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Updated: May 2, 2026

An Aptamer-based Sensor for Unchelated GadoliniumIII
Published on: January 9, 2017
A sensitive colorimetric and fluorescent sensor based on imidazolium-functionalized squaraines for the detection of
Ningjie Wu1, Jingbo Lan, Lipeng Yan
1Key Laboratory of Green Chemistry, Technology of Ministry of Education, College of Chemistry, State Key Laboratory of Biotherapy, West China Medical School, Sichuan University, 29 Wangjiang Road, Chengdu 610064, PR China. jingbolan@scu.edu.cn jsyou@scu.edu.cn.
Abstract:
Imidazolium-functionalized squaraine ImSQ8 is synthesized as a sensitive colorimetric and fluorescent chemosensor for GTP in aqueous solution. The detection limit of GTP reaches 5.4 ppb. Its applications in the live-cell imaging and enzyme activity assay have also been demonstrated.
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