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Reference type: Journal
Authors: Sun H, Lai JP, Lin DS, Huang XX, Zuo Y, Li YL
Article Title: A novel fluorescent multi-functional monomer for preparation of silver ion-imprinted fluorescent on-off chemosensor.
Publication date: 2016
Journal: Sensors and Actuators B: Chemical
Volume: 224
Page numbers: 485-491.
DOI: 10.1016/j.snb.2015.10.052
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0925400515305189

Abstract: A new fluorescent multi-functional monomer (E)-3',6'-bis (allyloxy)-2-((thiazol-2-ylmethylene)amino)-4a',9a'-dihydrospiro[isoindoline-1,9'-xanthen]-3-one (ATMIX) was successfully synthesized for the first time. The obtained ATMIX not only exhibited fluorescence on-off characteristics toward Ag(I), but also could produce radical polymerization with cross-linkers. Based on ATMIX, a novel ion-imprinted fluorescent on-off sensor (IIFOS) was fabricated successfully for selective recognition of Ag(I). The morphology, structure and fluorescent property of IIFOS was characterized by infrared spectroscopy, scanning electron microscopy (SEM) and fluorescent spectrometry. The results indicated that the obtained IIFOS exhibited high selective fluorescence on-off characteristics toward Ag(I) based on the mechanism of photoinduced electron transfer. What is more, the IIFOS is reusable and has been applied to detect Ag(I) in water sample with satisfactory recoveries
Template and target information: silver ion, Ag(I)
Author keywords: Fluorescent multi-functional monomer, Fluorescent on-off chemosensor, Photoinduced electron transfer, ion-imprinted membrane, Silver ion

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