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Reference type: Journal
Authors: Demirci G, Dogac YI, Teke M
Article Title: A selective molecularly imprinted polymer for immobilization of acetylcholinesterase (AChE): an active enzyme targeted and efficient method.
Publication date: 2015
Journal: Journal of Molecular Recognition
Volume: 28
Issue: (11)
Page numbers: 645-650.
DOI: 10.1002/jmr.2475

Abstract: In the present study, we immobilized acetylcholinesterase (AChE) enzyme onto acetylcholine removed imprinted polymer and acetylcholine containing polymer. First, the polymers were produced with acetylcholine, substrate of AChE, by dispersion polymerization. Then, the enzyme was immobilized onto the polymers by using two different methods: In the first method (method A), acetylcholine was removed from the polymer, and then AChE was immobilized onto this polymer (acetylcholine removed imprinted polymer). In the second method (method B), AChE was immobilized onto acetylcholine containing polymer by affinity. In method A, enzyme-specific species (binding sites) occurred by removing acetylcholine from the polymer. The immobilized AChE reached 240% relative specific activity comparison with free AChE because the active enzyme molecules bounded onto the polymer. Transmission electron microscopy results were taken before and after immobilization of AChE for the assessment of morphological structure of polymer. Also, the experiments, which include optimum temperature (25-65 C), optimum pH (3-10), thermal stability (4-70 C), kinetic parameters, operational stability and reusability, were performed to determine the characteristic of the immobilized AChE. Copyright 2015 John Wiley & Sons, Ltd
Template and target information: acetylcholine
Author keywords: selective immobilization, molecular recognition, acetylcholinesterase, molecularly imprinted polymer

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