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

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

School of Medicine, Zhejiang University City College, Hangzhou 310015, Zhejiang, China
* Authors to whom correspondence should be addressed.
Received: 6 February 2013; in revised form: 21 February 2013 / Accepted: 27 February 2013 / Published: 6 March 2013
(This article belongs to the Section Chemical Sensors)
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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.
Keywords: fluorescent sensor; ratiometric sensor; porphyrin; zinc ion

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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.

AMA Style

Lv Y, Cao M, Li J, Wang J. A Sensitive Ratiometric Fluorescent Sensor for Zinc(II) with High Selectivity. Sensors. 2013; 13(3):3131-3141.

Chicago/Turabian Style

Lv, Yuanyuan; Cao, Mingda; Li, Jiakai; Wang, Junbo. 2013. "A Sensitive Ratiometric Fluorescent Sensor for Zinc(II) with High Selectivity." Sensors 13, no. 3: 3131-3141.

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