Amplified Fluorescence Quenching and Biosensor Application of a Poly(p-phenylene) Cationic Polyelectrolyte
作者单位：清华大学深圳研究生院广东省化学生物学重点实验室 Department of Chemistry University of Florida Department of Chemistry University of Florida
会议名称：《第七届全国磷化学化工暨第四届海峡化学生物学、生物技术与医药发展讨论会》
会议日期：2006年
学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070305[理学-高分子化学与物理] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学]
关 键 词：QTL Amplified Fluorescence Quenching and Biosensor Application of a Poly Cationic Polyelectrolyte p-phenylene
摘 要：The quenching behavior of a water-soluble cationic poly(para-phenylene) bearing quaternized ammonium side groups (P-NEt3+) was studied. P-NEt3+ is efficiently quenched by sodium anthraquinone-2,6-disulfonate (AQS) and sodium 1,4,5,8-naphthalenediimide-N,N -bis(methylsulfonate) (NDS) in aqueous solution via a photoinduced electron transfer mechanism. Absorption spectra of the NDS/P-NEt3+ ion-pair complex indicated formation of a stable