Reactions of Triplet-State Difloxacin with Amino Acids and dGMP: A Laser Flash Photolysis Study
Li, HX; Liu, YC; Tang, RZ; Zhang, P; Ma, LK; Wei, CY; Wang, WF
2017
发表期刊ACTA PHYSICO-CHIMICA SINICA
ISSN1000-6818
卷号33期号:5页码:1051-1056
文章类型期刊论文
摘要The reactions of triplet-state difloxacin (DFX) with various amino acids and deoxyguanylic acid in aqueous media were studied using laser flash photolysis. Tryptophan, tyrosine, cysteine, and 2'-deoxyguanosine5'-monophosphate (dGMP) were found to completely quench the triplet state of DFX in aqueous solution, the corresponding second-order rate constants being 1.97 x 10(8), 1.48 x 10(8), 1.72 x 10(8), and 6.92 x 10(7) dm(3).mol(-l).s(-1) . The quenching mechanism involves electron transfer to the photoexcited triplet state of DFX from the tryptophan, tyrosine, cysteine, and dGMP moieties, followed by fast protonation of the resulting DFX anion radical.
关键词Laser Flash Photolysis Difloxacin Triplet State Amino Acid
DOI10.3866/PKU.WHXB201702201
收录类别SCI
语种英语
WOS记录号WOS:000401878800027
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/27431
专题中科院上海应用物理研究所2011-2018年
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Li, HX,Liu, YC,Tang, RZ,et al. Reactions of Triplet-State Difloxacin with Amino Acids and dGMP: A Laser Flash Photolysis Study[J]. ACTA PHYSICO-CHIMICA SINICA,2017,33(5):1051-1056.
APA Li, HX.,Liu, YC.,Tang, RZ.,Zhang, P.,Ma, LK.,...&Wang, WF.(2017).Reactions of Triplet-State Difloxacin with Amino Acids and dGMP: A Laser Flash Photolysis Study.ACTA PHYSICO-CHIMICA SINICA,33(5),1051-1056.
MLA Li, HX,et al."Reactions of Triplet-State Difloxacin with Amino Acids and dGMP: A Laser Flash Photolysis Study".ACTA PHYSICO-CHIMICA SINICA 33.5(2017):1051-1056.
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