منابع مشابه
Dye-sensitized photo-oxidation of enzymes.
Heart lipoamide dehydrogenase, liver alcohol dehydrogenase and egg-white lysozyme are photo-oxidized in the presence of various dye sensitizers. The photodynamic process is preceded by the binding between the enzyme and the sensitizers. Among the commonly used dyes, halogenated xanthines and thiazine are effective sensitizers for the photo-inactivation of these three enzymes. Histidine residues...
متن کاملPhoto-oxidation of desaspidin sensitized by chlorophyll.
The uncoupler desaspidin is labile in the presence of oxidants at alkaline pH values. It also undergoes chlorophyll-sensitized photooxidation at a more acid pH. The products of the oxidation appear to have negligible activity in inhibiting electron transfer and photophosphorylation.Failure of desaspidin to uncouple in the presence of oxidants used as cofactors of noncyclic electron flow is pres...
متن کاملBiological activity of the endoperoxides derived from vitamin D derivatives by dye-sensitized photo-oxidation.
Sachiko MORIUCHI,1 Fuklko TSURUKI, Yoko OTAWARA, Norlmasa HOSOYA,z Sachiko YAMADA, Keiko NAKAYAMA, and Hiroaki TAKAYAMA3 1Department of Food and Nutrition , School of Home Economics, Japan Women's University, Mejirodai, Bunkyo-ku, Tokyo 112, Japan 2Department of Nutrition , School of Health Sciences, Faculty of Medicine, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113, Japan 3Faculty of Pharma...
متن کاملHigh photo-currents with a zwitterionic thiocyanate-free dye in aqueous-based dye sensitized solar cells.
We report a new water soluble and stable thiolate/disulfide redox couple (T(-)/DS) and its use with a new zwitterionic and thiocyanate-free dye (T169) in a 100% aqueous electrolyte system. A DSSC incorporating T169 and the T(-)/DS showed the highest photocurrents (Jsc = 13.30 mA cm(-2)) and IPCE% (84%) values reported to date. In addition, a 2000 h long-term stability measurement was performed,...
متن کاملInvestigation the effect of substrate photo-electrode based on screen method on performance of dye-sensitized solar cells
In this paper we studied preparation of working films of dye-sensitized solar cells using screen printed method. The organic dye based on phenoltiazine with cyanoacrylic acid as the electron donor group utilized as photosensitizer. Fluorine-doped thin oxide FTO coated glass is transparent electrically conductive and ideal for use in dye-sensitized solar cells. FTO glass was coated by screen pri...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1985
ISSN: 0264-6021,1470-8728
DOI: 10.1042/bj2250203