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Sensors 2014, 14(12), 24146-24155; doi:10.3390/s141224146

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

1,†
,
2,†
,
3
and
1,*
1
Laboratory of Environmental Monitoring, School of Tropical and Laboratory Medicine, Hainan Medical University, Haikou 571101, China
2
Faculty of Laboratory Medicine, School of Tropical and Laboratory Medicine, Hainan Medical University, Haikou 571101, China
3
Department of Pharmacy, Hainan Medical University, Haikou 571101, China
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Received: 7 November 2014 / Revised: 5 December 2014 / Accepted: 8 December 2014 / Published: 15 December 2014
(This article belongs to the Section Chemical Sensors)
View Full-Text   |   Download PDF [2056 KB, uploaded 15 December 2014]   |  

Abstract

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. View Full-Text
Keywords: fluorescent probe; naphthalimide; Cu2+; schiff base; pyridine fluorescent probe; naphthalimide; Cu2+; schiff base; pyridine
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Zhang, J.; Wu, Q.; Yu, B.; Yu, C. A Pyridine-Containing Cu2+-Selective Probe Based on Naphthalimide Derivative. Sensors 2014, 14, 24146-24155.

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