Solutions; Solvents; Urea; Water | 2009 |
Sequence specific 1H, 13C and 15N resonance assignments of hahellin in 8 M urea.
Topics: Amino Acid Sequence; Carbon Isotopes; Crystallins; Gammaproteobacteria; Hydrogen; Nitrogen Isotopes; Nuclear Magnetic Resonance, Biomolecular; Protein Denaturation; Protein Structure, Secondary; Urea | 2010 |
Guest induced transformations of assembled pyridyl bis-urea macrocycles.
Topics: Carbon Dioxide; Crystallography, X-Ray; Hydrogen; Iodine; Macrocyclic Compounds; Models, Molecular; Molecular Structure; Pyridines; Urea | 2011 |
Hierarchy of local structural and dynamics perturbations due to subdenaturing urea in the native state ensemble of DLC8 dimer.
Topics: Circular Dichroism; Cytoplasmic Dyneins; Dimerization; Humans; Hydrogen; Nuclear Magnetic Resonance, Biomolecular; Protein Structure, Tertiary; Protein Unfolding; Spectrometry, Fluorescence; Thermodynamics; Urea | 2010 |
Arsenate removal from aqueous solution by cellulose-carbonated hydroxyapatite nanocomposites.
Topics: Arsenates; Carbon; Cellulose; Crystallization; Durapatite; Hydrogen-Ion Concentration; Kinetics; Nanocomposites; Nanostructures; Solutions; Temperature; Thermodynamics; Time Factors; Urea; Water Pollutants, Chemical; Water Purification | 2011 |
Anion receptors composed of hydrogen- and halogen-bond donor groups: modulating selectivity with combinations of distinct noncovalent interactions.
Topics: Anions; Fluorine; Halogens; Hydrogen; Hydrogen Bonding; Iodine; Magnetic Resonance Spectroscopy; Urea | 2011 |
Selective stabilization of self-assembled hydrogen-bonded molecular capsules through π-π interactions.
Topics: Capsules; Chemistry, Organic; Chemistry, Physical; Dimerization; DNA; Hydrogen; Hydrogen Bonding; Macromolecular Substances; Magnetic Resonance Spectroscopy; Molecular Conformation; Molecular Structure; Protein Conformation; Protein Folding; Proteins; Urea | 2012 |
Porous graphitic carbon nitride synthesized via direct polymerization of urea for efficient sunlight-driven photocatalytic hydrogen production.
Topics: Catalysis; Cyanamide; Hydrogen; Light; Nitriles; Oxygen; Polymerization; Porosity; Solar Energy; Urea | 2012 |
Self-regenerated solar-driven photocatalytic water-splitting by urea derived graphitic carbon nitride with platinum nanoparticles.
Topics: Catalysis; Hydrogen; Metal Nanoparticles; Nitriles; Oxidation-Reduction; Peroxides; Photochemical Processes; Platinum; Semiconductors; Sunlight; Surface Properties; Urea; Water | 2012 |
Facile approach for the dispersion of regenerated cellulose in aqueous system in the form of nanoparticles.
Topics: Cellulose; Drug Carriers; Hydrogen-Ion Concentration; Hydrolysis; Microscopy, Electron, Transmission; Nanoparticles; Scattering, Small Angle; Sodium Hydroxide; Sonication; Spectroscopy, Fourier Transform Infrared; Suspensions; Urea; Water; X-Ray Diffraction | 2012 |
Eosin Y-sensitized graphitic carbon nitride fabricated by heating urea for visible light photocatalytic hydrogen evolution: the effect of the pyrolysis temperature of urea.
Topics: Catalysis; Eosine Yellowish-(YS); Heating; Hydrogen; Light; Nitriles; Photochemical Processes; Temperature; Urea | 2013 |
Photocatalytic hydrogen production by water/methanol decomposition using Au/TiO2 prepared by deposition-precipitation with urea.
Topics: Gold; Hydrogen; Metal Nanoparticles; Methanol; Photochemical Processes; Titanium; Ultraviolet Rays; Urea; Water | 2013 |
Environmentally friendly ultrosound synthesis and antibacterial activity of cellulose/Ag/AgCl hybrids.
Topics: Aluminum Chloride; Aluminum Compounds; Anti-Bacterial Agents; Cellulose; Chlorides; Escherichia coli; Green Chemistry Technology; Silver Compounds; Silver Nitrate; Sodium Hydroxide; Sonication; Spectroscopy, Fourier Transform Infrared; Staphylococcus aureus; Thermogravimetry; Urea; X-Ray Diffraction | 2014 |
Three component assemblies by orthogonal H-bonding and donor-acceptor charge-transfer interaction.
Topics: Amides; Gels; Hydrogen; Hydrogen Bonding; Imides; Models, Molecular; Naphthalenes; Urea | 2014 |
Breath tests sustainability in hospital settings: cost analysis and reimbursement in the Italian National Health System.
Topics: Allied Health Personnel; Ambulatory Care; Biomarkers; Breath Tests; Carbon Dioxide; Carbon Isotopes; Cost-Benefit Analysis; Gases; Gastroenterology; Gastrointestinal Diseases; Hospital Costs; Hospitals; Humans; Hydrogen; Insurance, Health, Reimbursement; Italy; Models, Economic; National Health Programs; Predictive Value of Tests; Salaries and Fringe Benefits; Urea | 2013 |
Ionic liquid promoted synthesis of conjugated carbon nitride photocatalysts from urea.
Topics: Catalysis; Hydrogen; Imidazoles; Ionic Liquids; Light; Nanostructures; Nitriles; Photochemical Processes; Polymerization; Surface Properties; Urea | 2014 |
A certified urea reference material (NMIJ CRM 6006-a) as a reliable calibrant for the elemental analyses of amino acids and food samples.
Topics: Amino Acids; Animals; Calibration; Carbon; Fish Products; Food Analysis; Glycine max; Hydrogen; Milk; Nitrogen; Reference Standards; Reproducibility of Results; Urea | 2014 |
Manganese-containing cellulose nanocomposites: the restrain effect of cellulose treated with NaOH/urea aqueous solutions.
Topics: Cellulose; Manganese; Nanocomposites; Sodium Hydroxide; Solutions; Urea | 2014 |
Phosphorylation- and nucleotide-binding-induced changes to the stability and hydrogen exchange patterns of JNK1β1 provide insight into its mechanisms of activation.
Topics: Adenosine Triphosphate; Amino Acid Sequence; Binding Sites; Catalytic Domain; Deuterium Exchange Measurement; Enzyme Activation; Escherichia coli; Humans; Hydrogen; MAP Kinase Signaling System; Mass Spectrometry; Mitogen-Activated Protein Kinase 10; Mitogen-Activated Protein Kinase 8; Molecular Sequence Data; Nucleotides; Phosphorylation; Protein Binding; Protein Conformation; Protein Structure, Tertiary; Solvents; Temperature; Thermodynamics; Urea | 2014 |
Multi-state regulation of the dihydrogen phosphate binding affinity to a light- and heat-responsive bis-urea receptor.
Topics: Binding Sites; Hot Temperature; Hydrogen; Light; Molecular Conformation; Phosphates; Quantum Theory; Urea | 2014 |
Hydrogen Production from Aqueous Solutions of Urea with Ruthenium-based Catalysts.
Topics: Catalysis; Hydrogen; Ruthenium; Solutions; Urea; Water | 2015 |
Efficient production of glucose by microwave-assisted acid hydrolysis of cellulose hydrogel.
Topics: Cellulose; Glucose; Hydrogel, Polyethylene Glycol Dimethacrylate; Hydrolysis; Microwaves; Sodium Hydroxide; Urea | 2015 |
Study on pyrolysis characteristics of lignocellulosic biomass impregnated with ammonia source.
Topics: Acetates; Ammonia; Ammonium Sulfate; Biomass; Carbon Monoxide; Charcoal; Fertilizers; Heterocyclic Compounds; Hydrogen; Lignin; Oryza; Phenols; Urea | 2016 |
Palladium-catalysed directed C-H activation by anilides and ureas; water participation in a general base mechanism.
Topics: Anilides; Carbon; Catalysis; Hydrogen; Models, Molecular; Molecular Conformation; Palladium; Quantum Theory; Urea; Water | 2016 |
Influence of cosolvents, self-crowding, temperature and pressure on the sub-nanosecond dynamics and folding stability of lysozyme.
Topics: Hydrogen; Methylamines; Muramidase; Neutron Diffraction; Protein Folding; Temperature; Urea; Water | 2017 |
Synthesis of Layered Carbonitrides from Biotic Molecules for Photoredox Transformations.
Topics: Catalysis; Hydrogen; Magnetic Resonance Spectroscopy; Microscopy, Electron, Scanning; Microscopy, Electron, Transmission; Nitriles; Oxidation-Reduction; Photochemical Processes; Purines; Pyrimidines; Semiconductors; Spectrophotometry, Ultraviolet; Spectroscopy, Fourier Transform Infrared; Urea; X-Ray Diffraction | 2017 |
Overproduction of the cyanobacterial hydrogenase and selection of a mutant thriving on urea, as a possible step towards the future production of hydrogen coupled with water treatment.
Topics: Bacterial Proteins; Hydrogen; Hydrogenase; Mutation; Synechocystis; Urea; Water Purification | 2018 |
Alkali/urea pretreatment of rice straw at low temperature for enhanced biological hydrogen production.
Topics: Alkalies; Hydrogen; Oryza; Temperature; Urea | 2018 |
Nitrate improves ammonia incorporation into rumen microbial protein in lactating dairy cows fed a low-protein diet.
Topics: Ammonia; Animal Feed; Animals; Bacterial Proteins; Cattle; Diet; Diet, Protein-Restricted; Dietary Supplements; Female; Fermentation; Fungal Proteins; Hydrogen; Lactation; Methane; Milk; Nitrates; Pregnancy; Protozoan Proteins; Rumen; Urea | 2018 |
Efforts toward optimization of aerobic biohydrogen reveal details of secondary regulation of biological nitrogen fixation by nitrogenous compounds in Azotobacter vinelandii.
Topics: Ammonium Compounds; Azotobacter vinelandii; Catalytic Domain; Electrons; Hydrogen; Hydrogen-Ion Concentration; Industrial Microbiology; Nitrates; Nitrites; Nitrogen Compounds; Nitrogen Fixation; Nitrogenase; Oxidoreductases; Urea | 2018 |
Persistent homology analysis of osmolyte molecular aggregation and their hydrogen-bonding networks.
Topics: Entropy; Hydrogen; Hydrogen Bonding; Methylamines; Molecular Dynamics Simulation; Protein Aggregation, Pathological; Structural Homology, Protein; Urea | 2019 |
Light
Topics: Carbon; Catalysis; Electrons; Hydrogen; Light; Oxidation-Reduction; Protons; Stereoisomerism; Urea | 2019 |
Efficient electrochemical production of glucaric acid and H
Topics: Biomass; Catalysis; Chlorides; Conservation of Energy Resources; Electrodes; Electrolysis; Ferric Compounds; Glucaric Acid; Glucose; Hydrogen; Hydroxides; Nanostructures; Nickel; Oxidation-Reduction; Urea | 2020 |
Organo-Polyoxometalate-Based Hydrogen-Bond Catalysis.
Topics: Catalysis; Hydrogen; Hydrogen Bonding; Urea; Vanadium | 2021 |
A single methyl group drastically changes urea's hydration dynamics.
Topics: Hydrogen; Hydrogen Bonding; Spectrophotometry, Infrared; Urea; Water | 2022 |
Urea Disrupts the AOT Reverse Micelle Structure at Low Temperatures.
Topics: Hydrogen; Micelles; Surface-Active Agents; Temperature; Urea; Water | 2022 |
Aminocatalysts are More Environmentally Friendly than Hydrogen-Bonding Catalysts.
Topics: Catalysis; Hydrogen; Hydrogen Bonding; Thiourea; Urea | 2022 |
Hydrogen production from urea in human urine using segregated systems.
Topics: Ammonia; Humans; Hydrogen; Urea; Waste Disposal, Fluid; Wastewater | 2022 |
Computing chemical potentials of solutions from structure factors.
Topics: Carbon; Hydrogen; Sodium Chloride; Urea; Water | 2022 |
Nickel-Vanadium-Manganese Trimetallic Nitride as Energy Saving, Efficient Bifunctional Electrocatalyst for Alkaline Water Splitting via Urea Electrocatalysis.
Topics: Hydrogen; Manganese; Nickel; Urea; Vanadium; Water | 2023 |
Heterogeneous Ni-MoN nanosheet-assembled microspheres for urea-assisted hydrogen production.
Topics: Hydrogen; Microspheres; Oxygen; Urea; Water | 2023 |
A novel approach for enhancing nitrogen and hydrogen recovery from urine in microbial electrochemical gas-permeable membrane system.
Topics: Ammonia; Electrodes; Hydrogen; Nitrogen; Urea; Waste Disposal, Fluid | 2023 |
Conformational study into N-alkyl-N'-aryl ureas to inform drug discovery.
Topics: Drug Discovery; Hydrogen; Magnetic Resonance Spectroscopy; Molecular Conformation; Urea | 2023 |