Application of Electrically Conducting Nanocomposite Material Polythiophene@NiO/Frt/GOx as Anode for Enzymatic Biofuel Cells

Abstract

In this work, nano-inspired nickel oxide nanoparticles (NiO) and polythiophene (Pth) modified bioanode was prepared for biofuel cell applications. The chemically prepared nickel oxide nanoparticles and its composite with polythiophene were characterized for elemental composition and microscopic characterization while using scanning electron microscopy. The electrochemical characterizations of polythiophene@NiO composite, biocompatible mediator ferritin (Frt) and glucose oxidase (GOx) catalyst modified glassy carbon (GC) electrode were carried out using cyclic voltammetry (CV), linear sweep voltammetry (LSV), and charge-discharge studies. The current density of Pth@NiO/Frt/GOx bioanode was found to be 5.4 mA/cm2. The bioanode exhibited a good bio-electrocatalytic activity towards the oxidation of the glucose. The experimental studies of the bioanode are justifying its employment in biofuel cells. This will cater a platform for the generation of sustainable energy for low temperature devices.

Research Progress in Enzyme Biofuel Cells Modified Using Nanomaterials and Their Implementation as Self-Powered Sensors

“…This is because the FAD cofactor that is buried deep within the protein shell is not easily inactivated. However, due to the deep location of the active site of the enzyme and the long tunneling time due to the macromolecular structure of the enzyme, it is difficult to transfer electrons on the electrode surface [ 46 ]. After material modification on the electrode surface, DET can be achieved through electron tunneling between the enzyme and the electrode.…”

Encapsulation of Glucose Oxidase on Zeolitic Imidazolate Framework-67 Collaborates with Carbon Nanotubes to Enhance the Electrochemical Performance of the Enzymatic Electrode

“…But enzymes are buried inside the material, making it difficult to transfer electrons outward. Bioanodes with nanonickel oxide (NiO) nanoparticles and polythiophene (Pth) modification can improve the performance of EBFC. The Pth@NiO/Frt/GOx bianode with ferritin (Frt) had a current density of 5.4 mA cm –2 and an ET rate of 2.0 s –1 .…”

Glucose-based biofuel cells and their applications in medical implants: A review

“…Using renewable power associated with glucose as the molecule also provides sustainability, and sources offer eco-friendliness [ 8 , 9 ]. Recently, it has been observed that using nanoparticles with conducting polymers can improve the performance of biofuel cells [ 10 , 11 ]. In a study by Saurabh Kumar et al, it was observed that when iron oxide nanoparticles are combined with poly (3,4-ethylene dioxythiophene): poly (styrene sulfonate) and used as the electrode, the electrochemical output and the stability of signal of the cancer biosensor were enhanced [ 12 ].…”