Studies on Chitosan Coated on Silica for Imprinting Bovine Hemoglobin

Abstract

Abstract:

The silica modified with chitosan was synthesized as a carrier material. The glutaraldehyde was coupled with amido group of chitosan, and template protein-bovine hemoglobin was immobilized by aldehyde group. Then, the carrier was coated by sol-gel, after template protein was removed; molecularly imprinted polymer was prepared for selectively recognizing bovine hemoglobin(BHb). The results of IR and scanning electron microscope(SEM) demonstrated the formation of a grafting polymer layer on the modified silica gel surface. Selectivity adsorption experiments under equilibrium adsorption show that the imprinted polymers have good adsorption capacity and specific recognition for BHb in aqueous solution, and imprinted polymer hold good recognition capability for BHb when completive substances are present. The MIP synthesis strategy is promising for separating and purifying specific protein compositions in bio-samples. It may have good prospect for riching target protein, which is required to further study.

Key words: Molecular imprinted polymer, Bovine hemoglobin, Silica gel, Chitosan

CLC Number:

O657.3

TrendMD:

LIU Qiu-Ye, HE Xi-Wen*, LI Wen-You, CHEN Lang-Xing, ZHANG Yu-Kui*. Studies on Chitosan Coated on Silica for Imprinting Bovine Hemoglobin[J]. Chem. J. Chinese Universities, 2009, 30(4): 691.

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Studies on Chitosan Coated on Silica for Imprinting Bovine Hemoglobin

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