Abstract
Graphdiyne is a new carbon nanomaterial after graphene. It has excellent electrical properties and can be chemically modified. Here, a graphdiyne oxide-polyurethane nanocomposite (GDYO-PU) was synthesized by chemical coupling and characterized with Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM) and scanning electron microscopy (SEM). A GDYO-PU modified glassy carbon electrode (GCE) was applied as a non-enzymatic glucose electrode. The electrochemical property of the GDYO-PU electrode was investigated by cyclic voltammetry (CV), differential pulse voltammetry (DPV) and amperometry in the presence of [Fe(CN)6]3−/4− in 0.1 M NaOH alkaline solution and at the bias potential of 0.2 V. Fast electro-deposition was observed for the electrochemical deposition of Fe(CN)6 3−/4− on the GDYO-PU electrode surface. Under the optimized conditions, the calibration curve of the nano electrode is linear over the concentration range of 0.2 to 6.4 μM, with high sensitivity of 377 μAmM−1cm−2 as well as a low detection limit (LOD) of 0.1 μM (S/N = 3). The GDYO-PU nanocomposite based non-enzyme glucose electrode is therefore promising for analysis of tiny volume of biological samples, which meets the requirement of minimal invasive measurement in clinic and family care.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.