One-step rapid synthesis of Au-Pt nanofems for electrochemical sensing and biosensing

摘要

Novel Au-Pt nanofern-like structures have been obtained with a fast and one-step electrodeposition process. The compositional characterization revealed that the Pt/Au ratio is equal to 0.25. The synergic effect between Au and Pt was confirmed by the considerable lowering of the detection voltage towards the direct detection of glucose and hydrogen peroxide. As a consequence of the low detection potentials, the prepared electrodes displayed a high selectivity for both glucose and hydrogen peroxide over biological interfering species including both electroactive endogenous compounds (e.g., ascorbic acid and dopamine) and exogenous ones (e.g., acetaminophen) in addition to providing advantages in circuit design.