Generation, characterization and application of atmospheric pressure plasma jet

The development of a non-thermal plasma jet with a capillary configuration working at atmospheric pressure is reported in this paper. The plasma jet is powered by a power source with frequency of several kilohertz. The working gas is argon. The plasma obtained has been characterized by optical emiss...

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Main Authors:	Shrestha, R., Subedi, D.P., Gurung, J.P., C., S. Wong
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2016
Online Access:	http://journalarticle.ukm.my/10389/ http://journalarticle.ukm.my/10389/ http://journalarticle.ukm.my/10389/1/15%20R.%20Shrestha.pdf

id	ukm-10389
recordtype	eprints
spelling	ukm-103892017-05-22T01:08:35Z http://journalarticle.ukm.my/10389/ Generation, characterization and application of atmospheric pressure plasma jet Shrestha, R. Subedi, D.P. Gurung, J.P. C., S. Wong The development of a non-thermal plasma jet with a capillary configuration working at atmospheric pressure is reported in this paper. The plasma jet is powered by a power source with frequency of several kilohertz. The working gas is argon. The plasma obtained has been characterized by optical emission spectroscopic measurements and electrical measurements of the discharge using voltage and current probes. The electron temperature has been estimated by using the modified Boltzmann plot method utilizing the Ar 4p-4s transition. The electron temperatures at various positions along the plasma jet length have been obtained and it is found that the electron temperature decreases at position further from orifice. The electron density has been estimated from current and voltage measurements using the power balance method. The effects of gas flow rate, applied voltage and frequency on the characteristics of the plasma jet have also been investigated. The applications of the atmospheric pressure plasma jet (APPJ) developed to modify the surface properties of Polyethyleneterephthalate (PET) and polycarbonate (PC) have been tested. Our results showed that the atmospheric pressure non-thermal plasma jet can be effectively used to enhance the surface wettability and surface energy of the PET and PC. The plasma jet has also been tested for inactivation of prokaryotic cells (Escherichia coli, Staphylococcus aureus). In the case of E. coli, better than 4 log10 reduction can be achieved. The effect of plasma jet on the pH of cell culture medium has suggested that the plasma species, particularly the electrons, are solely responsible for the effect of inactivation of living cells. Penerbit Universiti Kebangsaan Malaysia 2016-11 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/10389/1/15%20R.%20Shrestha.pdf Shrestha, R. and Subedi, D.P. and Gurung, J.P. and C., S. Wong (2016) Generation, characterization and application of atmospheric pressure plasma jet. Sains Malaysiana, 45 (11). pp. 1689-1696. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid45bil11_2016/KandunganJilid45Bil11_2016.htm
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	The development of a non-thermal plasma jet with a capillary configuration working at atmospheric pressure is reported in this paper. The plasma jet is powered by a power source with frequency of several kilohertz. The working gas is argon. The plasma obtained has been characterized by optical emission spectroscopic measurements and electrical measurements of the discharge using voltage and current probes. The electron temperature has been estimated by using the modified Boltzmann plot method utilizing the Ar 4p-4s transition. The electron temperatures at various positions along the plasma jet length have been obtained and it is found that the electron temperature decreases at position further from orifice. The electron density has been estimated from current and voltage measurements using the power balance method. The effects of gas flow rate, applied voltage and frequency on the characteristics of the plasma jet have also been investigated. The applications of the atmospheric pressure plasma jet (APPJ) developed to modify the surface properties of Polyethyleneterephthalate (PET) and polycarbonate (PC) have been tested. Our results showed that the atmospheric pressure non-thermal plasma jet can be effectively used to enhance the surface wettability and surface energy of the PET and PC. The plasma jet has also been tested for inactivation of prokaryotic cells (Escherichia coli, Staphylococcus aureus). In the case of E. coli, better than 4 log10 reduction can be achieved. The effect of plasma jet on the pH of cell culture medium has suggested that the plasma species, particularly the electrons, are solely responsible for the effect of inactivation of living cells.
format	Article
author	Shrestha, R. Subedi, D.P. Gurung, J.P. C., S. Wong
spellingShingle	Shrestha, R. Subedi, D.P. Gurung, J.P. C., S. Wong Generation, characterization and application of atmospheric pressure plasma jet
author_facet	Shrestha, R. Subedi, D.P. Gurung, J.P. C., S. Wong
author_sort	Shrestha, R.
title	Generation, characterization and application of atmospheric pressure plasma jet
title_short	Generation, characterization and application of atmospheric pressure plasma jet
title_full	Generation, characterization and application of atmospheric pressure plasma jet
title_fullStr	Generation, characterization and application of atmospheric pressure plasma jet
title_full_unstemmed	Generation, characterization and application of atmospheric pressure plasma jet
title_sort	generation, characterization and application of atmospheric pressure plasma jet
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2016
url	http://journalarticle.ukm.my/10389/ http://journalarticle.ukm.my/10389/ http://journalarticle.ukm.my/10389/1/15%20R.%20Shrestha.pdf
first_indexed	2023-09-18T19:57:17Z
last_indexed	2023-09-18T19:57:17Z
_version_	1777406614125412352

Generation, characterization and application of atmospheric pressure plasma jet

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