The Electrical Characteristics of a Filamentary Discharge of Capillary Guided Corona Discharge Plasma Jet

Authors

  • Norhayati Mohd Nasir Faculty of Bioeconomic and Health Sciences Universiti Geomatika Malaysia, 54200 Kuala Lumpur, Malaysia
  • Seong Ling Yap Department of Physics, University of Malaya, 50603 Kuala Lumpur, Wilayah Persekutuan Kuala Lumpur, Malaysia
  • Lian Kuang Lim Department of Physics, University of Malaya, 50603 Kuala Lumpur, Wilayah Persekutuan Kuala Lumpur, Malaysia
  • Seong Shan Yap Department of Physics, Xiamen University, Jalan Sunsuria, Bandar Sunsuria, 43900 Sepang, Selangor Malaysia

DOI:

https://doi.org/10.11113/mjfas.v21n5.3532

Keywords:

Nonthermal Plasma, Plasma jet, Filamentary Discharge, Gas flow

Abstract

Nonthermal plasma jet device has been employed as a sterilisation means and effectively eradicate various microorganisms. Plasma jet device for this purpose has been most successful with a He or argon gas flow and often characterized by a long plasma plume. The expensive working gases such as helium and the gas control system however limits many practical applications. Capillary guided plasma jet (CGPJ) studied here employed at ambient air generated a constant funnel-shaped plasma plume of about 6 mm. The plasma jet plume has been optimised with different inner diameter capillary quartz tube and gap distance. The dissipative power was around 1.5 to 4.5 W. The effectiveness of the CGPJ in utilizing ambient air enables continuous sterilization and microbial inactivation processes, making it a promising approach for the treatment of medical devices and intricate implants. However, its direct application to living cells may pose safety concerns and may require further investigation and adjustment to enhance biocompatibility and safety for in vivo applications.

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Published

02-11-2025

Issue

Vol. 21 No. 5 (2025): September-October

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Article

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Copyright (c) 2025 Norhayati nasir, Professor, Dr, Dr

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