An Approach to Create Silver Containing Antibacterial Coatings by Use of Atmospheric Pressure Plasma Chemical Vapour Deposition (APCVD) and Combustion Chemical Vapour Deposition (CCVD) in an Economic Way

Abstract

The aim of this study was to test the possibilities of using APCVD and CCVD to create effective antibacterial coatings and to determine their antibacterial activity. SiOx‐layers were created by use of a hexamethyldisiloxane (HMDSO) precursor in combination with silver nitrate solution and silver nanoparticles as additives. A strong antibacterial effect of the APCVD and CCVD coated samples on an Escherichia coli (E. coli) strain could be shown. Layers obtained by CCVD showed a longer‐lasting antibacterial activity. The results were verified using a commercially available microbial cell viability assay basing on the measurement of bacterial adenosine triphosphate (ATP) or by counting of colony forming units (CFU) on agar plates.

Trends in surface engineering of biomaterials: atmospheric pressure plasma deposition of coatings for biomedical applications

“…The coatings retained the long chain structure and the ammonium groups of the monomer, both fundamental for the antibiotic activity, tested against Escherichia Coli bacteria. The AP plasma deposition of silica-like coatings containing silver as antibacterial agent has been reported by Zimmermann et al [30]; in this case HexaMethylDiSilOxane (HMDSO) was used as monomer, and silver nanoparticles or silver nitrate solution were fed as nitrogen aerosol in an AP DC plasma torch system. Taking advantage of the easy integration of DBDs with aerosol precursors, and of mild plasma condition, Heyse et al [32] have developed a new, original ONE-STEP approach to embed biomolecules in plasma deposited coatings.…”

Atmospheric pressure plasma CVD as a tool to functionalise wound dressings

“…For this kind of surface modification the atmospheric pressure plasma chemical vapour deposition (APCVD) process was applied. Former investigations on silver containing APCVD thin films on glass substrates showed an excellent antibacterial behaviour against Escherichia coli, which could also be maintained even after abrasive stress [11,12]. The approach for the investigation presented in this study was to demonstrate a product-oriented modification of textile-based wound dressings with a silver loaded antibacterial layer system characterized by a minimum of cytotoxic potential.…”

Functional Nano and Micro-Scale Thin Film Deposition on Textiles: Emerging Technologies and Applications

“…The costs and operating difficulties associated with high vacuum equipment are avoided and the coating may be a continuous, rather than a batch process, avoiding the need to interrupt the line. Schematic view of an APCVD system is shown in Figure 1 [24].…”

“…Schematic view of the APCVD system [24] Conductive Coatings® company produces nickel CVD coated nonwovens in a continuous process for electrical conductivity and electromagnetic shielding [25].…”