Protein Adsorption Characteristics of a Sulfonic-Acid-Group-Containing Nonwoven Fabric

7 August 1998

journal article
Published by Wiley in Biotechnology Progress

Vol. 14 (4) , 661-663
https://doi.org/10.1021/bp980060x

Abstract

A sulfonic acid (SO₃H)‐group‐containing nonwoven fabric was prepared by radiation‐induced graft polymerizaton of an epoxy‐group‐containing monomer, glycidyl methacrylate, onto a nonwoven fabric and subsequent sulfonation. The nonwoven fabric containing SO₃H groups at different densities was equilibrated with lysozyme in a buffer (pH 6.0). The equilibrium binding capacity (EBC) of lysozyme increased linearly with increasing SO₃H group density. The SO₃H‐group‐containing polymer chains extended from the pore surface due to mutual electrostatic repulsion and held lysozyme in multilayers. The maximum EBC was 0.7 kg/kg at a SO₃H group density of 1.7 mol/kg.

Keywords

SULFONIC
PROTEIN ADSORPTION
LYSOZYME
GROUP CONTAINING
NONWOVEN FABRIC CONTAINING
CONTAINING NONWOVEN
SO3H

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