华侨大学学报(自然科学版)2011,Vol.32Issue(6):646-651,6.
阴离子聚电解质诱导硫代黄素T激基缔合物的形成因素分析
Formation of Thioflavin T Excimer Induced by Anionic Polyelectrolyte and Its Influencing Factors
摘要
Abstract
In this paper, we have studied the formation of thioflavin T (ThT) excimer induced by anionic polyelectrolyte sodium polyethylene sulfonate (PVS). The influencing factors of the formed Thioflavin T excimer in the presence of PVS were investigated. Furthermore, we have made a study on the interaction of ThT with three kinds of anionic polyelectrolyte (PVS, PSS and PAA) by spectroscopic techniques as well as computational approach of quantum chemistry computational approach of quantum chemistry. Results showed that Ph of solution, concentration of solvent and electrolyte affect the formation of ThT excimer significantly. PSS and PVS can promote the formation of excimer, but PAA can not PVS can increase partial concentration of ThT by electrostatic attraction process, markedly promoting the formation of excimer.关键词
硫代黄素T/激基缔合物/荧光分析/聚电解质/量子化学Key words
thioflavin T/excimer/fluorescence analysis/polyelectrolyte/quantum chemistry分类
化学化工引用本文复制引用
唐琪,孙向英,李芳..阴离子聚电解质诱导硫代黄素T激基缔合物的形成因素分析[J].华侨大学学报(自然科学版),2011,32(6):646-651,6.基金项目
国家自然科学基金资助项目(20955001 ()
20575023) ()
福建省自然科学基金资助项目(D0810016) (D0810016)
教育部留学回国人员科研启动基金资助项目(2008年度) (2008年度)