Chemically glycosylation improves the stability of an amperometric horseradish peroxidase biosensor

[Display omitted] •A sensor based on a 4-mercaptobenzoic acid SAM on gold nano-particles was created.•Horseradish peroxidase (HRP) was immobilized onto the SAM as sensing element.•We employed two forms of HRP: native and chemically glycosylated with lactose.•Modification of HRP with lactose improved...

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