tryptophan and singlet oxygen

tryptophan has been researched along with singlet oxygen in 42 studies

Research

Studies (42)

Timeframe	Studies, this research(%)	All Research%
pre-1990	2 (4.76)	18.7374
1990's	6 (14.29)	18.2507
2000's	10 (23.81)	29.6817
2010's	20 (47.62)	24.3611
2020's	4 (9.52)	2.80

Authors

Authors	Studies
Gulliya, KS; Harriman, A; Pervaiz, S	1
Babu, V; Joshi, PC	1
Antosiewicz, J; Bertoli, E; Tanfani, F; Wozniak, M; Zolese, G	1
Ali, H; Brasseur, N; Langlois, R; van Lier, JE; Wagner, JR	1
Caristan, A; Fornier de Violet, P; Veyret, B; Vincendeau, P	1
Kou, F; Takahama, U	1
Charlesworth, P; Dubbelman, TM; Lagerberg, JW; Schneckenburger, H; Truscott, TG; Van der Zee, J; Vanderwal, J	1
Bertoloni, G; Jori, G; Polo, L; Presti, F; Schindl, A; Schindl, L	1
Bartosz, G; Grzelak, A; Rychlik, B	1
Eschenmoser, A; Goddard , WA; Janda, KD; Jones, LH; Larsen, NA; Lerner, RA; Wentworth , P; Wentworth, AD; Wilson, IA; Xu, X; Zhu, X	1
Briganti, S; Camera, E; Cario-André, M; Flori, E; Maresca, V; Picardo, M; Taïeb, A	1
Bisby, RH; Crisostomo, AG; Moreno, RB; Navaratnam, S; Wilkinson, JA	1
Di Mascio, P; Medeiros, MH; Miyamoto, S; Oliveira, MC; Ronsein, GE	1
Bose, B; Dube, A	1
Boreen, AL; Cotner, JB; Edhlund, BL; McNeill, K	1
Min, DB; Yettella, RR	1
Iesce, MI; Lhiaubet-Vallet, V; Miranda, MA; Montanaro, S; Previtera, L	1
Davies, MJ; Gracanin, M; Hawkins, CL; Pattison, DI	1
Chen, Y; Fang, Y; Liu, F; Liu, J	2
Albuquerque-Filho, FB; de Souza, JR; de-Melo, MA; Guedes, SF; Nogueira, NA; Rodrigues, LK; Rolim, JP; Zanin, IC	1
Arnbjerg, J; Jensen, RL; Ogilby, PR	1
Ashani, Y; Deterding, LJ; Ehrenshaft, M; Mason, RP; Roth, E; Silman, I; Triquigneaux, MM; Weiner, L	1
Bracchitta, G; Catalfo, A; De Guidi, G	1
Hosken, B; Lau, K; Lentz, Y; Li, C; Macchi, F; Schöneich, C; Shen, A; Sreedhara, A; Steinmann, D; Zhan, D	1
Claparols, C; Lorente, C; Oliveros, E; Rahal, V; Serrano, MP; Thomas, AH; Vicendo, P	1
Deb-Choudhury, S; Dyer, JM; Grosvenor, AJ; Plowman, JE	1
Challier, C; García, NA; Gatica, E; Massad, W; Miskoski, S; Natera, J; Pajares, A; Possetto, D	1
Ferrari, GV; García, NA; Gutiérrez, EL; Massad, W; Miskoski, S; Muñoz, V; Natera, J; Paulina Montaña, M	1
Borghi-Pangoni, FB; Bruschi, ML; Ferreira, SB; Hioka, N; Junqueira, MV; Rabello, BR	1
Abatedaga, I; Borsarelli, CD; Giménez, RE; Katz, NE; Mecchia Ortiz, JH; Morán Vieyra, FE; Ostatná, V; Paz Zanini, VI; Rey, V; Turbay, MB; Vargová, V	1
De Carvalho Bertozo, L; De Souza, AR; Morgon, NH; Ximenes, VF	1
Batlle, A; Casas, A; Di Venosa, G; Mamone, L; Sáenz, D	1
Davies, MJ; Hägglund, P; Leinisch, F; Lopez-Alarcon, C; Mariotti, M; Rykaer, M	1
Sherin, PS; Sormacheva, ED; Tsentalovich, YP	1
Fuse, S; Nakamura, H; Okazaki, S; Sato, S; Takizawa, M	1
Ayer, A; Baell, JB; Chadha, P; Di Mascio, P; Dunn, LL; Eaton, P; Giltrap, AM; Maghzal, GJ; Nguyen, N; Odiba, JO; Payne, RJ; Prado, FM; Prysyazhna, O; Scotcher, J; Shengule, S; Stanley, CP; Stasch, JP; Stocker, R; Suarna, C; Talib, J; Wang, Y; Wolhuter, K; Yamamoto, Y	1
Casadey, R; Challier, C; Criado, S; Senz, A	1
Bellmaine, S; Schnellbaecher, A; Zimmer, A	1
Egli, CM; Janssen, EML; Stravs, MA	1
Greer, A; O'Connor, RM	1
Bekeschus, S; Clemen, R; Delcea, M; Martens, U; Memari, S; Nasri, Z; von Woedtke, T; Weltmann, KD; Wende, K; Wenske, S	1

Reviews

1 review(s) available for tryptophan and singlet oxygen

Article	Year
Reactivity and degradation products of tryptophan in solution and proteins. Free radical biology & medicine, 2020, 11-20, Volume: 160 Topics: Animals; Humans; Hydroxyl Radical; Oxidation-Reduction; Reactive Oxygen Species; Singlet Oxygen; Tryptophan	2020

Other Studies

41 other study(ies) available for tryptophan and singlet oxygen

Article	Year
Protein damage by photoproducts of merocyanine 540. Free radical biology & medicine, 1992, Volume: 12, Issue:5 Topics: Amino Acids; Energy Transfer; Fluorescent Dyes; Hydrogen Peroxide; Hydrolysis; Hydroxides; Hydroxyl Radical; Light; Oxidation-Reduction; Oxygen; Peptide Fragments; Photochemistry; Protein Denaturation; Pyrimidinones; Serum Albumin, Bovine; Singlet Oxygen; Spectrometry, Fluorescence; Superoxides; Tryptophan	1992
Tryptophan as an endogenous photosensitizer to elicit harmful effects of ultraviolet B. Indian journal of biochemistry & biophysics, 1992, Volume: 29, Issue:3 Topics: Dihydroxyphenylalanine; Dose-Response Relationship, Radiation; Indolequinones; Indoles; Monophenol Monooxygenase; Oxygen; Photochemistry; Quinones; Radiation-Sensitizing Agents; Singlet Oxygen; Superoxides; Tryptophan; Ultraviolet Rays	1992
A new fluorescence method to detect singlet oxygen inside phospholipid model membranes. Biochimica et biophysica acta, 1991, Feb-26, Volume: 1082, Issue:1 Topics: 1,2-Dipalmitoylphosphatidylcholine; Azides; Benzofurans; Fluorescent Dyes; Hydrogen Peroxide; Hypochlorous Acid; Liposomes; Membrane Fluidity; Oxygen; Singlet Oxygen; Sodium Azide; Spectrometry, Fluorescence; Tryptophan	1991
Biological activities of phthalocyanines--VI. Photooxidation of L-tryptophan by selectively sulfonated gallium phthalocyanines: singlet oxygen yields and effect of aggregation. Photochemistry and photobiology, 1987, Volume: 45, Issue:5 Topics: Gallium; Indoles; Light; Organometallic Compounds; Oxygen; Singlet Oxygen; Tryptophan	1987
Chemiluminescence induced by oxidation of tryptophan by singlet oxygen and by hypochlorous acid. Implications in the luminescence emitted in phagocytosis. Photochemistry and photobiology, 1984, Volume: 39, Issue:5 Topics: Humans; Hypochlorous Acid; Luminescence; Models, Biological; Neutrophils; Oxygen; Phagocytosis; Photochemistry; Singlet Oxygen; Tryptophan	1984
Hydrogen peroxide-induced luminescence and evolution of molecular oxygen in human saliva. Archives of oral biology, 1995, Volume: 40, Issue:1 Topics: Azides; Cyanides; Deuterium Oxide; Humans; Hydrogen Peroxide; Luminescent Measurements; Oxygen; Peroxidase; Piperazines; Saliva; Salivary Proteins and Peptides; Singlet Oxygen; Thiocyanates; Tryptophan	1995
Influence of rhodamine 123 on the photosensitizing properties of porphyrins. Free radical biology & medicine, 1996, Volume: 21, Issue:2 Topics: Cations; Electron Spin Resonance Spectroscopy; Free Radicals; Histidine; Light; Methionine; Oxygen; Photochemistry; Photosensitizing Agents; Porphyrins; Rhodamine 123; Rhodamines; Singlet Oxygen; Spectrometry, Fluorescence; Spectrophotometry; Tryptophan; Tyrosine	1996
Role of ground and excited singlet state oxygen in the red light-induced stimulation of Escherichia coli cell growth. Biochemical and biophysical research communications, 1999, Apr-21, Volume: 257, Issue:3 Topics: Azides; Deuterium Oxide; Escherichia coli; Histidine; Lasers; Light; NAD; NADH Dehydrogenase; Oxygen; Photobiology; Singlet Oxygen; Time Factors; Tryptophan; Water	1999
Light-dependent generation of reactive oxygen species in cell culture media. Free radical biology & medicine, 2001, Jun-15, Volume: 30, Issue:12 Topics: Azides; Culture Media; Cyclic N-Oxides; Electron Spin Resonance Spectroscopy; Fluoresceins; Fluorescent Dyes; Folic Acid; Hydrolysis; Hydroxyl Radical; Light; Oxidation-Reduction; Oxygen; Phenolsulfonphthalein; Photochemistry; Piperazines; Pyridoxine; Reactive Oxygen Species; Rhodamines; Riboflavin; Singlet Oxygen; Spin Labels; Superoxides; Tryptophan; Tyrosine	2001
Antibody catalysis of the oxidation of water. Science (New York, N.Y.), 2001, Sep-07, Volume: 293, Issue:5536 Topics: Animals; Antibodies, Catalytic; Binding Sites; Catalysis; Conserved Sequence; Crystallography, X-Ray; Humans; Hydrogen Peroxide; Kinetics; Models, Molecular; Oxidants; Oxidation-Reduction; Oxygen; Protein Conformation; Singlet Oxygen; Spectrometry, Mass, Electrospray Ionization; Thermodynamics; Tryptophan; Ultraviolet Rays; Water; Xenon	2001
UVA-induced modification of catalase charge properties in the epidermis is correlated with the skin phototype. The Journal of investigative dermatology, 2006, Volume: 126, Issue:1 Topics: Antioxidants; Catalase; Cells, Cultured; Cysteinyldopa; Dihydroxyphenylalanine; Epidermis; Humans; Melanins; Melanocytes; Methionine; Oxidation-Reduction; Photosensitizing Agents; Singlet Oxygen; Skin; Superoxide Dismutase; Tryptophan; Ultraviolet Rays	2006
Generation of superoxide and singlet oxygen from alpha-tocopherolquinone and analogues. Free radical research, 2007, Volume: 41, Issue:6 Topics: Antioxidants; Chromans; Lasers; Oxidation-Reduction; Pulse Radiolysis; Reactive Oxygen Species; Singlet Oxygen; Superoxides; Tryptophan; Vitamin E	2007
Tryptophan oxidation by singlet molecular oxygen [O2(1Deltag)]: mechanistic studies using 18O-labeled hydroperoxides, mass spectrometry, and light emission measurements. Chemical research in toxicology, 2008, Volume: 21, Issue:6 Topics: Chromatography, High Pressure Liquid; Hydrogen Peroxide; Kynurenine; Luminescent Measurements; Molecular Structure; Oxidation-Reduction; Oxygen Isotopes; Photochemistry; Singlet Oxygen; Spectrometry, Mass, Electrospray Ionization; Tandem Mass Spectrometry; Tryptophan	2008
Photodynamic efficacy of chlorin p6: a pH dependent study in aqueous and lipid environment. Journal of photochemistry and photobiology. B, Biology, 2008, Oct-16, Volume: 93, Issue:1 Topics: Hydrogen-Ion Concentration; Kinetics; Light; Lipid Peroxidation; Lipids; Models, Molecular; Molecular Conformation; Nitroso Compounds; Photochemotherapy; Porphyrins; Singlet Oxygen; Tryptophan; Water	2008
Indirect photodegradation of dissolved free amino acids: the contribution of singlet oxygen and the differential reactivity of DOM from various sources. Environmental science & technology, 2008, Aug-01, Volume: 42, Issue:15 Topics: Amino Acids; Benzopyrans; Carbon; Chromatography, High Pressure Liquid; Fresh Water; Histidine; Humic Substances; Hydrogen Peroxide; Kinetics; Methionine; Organic Chemicals; Photolysis; Singlet Oxygen; Tryptophan; Tyrosine	2008
Quenching mechanisms and kinetics of Trolox and ascorbic acid on the riboflavin-photosensitized oxidation of tryptophan and tyrosine. Journal of agricultural and food chemistry, 2008, Nov-26, Volume: 56, Issue:22 Topics: Ascorbic Acid; Chromans; Kinetics; Oxidation-Reduction; Photochemistry; Riboflavin; Singlet Oxygen; Tryptophan; Tyrosine	2008
A mechanistic study on the phototoxicity of atorvastatin: singlet oxygen generation by a phenanthrene-like photoproduct. Chemical research in toxicology, 2009, Volume: 22, Issue:1 Topics: Atorvastatin; Cyclization; Electron Spin Resonance Spectroscopy; Heptanoic Acids; Hydroxymethylglutaryl-CoA Reductase Inhibitors; Phenanthrenes; Pyrroles; Singlet Oxygen; Tryptophan	2009
Singlet-oxygen-mediated amino acid and protein oxidation: formation of tryptophan peroxides and decomposition products. Free radical biology & medicine, 2009, Jul-01, Volume: 47, Issue:1 Topics: Alcohols; Animals; Cattle; Chickens; Electron Spin Resonance Spectroscopy; Free Radicals; Glycine max; Hydrogen Peroxide; Hydrolysis; Kynurenine; Mass Spectrometry; Muramidase; Oxidation-Reduction; Oxidative Stress; Protein Binding; Protein Processing, Post-Translational; Serum Albumin, Bovine; Singlet Oxygen; Soybean Proteins; Tryptophan	2009
Dissociative excitation energy transfer in the reactions of protonated cysteine and tryptophan with electronically excited singlet molecular oxygen (a1Δ(g)). The journal of physical chemistry. B, 2011, Aug-18, Volume: 115, Issue:32 Topics: Cysteine; Electrons; Energy Transfer; Molecular Structure; Protons; Quantum Theory; Singlet Oxygen; Tryptophan	2011
The antimicrobial activity of photodynamic therapy against Streptococcus mutans using different photosensitizers. Journal of photochemistry and photobiology. B, Biology, 2012, Jan-05, Volume: 106 Topics: Anti-Infective Agents; Eosine Yellowish-(YS); Erythrosine; Light; Methylene Blue; Oxidation-Reduction; Photosensitizing Agents; Rosaniline Dyes; Rose Bengal; Singlet Oxygen; Streptococcus mutans; Tolonium Chloride; Tryptophan	2012
Reactions of deprotonated tyrosine and tryptophan with electronically excited singlet molecular oxygen (a1Δ(g)): a guided-ion-beam scattering, statistical modeling, and trajectory study. The journal of physical chemistry. B, 2012, Jun-07, Volume: 116, Issue:22 Topics: Electrons; Ions; Models, Statistical; Protons; Quantum Theory; Singlet Oxygen; Tryptophan; Tyrosine	2012
Reaction of singlet oxygen with tryptophan in proteins: a pronounced effect of the local environment on the reaction rate. Journal of the American Chemical Society, 2012, Jun-13, Volume: 134, Issue:23 Topics: Animals; Asparaginase; Aspergillus oryzae; Bacillus; Bees; Escherichia coli; Melitten; Micrococcal Nuclease; Models, Molecular; Proteins; Ribonuclease T1; Singlet Oxygen; Staphylococcus aureus; Subtilisins; Tryptophan	2012
Targeted oxidation of Torpedo californica acetylcholinesterase by singlet oxygen: identification of N-formylkynurenine tryptophan derivatives within the active-site gorge of its complex with the photosensitizer methylene blue. The Biochemical journal, 2012, Nov-15, Volume: 448, Issue:1 Topics: Acetylcholinesterase; Animals; Binding, Competitive; Catalytic Domain; Cholinesterase Inhibitors; Edrophonium; Electric Organ; Hydrolysis; Kynurenine; Mass Spectrometry; Methylene Blue; Models, Molecular; Oxidation-Reduction; Photochemistry; Photosensitizing Agents; Propidium; Protein Conformation; Singlet Oxygen; Structure-Activity Relationship; Substrate Specificity; Torpedo; Tryptophan; Water	2012
Photoinduced protein modifications by methylene blue and naproxen. Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology, 2012, Volume: 11, Issue:12 Topics: Animals; Cattle; Humans; Methylene Blue; Naproxen; Photolysis; Photosensitizing Agents; Quantum Theory; Serum Albumin; Serum Albumin, Bovine; Singlet Oxygen; Spectrometry, Fluorescence; Tryptophan; Ultraviolet Rays	2012
Role of surface exposed tryptophan as substrate generators for the antibody catalyzed water oxidation pathway. Molecular pharmaceutics, 2013, Jan-07, Volume: 10, Issue:1 Topics: Animals; Antibodies, Catalytic; Antibodies, Monoclonal; CHO Cells; Cricetinae; Hydrogen Peroxide; Light; Models, Molecular; Oxidation-Reduction; Reactive Oxygen Species; Singlet Oxygen; Superoxides; Tryptophan; Water	2013
Tryptophan oxidation photosensitized by pterin. Free radical biology & medicine, 2013, Volume: 63 Topics: Electron Spin Resonance Spectroscopy; Hydrogen Peroxide; Nucleotides; Oxidation-Reduction; Photosensitizing Agents; Pterins; Singlet Oxygen; Tryptophan; Ultraviolet Rays	2013
Protein oxidation: identification and utilisation of molecular markers to differentiate singlet oxygen and hydroxyl radical-mediated oxidative pathways. Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology, 2013, Volume: 12, Issue:11 Topics: Hydroxyl Radical; Oligopeptides; Oxidation-Reduction; Reactive Oxygen Species; Singlet Oxygen; Tryptophan; Tyrosine; Ultraviolet Rays	2013
On the photooxidation of the multifunctional drug niclosamide. A kinetic study in the presence of vitamin B2 and visible light. Redox report : communications in free radical research, 2015, Volume: 20, Issue:6 Topics: Anions; Antioxidants; Kinetics; Lasers; Light; Methanol; Niclosamide; Oxygen; Phenol; Phenols; Photochemical Processes; Photolysis; Photosensitizing Agents; Reactive Oxygen Species; Riboflavin; Singlet Oxygen; Spectrophotometry, Ultraviolet; Superoxides; Tryptophan; Water; Water Pollutants, Chemical	2015
Scavenging of photogenerated ROS by Oxicams. Possible biological and environmental implications. Journal of photochemistry and photobiology. B, Biology, 2015, Volume: 153 Topics: Anti-Inflammatory Agents, Non-Steroidal; Free Radical Scavengers; Light; Meloxicam; Oxidation-Reduction; Photolysis; Piroxicam; Pyridines; Reactive Oxygen Species; Rhodamines; Riboflavin; Singlet Oxygen; Superoxides; Thiazines; Thiazoles; Tryptophan; Tyrosine; Water Pollutants, Chemical	2015
Functional Polymeric Systems as Delivery Vehicles for Methylene Blue in Photodynamic Therapy. Langmuir : the ACS journal of surfaces and colloids, 2016, Jan-12, Volume: 32, Issue:1 Topics: Methylene Blue; Photochemotherapy; Photosensitizing Agents; Polymers; Singlet Oxygen; Tryptophan	2016
Interaction of singlet oxygen with bovine serum albumin and the role of the protein nano-compartmentalization. Free radical biology & medicine, 2016, Volume: 94 Topics: 2,2'-Dipyridyl; Aging; Coordination Complexes; Hydrophobic and Hydrophilic Interactions; Kinetics; Oxidation-Reduction; Oxidative Stress; Protein Binding; Serum Albumin, Bovine; Singlet Oxygen; Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; Tryptophan	2016
Taurine Bromamine: Reactivity of an Endogenous and Exogenous Anti-Inflammatory and Antimicrobial Amino Acid Derivative. Biomolecules, 2016, Apr-21, Volume: 6, Issue:2 Topics: Anti-Infective Agents; Anti-Inflammatory Agents; Humans; Hydrogen-Ion Concentration; Kinetics; Oxidation-Reduction; Serum Albumin; Singlet Oxygen; Taurine; Tryptophan	2016
Methods for the detection of reactive oxygen species employed in the identification of plant photosensitizers. Methods (San Diego, Calif.), 2016, 10-15, Volume: 109 Topics: Oxidation-Reduction; Oxidative Stress; Photosensitizing Agents; Plant Extracts; Reactive Oxygen Species; Singlet Oxygen; Tryptophan	2016
Peroxyl radical- and photo-oxidation of glucose 6-phosphate dehydrogenase generates cross-links and functional changes via oxidation of tyrosine and tryptophan residues. Free radical biology & medicine, 2017, Volume: 112 Topics: Bacterial Proteins; Cross-Linking Reagents; Enzyme Assays; Glucosephosphate Dehydrogenase; Kinetics; Kynurenine; Leuconostoc mesenteroides; Light; Oxidation-Reduction; Peroxides; Photochemical Processes; Protein Aggregates; Singlet Oxygen; Solutions; Tryptophan; Tyrosine	2017
Dimerization and oxidation of tryptophan in UV-A photolysis sensitized by kynurenic acid. Free radical biology & medicine, 2017, Volume: 113 Topics: alpha-Crystallins; Animals; Cattle; Chemical Fractionation; Dimerization; Electron Transport; Kynurenic Acid; Lens, Crystalline; Oxidation-Reduction; Oxygen; Photolysis; Photosensitizing Agents; Singlet Oxygen; Superoxides; Tryptophan; Ultraviolet Rays	2017
Elucidating the mode of action for thiophene-based organic D-π-A sensitizers for use in photodynamic therapy. Bioorganic & medicinal chemistry, 2019, 01-15, Volume: 27, Issue:2 Topics: Antineoplastic Agents; Endocytosis; Fluorescent Dyes; HeLa Cells; Humans; Molecular Structure; Oxidation-Reduction; Photochemotherapy; Photosensitizing Agents; Serum Albumin, Human; Singlet Oxygen; Structure-Activity Relationship; Thiophenes; Tryptophan	2019
Singlet molecular oxygen regulates vascular tone and blood pressure in inflammation. Nature, 2019, Volume: 566, Issue:7745 Topics: Animals; Blood Pressure; Cell Line; Cyclic GMP-Dependent Protein Kinase Type I; Cysteine; Enzyme Activation; Female; Humans; Hydrogen Peroxide; Indoleamine-Pyrrole 2,3,-Dioxygenase; Inflammation; Male; Oxidation-Reduction; Rats; Signal Transduction; Singlet Oxygen; Tryptophan; Vasodilator Agents	2019
Antioxidant ability of tyrosol and derivative-compounds in the presence of O Food chemistry, 2019, Jul-01, Volume: 285 Topics: Antioxidants; Drug Synergism; Food Preservatives; Hydrogen-Ion Concentration; Isomerism; Linoleic Acids; Oxidation-Reduction; Phenylethyl Alcohol; Singlet Oxygen; Tryptophan; Ultraviolet Rays	2019
Inactivation and Site-specific Oxidation of Aquatic Extracellular Bacterial Leucine Aminopeptidase by Singlet Oxygen. Environmental science & technology, 2020, 11-17, Volume: 54, Issue:22 Topics: Amino Acids; Kinetics; Leucyl Aminopeptidase; Oxidation-Reduction; Singlet Oxygen; Tryptophan	2020
How Tryptophan Oxidation Arises by "Dark" Photoreactions from Chemiexcited Triplet Acetone. Photochemistry and photobiology, 2021, Volume: 97, Issue:2 Topics: Acetone; Chromatography, High Pressure Liquid; Horseradish Peroxidase; Oxidation-Reduction; Photochemical Processes; Singlet Oxygen; Tandem Mass Spectrometry; Tryptophan	2021
Singlet-Oxygen-Induced Phospholipase A Chemistry (Weinheim an der Bergstrasse, Germany), 2021, Oct-21, Volume: 27, Issue:59 Topics: Oxygen; Phospholipases A2; Protein Binding; Singlet Oxygen; Tryptophan	2021