Photoinactivation
Mostrando 1-12 de 42 artigos, teses e dissertações.
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1. In Vitro antimicrobial photoinactivation with methylene blue in different microorganisms
AIM: To evaluate the in vitro antimicrobial effects of photodynamic therapy (PDT). METHODS: The microorganism indicators were: Candida albicans, Pseudomonas aeruginosa,Enterococcus faecalis and Staphylococcus aureus. A microbial pool was prepared (10 8 cells/mL), from which aliquots were transferred to culture plates for carrying out the PDT using methy
Braz. J. Oral Sci.. Publicado em: 2014-03
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2. Viral inactivation in hemotherapy: systematic review on inactivators with action on nucleic acids
The aim of this study was to conduct a systematic review on the photoinactivators used in hemotherapy, with action on viral genomes. The SciELO, Science Direct, PubMed and Lilacs databases were searched for articles. The inclusion criterion was that these should be articles on inactivators with action on genetic material that had been published between 2000
Revista Brasileira de Hematologia e Hemoterapia. Publicado em: 2012
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3. A comparative study of irradiation systems for photoinactivation of microorganisms
Estudou-se a construção de sistemas de LED aplicados a processos de fotosensitização. Visando à obtenção de dispositivos mais eficientes avaliou-se a aplicação de LED de alta potência (HPLED), que apresenta maior fluxo fotônico, tendendo a excitar uma maior fração de moléculas. Foram descritos detalhes de construção de 3 diferentes sistemas d
Journal of the Brazilian Chemical Society. Publicado em: 2010
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4. Desenvolvimento de dispositivos de irradiação utilizando LED e sua aplicação à fotoinativação de Staphylococcus aureus E Trichophyton rubrum
Estudou-se o desenvolvimento e a eficiência de fontes de irradiação baseada em LED na fotosensitização do azul de metileno. Os equipamentos construídos utilizaram LED convencional e LED de alta potência. Verificou-se que o sistema que utiliza LED de alta potência exibe melhores resultados em função de sua maior irradiância. Na Inativação fotodin
Publicado em: 2010
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5. Antenna Size Dependency of Photoinactivation of Photosystem II in Light-Acclimated Pea Leaves.
Utilization of absorbed light energy by photosystem (PS) II for O2 evolution depends on the light-harvesting antenna size, but the role of antenna size in the photoinactivation of PSII seems controversial. To address this controversy, pea (Pisum sativum L.) plants were grown in low (50 [mu]mol m-2 s-1) or high (650 [mu]mol m-2 s-1) light. The doubled functio
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6. Photoinactivation of Venezuelan Equine Encephalitis Virus Mediated by Tetracyclines
Demethylchlortetracycline and, to a lesser extent, chlortetracycline were found to mediate the in vitro photoinactivation of Venezuelan equine encephalitis virus.
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7. Comparison of the treatment of herpes genitalis in men with proflavine photoinactivation, idoxuridine ointment, and normal saline.
36 male patients with genital infection by HSV confirmed by culture were each allocated to one of three treatment groups: (1) Proflavine photoinactivation, (2) 0.5 per cent. idoxuridine ointment (IDU), (3) Normal saline. They were assessed objectively at each attendance by measurement of the lesions with an operating microscope fitted with a measuring grid i
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8. Photoinactivation of Ammonia Oxidation in Nitrosomonas
Photoinactivation of ammonia oxidation in cells of Nitrosomonas was shown to follow first-order kinetics with a rate constant proportional to incident light intensity. The action spectrum for photoinactivation consisted of a broad peak in the ultraviolet range, where both hydroxylamine and ammonia oxidation were affected, and a shoulder at approximately 410
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9. Photoinactivation of Ichthyrotoxin from Axenic Cultures of Prymnesium parvum Carter
The ichthyotoxin of Prymnesium parvum is inactivated by visible (400 to 510 mμ) as well as by ultraviolet light (255 mμ). The changes in the absorption spectrum of purified (pigment-free) ichthyotoxin during this process indicate that different mechanisms may be involved in the inactivation by visible or ultraviolet light. Photoinactivation is not affected
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10. THE PHOTOINACTIVATION OF ENZYMES BY RIBOFLAVIN
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11. Action Spectra of Photomorphogenic Induction and Its Photoinactivation. 123
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12. PHOTOINACTIVATION AND PHOTOREACTIVATION OF CONSTITUTIVE AND ADAPTIVE RESPIRATORY SYSTEMS OF AZOTOBACTER