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Affinity Adsorption of Bilirubin on cibacron blue f3ga-modified Microporous Polytetrafluoroethylene Capillary

Chemical Research in Chinese Universities 2010年第2期26卷 323-330页

作者： JIN Gu YAO Jian-xia Department of Chemistry University of Science and Technology of China Hefei 230026 P. R. China

Bilirubin removal from human plasma was obtained via an affinity microporous polytetrafluoroethylene（MPTfE） capillary. The new adsorbent comprised grafted glycidyl methacrylate（GMA） via radiation-induced polymerization as hydrophilic coating and reactive sites; ethylenediamine（EDA） as a spacer arm; cibacron blue f3ga（CB f3ga） as an affinity ligand; MPTfE capillary as the supporting matrix. The average density of CB f3ga attachment to MPTfE capillaries was found to be 136.5 μmol/g. The capacity of bilirubin adsorbed on affinity MPTfE capillaries is 76.1 mg bilirubin/g polymer（at 25℃）. This new adsorbent has advantages over both membrane and traditional micro-column, and this system is stable and easy to operate. The results of blood tests suggest the CB f3ga affinity capillary has good blood compatibility.

关键词： Bilirubin removal Radiation grafting cibacron blue f3ga Polytetrafluoroethylene Microporous capillary

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Preparation of cibacron blue f3ga Bonded Poly (styrenedivinylbenzene) (PSDVB) Microbeads Used for High Performance Affinity Chromatography

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Chinese Chemical Letters 1999年第7期10卷 583-586页

作者： Li SHEN Bo Hui XIONG Run Zhi CONG Jun De WANG(Dalian Institute of Chemical Physics. The Chinese Academy of Sciences. Dalian 116012) Chinese Acad Sci Dalian Inst Chem Phys Dalian 116012 Peoples R China

Rigid PSDVB microbeads have been modified with poly(vinyl alcohol) (PVA) adsorbed on their surface to produce an affinity medium. Then cibacron blue f3ga was covalently attached to the supports. The initial concentration of PVA has effect on the adsorption of PVA. The non-specific interaction of bovine serum albumin (BSA) on the microbeads decreases with the PVA adsorbed. The pH stability test shows that the affinity medium is stable up to pH 11.0. And it has specific interaction with lysozyme, but not with pepsin.

关键词： PSDVB microbeads PVA affinity medium cibacron blue f3ga

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Adsorption of Human Serum Albumin onto PVA-coated Affinity Microporous PTfE Capillary

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Chemical Research in Chinese Universities 2008年第2期24卷 154-161页

作者： JIN Gu YAO Qi-zhi ZHANG Lei Department of Chemistry University of Science and Technology of China Hefei 230026 P. R. China

Affinity dye-ligand cibacron blue f3ga（CB f3ga） was covalently coupled with poly（vinyl alcohol）（PVA） coated on the inner surface of microporous poly（tetra-fluoroethylene）（MPTfE） membranous capillary. The PVA-coated PTfE capillary surface was characterized by XPS and fESEM. The grafting degree of PVA and the amount of CB f3ga immobilized onto the membranous capillary were 23.5 mg/g and 89.6 pmol/g, respectively. These dyed membranous capillaries were chemically and mechanically stable, and could be reproducibly prepared. Human serum albumin（HSA） was selected as model protein. The saturation adsorbance of the dye attached membranous capillary was 85.3 mg HSA/g, while the capacity of non-specific adsorption for HSA was less than 0.3 mg/g.

关键词： Albumin adsorption cibacron blue f3ga PVA PTfE Plasma

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