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Investigations on the enhanced anti-microbial activity of one step synthesized ZnO, WO3, and rGO nano particles and fabrication of rGO nano electrode for EMG biomedical application

Authors
  • Subramaniam, Kavitha
  • Mohan, Konganapuram S.
  • Bhoopesh, Rajappan K.
  • Gunavathy, Kugalur V.
Type
Published Article
Journal
Zeitschrift für Physikalische Chemie
Publisher
De Gruyter
Publication Date
Mar 07, 2024
Volume
238
Issue
10
Pages
1959–1987
Identifiers
DOI: 10.1515/zpch-2023-0411
Source
De Gruyter
Keywords
License
Yellow

Abstract

The proposed study aims to synthesize ZnO, WO3, and rGO nano particles (NPs) using simple and effective chemical reduction technique and to investigate its biomedical applications. According to the XRD results, synthesized NPs had hexagonal, monoclinic, and cubic crystal forms. The FESEM micro image shows sheet-like structure for rGO NPs, an algal crystal structure for ZnO, and a bulk cluster formation for WO3 NPs. The value of band gap was found to be 5.75, 5.37 and 3.01 eV for ZnO, WO3, and rGO NPs respectively. The presence of diverse functional groups in the produced NPs was verified using Fourier-transform infrared spectroscopy. Investigations against different microorganisms indicated an augmentation in the antibacterial activity for ZnO and WO3 NPs. Electrodes coated with rGO NP were made and discovered to be effective in collecting human biomedical data more effectively. The performance of rGO NP coated electrodes was compared using a development board for electromyography analysis along with an android application for monitoring purposes. The quality of the signal, the ratio between the signal and the background noise, as well as the level of impedance between the electrode and the skin was observed to be better than conventional electrodes.

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