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

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

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Received: 6 February 2013; in revised form: 21 February 2013 / Accepted: 27 February 2013 / Published: 6 March 2013
(This article belongs to the Section Physical 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 fluorescent sensor; ratiometric sensor; porphyrin; zinc ion
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.
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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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