Imprinted polymer/organo-smectite nanocomposites for paraoxon hydrolysis
| Autor: | Adil Denizli, Hayrettin Türk, Arzu Ersöz, Rıdvan Say, Murat Erdem |
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| Přispěvatelé: | Anadolu Üniversitesi, Fen Fakültesi, Fizik Bölümü, Erdem, Murat, Say, Rıdvan, Ersöz, Arzu, Türk, Hayrettin |
| Rok vydání: | 2010 |
| Předmět: |
chemistry.chemical_classification
Nanocomposite Parathion Paraoxon biology Artificial enzyme Organo-Smectite Hydrolysis Geology Polymer Catalysis chemistry.chemical_compound chemistry Geochemistry and Petrology Bromide Selectivity Of Imprinted Polymers medicine biology.protein Organic chemistry Nuclear chemistry medicine.drug |
| Zdroj: | Applied Clay Science. 47:223-228 |
| ISSN: | 0169-1317 |
| DOI: | 10.1016/j.clay.2009.10.011 |
| Popis: | WOS: 000275134200008 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] (MOEDMAC(16)) 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 k(cat)/K-m values) for paraoxon hydrolysis by a factor of 391 compared to that of parathion hydrolysis |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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