Abstract

Different methods of covalent lysozyme immobilization have been compared to choose an optimal approach to the development of a material suitable for medical applications in extracorporeal therapy. A novel method for lysozyme immobilization on a polymeric agarose matrix has been proposed, which provides the effective action of lysozyme on bacterial cells and eliminates the leakage of the enzyme from the material. The resultant immobilized lysozyme exhibits bacteriolytic activity toward Gram-positive bacteria Micrococcus luteus and Gram-negative bacteria Escherichia coli. During the immobilization of the enzyme, a broadening of the pH optimum of its activity occurs. The compatibility of immobilized lysozyme with human whole blood has been shown.

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