期刊
INTERNATIONAL JOURNAL OF ANTIMICROBIAL AGENTS
卷 16, 期 4, 页码 381-394出版社
ELSEVIER
DOI: 10.1016/S0924-8579(00)00207-7
关键词
methylene blue; antimicrobial agents; pathogens; blood
Photodynamic antimicrobial agents based on the well-established phenothiazinium biological stain methylene blue offer a simple method for the inactivation or destruction of pathogens contained in donated blood and blood products. The technique is currently concentrated on viruses and the disinfective procedure can be carried out in blood bags using basic low-power light sources. Pathogens of the bacterial, yeast and protozoal classes are also susceptible to phenothiaziniums. The photoantimicrobial mode of action is usually via oxidative damage to cellular components, either due to redox reactions between the agent and a biomolecular target or by the action of reactive oxygen species generated in situ by photodynamic action. The targeting of various microbial species is discussed in relation to the physicochemical make-up of the photosensitizers, and future directions are suggested. (C) 2000 Elsevier Science B.V. and International Society of Chemotherapy. All rights reserved.
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