Phase tailoring of silver oxide thin films for improved antimicrobial activity

This paper reports on routes to control the silver oxide phase and morphology in thin films to enhance their antimicrobial efficacy. The Ag:O atomic ratio was tailored during the pulsed laser deposition process by adjusting the O2 environment, and thus, a wide range of silver oxide phases ranging from Ag to AgxO was achieved. Simultaneously, the morphology was controlled from island-like (Volmer–Weber) formations to nanoparticle arrays, ultimately culminating in cauliflower-like dendrite structures. Through this synergistic approach, enhancing the oxygen content while expanding the active surface area yielded optimal enhancement of the antimicrobial properties. Remarkably, films deposited at elevated O2 pressures exhibited heightened inhibitory effects against bacterial biofilms, with films featuring nanoparticle morphology demonstrating notable antistaphylococcal efficacy.

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Publication Details

Journal
Journal of Applied Physics
Published
2024-12-18
DOI
https://doi.org/10.1063/5.0216723
Citations
1
Primary Topic
Nanoparticles: synthesis and applications
Type
article
Field-Weighted Citation Impact
0.12

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article

Phase tailoring of silver oxide thin films for improved antimicrobial activity

Oana Gherasim, Sergii Chertopalov, Bogdan Ştefan Vasile, J. Lančok et al.
1 citations
Journal of Applied Physics
Nanoparticles: synthesis and applications
0.12
article

Phase tailoring of silver oxide thin films for improved antimicrobial activity

Oana Gherasim, Sergii Chertopalov, Bogdan Ştefan Vasile, J. Lančok, Ștefan Andrei Irimiciuc, Alina Maria Holban, V. Crăciun, Petronela Garoi, Valentina Grumezescu
article en
1 citations

Abstract

This paper reports on routes to control the silver oxide phase and morphology in thin films to enhance their antimicrobial efficacy. The Ag:O atomic ratio was tailored during the pulsed laser deposition process by adjusting the O2 environment, and thus, a wide range of silver oxide phases ranging from Ag to AgxO was achieved. Simultaneously, the morphology was controlled from island-like (Volmer–Weber) formations to nanoparticle arrays, ultimately culminating in cauliflower-like dendrite structures. Through this synergistic approach, enhancing the oxygen content while expanding the active surface area yielded optimal enhancement of the antimicrobial properties. Remarkably, films deposited at elevated O2 pressures exhibited heightened inhibitory effects against bacterial biofilms, with films featuring nanoparticle morphology demonstrating notable antistaphylococcal efficacy.

Journal of Applied PhysicsVol. 136(23)
University of Science and Technology (YE), University of Bucharest (RO), Czech Academy of Sciences (CZ), Academia Oamenilor de Știință din România (RO), Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering (RO), National Institute for Laser Plasma and Radiation Physics (RO), FZU ‒ Institute of Physics of the Academy of Sciences of the Czech Republic (CZ), Extreme Light Infrastructure - Nuclear Physics (RO), Universitatea Națională de Știință și Tehnologie Politehnica București (RO)
Ministerstvo Školství, Mládeže a Tělovýchovy
Life below water
Openalex Percentile: Top 57%
Nanoparticles: synthesis and applications
0.12
DOIOpen Access PDFOpenAlex
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