Non-enzymatic hydrogen peroxide detection on a novel nanohybrid composite of chitosan and grafted graphene oxide

Nasir A, Khalid S, Mazare AV, Yasin T (2023)

Publication Type: Journal article

Publication year: 2023

Journal

Materials Research Bulletin Elsevier

Book Volume: 167

Article Number: 112427

DOI: 10.1016/j.materresbull.2023.112427

Abstract

Hydrogen peroxide (H2O2) is a significant constituent of several biological and industrial processes; however, as it is malignant to human health, the ability to detect its presence is indispensable. From the various H2O2 detection methods, enzyme-free electrochemical detection method is thriving in research, as it is economical, easy-to-use, stable, and provides repeatable platforms. Herein, we report on a metal-free, novel, biopolymer-based low-cost, stable, and easy-to-operate, conducting nanohybrid composite for the non-enzymatic detection of H2O2. This nanohybrid composite consists of a novel crosslinked chitosan (CS) and polyaniline (PANI) grafted graphene oxide (GO) (GOP) composite. In the first step, a gamma-irradiated GO (γGO) substrate is used for the in-situ graft polymerization of aniline, and following the grafted nanohybrid was incorporated in a CS matrix and crosslinked with tetraethylorthosilicate (TEOS) to form CS and GO composites. The sensor, fabricated by coating the newly prepared composite on a glassy carbon electrode, was tested for hydrogen peroxide detection in an alkaline solution, showing a low detection limit of 17.3 μM, a linear range up to 200 μM, and a sensitivity of 0.77 μA μM−1 cm−2. These notable results and comparable performance with the literature suggest that the electrochemical biosensor exhibit promising potential for a wide range of H2O2 detection.

Authors with CRIS profile

Anca Valentina Mazare Lehrstuhl für Werkstoffwissenschaften (Korrosion und Oberflächentechnik)

Involved external institutions

Pakistan Institute of Engineering & Applied Sciences (PIEAS) PK Pakistan (PK) Quaid-i-Azam University Islamabad PK Pakistan (PK)

How to cite

APA:

Nasir, A., Khalid, S., Mazare, A.V., & Yasin, T. (2023). Non-enzymatic hydrogen peroxide detection on a novel nanohybrid composite of chitosan and grafted graphene oxide. Materials Research Bulletin, 167. https://doi.org/10.1016/j.materresbull.2023.112427

MLA:

Nasir, Amara, et al. "Non-enzymatic hydrogen peroxide detection on a novel nanohybrid composite of chitosan and grafted graphene oxide." Materials Research Bulletin 167 (2023).

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