Journal
JOURNAL OF POROUS MATERIALS
Volume 14, Issue 4, Pages 387-391Publisher
SPRINGER
DOI: 10.1007/s10934-006-9031-0
Keywords
Shirasu Porous Glass; atom-transfer radical polymerization; bovine serum albumin; polymer brush; adsorption
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Protein adsorption was performed by a polymer brush prepared by atom-transfer radical polymerization (ATRP) to a porous inorganic membrane. The porous inorganic membrane, Shirasu Porous Glass made from silica, was modified with a halogen-containing compound to bind the active species for the polymerization. Glycidyl methacrylate was polymerized from the halogen compound by ATRP for a prescribed time, and subsequently chemically modified. The progression of the chemical modification allowed the membrane to lower the phosphate-buffer flux of the porous membrane due to the attachment of the polymer brush. Bovine serum albumin (BSA), as a model protein, was adsorbed at 12 mg per gram of the membrane in permeating BSA solution through the polymer-brush-attached porous membrane.
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