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Fast and Reversible "Turn On" Fluorescent Sensors Based on Bisphenol-a for Zn in Aqueous Solution

Overview
Journal J Fluoresc
Specialties Biophysics
Chemistry
Date 2019 Jul 26
PMID 31342231
Citations 2
Authors
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Abstract

Two novel bisphenol-A derivatives (R1 and R2) linked pyrene and napthylthiazole moieties were synthesized via condensation reaction, and positively applied for the selective recognition of Zn ion in EtOH/HO. Their optical properties were observed by using UV-vis and fluorescence measurements. R1 and R2 exhibited high selectivity and sensitivity towards Zn over other metal ions. This fluorescence selectivity may be owing to inhibited excited-state intramolecular proton transfer (ESIPT) and photoinduced electron transfer (PET). The fluorescence titration analysis indicated detection limits of R1 and R2 for Zn at 17.5 nM and 0.94 μM, respectively. Moreover, R1 and R2 were successfully applied to the detection of Zn with different concentrations in water samples.

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Novel Benzothiazole-Based Highly Selective Ratiometric Fluorescent Turn-On Sensors for Zn and Colorimetric Chemosensors for Zn, Cu, and Ni Ions.

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PMID: 34604629 PMC: 8482408. DOI: 10.1021/acsomega.1c02855.


Phenolphthalein Conjugated Schiff Base as a Dual Emissive Fluorogenic Probe for the Recognition Aluminum (III) and Zinc (II) Ions.

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