Abstract
Abstract Polydopamine (PDA), formed by self-polymerizing dopamine, is coated over a lactate oxidase (LOx)- and 1,2-naphthoquinone-modified MgO-template carbon electrode to improve electrode stability. After one week, the activity of the resultant electrode without a polydopamine film decreases to ∼60%, whereas that with a PDA coating can be maintained at ∼80%. This method is widely useful for improving the stability of biosensors and biofuel cells.
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