0603635 - FZÚ 2025 RIV US eng J - Journal Article
Irimiciuc, Stefan Andrei - Grumezescu, V. - Holban, A. M. - Gherasim, O. - Chertopalov, Sergii - Vasile, B.S. - Prepelita, P. - Craciun, V. - Lančok, Ján
Phase tailoring of silver oxide thin films for improved antimicrobial activity.
Journal of Applied Physics. Roč. 136, č. 23 (2024), č. článku 235301. ISSN 0021-8979. E-ISSN 1089-7550
R&D Projects: GA MŠMT(CZ) EH22_008/0004596
Institutional support: RVO:68378271
Keywords : optical-properties * nanoparticles * oxidation * bacteria
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 2.7, year: 2023 ; AIS: 0.579, rok: 2023
Method of publishing: Open access
DOI: https://doi.org/10.1063/5.0216723

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.
Permanent Link: https://hdl.handle.net/11104/0361668
 
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Dataset for Silver oxide phase tailoring for improved antimicrobial activity