1
|
Weerasinghe J, Li W, Zhou R, Zhou R, Gissibl A, Sonar P, Speight R, Vasilev K, Ostrikov K(K. Bactericidal Silver Nanoparticles by Atmospheric Pressure Solution Plasma Processing. Nanomaterials (Basel) 2020; 10:nano10050874. [PMID: 32369954 PMCID: PMC7279381 DOI: 10.3390/nano10050874] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/20/2020] [Accepted: 04/22/2020] [Indexed: 01/10/2023]
Abstract
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.
Collapse
Affiliation(s)
- Janith Weerasinghe
- School of Chemistry and Physics, Queensland University of Technology, Brisbane 4000, Queensland, Australia; (P.S.); (K.O.)
- Centre for Materials Science, Queensland University of Technology, Brisbane 4000, Queensland, Australia
- Correspondence: ; Tel.: +61-481979488
| | - Wenshao Li
- School of Biology and Environmental Science, Queensland University of Technology, Brisbane 4000, Queensland, Australia; (W.L.); (A.G.); (R.S.)
| | - Rusen Zhou
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, Brisbane 4000, Queensland, Australia;
| | - Renwu Zhou
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney 2006, New South Wales, Australia;
| | - Alexander Gissibl
- School of Biology and Environmental Science, Queensland University of Technology, Brisbane 4000, Queensland, Australia; (W.L.); (A.G.); (R.S.)
| | - Prashant Sonar
- School of Chemistry and Physics, Queensland University of Technology, Brisbane 4000, Queensland, Australia; (P.S.); (K.O.)
- Centre for Materials Science, Queensland University of Technology, Brisbane 4000, Queensland, Australia
| | - Robert Speight
- School of Biology and Environmental Science, Queensland University of Technology, Brisbane 4000, Queensland, Australia; (W.L.); (A.G.); (R.S.)
| | - Krasimir Vasilev
- School of Engineering, University of South Australia, Adelaide 5001, South Australia, Australia;
| | - Kostya (Ken) Ostrikov
- School of Chemistry and Physics, Queensland University of Technology, Brisbane 4000, Queensland, Australia; (P.S.); (K.O.)
- Centre for Materials Science, Queensland University of Technology, Brisbane 4000, Queensland, Australia
| |
Collapse
|