Výsledky vyhledávání - "Ana María Edwards"

Riboflavin surface modification of poly(vinyl chloride) for light-triggered control of bacterial biofilm and virus inactivation

Autor: Liane M. Rossi, Lucas L. R. Vono, Cagla Eren Cimenci, Antony El-khoury, Benjamin H. Rotstein, Robert Hunter, Mayte Gonzalez-Gomez, Ana María Edwards, Emilio I. Alarcon, David J. Lomboni, Fabio Variola, Marcelo Muñoz

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Poly(vinyl chloride) (PVC) is the most used biomedical polymer worldwide. PVC is a stable and chemically inert polymer. However, microorganisms can colonize PVC producing biomedical device-associated infections. While surface modifications of PVC can

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::739348cce03f35a021b1593c3f98aa58

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Fatty Acid Conjugates of Toluidine Blue O as Amphiphilic Photosensitizers: Synthesis, Solubility, Photophysics and Photochemical Properties

Autor: José Robinson-Duggon, Germán Günther, Daniel Zúñiga-Núñez, Ana María Edwards, Denis Fuentealba, Nancy Pizarro, Alexander Greer

Publikováno v: Photochemistry and photobiologyReferences. 97(1)

Toluidine blue O (TBO) is a water-soluble photosensitizer that has been used in photodynamic antimicrobial and anticancer treatments, but suffers from limited solubility in hydrophobic media. In an effort to incrementally increase TBO's hydrophobicit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::616e61a8a90b0897f42822f9a75f8373
https://pubmed.ncbi.nlm.nih.gov/32619275

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Silica nanoreactors from silylated riboflavin for efficient singlet oxygen delivery

Autor: Natalia C Angeluzzi, Daniela T. Marquez, Emilio I. Alarcon, Marcelo Muñoz, Ana María Edwards, Mauricio S. Baptista, Juan C. Scaiano

Publikováno v: Journal of materials chemistry. B. 2(27)

Silylation of riboflavin allowed its incorporation into spherical SiO2 nanoparticles that were able to generate singlet oxygen and oxidize human serum albumin while conferring riboflavin remarkable photostability.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::823f3dc6b120558c8aebc4223f3739cf
https://pubmed.ncbi.nlm.nih.gov/32261560

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Mechanism of Visible-Light Photooxidative Demethylation of Toluidine Blue O

Autor: Alexander Greer, Denis Fuentealba, Germán Günther, Ana María Edwards, Nory Mariño-Ocampo, Pablo Barrias, Daniel Zúñiga-Núñez, José Robinson-Duggon

Publikováno v: The journal of physical chemistry. A. 123(23)

Experiments and theoretical calculations by density functional theory (DFT) have been carried out to examine a self-sensitized type I photooxidation of toluidine blue O (TBO+). This study attempts to build a connection between visible-light photolysi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d17e8211b144b02384b8a8f17db9dd09
https://pubmed.ncbi.nlm.nih.gov/31117602

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Photodynamic performance of zinc phthalocyanine in HeLa cells: A comparison between DPCC liposomes and BSA as delivery systems

Autor: Ana María Edwards, Brian McNeill, Emilio I. Alarcon, Hasitha de Alwis Weerasekera, Eduardo Lissi, Angélica M.Garcia, Spencer P. Pitre

Publikováno v: Journal of photochemistry and photobiology. B, Biology. 163

Comparable intracellular concentrations (≈30pmol/10(6) cells) of bovine serum albumin-ZnPc (BSA) adduct outperformed dipalmitoyl-phosphatidyl-choline (DPPC) liposomes containing ZnPc at photodynamic-killing of human cervical cancer cells (HeLa) aft

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f2e881adf7a75cdaf11facd07b51ba6
https://pubmed.ncbi.nlm.nih.gov/27614847

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Photobehavior of merocyanine 540 bound to human serum albumin

Autor: Eduardo Lissi, J. C. Scaiano, Alexis Aspée, Emilio I. Alarcon, Ana María Edwards, María González-Béjar

Publikováno v: PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
Artículos CONICYT
CONICYT Chile
instacron:CONICYT

The photobehavior of merocyanine 540 (MC) was studied in homogeneous media (ethanol, buffer and glycerol), and in microheterogenous systems (Triton X-100 micelles and in the presence of human serum albumin) using stationary and time-resolved techniqu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39f0607adae752906b6ffb6fa32aa6f4
https://doi.org/10.1039/c0pp00079e

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Photophysics and photochemistry of zinc phthalocyanine/bovine serum albumin adducts

Autor: Angélica M. Garcia, Emilio I. Alarcon, Claudio D. Borsarelli, Ana María Edwards, Alexis Aspée, Eduardo Lissi, Marcelo Muñoz

Publikováno v: PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
Artículos CONICYT
CONICYT Chile
instacron:CONICYT

Zinc phthalocyanine (ZnPc) is a well known Type II (singlet oxygen mediated) hydrophobic photosensitizer with potential use in PDT. We have found that the presence of bovine serum albumin diminishes the aggregation degree of ZnPc in aqueous solution,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c9d2a51ab646659c2567a733ec9785e
https://doi.org/10.1039/b815726j

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Antioxidant capacity of herbal infusions and tea extracts: A comparison of ORAC-fluorescein and ORAC-pyrogallol red methodologies

Autor: Eduardo Lissi, Ana María Edwards, Camilo López-Alarcón, Ana Maria Campos, Emilio I. Alarcon

Publikováno v: FOOD CHEMISTRY
Artículos CONICYT
CONICYT Chile
instacron:CONICYT

Oxygen radical absorbance capacity (ORAC) values have been obtained for a series of teas and herbal infusions employing 2,2′-azo-bis(2-amidinopropane) as free radical source, and fluorescein and pyrogallol red as target molecules. The amounts of ph

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5801ad4c0b8f996ab90f113165a752a0
https://doi.org/10.1016/j.foodchem.2007.09.035

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VISIBLE LIGHT ANAEROBIC PHOTOCONVERSION OF TYROSINE SENSITIZED BY RIBOFLAVIN. CYTOTOXICITY ON MOUSE TUMORAL CELLS

Autor: Alfredo E. De Ioannes, M. Ines Becker, Eduardo Silva, Sonia Fürst, Ana María Edwards

Publikováno v: Photochemistry and Photobiology. 62:1041-1045

The anaerobic phototransformation of tyrosine under visible light sensitized by riboflavin is reported. The cytotoxicity of the anaerobic photoproducts on in vitro-cultured myeloid mouse tumoral cells was demonstrated. A radical mechanism is proposed

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b187530d6f5ec5d8d28d027eaf44614
https://doi.org/10.1111/j.1751-1097.1995.tb02406.x

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