Single-step electrochemical deposition of high performance Au-graphene nanocomposites for nonenzymatic glucose sensing

Free-standing Au inverse opals for enhanced glucose sensing

“…In addition, the ratio of I a /I c was used to assess the catalyst's capability to remove the poisoning intermediate species, in which a larger I a /I c ratio corresponds to stronger oxidation of glucose and better tolerance to poisoning intermediates [23,[27][28][29][30]. In this study, GIO-300 exhibits the highest I a /I c ratio, indicating its superior catalytic activity and great poisoning tolerance for glucose oxidation.…”

“…Identical technique has been employed to estimate the ECSA of nanostructured Au by several research groups [23][24][25][26]. Fig.…”

“…Those parameters include the peak apparent current density in anodic scan (I a ) and in cathodic scan (I c ), the peak specific activity in anodic scan (SA a ) and in anodic scan (SA c ) calculated by the peaked apparent current density normalized by ECSA, and the ratio of I a to I c (I a /I c ). In the anodic scan, two oxidation peaks appear around -0.35 V and 0.35 V. The first peak around -0.35 V is associated with the adsorption of glucose on the gold surface and its subsequent oxidation via a 2 electron transfer reaction to form gluconolactone [23,27]. The second oxidation peak around 0.35 V is attributed to further oxidation of glucose and glucose intermediates.…”

Dual Activities of Nano Silver Embedded Reduced Graphene Oxide Using Clove Leaf Extracts: Hg2+ Sensing and Catalytic Degradation

“…Shu et al. synthesized gold/graphene nanocomposites for the detection of glucose . Nasrollahzadeh et al.…”

Graphene‐based Electrochemical Glucose Sensors: Fabrication and Sensing Properties

“…Gold‐based nanomaterials have exhibited excellent sensing performances for the nonenzymatic electrochemical detection of glucose , , , . To improve the electrochemical performance for glucose sensing, two main strategies on graphene and Au nanoparticles have been well used.…”