Laser Flash Photolysis Study on Electron Transfer Oxidation Reaction of Tryptophan or Tyrosine with Triplet State Vitamin K-3
文献类型:期刊论文
作者 | Tang, RZ(唐睿智) ; Li, HX(李海霞) ; Liu, YC(刘艳成) ; Zhang, P(张鹏) ; Cao, XY(曹西艳) ; Wang, WF(王文锋) |
刊名 | ACTA PHYSICO-CHIMICA SINICA
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出版日期 | 2012 |
卷号 | 28期号:1 |
ISSN号 | 1000-6818 |
英文摘要 | Laser flash photolysis was used to study the photosensitized oxidation mechanism of vitamin K-3, commonly known as 2-methyl-1,4-naphthoquinone (MQ), with tryptophan (TrpH) or tyrosine (TyrOH) in acetonitrile/water (1:1, V/V) solution. The triplet state of MQ reacted with TrpH or TyrOH by electron transfer with the formation of a MQ anion radical, which was directly observed in the transient absorption spectrum. The rate constants of the electron transfer reactions were determined to be 1.1 x 10(9) and 0.6 x 10(9) L.mol(-1).s(-1) for TrpH and TyrOH, respectively. The free energy changes (Delta G) of the reactions showed that the proposed electron transfer steps are thermodynamically feasible. |
语种 | 英语 |
WOS记录号 | WOS:000299721900030 |
公开日期 | 2013-12-05 |
源URL | [http://ir.sinap.ac.cn/handle/331007/13206] ![]() |
专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
推荐引用方式 GB/T 7714 | Tang, RZ,Li, HX,Liu, YC,et al. Laser Flash Photolysis Study on Electron Transfer Oxidation Reaction of Tryptophan or Tyrosine with Triplet State Vitamin K-3[J]. ACTA PHYSICO-CHIMICA SINICA,2012,28(1). |
APA | Tang, RZ,Li, HX,Liu, YC,Zhang, P,Cao, XY,&Wang, WF.(2012).Laser Flash Photolysis Study on Electron Transfer Oxidation Reaction of Tryptophan or Tyrosine with Triplet State Vitamin K-3.ACTA PHYSICO-CHIMICA SINICA,28(1). |
MLA | Tang, RZ,et al."Laser Flash Photolysis Study on Electron Transfer Oxidation Reaction of Tryptophan or Tyrosine with Triplet State Vitamin K-3".ACTA PHYSICO-CHIMICA SINICA 28.1(2012). |
入库方式: OAI收割
来源:上海应用物理研究所
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