TiO_2 nanotube arrays: intrinsic peroxidase mimetics

摘要

TiO_2 nanotube arrays (NTA), prepared by potentiostatic anodiza-tion, were discovered to possess an intrinsic peroxidase-like activity. The colorimetric and electrochemical assays both demonstrated their excellent catalytic activity towards H_2O_2 reduction. On this basis, a simple and inexpensive electrochemical biosensor for glucose detection was developed.