Green synthesis of copper oxide nanoparticles using Amaranthus caudatus leaf extract and its non-enzymatic glucose sensor application

Ansari, PMY and Muthukrishnan, RM and Khan, RI and Vedhi, C and Kader, SMA (2023) Green synthesis of copper oxide nanoparticles using Amaranthus caudatus leaf extract and its non-enzymatic glucose sensor application. In: Applied Physics A: Materials Science and Processing, 129 (11).

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Abstract

Due to environmental concerns, the synthesis of metal and metal oxide nanomaterials has increasingly relied on non-hazardous reducing agents. In this study, we focused on utilizing a green reducing agent, namely Amaranthus caudatus leaf extract, to synthesize copper oxide nanoparticles (CuO NPs). The X-ray diffraction (XRD) analysis revealed that the synthesized CuO NPs exhibited a well-defined crystalline structure, with an average crystallite size of 33 nm determined using the Debye–Scherrer equation. To detect various sugars (fructose, glucose, lactose, mannose, and sucrose), a cyclic voltammetry (CV) technique was employed, with a linear detection range spanning from 1 to 10 mM. The sensitivity values for the sugars were calculated based on the slope of the linearity curve. Notably, the CuO NPs exhibited high sensitivity towards glucose sugar, with sensitivity values of 450 μA mM−1 cm−2. These findings suggest that the synthesized CuO NPs hold great promise as an effective material for applications in sugar sensing. Graphical abstract: [Figure not available: see fulltext.] © 2023, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.

Item Type:	Journal Article
Publication:	Applied Physics A: Materials Science and Processing
Publisher:	Springer Science and Business Media Deutschland GmbH
Additional Information:	The copyright for this article belongs to the Springer Science and Business Media Deutschland GmbH.
Keywords:	Crystallite size; Cyclic voltammetry; Glucose; Glucose sensors; Nanoparticles; Reducing agents; Synthesis (chemical); X ray diffraction analysis, Amaranthus caudatus; Copper oxide nanoparticles; Cu; Green synthesis; Leaf extracts; Non-enzymatic glucose sensors; Sensitivity values; Structural; Synthesised; X- ray diffractions, Copper oxides
Department/Centre:	Division of Chemical Sciences > Organic Chemistry
Date Deposited:	14 Dec 2023 03:24
Last Modified:	14 Dec 2023 03:24
URI:	https://eprints.iisc.ac.in/id/eprint/83376

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