Long-term stability of antibacterial TiN-Ag coatings deposited by combining cathodic arc evaporation and magnetron sputtering
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F25%3A00142588" target="_blank" >RIV/00216224:14310/25:00142588 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S2468023025020826" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2468023025020826</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.surfin.2025.107830" target="_blank" >10.1016/j.surfin.2025.107830</a>
Alternative languages
Result language
angličtina
Original language name
Long-term stability of antibacterial TiN-Ag coatings deposited by combining cathodic arc evaporation and magnetron sputtering
Original language description
Silver-containing titanium nitride coatings (TiN-Ag) are deposited in industrial conditions by combining cathodic arc evaporation of a titanium target and magnetron sputtering of a silver target in a reactive argon-nitrogen atmosphere. They are deposited on steel substrates with the prospect of producing innovative antibacterial surfaces for everyday objects that are frequently exposed to human hand contact. Two different silver concentrations are studied to assess their impact on the antibacterial efficacy and mechanical properties of the coating. The obtained coatings are made of a mixture of two crystalline phases, TiN and Ag, that are in the same cubic system. Metallic silver in the coating provides an efficient antibacterial effect against two bacterial strains, Staphylococcus aureus ATCC 6538P and Escherichia coli ATCC 8739. The antibacterial effect against E. coli ATCC 8739 is higher because the cell wall of S. aureus ATCC 6538P is thicker, making it more difficult to degrade and penetrate for silver ions. The long-term stability of the TiN-Ag coatings is evaluated by two different approaches. The first one uses specific equipment that simulates repetitive finger touches, and the second one consists in the attachment of coated steel samples to door handles for a two-month experiment in real-life conditions.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
<a href="/en/project/LM2023039" target="_blank" >LM2023039: R&D centre for plasma and nanotechnology surface modifications</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Surfaces and Interfaces
ISSN
2468-0230
e-ISSN
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Volume of the periodical
75
Issue of the periodical within the volume
October
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
9
Pages from-to
107830
UT code for WoS article
001598711900005
EID of the result in the Scopus database
2-s2.0-105019771779