LISTADO DE PUBLICACIONES

Artículos recientes (2010-2016)

“Thymidine radical formation via one-electron transfer oxidation photoinduced by pterin: Mechanism and products characterization”
M. P. Serrano, M. Vignoni, C. Lorente, P. Vicendó, E. Oliveros, A. H. Thomas, Free Rad. Biol. Med. 96, 418, 2016.

“Soybean phosphatidylcholine liposomes as model membranes to study lipid peroxidation photoinduced by pterin”
A.H. Thomas, A. Catalá, M. Vignoni, BBA- Biomembranes,1858 (1), 139, 2016.

 “Histidine oxidation photosensitized by pterin: pH dependent mechanism”
C. Castaño, E. Oliveros, A. H.  Thomas, C. Lorente, J. Photochem. Photobiol. B, 153, 483 (2015).

 “Unraveling the degradation mechanism of purine nucleotides photosensitized by pterins: the role of charge-transfer steps”
M. P. Serrano, C. Lorente, C. D. Borsarelli, A. H. Thomas, Chem phys chem,16 (10), 2244, 2015.

 “Photoinactivation of tyrosinase sensitized by folic acid photoproducts”
M. L. Dántola, B. N. Zurbano, A. H. Thomas, 149, 172, 2015.

 “Photodynamic inactivation induced by carboxypterin: a novel non-toxic bactericidal strategy against planktonic cells and biofilms of Staphylococcus aureus”
A.L. Miñan, C. Lorente, A. Ipiña, A. H. Thomas, M. Fernández Lorenzo, P. L. Schilardi, Biofouling, 31(5), 459, 2015.		  
		  
“Solar radiation exposure of dihydrobiopterin and biopterin in aqueous solution”
A. Ipiña, C. Castaño, M. L. Dántola, A. H. Thomas, Solar Energy, 109, 45, 2014

“Chemical changes in bovine serum albumin photoinduced by pterin”
A. H. Thomas, B. N. Zurbano, C. Lorente, J. Santos, E. A. Roman, M. L. Dántola, J. Photochem. Photobiol. B, 141, 262, 2014

“Selective quenching of triplet excited states of pteridines”
M. P. Denofrio, P. R. Ogilby, A. H. Thomas, C. Lorente, Photochem. Photobiol. Sci., 13, 1058, 2014.		  
		  
“Degradation of a-melanocyte-stimulating hormone photosensitized by pterin”
C. Castaño, C. Lorente, N. Martins-Froment, E. Oliveros, A. H. Thomas, Org. Biomol. Chem., 12, 3877, 2014.

“A non-singlet oxygen mediated reaction photoinduced by phenalenone, a universal reference for singlet oxygen sensitization”
C. Lorente, E. Arzoumanian, C. Castaño, E. Oliveros, A. H. Thomas, RSC Advances 4, 10718, 2014.

“Tryptophan oxidation photosensitized by pterin”
A. H. Thomas, M. P. Serrano, V. Rahal, P. Vicendo, C. Claparols, E. Oliveros, C. Lorente,Free Rad. Biol. Med. 63, 467, 2013

“Type I photosensitization of 2′-deoxyadenosine 5′-monophosphate (5′-dAMP) by biopterin and its photoproduct formylpterin”
M. P. Serrano, C. D. Borsarelli, A. H. Thomas, Photochem. Photobiol. 89, 1456, 2013

“Oxidation of tyrosine photoinduced by pterin in aqueous solution”
C. Castaño, M. L. Dántola, E. Oliveros, A. H. Thomas, C. Lorente, Photochem. Photobiol. 89, 1448, 2013

“Photosensitization of bovine serum albumin by pterin: A mechanistic study”
A. H. Thomas, C. Lorente, K. Roitman, M. M. Morales, M. L. Dántola, J. Photochem. Photobiol B: Biology, 120, 52, 2013

“Chemical and photochemical reactivity of 6-hydroxymethyl-7,8-dihydropterin in aqueous solutions”
A. H. Thomas, E. Oliveros, A. M. Braun, M. S. Espinosa, C. Lorente, M. L. Dántola, J. Phys. Org. Chem. 26, 2, 2013

“Photosensitizing properties of biopterin and its photoproducts using 2’-deoxyguanosine 5’-monophosphate as an oxidizable target”
M. P. Serrano, C. Lorente, F. E. Morán Vieyra, C. D. Borsarelli, A. H. Thomas, Phys. Chem. Chem. Phys. 14, 11657, 2012

“Inactivation of tyrosinase photoinduced by pterin”
M. L. Dántola, A. D. Gojanovich, A. H. Thomas, Biochem. Biophys. Res. Commun. 424, 568, 2012

“Rate constants of quenching of the fluorescence of pterins by the iodide anion in aqueous solution”
S. Swarna, C. Lorente, A. H. Thomas, C. B. Martin, Chem. Phys. Letters, 542, 62, 2012

“Characterization and reactivity of photodimers of dihydroneopterin and dihydrobiopterin”
M. Vignoni, C. Lorente, F. M. Cabrerizo, R. Erra-Balsells, E. Oliveros, A. H. Thomas, Photochem. Photobiol. Sci. DOI: 10.1039/c2pp05363b 

“Mechanism of electron transfer processes photoinduced by lumazine”
M. P. Denofrio, M. Laura Dántola, P. Vicendo, E. Oliveros, A. H. Thomas, C Lorente, Photochem. Photobiol. Sci. 11, 409, 2012.

“Electron Transfer Initiated Reactions Photoinduced by Pterins”
C, Lorente, G. Petroselli, M. L. Dántola, E. Oliveros, A. H. Thomas, Pteridines 22, 111, 2011.

“Photodynamic Effects of Pterin on HeLa Cells”
M. P. Denofrio, C, Lorente, T. Breitenbach, S. Hatz, F. M. Cabrerizo, A. H. Thomas, P. R. Ogilby, Photochem. Photobiol. 87, 862, 2011.

“Emission properties of dihydropterins in aqueous solutions”
M. P. Serrano, M. Vignoni, M. L. Dántola, E. Oliveros, C. Lorente, A. H. Thomas, Phys. Chem. Chem. Phys. 13, 7419, 2011.

“Production and quenching of reactive oxygen species by pterin derivatives, an intriguing class of biomolecules”
E. Oliveros, M. L. Dántola, M. Vignoni, A. H. Thomas, C. Lorente, Pure Appl. Chem. 83, 801, 2011.

“Photodimerization of 7,8-dihydroneopterin in aqueous solution under UV-A irradiation”
M. Vignoni, M. P. Serrano, E. Oliveros, A. H. Thomas, Photochem. Photobiol. 87, 51, 2011.	

“1H NMR characterization of the intermediate formed upon UV-A excitation of biopterin, neopterin and 6-hydroxymethylpterin
 in O2-free aqueous solutions”
M. Vignoni, M. L. Salum, R. Erra-Balsells, A. H. Thomas, F. M. Cabrerizo, Chem. Phys. Lett. 484, 330, 2010.

“Oxidation of 2′-Deoxyadenosine 5′-Monophosphate Photoinduced by Lumazine”
M. P. Denofrio, A. H. Thomas, C. Lorente, J. Phys. Chem. A 114, 10944, 2010.

“Visible-light photochemistry of 6-formyl-7,8-dihydropterin in aqueous solution”
M. L. Dántola, A. H. Thomas, E. Oliveros, C. Lorente, J. Photochem. Photobiol. A: Chem 209, 104, 2010.

“Photochemistry of dihydrobiopterin in aqueous solution”
M. Vignoni, F. M. Cabrerizo, C. Lorente, C. Claparols, E. Oliveros, A. H. Thomas, Org. Biomol. Chem. 8, 800, 2010.

“Mechanism of photooxidation of folic acid sensitized by unconjugated pterins”
M. L. Dántola, M. P. Denofrio, B. Zurbano, C. S. Gimenez, P. R. Ogilby, C. Lorente, A. H. Thomas, Photochem. Photobiol. Sci. 9, 1604, 2010.

“Comment on “Excited-State Intermolecular Proton Transfer of Lumazine”
M. P. Denofrio, A. H. Thomas, A. M. Braun, E. Oliveros, C. Lorente, J. Phys. Chem. C 114, 14307, 2010.

“Electron-transfer processes induced by the triplet state of pterins in aqueous solutions”
M. L. Dántola, M. Vignoni, C. González, C. Lorente, P. Vicendo, E. Oliveros, A. H. Thomas, Free Rad. Biol. Med. 49, 1014, 2010.

Artículos (2000-2009)

“Study of the photosensitizing activity of lumazine using 2´-deoxyguanosine 5´-monophosphate and HeLa cells as targets”
M. P. Denofrio, S. Hatz, C. Lorente, F. M. Cabrerizo, P. R. Ogilby, A. H. Thomas, Photochem. Photobiol. Sci. 8, 1539, 2009.

“Predictive modeling of the total deactivation rate constant of singlet oxygen by heterocyclic compounds”
A. G. Mercader, P. R. Duchowicz, F. M. Fernández, E. A. Castro, F. M. Cabrerizo, A. H. Thomas, J. Mol. Grap. Model. 28, 12, 2009.

"Quenching of the fluorescence of aromatic pterins by deoxynucleotides"
G. Petroselli, M. L. Dántola, F. M. Cabrerizo, C. Lorente, A. M. Braun, E. Oliveros, A. H. Thomas, J. Phys. Chem. A 113, 1794, 2009.

“New results on the photochemistry of biopterin and neopterin”
M. Vignoni, F. M. Cabrerizo, C. Lorente, A. H. Thomas, Photochem. Photobiol. 85, 365, 2009.

“Photochemical and photophysical properties of lumazine in aqueous solutions”. 
M. P. Denofrio, A. H. Thomas, A. M. Braun, E. Oliveros, C. Lorente. J. Photochem. Photobiol. A: Chem. 200, 282, 2008.

“Reaction between 7,8-dihydropterins and hydrogen peroxide under physiological conditions”
M. L. Dántola, Tobias M. Schuler, M. P. Denofrio, M. Vignoni, A. L. Capparelli, C. Lorente, A. H. Thomas, Tetrahedron 64, 8692, 2008.

“Stability of 7,8-dihydropterins in air-equilibrated aqueous solutions”
M. L. Dántola, M. Vignoni, A. L. Capparelli, C. Lorente, A. H. Thomas, Helv. Chim. Acta 91, 411, 2008.

“Oxidation of 2'-deoxyguanosine-5'-monophosphate photoinduced by pterin: Type I versus Type II mechanism”
G. Petroselli, M. L. Dántola, F. M. Cabrerizo, A. L. Capparelli, C. Lorente, E. Oliveros, A. H. Thomas,
 J. Am. Chem. Society, 130, 3001, 2008.

“Photosensitization of 2'-deoxyadenosine-5'-monophosphate by pterin”
G. Petroselli, M. L. Dántola, R. Erra-Balsells, F. M. Cabrerizo, C. Lorente, A. M. Braun, E. Oliveros, A. H. Thomas,
 Org. Biomol. Chem. 5, 2792 , 2007.

“Singlet oxygen (O2(1Δg)) quenching by dihydropterins”
M. L. Dántola, A. H. Thomas, A. M. Braun, E. Oliveros, C. Lorente, J. Phys. Chem. A 111, 4280, 2007.

“Reactivity of Conjugated and Unconjugated Pterins with Singlet Oxygen (O2(1Δg)): Physical Quenching and Chemical Reaction”
F. M. Cabrerizo, M. L. Dántola, G. Petroselli, A. L. Capparelli, A. H. Thomas, A. M. Braun, C. Lorente, E. Oliveros, Photochem. 
Photobiol. 83, 526, 2007.

“Photophysics and photochemistry of pterins in aqueous solution”
C. Lorente, A. H. Thomas, Acc. Chem. Res. 39, 395, 2006.

“Photoinduced generation of H2O2 and O2•‾ by 6-formylpterin in aqueous solutions”
G. Petroselli, J. M. Bartsch, A. H. Thomas, Pteridines 17, 82, 2006.

“Substituent effects on the photophysical properties of pterin derivatives in acidic and alkaline aqueous solutions”
F. M. Cabrerizo, G. Petroselli, C. Lorente, A. L. Capparelli, A. H. Thomas, A. M. Braun, E. Oliveros, Photochem. Photobiol. 81, 1234, 2005.

“Photochemical behaviour of 6-methylpterin in Aqueous Solutions: Generation of Reactive Oxygen Species”
F. M. Cabrerizo, C. Lorente, M. Vignoni, R. Cabrerizo, A. H. Thomas, A. L. Capparelli, Photochem. Photobiol. 81, 793, 2005.

"Photochemistry of Pterin in Acid and Alkaline Aqueous Solution"
F. M. Cabrerizo, M. L. Dántola, A. H. Thomas, C. Lorente, A. M. Braun, E. Oliveros, A. L. Capparelli, Chem. Biodiv. 1, 1800, 2004.

“Generation of reactive oxygen species during the photolysis of 6-hydroxymethylpterin in alkaline aqueous solutions”
F. M. Cabrerizo, A. H. Thomas, C. Lorente, M. L. Dántola, G. Petroselli, R. Erra-Balsells, A. L. Capparelli, Helv. Chim. Acta 87, 349, 2004.

Quenching of the fluorescence of pterin derivatives by anions”
C. Lorente, A. L. Capparelli, A. H. Thomas, A. M. Braun, E. Oliveros, Photochem. Photobiol. Sci. 3, 167, 2004.

“Singlet oxygen (1g) production by pterin derivatives in alkaline aqueous solutions”
C. Lorente, A. H. Thomas, A. L. Capparelli, C. G. Martínez, A. M. Braun, E. Oliveros, Photochem. Photobiol. Sci. 2, 245, 2003.

“Fluorescence of pterin, 6-formylpterin, 6-carboxypterin and folic acid in aqueous solutions: pH effects”
A. H. Thomas, C. Lorente, A. L. Capparelli, M. R. Pokhrel, A. M. Braun, E. Oliveros, Photochem. Photobiol. Sci. 1, 421, 2002.

 “Photochemical behavior of folic acid in alkaline aqueous solutions and evolution of its photoproducts”
A. H. Thomas, G. Suárez, F. M. Cabrerizo, F. S. García Einschlag, R. Martino, C. Baiocchi, 
E. Pramauro, A. L. Capparelli, Helv. Chim. Acta 85, 2300, 2002.

“Photochemistry of 6-formylpterin in alkaline medium”
A. H. Thomas, G. Suárez, F. M. Cabrerizo, A. L. Capparelli, Helv. Chim. Acta 84, 3849, 2001.

“Photoinduced cleavage of plasmid DNA in presence of pterin”
C. Lorente, A. H. Thomas, L. S. Villata, D. Hozbor, A. Lagares, A. L. Capparelli, Pteridines 11, 100, 2000.

“Study of the photolysis of 6-carboxypterin in acid and alkaline aqueous solutions”
G. Suárez, F. M. Cabrerizo, C. Lorente, A. H. Thomas, A. L. Capparelli, J. Photochem. Photobiol. A: Chem. 132, 53, 2000.

“Study of the photolysis of folic acid and 6-formylpterin in acid aqueous solutions”
A. H. Thomas, G. Suárez, F. M. Cabrerizo, R. Martino, A. L. Capparelli, J. Photochem. Photobiol. A: Chem. 135, 147, 2000.

Tesis Doctorales

		  
“Oxidación fotosensibilizada por pterina de nucleótidos purínicos en solución acuosa”
Gabriela Petroselli, 2008.

“Reactividad Térmica y Fotoquímica de 7,8-dihidropterinas frente a Especies Oxidantes en condiciones Fisiológicas”
M. Laura Dántola, 2008.

“Propiedades fotosensibilizadorasde lumazina: Oxidaciones fotoinducidas y efectos fotodinámicos sobre células Hela”
M. Paula Denofrio, 2011.

“Propiedades fotoquímicas de biopterina, neopterina y sus correspondientes dihidroderivados en solución acuosa bajo irradiación UV-A”
Mariana Vignoni, 2011.

“Mecanismos de oxidaciones fotosensibilizadas de nucleótidos púricos y pirimidínicos por pterinas de interés biomédico”
Mariana Paula Serrano, 2014

Trabajos Finales

“Inactivación de Tirosinasa fotoinducida por pterina”
Aldana Gojanovich

“Daño fotoinducido a albúmina de suero humano por pterina”
Lara Olivia Reid, 2014

CONICET INIFTA UNLP ANPCyT GRUPO ARGENTINO DE FOTOBIOLOGIA