2024
A Long-Term Study on the Bactericidal Effect of ZrN-Cu Nanostructured Coatings Deposited by an Industrial Physical Vapor Deposition System
BEHRANGI, Sahand; Eva STAŇKOVÁ; Ivo SEDLÁČEK; Lucie ŠIMONÍKOVÁ; Pavel SOUČEK et al.Základní údaje
Originální název
A Long-Term Study on the Bactericidal Effect of ZrN-Cu Nanostructured Coatings Deposited by an Industrial Physical Vapor Deposition System
Autoři
BEHRANGI, Sahand; Eva STAŇKOVÁ; Ivo SEDLÁČEK; Lucie ŠIMONÍKOVÁ; Pavel SOUČEK; Vilma BURŠÍKOVÁ; Vjačeslav SOCHORA; Karel NOVOTNÝ a Petr VAŠINA
Vydání
Nanomaterials, MDPI, 2024, 2079-4991
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
20506 Coating and films
Stát vydavatele
Švýcarsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 4.300
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/24:00135635
Organizační jednotka
Přírodovědecká fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
magnetron sputtering; Escherichia coli; door handles; bactericidal efficiency; ZrN-Cu coating
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 9. 7. 2025 13:10, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
ZrN-Cu coatings containing two different amounts of Cu (~11 at.% and ~25 at.%) were deposited using an industrial physical vapor deposition (PVD) system. The as-deposited coatings exhibited 100% bactericidal efficiency against Escherichia coli CCM 3988 for an exposure time of 40 min. Subsequently, the samples were attached onto our faculty’s door handles for six months to study the coatings’ long-term effectiveness and durability under actual operational conditions. The samples were periodically evaluated and it was observed that the coatings with 25 at.% Cu performed better than the ones with 11 at.% Cu. For example, following 15 days of being touched, the bactericidal effectiveness of the sample containing 25 at.% Cu dropped to 65% while it fell to 42% for the sample containing 11 at.%. After 6 months, however, both samples showed bactericidal efficiency of ~16–20%. The bactericidal efficiency of the samples touched for 6 months was successfully restored by polishing them. Furthermore, a group of samples was kept untouched and was also evaluated. The untouched samples with Cu content of ~25 at.% did not show any drop in their bactericidal properties after 6 months. ZrN-Cu coatings were concluded to be promising materials for self-sanitizing application on high-touch surfaces.
Návaznosti
| MUNI/A/1575/2023, interní kód MU |
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| 90239, velká výzkumná infrastruktura |
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