Article ID Journal Published Year Pages File Type
177801 Dyes and Pigments 2008 7 Pages PDF
Abstract

Reversible biosensors based on 2-(3,5-dinitrophenyl)-4-[4-(1,4,7,10-tetraoxa-13-azacyclopentadecyl)benzylidene]-5-oxazolone (CPO-I), 2-(4-nitrophenyl)-4-[4-(1,4,7,10-tetraoxa-13-azacyclopentadecyl)benzylidene]-5-oxazolone (CPO-II) and 2-(4-tolyl)-4-[4-(1,4,7,10-tetraoxa-13-azacyclopentadecyl)benzylidene]-5-oxazolone (CPO-III) derivatives immobilized in a polyvinylchloride matrix, doped with acetylcholinesterase, have been developed. The biosensors were calibrated for acetylcholine as neurotransmitter and the potent, selective and reversible cholinesterase inhibitor, donepezil ((±)-2-[(1-benzyl-piperidine-4-yl)ethyl]-5,6-dimetoxyindan-1-one hydrochloride). The photophysical parameters of all derivatives were also examined in PVC in which medium, they exhibited excellent photostability.

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Physical Sciences and Engineering Chemical Engineering Chemical Engineering (General)
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