A novel method to construct a 3D FeWO 4 microsphere-array electrode as a non-enzymatic glucose sensor
Year: 2019
Type: article
Abstract: As the special sensor for glucose detection, a non-noble-metal nanoarray architecture is extremely attractive due to its easy accessibility to target molecules and more exposed surface area. In this communication, we report the first synthesis of FeWO 4 microsphere-array on the three-dimensional (3D) Ni foam (FeWO 4 microspheres/NF) as the mimetic electrode for efficient catalytic oxidation of glucose in an alkaline medium. When used as an artificial analog glucose sensor, the result of the present sensing system can also be calculated with a sensitivity of 2810 μ A mM cm −2 , a linear range from 0.04 mM to 2 mM and a detection limit up to 1.4 μ M (S/N = 3). This glucose sensor with satisfactory stability and reproducibility can also be applied to the detection of glucose in human serum. As a promising sensing platform, this proposed 3D FeWO 4 microspheres/NF may open a new strategy for pursuing electrochemical detection of biomolecules.
Source: Nanotechnology
Authors: Xiufeng Wu, Cancan Bao, Qiangqiang Niu, Wenbo Lu
Institution: Shanxi Normal University
Language: English
Subfield: Analytical Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2909445998