A turn-on fluorescent probe for cyanide based on aggregation of terthienyl and its application for bioimaging

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• 作者：Yue SunAuthor Vitae ; Ying LiAuthor Vitae ; Xiaotao MaAuthor Vitae ; Lian Duan ; ^{duanlian@tyut.edu.cn" class="auth_mail" title="E-mail the corresponding author}Author Vitae
• 关键词：Fluorescent probe ; Cyanide ; Terthienyl ; Aggregation
• 刊名：Sensors & Actuators: B. Chemical
• 出版年：2016
• 出版时间：1 March 2016
• 年：2016
• 卷：224
• 期：Complete
• 页码：648-653
• 全文大小：1649 K

文摘

A turn-on fluorescent probe based on terthienyl for CN⁻ has been constructed and CN⁻ was detected by taking advantage of aggregation-induced emission (AIE) behavior of terthienyl units in aqueous solutions. The probe displayed a high selectivity and sensitivity for CN⁻ against other analytes, and the detection limit was measured to be 0.1 μM. The aggregation behavior confirmed by DLS and SEM caused fluorescence enhancement in the sensing environment. A simple paper test strip system for the rapid monitoring of CN⁻ was developed. Moreover, the probe could be employed to detect CN⁻ in biological samples.