Arrays of ultra-thin selenium-doped zirconium-anodic-oxide nanorods as potential antibacterial coatings

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dc.contributor.authorKamnev, Kirillcs
dc.contributor.authorBendová, Máriacs
dc.contributor.authorFohlerová, Zdenkacs
dc.contributor.authorFialová, Tatianacs
dc.contributor.authorMartyniuk, Olehcs
dc.contributor.authorPrášek, Jancs
dc.contributor.authorČíhalová, Kristýnacs
dc.contributor.authorMozalev, Alexandercs
dc.coverage.issue5cs
dc.coverage.volume9cs
dc.date.accessioned2025-08-01T07:00:06Z
dc.date.available2025-08-01T07:00:06Z
dc.date.issued2025-01-17cs
dc.description.abstractTwo characteristic types of extraordinarily thin upright-standing ZrO2-based nanorods self-aligned on a substrate, differing in diameters (20/30 nm), lengths (90/120 nm), and population densities (1.1/4.6 × 1010 cm2), were synthesized via the porous-anodic-alumina (PAA)-assisted anodization of Zr in 1.5 M selenic acid followed by selective PAA dissolution. A needle-like shape was achieved due to the unique formation of zirconium anodic oxide in extremely thin nanopores that grow only in selenic acid. The SEM, XPS, and Raman spectroscopy analyses revealed that the nanorods feature a core/shell structure in which the core is stoichiometric amorphous ZrO2, and the shell is 6 nm thick hydroxylated zirconium dioxide ZrO2x(OH)2x mixed with Al2O3. The core and shell incorporated electrolyte-derived selenate (SeO42) ions, which replace up to 1% of the O2 ions in the nanorod surface layer. Besides, nanoparticles of elemental Se were deposited on the top of rods during anodic polarization. A model was developed for the cooperative ionic transport and electrochemical and solid-state reactions during the PAA-assisted growth of zirconium oxide in selenic acid. The two Se-doped top-decorated zirconium-oxide nanorod arrays were examined as potential antibacterial nanomaterials toward G-negative E. coli and G-positive S. aureus, using direct SEM observations of the bacteria–surface interfaces and carrying out the modified Japanese Industrial Standard test for antimicrobial activity and efficacy, JIS Z 2801. While specific differences in interaction with each type of bacteria were observed, both nanostructures caused a significant harmful synergetic effect on the bacteria, acting as non-metallic (Se) ion-releasing bactericidal coatings along with repellent and contact-killing activities arising from extraordinary needle-like nanoscale surface engineering.en
dc.formattextcs
dc.format.extent866-883cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMATERIALS CHEMISTRY FRONTIERS. 2025, vol. 9, issue 5, p. 866-883.en
dc.identifier.doi10.1039/d4qm01081gcs
dc.identifier.issn2052-1537cs
dc.identifier.orcid0000-0001-8999-5363cs
dc.identifier.orcid0000-0002-1232-2301cs
dc.identifier.orcid0000-0001-7344-0304cs
dc.identifier.orcid0000-0003-1228-5712cs
dc.identifier.orcid0000-0002-9505-5359cs
dc.identifier.other196980cs
dc.identifier.researcheridA-6893-2013cs
dc.identifier.researcheridE-2387-2012cs
dc.identifier.researcheridH-3928-2012cs
dc.identifier.scopus57193340784cs
dc.identifier.scopus7003947942cs
dc.identifier.scopus6601972151cs
dc.identifier.urihttps://hdl.handle.net/11012/255380
dc.language.isoencs
dc.publisherROYAL SOC CHEMISTRYcs
dc.relation.ispartofMATERIALS CHEMISTRY FRONTIERScs
dc.relation.urihttps://pubs.rsc.org/en/content/articlelanding/2025/qm/d4qm01081gcs
dc.rightsCreative Commons Attribution-NonCommercial 3.0 Unportedcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2052-1537/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc/3.0/cs
dc.subjectanodizingen
dc.subjectzirconium oxideen
dc.subjectbiomedical applicationen
dc.titleArrays of ultra-thin selenium-doped zirconium-anodic-oxide nanorods as potential antibacterial coatingsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-196980en
sync.item.dbtypeVAVen
sync.item.insts2025.08.01 09:00:06en
sync.item.modts2025.08.01 08:33:36en
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav mikroelektronikycs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Sdílená laboratoř RP1cs
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