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Reference type: Journal
Authors: Piletsky SA, Andersson HS, Nicholls IA
Article Title: The rational use of hydrophobic effect-based recognition in molecularly imprinted polymers.
Publication date: 1998
Journal: Journal of Molecular Recognition
Volume: 11
Issue: (1-6)
Page numbers: 94-97.
DOI: 10.1002/(SICI)1099-1352(199812)11:1/6<94::AID-JMR398>3.0.CO;2-C

Abstract: A novel molecularly imprinted polymer (MIP) system selective for D- phenylalanine is described where polymerization is performed in aqueous solution. The unique polymer system comprises a hydrophobic moiety-selective functional monomer, polymerizable beta-cyclodextrin, an electrostatic interacting functional monomer, 2-acryloylamido-2- methylpropane sulfonic acid (AMPSA), and the crosslinking agent N,N'- diacryloylpiperazine. Chromatographic evaluation of polymer-ligand recognition characteristics demonstrated ligand selectivity by the MIP and that optimal recognition was achieved through a balance of hydrophobic and electrostatic ligand-polymer interactions, indicating that recognition in these systems is regulated by enthalpy-entropy compensation. The imprinting effect was shown to be sufficient to reverse the inherent selectivity of cyclodextrin for L-phenylalanine. (C) 1998 John Wiley & Sons, Ltd

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