Journal
JOURNAL OF CHEMICAL AND ENGINEERING DATA
Volume 60, Issue 8, Pages 2356-2362Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jced.5b00264
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Chitosan hydrogels were cross-linked with glutaraldehyde and examined for the adsorption of a model protein (bovine serum albumin, BSA) at different pH and cross-linking ratios. It was observed that the cross-linking significantly improved the chemical and structural stability of the hydrogel beads. The adsorption equilibrium was described by the Langmuir isotherm. The optimal adsorption capacity was identified at the cross-linking ratio of 0.2 and a pH of 5.5. The cross-linked chitosan hydrogels as well as BSA adsorbed chitosan hydrogels were characterized, and based on that, the adsorption mechanisms were discussed.
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