Electrochemical sensing of ascorbic acid (AA) from human sweat using Ni–SnO2 modified wearable electrode

A simple electrochemical sensor for ascorbic acid was developed on the basis of charge transfer synergy improvements of Ni-SnO2. Electronic gadgets are always evolving; thus, it is essential that new and better materials must be developed and used. The hydrothermal technique was used to synthesize the Ni-SnO2 nanocomposite. The successful confirmation of the nanocomposite was confirmed through X-ray diffraction and Field emission scanning electron microscopy analysis and further validated by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy analysis. A Ni-SnO2-modified conductive fabric electrode was created to determine ascorbic acid levels via differential pulse voltammetry. Considering optimal conditions, the Ni-SnO2 modified electrode shows a linear response to ascorbic acid between 100 and 600 μM with quantification and detection limits of 57.911 µM and 19.11 µM, respectively. Furthermore, ascorbic acid was ascertained using the Ni-SnO2-based modified electrode, suggesting that this platform is useful for the regular measurement of ascorbic acid in human sweat samples.