Bactericidal Silver Nanoparticles by Atmospheric Pressure Solution Plasma Processing

Silver nanoparticles have applications in plasmonics, medicine, catalysis and electronics. We report a simple, cost-effective, facile and reproducible technique to synthesise silver nanoparticles via plasma-induced non-equilibrium liquid chemistry with the absence of a chemical reducing agent. Silve...

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Main Authors: Janith Weerasinghe, Wenshao Li, Rusen Zhou, Renwu Zhou, Alexander Gissibl, Prashant Sonar, Robert Speight, Krasimir Vasilev, Kostya (Ken) Ostrikov
Format: Article
Language:English
Published: MDPI AG 2020-05-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/10/5/874
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author Janith Weerasinghe
Wenshao Li
Rusen Zhou
Renwu Zhou
Alexander Gissibl
Prashant Sonar
Robert Speight
Krasimir Vasilev
Kostya (Ken) Ostrikov
author_facet Janith Weerasinghe
Wenshao Li
Rusen Zhou
Renwu Zhou
Alexander Gissibl
Prashant Sonar
Robert Speight
Krasimir Vasilev
Kostya (Ken) Ostrikov
author_sort Janith Weerasinghe
collection DOAJ
description Silver nanoparticles have applications in plasmonics, medicine, catalysis and electronics. We report a simple, cost-effective, facile and reproducible technique to synthesise silver nanoparticles via plasma-induced non-equilibrium liquid chemistry with the absence of a chemical reducing agent. Silver nanoparticles with tuneable sizes from 5.4 to 17.8 nm are synthesised and characterised using Transmission Electron Microscopy (TEM) and other analytic techniques. A mechanism for silver nanoparticle formation is also proposed. The antibacterial activity of the silver nanoparticles was investigated with gram-positive and gram-negative bacteria. The inhibition of both bacteria types was observed. This is a promising alternative method for the instant synthesis of silver nanoparticles, instead of the conventional chemical reduction route, for numerous applications.
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spelling doaj.art-5480fa5fcbb9462fbaa026dc5d5fa3592023-11-19T23:14:12ZengMDPI AGNanomaterials2079-49912020-05-0110587410.3390/nano10050874Bactericidal Silver Nanoparticles by Atmospheric Pressure Solution Plasma ProcessingJanith Weerasinghe0Wenshao Li1Rusen Zhou2Renwu Zhou3Alexander Gissibl4Prashant Sonar5Robert Speight6Krasimir Vasilev7Kostya (Ken) Ostrikov8School of Chemistry and Physics, Queensland University of Technology, Brisbane 4000, Queensland, AustraliaSchool of Biology and Environmental Science, Queensland University of Technology, Brisbane 4000, Queensland, AustraliaSchool of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane 4000, Queensland, AustraliaSchool of Chemical and Biomolecular Engineering, The University of Sydney, Sydney 2006, New South Wales, AustraliaSchool of Biology and Environmental Science, Queensland University of Technology, Brisbane 4000, Queensland, AustraliaSchool of Chemistry and Physics, Queensland University of Technology, Brisbane 4000, Queensland, AustraliaSchool of Biology and Environmental Science, Queensland University of Technology, Brisbane 4000, Queensland, AustraliaSchool of Engineering, University of South Australia, Adelaide 5001, South Australia, AustraliaSchool of Chemistry and Physics, Queensland University of Technology, Brisbane 4000, Queensland, AustraliaSilver nanoparticles have applications in plasmonics, medicine, catalysis and electronics. We report a simple, cost-effective, facile and reproducible technique to synthesise silver nanoparticles via plasma-induced non-equilibrium liquid chemistry with the absence of a chemical reducing agent. Silver nanoparticles with tuneable sizes from 5.4 to 17.8 nm are synthesised and characterised using Transmission Electron Microscopy (TEM) and other analytic techniques. A mechanism for silver nanoparticle formation is also proposed. The antibacterial activity of the silver nanoparticles was investigated with gram-positive and gram-negative bacteria. The inhibition of both bacteria types was observed. This is a promising alternative method for the instant synthesis of silver nanoparticles, instead of the conventional chemical reduction route, for numerous applications.https://www.mdpi.com/2079-4991/10/5/874silver nanoparticlesAC – DBD plasmaplasma production of nanoparticles
spellingShingle Janith Weerasinghe
Wenshao Li
Rusen Zhou
Renwu Zhou
Alexander Gissibl
Prashant Sonar
Robert Speight
Krasimir Vasilev
Kostya (Ken) Ostrikov
Bactericidal Silver Nanoparticles by Atmospheric Pressure Solution Plasma Processing
Nanomaterials
silver nanoparticles
AC – DBD plasma
plasma production of nanoparticles
title Bactericidal Silver Nanoparticles by Atmospheric Pressure Solution Plasma Processing
title_full Bactericidal Silver Nanoparticles by Atmospheric Pressure Solution Plasma Processing
title_fullStr Bactericidal Silver Nanoparticles by Atmospheric Pressure Solution Plasma Processing
title_full_unstemmed Bactericidal Silver Nanoparticles by Atmospheric Pressure Solution Plasma Processing
title_short Bactericidal Silver Nanoparticles by Atmospheric Pressure Solution Plasma Processing
title_sort bactericidal silver nanoparticles by atmospheric pressure solution plasma processing
topic silver nanoparticles
AC – DBD plasma
plasma production of nanoparticles
url https://www.mdpi.com/2079-4991/10/5/874
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