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Sensors 2013, 13(3), 3131-3141; doi:10.3390/s130303131

A Sensitive Ratiometric Fluorescent Sensor for Zinc(II) with High Selectivity

School of Medicine, Zhejiang University City College, Hangzhou 310015, Zhejiang, China
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Received: 6 February 2013 / Revised: 21 February 2013 / Accepted: 27 February 2013 / Published: 6 March 2013
(This article belongs to the Section Chemical Sensors)
View Full-Text   |   Download PDF [473 KB, uploaded 21 June 2014]   |  

Abstract

A new fluorescent Zn2+ chemosensor (P1) based on a functionalized porphyrin was synthesized and characterized. P1 displayed dramatic ratiometric variations in absorption and fluorescent emission spectra upon exposure to Zn2+ due to the formation of a 1:1 Zn2+/P1 complex. The sensor also exhibited high selectivity and sensitivity toward Zn2+ over other common metal ions in the physiological pH range with a detection limit of 1.8 mM. The sensor showed fast response times and excellent reproducibility, thus confirming its potential applicability as a fluorescent sensor for Zn2+ sensing. View Full-Text
Keywords: fluorescent sensor; ratiometric sensor; porphyrin; zinc ion fluorescent sensor; ratiometric sensor; porphyrin; zinc ion
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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    A Sensitive Ratiometric Fluorescent Sensor for Zinc(II) with High Selectivity. Sensors 2013, 13, 3131-3141

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MDPI and ACS Style

Lv, Y.; Cao, M.; Li, J.; Wang, J. A Sensitive Ratiometric Fluorescent Sensor for Zinc(II) with High Selectivity. Sensors 2013, 13, 3131-3141.

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