CAS OpenIR  > 中科院上海原子核所2003年前
Characterization of transient species in laser photolysis of aromatic amino acids using acetone as photosensitizer
Song, QH; Xu, YP; Yu, SQ; Chen, CX; Ma, XX; Wang, WF(王文锋); Yao, SD(姚思德); Lin, NY(林念芸)
1999
Source PublicationSCIENCE IN CHINA SERIES B-CHEMISTRY
ISSN1006-9291
Volume42Issue:6Pages:561
AbstractThe photochemical processes of aromatic amino acids were investigated in aqueous solution using acetone as photosensitizer by KrF (248 nm) laser flash photolysis. Laser-induced transient species were characterized according to kinetic analysis and quenching experiments. The intermediates recorded were assigned to the excited triplet state of tryptophan, the radicals of tryptophan and tyrosine. The excited triplet state of tryptophan produced via a triplet-triplet excitation transfer and the radicals arising from electron transfer reaction has been identified. Neither electron transfer nor energy transfer between triplet acetone and phenylalanine can occur in photolysis of phenylalanine aqueous solution which contains acetone. Furthermore, triplet acetone-induced radical transformation: Trp/N* -Tyr-->Trp-Tyr/O* was observed directly in photolysis of dipeptide (Trp-Tyr) aqueous solution containing acetone, and the transformation resulting from intramolecular electron transfer was suggested.
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000084653800001
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/9899
Collection中科院上海原子核所2003年前
Recommended Citation
GB/T 7714
Song, QH,Xu, YP,Yu, SQ,et al. Characterization of transient species in laser photolysis of aromatic amino acids using acetone as photosensitizer[J]. SCIENCE IN CHINA SERIES B-CHEMISTRY,1999,42(6):561.
APA Song, QH.,Xu, YP.,Yu, SQ.,Chen, CX.,Ma, XX.,...&Lin, NY.(1999).Characterization of transient species in laser photolysis of aromatic amino acids using acetone as photosensitizer.SCIENCE IN CHINA SERIES B-CHEMISTRY,42(6),561.
MLA Song, QH,et al."Characterization of transient species in laser photolysis of aromatic amino acids using acetone as photosensitizer".SCIENCE IN CHINA SERIES B-CHEMISTRY 42.6(1999):561.
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