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Reference type: Journal
Authors: Cheng ZY, Li YZ
Article Title: The role of molecular recognition in regulating the catalytic activity of peroxidase-like polymers imprinted by a reductant substrate.
Publication date: 2006
Journal: Journal of Molecular Catalysis A: Chemical
Volume: 256
Issue: (1-2)
Page numbers: 9-15.
DOI: 10.1016/j.molcata.2006.04.042
Alternative URL: http://www.sciencedirect.com/science/article/B6TGM-4K1G5HR-6/2/7aa597dc16fd9da5831339c2394963b7

Abstract: Due to the unique structural features of hemin as well as the controlled interactions between functional monomers and the substrate homovanillic acid, a new type of catalytically active polymers was allowed to be well designed and prepared by molecular imprinting with hemin introduced as the catalytic center. Subsequent to a previous work on mimicking peroxidase by molecular imprinting techniques, this paper is focused on the regulating role of molecular recognition in substrate-binding and enzyme-like activity of the imprinted polymers, and a mechanistic elucidation was made on the catalytic reactions. The results demonstrated that the catalytic activity of the molecular imprinted polymers (MIP) was largely determined by substrate-binding sites and the molecular recognition process. Hemin was proven to not only serve as the catalytic center but also play an essential role in molecular recognition; the multiple-site interactions between the plural co-monomers and the substrate may overcome the interference of water molecules during molecular recognition and confer on the MIP an ideal substrate specificity toward template and catalytic activity even under aqueous conditions
Template and target information: homovanillic acid
Author keywords: molecularly imprinted polymers (MIP), Peroxidase-like activity, molecular recognition, Multi-site interaction, Mechanistic elucidation


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