Layer-by-layer immobilization of horseradish peroxidase on a gold electrode modified with colloidal gold nanoparticles

. An amperometric biosensor, based on layer-by-layer self-assembly of colloidal gold nanoparticles, cysteine and horseradish peroxidase on Nafion modified electrode surface by electrostatic adsorption, has been used for the determination of hydrogen peroxide. The electrochemical behavior of the mult...

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