Novel cationic Intramolecular Hydrogen Abstraction Photosensitizers (IHA-PS) were synthesized and found to have a pronounced photosensitization effect in cycloaliphatic epoxide based cationic UV curable systems using sulfonium salt photoinitiators. A series of polyol based photosensitizers were synthesized with naphthalene attached. One polyol photosensitizer, P-Na, was found to have a much pro...

Certain synthetic and naturally occurring chemicals, particularly those found in some range plants, may interact with livestock and poultry in the presence of activating light to produce photosensitization. Such photosensitization may have serious implications for livestock producers as a result of causing reduced performance of and even death of affected animals. The mechanisms producing photo...

Photosensitization is a biophysical phenomenon Seeno is a two years old male Hereford cross takes place when skin becomes sensitized to certain cattle weighing 463 kg and deworming status are up to wavelengths of sunlight, particularly within the date was presented to University Veterinary Hospital, ultraviolet range of the spectrum, in the presence Faculty of Veterinary Medicine, Universiti Pu...

leptospirosis is a bacterial zoonotic disease, which can induce hepatic lesions. photosensitization (ps)maybe is the result of accumulation of photodynamic agents in unpigmented area of the skin exposed tosunlight which occurred due to hepatic lesions. an outbreak of leptospirosis was occurred in a dairy cattleherd complex with 760 dairy milking cows in march (1990). totally, 412 cows (54.21%) ...

[structure: see text] A dyad of eosin and tris(2,2'-bipyridine)Ru(II) was prepared, and its photophysical properties were investigated. The photosensitization of eosin is greatly enhanced by introduction of tris(2,2'-bipyridine)Ru(II), which is verified via photooxygenation of anthracene derivatives. The electron-transfer mechanism of photosensitization is also discussed.

As a chemiluminescence (CL) probe, 3,7-dihydro-6-{4-{2-(N 0-(5-fluoresceinyl) thioureido)ethoxy}phenyl}-2-methylimidazo{1,2-a}pyrazin-3-one dosium salt (FCLA) can sensitively and specifically react with singlet oxygen (O2) and superoxide (O2 ). Based on the fact that photosensitization action involves O2 generation, this report presents a novel method for localization of tumor mediated by FCLA....