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Reference type: Journal
Authors: Lu Y, Yan CL, Gao SY
Article Title: Preparation and recognition of surface molecularly imprinted core-shell microbeads for protein in aqueous solutions.
Publication date: 2009
Journal: Applied Surface Science
Volume: 255
Issue: (12)
Page numbers: 6061-6066.
DOI: 10.1016/j.apsusc.2008.12.080
Alternative URL: http://www.sciencedirect.com/science/article/B6THY-4V9S2MS-8/2/3cac19a376f3771c3575f444d8cbcd29

Abstract: In this paper, a surface molecular imprinting technique was reported for preparing core-shell microbeads of protein imprinting, and bovine hemoglobin or bovine serum albumin were used as model proteins for studying the imprinted core-shell microbeads. 3-Aminophenylboronic acid (APBA) was polymerized onto the surface of polystyrene microbead in the presence of the protein templates to create protein-imprinted core-shell microbeads. The various samples were characterized using scanning electron microscopy (SEM), transmission electron microscopy (TEM), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS) and Brunauer-Emmett-Teller (BET) methods. The effect of pH on rebinding of the template hemoglobin, the specific binding and selective recognition were studied for the imprinted microbeads. The results show that the bovine hemoglobin-imprinted core-shell microbeads were successfully created. The shell was a sort of imprinted thin films with porous structure and larger surface areas. The imprinted microbeads have good selectivity for templates and high stability. Due to the recognition sites locating at or closing to the surface, these imprinted microbeads have good property of mass-transport. Unfortunately, the imprint technology was not successfully applied to imprinting bovine serum albumin (BSA)
Template and target information: protein, bovine hemoglobin, bovine serum albumin, BSA
Author keywords: coating, proteins, molecular imprinting, Surface adsorption, XPS


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