Formation of high-capacity protein-adsorbing membranes through simple adsorption of poly (acrylic acid)-containing films at low pH
Layer-by-layer polyelectrolyte adsorption is a simple, convenient method for introducing ion-
exchange sites in porous membranes. This study demonstrates that adsorption of poly
(acrylic acid)(PAA)-containing films at pH 3 rather than pH 5 increases the protein-binding
capacity of such polyelectrolyte-modified membranes 3–6-fold. The low adsorption pH
generates a high density of− COOH groups that function as either ion-exchange sites or
points for covalent immobilization of metal-ion complexes that selectively bind tagged …
exchange sites in porous membranes. This study demonstrates that adsorption of poly
(acrylic acid)(PAA)-containing films at pH 3 rather than pH 5 increases the protein-binding
capacity of such polyelectrolyte-modified membranes 3–6-fold. The low adsorption pH
generates a high density of− COOH groups that function as either ion-exchange sites or
points for covalent immobilization of metal-ion complexes that selectively bind tagged …
[引用][C] Formation of High-Capacity Protein-Adsorbing Membranes through Simple Adsorption of Poly (acrylic acid)-Containing Films at Low pH
B Somnath, D Jinlan, M Yiding, H Stacy - 2012
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