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Updated: Jul 6, 2026

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Real-time In Vivo Recording of Arabidopsis Calcium Signals During Insect Feeding Using a Fluorescent Biosensor
Published on: August 15, 2017
A highly efficient and selective turn-on fluorescent sensor for Cu2+ ion based on calix[4]arene bearing four
Guang-Ke Li1, Zhen-Xiang Xu, Chuan-Feng Chen
1Beijing National Laboratory for Molecular Sciences, Laboratory of Chemical Biology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
Abstract:
A new fluorescent chemosensor based on calix[4]arene bearing four iminoquinoline subunits on the upper rim was conveniently synthesized, which showed a remarkable enhanced fluorescent intensity in the presence of Cu(2+) ion and a high selectivity toward Cu(2+) ion over a wide range of tested metal ions in acetonitrile.

