A Pyridine-Containing Cu2+-Selective Probe Based on Naphthalimide Derivative

Sensors

Jun Zhang¹  Qiang Wu³  Bangliang Yu² 

[1] Laboratory of Environmental Monitoring, School of Tropical and Laboratory Medicine, Hainan Medical University, Haikou 571101, China; E-Mail:;Department of Pharmacy, Hainan Medical University, Haikou 571101, China; E-Mail:;Faculty of Laboratory Medicine, School of Tropical and Laboratory Medicine, Hainan Medical University, Haikou 571101, China; E-Mail:

关键词: fluorescent probe;    naphthalimide;    Cu²⁺;    schiff base;    pyridine;   

DOI  :  10.3390/s141224146

来源: mdpi

【 摘 要 】

A new fluorescent probe P derived from naphthalimide bearing a pyridine group has been synthesized and characterized. The proposed probe P shows high selectivity and sensitivity to Cu²⁺ in aqueous media. Under optimized conditions, the linear response of P (2 μM) toward Cu²⁺ was 0.05–0.9 μM in ethanol-water solution (3:2, v:v, 50 mM HEPES, pH 7.4), and the detection limit was 0.03 μM.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.