کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10239128 | 46027 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Biomimetic catalysis of an organophosphate by molecularly surface imprinted polymers
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Biomimetic catalysis of an organophosphate by molecularly surface imprinted polymers Biomimetic catalysis of an organophosphate by molecularly surface imprinted polymers](/preview/png/10239128.png)
چکیده انگلیسی
A synthetic polymer selective for paraoxon was prepared by a molecular surface imprinting technique. We have combined molecular imprinting with the ability of histidine to chelate metal ions to create active centrum of phosphotriesterase on microbead surfaces. For this purpose, methacryloyl-histidine-copper(II) [MAH-Cu(II)] and methacryloyl-histidine-copper(II)-paraoxon [MAH-Cu(II)-paraoxon] metal chelating monomers were synthesized; paraoxon imprinted polymers were produced and the binding characteristics of the polymers were evaluated. The optimum pH was determined applying different pH values and the hydrolytic activity of phosphotriesterase was evaluated in the framework of Micheaelis-Menten kinetics. In addition, the values of maximal rate: Vm (4.58 Ã 10â2 μM/min) and Micheaelis-Menten constant, Km (1.28 Ã 10â3 M), were obtained from Lineweaver-Burk plots for the imprinted polymeric catalyst.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Catalysis A: General - Volume 286, Issue 2, 7 June 2005, Pages 221-225
Journal: Applied Catalysis A: General - Volume 286, Issue 2, 7 June 2005, Pages 221-225
نویسندگان
Rıdvan Say, Murat Erdem, Arzu Ersöz, Hayrettin Türk, Adil Denizli,