He-Plasma Jet Generation and Its Application for E. coli Sterilization
Atmospheric pressure plasma jet (APPJ) is a promising technique for the sterilization of pathogenic microorganisms in an ambient environment. In this work, a helium-APPJ was generated by double dielectric barrier discharge and applied to the sterilization of model microorganism in air and water. Dis...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Journal of Spectroscopy |
| Online Access: | http://dx.doi.org/10.1155/2021/6671531 |
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| _version_ | 1832565881171869696 |
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| author | Tiejian Liu Yuxuan Zeng Xin Xue Yinyi Sui Yingying Liang Fushan Wang Fada Feng |
| author_facet | Tiejian Liu Yuxuan Zeng Xin Xue Yinyi Sui Yingying Liang Fushan Wang Fada Feng |
| author_sort | Tiejian Liu |
| collection | DOAJ |
| description | Atmospheric pressure plasma jet (APPJ) is a promising technique for the sterilization of pathogenic microorganisms in an ambient environment. In this work, a helium-APPJ was generated by double dielectric barrier discharge and applied to the sterilization of model microorganism in air and water. Discharge characteristics (including waveform and frequency of applied voltage), jet properties (such as feed gas flow rate, jet length, thermal effect, and optic emission spectra), and sterilization performance (in terms of clear/sterilized area, size of plaques, and sterilization efficiency) were investigated. Homogeneous helium plasma jet was generated in an energy-efficient way (18 kHz, 6 kV, 0.08 W) with a 19 mm jet and limited heating. The He-APPJ achieved good sterilization performances within very short treatment time (as short as 30 s). For surface sterilization, the area of clear zone and size of the plaque were 1809 mm2 and 48 mm, respectively, within 5 min treatment. For water sterilization, 99.8% sterilization efficiency was achieved within 5 min treatment. The optic emission spectra suggest that active species such as excited molecules, ions, and radicals were produced in the He-APPJ. The as-produced active species played important roles in the sterilization process. |
| format | Article |
| id | doaj-art-bece2be3fc7345ac858a50e6dd970bd8 |
| institution | Kabale University |
| issn | 2314-4920 2314-4939 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Spectroscopy |
| spelling | doaj-art-bece2be3fc7345ac858a50e6dd970bd82025-02-03T01:06:16ZengWileyJournal of Spectroscopy2314-49202314-49392021-01-01202110.1155/2021/66715316671531He-Plasma Jet Generation and Its Application for E. coli SterilizationTiejian Liu0Yuxuan Zeng1Xin Xue2Yinyi Sui3Yingying Liang4Fushan Wang5Fada Feng6Department of Neurosurgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, ChinaShenzhen Engineering Center for the Fabrication of Two-Dimensional Atomic Crystals, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, ChinaSchool of Chemistry and Environment, Jiaying University, Meizhou 514015, ChinaSchool of Chemistry and Environment, Jiaying University, Meizhou 514015, ChinaSchool of Chemistry and Environment, Jiaying University, Meizhou 514015, ChinaSchool of Chemistry and Environment, Jiaying University, Meizhou 514015, ChinaSchool of Chemistry and Environment, Jiaying University, Meizhou 514015, ChinaAtmospheric pressure plasma jet (APPJ) is a promising technique for the sterilization of pathogenic microorganisms in an ambient environment. In this work, a helium-APPJ was generated by double dielectric barrier discharge and applied to the sterilization of model microorganism in air and water. Discharge characteristics (including waveform and frequency of applied voltage), jet properties (such as feed gas flow rate, jet length, thermal effect, and optic emission spectra), and sterilization performance (in terms of clear/sterilized area, size of plaques, and sterilization efficiency) were investigated. Homogeneous helium plasma jet was generated in an energy-efficient way (18 kHz, 6 kV, 0.08 W) with a 19 mm jet and limited heating. The He-APPJ achieved good sterilization performances within very short treatment time (as short as 30 s). For surface sterilization, the area of clear zone and size of the plaque were 1809 mm2 and 48 mm, respectively, within 5 min treatment. For water sterilization, 99.8% sterilization efficiency was achieved within 5 min treatment. The optic emission spectra suggest that active species such as excited molecules, ions, and radicals were produced in the He-APPJ. The as-produced active species played important roles in the sterilization process.http://dx.doi.org/10.1155/2021/6671531 |
| spellingShingle | Tiejian Liu Yuxuan Zeng Xin Xue Yinyi Sui Yingying Liang Fushan Wang Fada Feng He-Plasma Jet Generation and Its Application for E. coli Sterilization Journal of Spectroscopy |
| title | He-Plasma Jet Generation and Its Application for E. coli Sterilization |
| title_full | He-Plasma Jet Generation and Its Application for E. coli Sterilization |
| title_fullStr | He-Plasma Jet Generation and Its Application for E. coli Sterilization |
| title_full_unstemmed | He-Plasma Jet Generation and Its Application for E. coli Sterilization |
| title_short | He-Plasma Jet Generation and Its Application for E. coli Sterilization |
| title_sort | he plasma jet generation and its application for e coli sterilization |
| url | http://dx.doi.org/10.1155/2021/6671531 |
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