Thin antimicrobial silver, copper or zinc containing SiOx films on wood polymer composites (WPC) applied by atmospheric pressure plasma chemical vapour deposition (APCVD) and sol–gel technology

Gerullis, Sven; Pfuch, Andreas; Spange, Sebastian; Kettner, Florian; Plaschkies, Katharina; Küzün, Berrin; Kosmachev, P. V.; Volokitin, G. G.; Grünler, Bernd

doi:10.1007/s00107-017-1220-9

Cited by 21 publications

(13 citation statements)

References 36 publications

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“…XPS depth profile investigations on copper-enriched sol-gel films showed, in addition to the matrix elements silicon and oxygen and the embedded copper, certain amounts of carbon even in the depth of the films. Moreover, low amounts of nitrogen could be detected all over the sputter depth, which can be explained by an incomplete decomposition of the precursor, resulting in an incorporation of nitrate inside the film matrix [26].…”

Section: Xps Depth Profile Investigationsmentioning

confidence: 99%

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Antimicrobial Activity of a Novel Cu(NO3)2-Containing Sol–Gel Surface under Different Testing Conditions

et al. 2021

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In this study, assessment of the antimicrobial activity of a novel, plasma-cured 2.5% (w/v) Cu(NO3)2-containing sol–gel surface was performed. In contrast to state-of-the-art sol–gel coatings, the plasma curing led to a gradient in cross-linking with the highest values at the top of the coating. As a result, the coating behaved simultaneously hard, scratch-resistant, and tough, the latter due to the more flexible bulk of the coating toward the substrate. Further, the diffusion and permeation through the coating also increased toward the substrate. In our study, tests according to ISO 22196 showed antibacterial activity of the 2.5% (w/v) Cu(NO3)2-containing sol–gel surface against all bacterial strains tested, and we expanded the testing further using a “dry” evaluation without an aqueous contact phase, which confirmed the antimicrobial efficacy of the 2.5% (w/v) Cu(NO3)2-containing sol–gel surface. However, further investigation under exposure to soiling with the addition of 0.3% albumin, used to simulate organic load, led to a significant impairment in the antibacterial effect under both tested conditions. Furthermore, re-testing of the surface after disinfection with 70% ethanol led to a total loss of antibacterial activity. Our results showed that besides the mere application of an antimicrobial agent to a surface coating, it is also necessary to consider the future use of these surfaces in the experimental phase combining industry and science. Therefore, a number of tests corresponding to the utilization of the surface should be obligative on the basis of this assessment.

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Section: Xps Depth Profile Investigationsmentioning

confidence: 99%

“…detected all over the sputter depth, which can be explained by an incomplete decomposition of the precursor, resulting in an incorporation of nitrate inside the film matrix [26].…”

Section: Ftir Measurementsmentioning

confidence: 99%

Antimicrobial Activity of a Novel Cu(NO3)2-Containing Sol–Gel Surface under Different Testing Conditions

et al. 2021

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“…A completely different one-step process applicable for the deposition of Ag/plasma polymer antibacterial films was proposed by Zimmerman et al [ 137 ], Beier et al [ 138 ], and Gerullis et al [ 139 ]. These authors used an atmospheric pressure plasma chemical vapor deposition technique, in which a HMDSO precursor was introduced into the atmospheric pressure plasma, together with silver nitrate by a modified jet nozzle ( Figure 5 a).…”

Section: Antibacterial Ag/plasma Polymer Nanocompositesmentioning

confidence: 99%

State-of-the-Art, and Perspectives of, Silver/Plasma Polymer Antibacterial Nanocomposites

2018

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Urgent need for innovative and effective antibacterial coatings in different fields seems to have triggered the development of numerous strategies for the production of such materials. As shown in this short overview, plasma based techniques arouse considerable attention that is connected with the possibility to use these techniques for the production of advanced antibacterial Ag/plasma polymer coatings with tailor-made functional properties. In addition, the plasma-based deposition is believed to be well-suited for the production of novel multi-functional or stimuli-responsive antibacterial films.

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“…Microbial colonization of wooden materials is connected with health hazards due to the presence of pathogenic bacteria, molds, and their associated toxins (Gerullis et al 2018;Munir et al 2019). Bacteria and molds live in domestic, restaurant, medical, and industrial settings in association with surfaces made from natural and synthetic materials.…”

Section: Introductionmentioning

confidence: 99%

Bacterial and mold resistance of selected tropical wood species

Reinprecht

Vidholdová

Iždinský

2020

BioRes

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The biological resistance of 21 tropical wood species against bacteria and molds was studied. The gram-positive bacterium Staphylococcus aureus and the gram-negative bacterium Escherichia coli had none or negligible activity on surfaces of zebrano and maçaranduba (up to 1 ×106 CFU/mL), and they had negligible or medium activity on surfaces of macassar ebony, ovengol, santos rosewood, and iroko (from 1 ×106 up to 1 ×107 CFU/mL). These bacteria had high activity on surfaces of okoumé, tineo, doussié, makoré, and both reference woods, beech and Scots pine (usually over 1 ×107 CFU/mL). The mold growth activity (MGA) of Aspergillus niger and Penicillium brevicompactum was minimal on surfaces of ipé, yellow balau, macassar ebony, doussié, bubinga, and merbau, but it was strong on surfaces of okoumé, cerejeira, ovengol, wengé, sapelli, and both reference woods. When comparing individual biological tests of (a) bacterial and mold but also (b) bacterial, mold and rot with decaying fungi C. puteana and T. versicolor, no significant relationships were found. These results confirm that the bio-durability of woods is influenced not only by their molecular structure, but also by the attacking biological pest group.

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Thin antimicrobial silver, copper or zinc containing SiOx films on wood polymer composites (WPC) applied by atmospheric pressure plasma chemical vapour deposition (APCVD) and sol–gel technology

Cited by 21 publications

References 36 publications

Antimicrobial Activity of a Novel Cu(NO3)2-Containing Sol–Gel Surface under Different Testing Conditions

Antimicrobial Activity of a Novel Cu(NO3)2-Containing Sol–Gel Surface under Different Testing Conditions

State-of-the-Art, and Perspectives of, Silver/Plasma Polymer Antibacterial Nanocomposites

Bacterial and mold resistance of selected tropical wood species

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