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Photochemical transformation of zearalenone in aqueous solutions under simulated solar irradiation: Kinetics and influence of water constituents
(2017-02-01)
The presence of estrogenic mycotoxins, such as zearalenone (ZEN), in surface waters is an emerging environmental issue. Little is known about its phototransformation behavior, which may influence its environmental fate. ...
Influence of pH on the phototransformation process of PhotogemA (R)
(MAIK NAUKA/INTERPERIODICA/SPRINGER, 2009)
PhotogemA (R) is a hematoporphyrin derivative that has been used as a photosensitizer in experimental and clinical Photodynamic Therapy (PDT) in Brazil. Photosensitizers are degraded under illumination. This process, usually ...
Photoinduced transformation of waste-derived soluble bio-based substances
(Elsevier Science Sa, 2015-04-03)
Waste-derived, soluble bio-based substances (SBO), are effective low-cost photosensitizers that couldfind application in pollutant photodegradation. For this reason, it is important to understand if and towhat extent ...
Sunlight and UVC-254 irradiation induced photodegradation of organophosphorus pesticide dichlorvos in aqueous matrices
(Elsevier, 2019-02-01)
Dichlorvos (DDVP) is an organophosphorus pesticide that has been classified as highly hazardous chemical by the World Health organization. In this study, the fate of the pesticide DDVP in natural water compartments was ...
Phototransformation of hematoporphyrin in aqueous solution: Anomalous behavior at low oxygen concentration
(MAIK NAUKA/INTERPERIODICA/SPRINGER, 2009)
The photoactivation of a photosensitizer is the initial step in photodynamic therapy (PDT) where photochemical reactions result in the production of reactive oxygen species and eventually cell death. In addition to oxidizing ...
Aggregation susceptibility on phototransformation of hematoporphyrin derivatives
(WILEY-V C H VERLAG GMBH, 2008)
Photosensitizers used in PDT suffer degradation by light. In this work, photobleaching of Photogem((R)) (PG), Photofrin((R)) (PF), and Photosan((R)) (PS), hematoporphyrin derivatives, were induced by light in the presence ...
Humic Substances Enhance Chlorothalonil Phototransformation via Photoreduction and Energy Transfer
(ACS PublicationsGrupo de Investigación en Remediación Ambiental y BiocatálisisEstados Unidos, 2020)