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Reference type: Journal
Authors: Park JK, Khan H, Lee JW
Article Title: Preparation of phenylalanine imprinted polymer by the sol-gel transition method.
Publication date: 2004
Journal: Enzyme and Microbial Technology
Volume: 35
Issue: (6-7)
Page numbers: 688-693.
DOI: 10.1016/j.enzmictec.2004.08.023
Alternative URL: http://www.sciencedirect.com/science/article/B6TG1-4DD9G6J-1/2/c7e83e17788e18300ef6da127890a03f

Abstract: A phenylalanine (Phe) imprinted polymer was prepared by the wet-phase inversion and sol-gel transition method to endow a copolymer matrix with a large uptake capacity of template molecules and prominent adsorption selectivity at the high concentration of the racemate solution. A copolymer bead prepared by wet-phase inversion was shrunken in a hydrochloric acid solution containing a large amount of template molecules after swelling in a sodium hydroxide solution. Template molecules were effectively implanted in the polymer matrix during shrinking after swelling. The adsorption selectivities of Phe-imprinted copolymer bead were 2.1 and 1.33 at 1 g and 10 g Phe/l racemate solution, respectively, and the Phe uptake capacity reached about 1 g Phe/g dry weight of the copolymer. The adsorption selectivity of the copolymer was retained after five batches of adsorption/desorption in 1 g Phe/l solution composed of 5% D-Phe and 95% L-Phe

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