一种用于铁阳离子的高选择性和高灵敏度的无机/有机杂化聚合物荧光“开启”化学传感系统。
A highly selective and sensitive inorganic/organic hybrid polymer fluorescence "turn-on" chemosensory system for iron cations.
作者信息
Fan Li-Juan, Jones Wayne E
机构信息
Department of Chemistry, State University of New York at Binghamton, Binghamton, NY 13902-6016, USA.
出版信息
J Am Chem Soc. 2006 May 31;128(21):6784-5. doi: 10.1021/ja0612697.
Abstract
A polymer-based fluorescence "turn-on" chemosensor is demonstrated with high sensitivity and selectivity toward Fe2+ cations. This system is an inorganic/organic hybrid system in which Cu2+ is coordinated at the receptor site of a conjugated polymer sensor. The unique quenching behavior of the Cu2+ toward this conjugated polymer was used to lower the initial fluorescence intensity of the sensory system. This results in a highly sensitive and also selective sensory system toward Fe2+ as compared to other related divalent transition-metal cations in solution.
摘要
一种基于聚合物的荧光“开启”化学传感器被证明对Fe2+阳离子具有高灵敏度和选择性。该系统是一种无机/有机混合系统，其中Cu2+在共轭聚合物传感器的受体位点配位。利用Cu2+对这种共轭聚合物的独特猝灭行为来降低传感系统的初始荧光强度。与溶液中其他相关的二价过渡金属阳离子相比，这导致了一种对Fe2+具有高灵敏度和选择性的传感系统。
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