A tetraphenylethylene-based fluorescent chemosensor for Cu2+ in aqueous solution and its potential application to detect histidine

Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry
Yan ZengDeqing Zhang

Abstract

A tetraphenylethylene-based compound with the property of aggregation-induced emission was designed and synthesized. It exhibited good sensitivity and selectivity to Cu(2+) over other metal ions (Zn(2+), Cd(2+), Ba(2+), Ni(2+), Mg(2+), Ca(2+), Co(2+), Fe(3+), Pb(2+), Mn(2+), Fe(2+), Ag(+), K(+), and Hg(2+)) in an aqueous solution by the "turn-off" UV-vis absorbance and fluorescence signals. More interesting, with the subsequent addition of histidine rather than other amino acids such as proline, alanine, aspartic acid, lysine, arginine, leucine, glutamine or cysteine, the complex between the compound and Cu(2+) was disrupted, and the UV-vis absorbance and fluorescence signals were recovered, indicating that the complex from the compound and Cu(2+) could be used as a "turn-on" fluorescent probe for histidine.

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Citations

Dec 20, 2018·Luminescence : the Journal of Biological and Chemical Luminescence·Serkan ErdemirOzcan Kocyigit
May 21, 2019·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Tingting ShuYanhua Yu

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