Formation and antibacterial action of Pt and Pd nanoparticles sputtered into liquid
- Author(s): Marek Staszek 1 ; Jakub Siegel 1 ; Kateřina Kolářová 1 ; Silvie Rimpelová 2 ; Václav Švorčík 1
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View affiliations
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Affiliations:
1:
Department of Solid State Engineering, Institute of Chemical Technology, 166 28 Prague, Czech Republic;
2: Department of Biochemistry and Microbiology, Institute of Chemical Technology, 166 28 Prague, Czech Republic
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Affiliations:
1:
Department of Solid State Engineering, Institute of Chemical Technology, 166 28 Prague, Czech Republic;
- Source:
Volume 9, Issue 11,
November 2014,
p.
778 – 781
DOI: 10.1049/mnl.2014.0345 , Online ISSN 1750-0443
A report is presented on the antibacterial activity of platinum and palladium nanoparticles (NPs) prepared by direct sputtering into glycerol. Prepared platinum faceted NPs (n = 500) with the diameter of (1.7 ± 0.3) nm and palladium faceted NPs (n = 500) with the diameter of (2.4 ± 0.4) nm were investigated. The size and shape of NPs were studied by transmission electron microscopy. Moreover, the size and its distribution were studied by dynamic light scattering. The concentration of metal NPs in prepared solutions was determined by atomic absorption spectroscopy. The optical properties of aqueous NP solutions were studied by UV–vis absorption spectroscopy. Antibacterial properties were tested against two common pollutants (E. coli DBM 3138, a Gram-negative bacteria and S. epidermidis DBM 3179, a Gram-positive bacteria). Owing to the increasing resistance of bacteria strains to common antibiotics, this study may provide an alternative way to fight these pollutants.
Inspec keywords: sputtering; nanofabrication; nanoparticles; particle size; platinum; visible spectra; atomic absorption spectroscopy; transmission electron microscopy; antibacterial activity; ultraviolet spectra; palladium; nanobiotechnology
Other keywords: glycerol; metal nanoparticle concentration; antibiotics; UV-vis absorption spectroscopy; antibacterial activity; Pt; atomic absorption spectroscopy; direct sputtering; pollutants; Pd; platinum nanoparticles; TEM; palladium nanoparticles; Gram-positive bacteria; nanoparticle size; transmission electron microscopy; S. epidermidis DBM 3179; bacteria strain resistance; aqueous nanoparticle solutions; nanoparticle shape; E. coli DBM 3138; optical properties; dynamic light scattering; Gram-negative bacteria
Subjects: Methods of nanofabrication and processing; Optical properties of metals and metallic alloys (thin films, low-dimensional and nanoscale structures); Atom-, molecule-, and ion-surface impact and interactions; Structure of solid clusters, nanoparticles, nanotubes and nanostructured materials; Visible and ultraviolet spectra of metals, semimetals, and alloys; Electromagnetic radiation spectrometry (chemical analysis)
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