A Flexible, Low-Cost, Disposable Non-Enzymatic Electrochemical Sensor Based on MnO 2 /Cellulose Nanostructure

In this investigation, a new class of polysaccharide (cellulose nanowhiskers ) in the presence of manganese oxide nanoparticles (MnO 2 NPs) to produce hybrid materials was synthesized and used as a new sensor platform with high and fast electrochemical responses. A simple method of synthesis for pro...

Full description

Saved in:
Bibliographic Details
Published in:ECS journal of solid state science and technology 2022-12, Vol.11 (12), p.127003
Main Authors: Tohamy, Hebat-Allah S., Magar, Hend S.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this investigation, a new class of polysaccharide (cellulose nanowhiskers ) in the presence of manganese oxide nanoparticles (MnO 2 NPs) to produce hybrid materials was synthesized and used as a new sensor platform with high and fast electrochemical responses. A simple method of synthesis for producing different cellulosic nanostructures has been evaluated and characterized by Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscope (SEM),cyclic voltammogram (CV) and electrochemical impedance spectra (EIS). The FTIR analysis data approved the formation of cellulose and MnO 2 nanostructures. The uniform distribution of MnO 2 nanostructure over the cellulose nanowhiskers surface has been approved by using SEM. In addition, From CV and EIS characterization MnO 2 /Cellulose hybrid materials have electrocatalytic properties and promising applications in biosensors and non-enzymatic sensors fields. The MnO 2 /cellulose non-enzymatic sensor have been used for hydrogen peroxide choronoamperometric detection with high sensitivity 0.70 μ A μ M −1 , a linear concentration range from 0.2 − 400 μ M, lower of detection limit (LOD) of 0.04 μ M (S/N = 3) and R 2 of 0.98. The sensor was used for hydrogen peroxide detection in real samples with a high percentage of recovery from 93 to 110 %.
ISSN:2162-8769
2162-8777
DOI:10.1149/2162-8777/acad27