Zobrazeno 1 - 10 of 39 pro vyhledávání: '"Mariana Vignoni"'
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Akademický článek
A model to understand type I oxidations of biomolecules photosensitized by pterins
Autor: Carolina Lorente, Mariana P. Serrano, Mariana Vignoni, M. Laura Dántola, Andrés H. Thomas
Publikováno v: Journal of Photochemistry and Photobiology, Vol 7, Iss , Pp 100045- (2021)
Photosensitized oxidations, in part responsible for the harmful effect of UV and visible radiation on biological systems, can take place through type I (generation of radicals) and type II (singlet oxygen) mechanisms. Pterins are heterocyclic compoun
Externí odkaz: https://doaj.org/article/23db8daef2e542cba2ba2879fc4ec7d3
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4
Synthesis, Characterization, and Photocleavage of Bis-Decyl Pteroic Acid: A Folate Derivative with Affinity to Biomembranes
Autor: José Luis Fonseca, María José Sosa, Gabriela Petroselli, Rosa Erra‐Balsells, Matías I. Quindt, Sergio M. Bonesi, Alexander Greer, Edyta M. Greer, Andrés H. Thomas, Mariana Vignoni
Publikováno v: Photochemistry and photobiology.
Here, we provide mechanistic insight to the photocleavage of a compound in the folate family, namely pteroic acid. A bis-decyl chain derivative of pteroic acid was synthesized, structurally characterized, and photochemically investigated. We showed t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18bfe72e00c85ddae895c8e96acc19b4
https://pubmed.ncbi.nlm.nih.gov/36478217
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5
A model to understand type I oxidations of biomolecules photosensitized by pterins
Autor: Mariana Paula Serrano, M. Laura Dántola, Carolina Lorente, Andrés H. Thomas, Mariana Vignoni
Publikováno v: Journal of Photochemistry and Photobiology, Vol 7, Iss, Pp 100045-(2021)
Photosensitized oxidations, in part responsible for the harmful effect of UV and visible radiation on biological systems, can take place through type I (generation of radicals) and type II (singlet oxygen) mechanisms. Pterins are heterocyclic compoun
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21f81899636f0414a1827f89e2d97c91
http://www.sciencedirect.com/science/article/pii/S2666469021000300
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6
Immobilization of alkyl-pterin photosensitizer on silicon surfaces through in situ S
Autor: María Noel, Urrutia, María José, Sosa, Diego E, Pissinis, Antonela, Cánneva, Alejandro G, Miñán, Mariana, Vignoni, Alejandra, Calvo, Andrés H, Thomas, Patricia L, Schilardi
Publikováno v: Colloids and surfaces. B, Biointerfaces. 198
The tuning of surface properties through functionalization is an important field of research with a broad spectrum of applications. Self-assembled monolayers (SAMs) allow the surface tailoring through the adsorption of molecular layers having the app
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::e3e0c0ad59d9ec0a3929254a6682e57c
https://pubmed.ncbi.nlm.nih.gov/33246776
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7
Mono- and Bis-Alkylated Lumazine Sensitizers: Synthetic, Molecular Orbital Theory, Nucleophilic Index and Photochemical Studies
Autor: Dobrushe Denburg, Alexander Greer, Edyta M. Greer, María José Sosa, Mariana Vignoni, María Noel Urrutia, Sergio M. Bonesi, Patricia Laura Schilardi, Matías Iván Quindt, Andrés H. Thomas
Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Mono- and bis-decylated lumazines have been synthesized and characterized. Namely, mono-decyl chain [1-decylpteridine-2,4(1,3H)-dione] 6a and bis-decyl chain [1,3-didecylpteridine-2,4(1,3H)-dione] 7a conjugates were synthesized by nucleophilic substi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::567795f3b4692683d9ae9d46665b1eb6
https://pubmed.ncbi.nlm.nih.gov/32628299
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8
Photo-Oxidation of Unilamellar Vesicles by a Lipophilic Pterin: Deciphering Biomembrane Photodamage
Autor: María Noel Urrutia, Ana Reis, Andrés H. Thomas, Mariana Vignoni, Mauricio S. Baptista, Alexander Greer, Rosangela Itri, Helena Couto Junqueira
Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Pterins are natural products that can photosensitize the oxidation of DNA, proteins, and phospholipids. Recently, a new series of decyl-chain (i.e., lipophilic) pterins were synthesized and their photophysical properties were investigated. These decy
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0e0c22ef0abc34def8d8dbdade719eb
https://doi.org/10.1021/acs.langmuir.8b03302
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9
S,S-Chiral Linker Induced U Shape with a Syn-facial Sensitizer and Photocleavable Ethene Group
Autor: Alexander Greer, Edyta M. Greer, Goutam Ghosh, Niluksha Walalawela, Andrés H. Thomas, Mariana Vignoni, Callistus Chiemezie, Sarah J. Belh, Ashwini A. Ghogare, Sherri A. McFarland
Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
There is a major need for light-activated materials for the release of sensitizers and drugs. Considering the success of chiral columns for the separation of enantiomer drugs, we synthesized an S,S-chiral linker system covalently attached to silica w
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e9f70c53ea12997972793049c3abcc3
https://doi.org/10.1111/php.13000
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10
Kinetic Control in the Regioselective Alkylation of Pterin Sensitizers: A Synthetic, Photochemical, and Theoretical Study
Autor: Niluksha Walalawela, Mariana Vignoni, María Noel Urrutia, Edyta M. Greer, Alexander Greer, Andrés H. Thomas, Sarah J. Belh
Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Alkylation patterns and excited-state properties of pterins were examined both experimentally and theoretically. 2D NMR spectroscopy was used to characterize the pterin derivatives, revealing undoubtedly that the decyl chains were coupled to either t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7df8cd0a238477f0255766bdf3ebeb16
https://doi.org/10.1111/php.12905
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