Non-enzymatic glucose sensor based on a g-C 3 N 4 /NiO/CuO nanocomposite

In this paper, a non-enzymatic glucose sensor was developed based on a g-C N /NiO/CuO nanocomposite immobilized on a glassy carbon electrode (GCE). Field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffract...

Full description

Saved in:
Bibliographic Details
Published in:Analytical biochemistry 2021-03, Vol.616, p.114062
Main Authors: Lotfi, Z, Gholivand, M B, Shamsipur, M
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, a non-enzymatic glucose sensor was developed based on a g-C N /NiO/CuO nanocomposite immobilized on a glassy carbon electrode (GCE). Field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and Brunauer-Emmett-Teller (BET) were utilized for the characterization of the synthesized g-C N /NiO/CuO nanocomposite. The electrocatalytic activity of the nanocomposite was investigated by cyclic voltammetry, and the amperometric technique was applied for monitoring glucose. The g-C N /NiO/CuO/GCE exhibited better electrocatalytic performance than g-C N /GCE, g-C N /CuO/GCE and g-C N /NiO/GCE. Under optimized conditions, the proposed sensor offered a linearity ranging from 0.4 μM to 8.5 mM with a detection limit of 0.1 μM and a sensitivity of 362.12 μA mM  cm . The constructed sensor displayed favorable reproducibility, outstanding selectivity, and long-term performance. These results reveal that the sensor is a promising candidate for blood glucose sensing.
ISSN:1096-0309