Biphasic photolysis of riboflavin. III. Effects of ionic strength on the photolysis

Autor:	Yasuo Suzuki, Hisaaki Chaki, Yukio Sato
Rok vydání:	1984
Předmět:	Circular dichroism Chemistry Hydrogen bond Photodissociation Inorganic chemistry Kinetics General Chemistry General Medicine Buffer solution Buffer (optical fiber) chemistry.chemical_compound Ionic strength Phase (matter) Drug Discovery
Zdroj:	Chemical and Pharmaceutical Bulletin. 32:1232-1235
ISSN:	1347-5223 0009-2363
DOI:	10.1248/cpb.32.1232
Popis:	Riboflavin undergoes a characteristic biphasic photolysis with a low-intensity light source, depending on the ionic strength of the phosphate buffer used. In higher ionic strength phosphate buffer, an initial faster phase is followed by a slower second phase, and vice versa in lower ionic strength buffer. On the basis of the circular dichroism spectra, a side chain-isoalloxazine ring interaction through hydrogen bonding is considered to be responsible for the ionic strength dependence.
Databáze:	OpenAIRE
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