MIPdatabase
Authors: Erdem M, Say RI, Ersöz A, Denizli A, Türk H
Article Title: Imprinted polymer/organo-smectite nanocomposites for paraoxon hydrolysis.
Publication date: 2010
Journal: Applied Clay Science
Volume: 47
Issue: (3-4)
Page numbers: 223-228.
DOI: 10.1016/j.clay.2009.10.011
Alternative URL: http://www.sciencedirect.com/science/article/B6V8Y-4XKBYJC-1/2/997e0256c4b709c6e7dd2afbb94f1984
Abstract: We have used the imprinting technique to create a polymer/organo-smectite nanocomposite catalyst. The aim was preparing a synthetic enzyme which shows high selectivity for paraoxon hydrolysis. Paraoxon imprinted polymer/organo-smectite composites (PIPO) and non-imprinted polymer/organo-smectite composites (NIPO) were prepared using methacryloylhistidine-Cu2+ (MAH-Cu(II)) and [2-methacryloyloxy)ethyl]dimethylhexadecylammonium bromide] (MOEDMAC16) modified smectite. These nanocomposites were applied as a catalyst in the hydrolysis of paraoxon which is an organophosphate ester and used as a pesticide. The catalytic activity of these composites was evaluated according to the enzyme kinetics model of Michaelis-Menten. PIPO showed better catalytic activity than NIPO. In addition, the paraoxon imprinted nanocomposite had greater catalytic activity (based on kcat/Km values) for paraoxon hydrolysis by a factor of 391 compared to that of parathion hydrolysis
Template and target information: paraoxon
Author keywords: paraoxon, Organo-smectite, hydrolysis, Parathion, Selectivity of imprinted polymers
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