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KMID : 0380020050200030133
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Korean Journal of Biotechnology and Bioengineering
2005 Volume.20 No. 3 p.133 ~ p.141
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Selective Separations Using Molecularly Imprinted Membranes
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Lee Jung-Woo
Park Joong-Kon
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Abstract
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This review presents the preparation, transport mechanism and application of molecularly imprinted membranes (MIM). Molecular imprinting has now been established as a technique which allows the creation of tailor-made binding sites for many classes of compounds. MIM have some advantages; a high capacity due to a large surface area, faster transport of substrate molecules and faster equilibrium of binding cavities compared to molecularly imprinted particles. MIM were prepared by covalent and non-covalent chemical bonding systems, by interactions between functional monomer and template. MIM can be prepared by in-situ polymerization, wet phase inversion, dry phase inversion, and surface imprinting method. MIM can continuously separate mixtures based on facilitated or retarded diffusion of the template. MIM can change their permeability in the presence of templates. MIM have a potential to be used to separate chiral compounds and materials with similar structures. However the application of MIM by the chemical industries is still in its infancy stages.
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KEYWORD
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Molecularly imprinted membranes, MIM, molecularly imprinted polymers, MIP, chiral separation
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