Antibacterial properties of palladium nanostructures sputtered on polyethylene naphthalate

M. Polívková, M. Valová, J. Siegel, S. Rimpelová, T. Hubáček, O. Lyutakov, V. Švorčík

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Resistance of pathogenic bacteria to conventional antibiotics has emerged in recent years as a major problem for public health. In order to overcome this problem, non-conventional antimicrobial agents have recently been under investigation. Pd nanolayers of variable thicknesses ranging from 0.4 to 22.4 nm were prepared by sputtering on polyethylene naphthalate (PEN). Low-temperature annealing was applied to transform these nanolayers into discrete nanoislands homogeneously distributed over the surface of the underlying polymer. The antibacterial properties of these composites were evaluated by drip test using Gram-positive and Gram-negative bacteria as model strains. Inductively coupled plasma, X-ray photoelectron spectroscopy, and atomic force microscopy were used to outline the method of bacterial inhibition by Pd nanostructures. We found that the antibacterial effect of the Pd/PEN composites might be caused by both (i) release of Pd into a physiological solution and (ii) direct contact of bacteria with the Pd/PEN composites. Our results suggest that the samples coated with a 22.4 nm thick Pd layer exhibited significantly enhanced antibacterial properties than the thinner Pd layers.

Original languageEnglish
Pages (from-to)73767-73774
Number of pages8
JournalRSC Advances
Volume5
Issue number90
DOIs
Publication statusPublished - 24 Aug 2015
Externally publishedYes

Fingerprint

Palladium
Polyethylene
Polyethylenes
Nanostructures
Bacteria
Composite materials
Antimicrobial agents
Inductively coupled plasma
Public health
Antibiotics
Anti-Infective Agents
Contacts (fluid mechanics)
Sputtering
Atomic force microscopy
Polymers
X ray photoelectron spectroscopy
Annealing
Anti-Bacterial Agents
Temperature

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Polívková, M., Valová, M., Siegel, J., Rimpelová, S., Hubáček, T., Lyutakov, O., & Švorčík, V. (2015). Antibacterial properties of palladium nanostructures sputtered on polyethylene naphthalate. RSC Advances, 5(90), 73767-73774. https://doi.org/10.1039/c5ra09297c

Antibacterial properties of palladium nanostructures sputtered on polyethylene naphthalate. / Polívková, M.; Valová, M.; Siegel, J.; Rimpelová, S.; Hubáček, T.; Lyutakov, O.; Švorčík, V.

In: RSC Advances, Vol. 5, No. 90, 24.08.2015, p. 73767-73774.

Research output: Contribution to journalArticle

Polívková, M, Valová, M, Siegel, J, Rimpelová, S, Hubáček, T, Lyutakov, O & Švorčík, V 2015, 'Antibacterial properties of palladium nanostructures sputtered on polyethylene naphthalate', RSC Advances, vol. 5, no. 90, pp. 73767-73774. https://doi.org/10.1039/c5ra09297c
Polívková M, Valová M, Siegel J, Rimpelová S, Hubáček T, Lyutakov O et al. Antibacterial properties of palladium nanostructures sputtered on polyethylene naphthalate. RSC Advances. 2015 Aug 24;5(90):73767-73774. https://doi.org/10.1039/c5ra09297c
Polívková, M. ; Valová, M. ; Siegel, J. ; Rimpelová, S. ; Hubáček, T. ; Lyutakov, O. ; Švorčík, V. / Antibacterial properties of palladium nanostructures sputtered on polyethylene naphthalate. In: RSC Advances. 2015 ; Vol. 5, No. 90. pp. 73767-73774.
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