Electrochemical Methods to Characterize Nanomaterial-Based Transducers for the Development of Noninvasive Glucose Sensors

Nitrogen-containing three-dimensional biomass porous carbon materials as an efficient enzymatic biosensing platform for glucose sensing

“…The development of glucose detection techniques has attracted great interest in recent years due to their expanding practical applications in food and fermentation analysis, textile industry, environmental monitoring, medical diagnosis, [1][2][3][4][5] etc. Many techniques have been used for monitoring glucose levels, such as surface plasmon resonance, 6 near-infrared spectrometry, 7 mass spectrometry, [8][9][10] electrochemiluminescence, 11 uorescence, 12 colorimetry, 13 electrochemistry, 14 etc. Compared with the large-scale instruments with complicated operation, 15,16 electrochemical biosensors based on biomolecules immobilized on an electrode surface are promising tools owing to their high sensitivity, good selectivity, miniaturized compatibility, easy operation and low cost.…”

Cyclic Voltammetric and Electrical Impedance Spectroscopy Studies of Graphene- and Conductive Polymer-based Enzyme Electrodes

“…Electrochemical analysis by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) was conducted on SPCEs, GO-PEDOT:PSS/SPCEs, and prGO-PEDOT:PSS/ SPCEs to investigate the feasibility of the materials as transducers. In CV, we look into the current versus square root of scan rate and into the effective surface area to reveal electrode electrocatalytic activity and electron-transfer reversibility, while in EIS, we look into the chargetransfer resistance (Rct) at the electrode-solution interface [27,28]. We report on the aforementioned parameters from CV and EIS to identify the potential of the prGO-PEDOT:PSS as an ion-to-electron transducer, with SPCEs and GO -PEDOT:PSS/SPCEs as controls.…”