Semicarbazide-based naphthalimide as a highly selective and sensitive colorimetric and 'turn-on' fluorescent chemodosimeter for Cu2+

Autor: Yue-Ting Su, Xiao-Xing Fan, Xiao-Xiao Hu, Xin-Qi Zhan, Hong Zheng, Xiao-Lan Zheng
Rok vydání: 2016
Předmět:
Zdroj: Sensors and Actuators B: Chemical. 227:191-197
ISSN: 0925-4005
DOI: 10.1016/j.snb.2015.12.037
Popis: A semicarbazide-based naphthalimide was designed and synthesized as a colorimetric fluorescent probe. Upon reaction with Cu2+ in a buffer solution of pH 7.4 (buffer water/acetonitrile = 80:20, v/v), the probe exhibits color changes from colorless to jade-green accompanying remarkable enhancement in its fluorescence, which could be mechanistically ascribed to the Cu2+-promoted hydrolysis of the semicarbazide moiety leading to the release of the green fluorescent 4-amino-1,8-naphthalimide fluorophore. The probe also displayed excellent performance in high sensitivity as well as good selectivity for Cu2+ over other metallic cations.
Databáze: OpenAIRE