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A sensitive ratiometric fluorescent sensor for zinc(II) with high selectivity.


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.

SUBMITTER: Lv Y 

PROVIDER: S-EPMC3658736 | BioStudies | 2013-01-01

REPOSITORIES: biostudies

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