期刊
JOURNAL OF SEPARATION SCIENCE
卷 36, 期 7, 页码 1169-1175出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jssc.201201042
关键词
Bioseparation; Glycoproteins; Lectin affinity chromatography; Monolith; ROMP
资金
- Federal Ministry of Education and Research (BMBF) [0315333B]
Lectin-functionalized monolithic columns were prepared within polyether ether ketone (PEEK) columns (150 x 4.6 mm id) via transition metal-catalyzed ring-opening metathesis polymerization of norborn-2-ene (NBE) and trimethylolpropane-tris(5-norbornene-2-carboxylate) (CL) using the first-generation Grubbs initiator RuCl2(PCy3)(2)(CHPh) (1, Cy = cyclohexyl) in the presence of a macro-and microporogen, i.e. of 2-propanol and toluene. Postsynthesis functionalization was accomplished via in situ grafting of 2,5-dioxopyrrolidin-1-yl-bicyclo[2.2.1]hept-5-ene-2-carboxylate to the surface of the monoliths followed by reaction with alpha,omega-diamino-poly(ethyleneglycol). The pore structure of the poly(ethyleneglycol)derivatized monoliths was investigated by electron microscopy and inverse-size exclusion chromatography, respectively. The amino-poly(ethyleneglycol) functionalized monolithic columns were then successfully used for the immobilization of lectin from Lens culinaris hemagglutinin. The thus prepared lectin-functionalized monoliths were applied to the affinity chromatography-based purification of glucose oxidase. The binding capacity of Lens culinaris hemagglutinin-immobilized monolithic column for glucose oxidase was found to be 2.2 mg/column.
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