It is well-known that the retaining of normal glucose level is very important for human health. Therefore, the development of  biosensor for selective and sensitive glucose  detection has attracted increasing attention. Most of reported biosensors are  constructed based on glucose oxidase that usually underwent poor sensitivity and stability. Consequently, recent attempts have been devoted to develop non-enzymatic glucose biosensor by using metal nanoparticles as electrocatalysts. In this work, we report electrodeposition of Pt nanoparticles on the C60-decoreted glssy carbon electrode to fabricate a non-enzyme biosensor for selective and sensitive detection of glucose in a physiological pH condition. The composite catalysts were characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). It was found that the deposition of Pt on C60-decorated glassy carbon (GC) electrode exhibted an enhanced sensitivity, selectivity and stability than on naked GC electrode (Fig. 1). The experimental conditions such as effect of deposition time and potential on the electrocatalytic activity of composite were also systematically investigated. The present work demonstrated a simple and efficient approach for non-enzyme detection of glucose that may contribute to fabrication more practical biosensors based on C60-decorated glassy carbon electrode.

Presenter: Xuan Zhang