10 documents found, page 1 of 1
Atmospheric-pressure plasma spray deposition of silver/HMDSO nanocomposite on p...
Ribeiro, Ana Isabel Ferreira; Modic, M.; Cvelbar, U.; Dinescu, G.; Mitu, B.; Nikiforov, A.; Leys, C.; Kuchakova, I.; Souto, A. P.; Zille, AndreaNovel coatings containing silver nanoparticles (AgNPs) with strong bonding and controllable antibacterial activity on polyamide 6,6 fabric were produced by dielectric barrier discharge (DBD) plasmaassisted deposition at atmospheric pressure and hexamethyldisiloxane (HMDSO) layers. Silver ion release was tuned using a “sandwich” coating structure to prolong the antibacterial effect. The novel spray-assisted depo...
DBD plasma treatment and chitosan layers - A green method for stabilization of ...
Ribeiro, Ana Isabel Ferreira; Modic, M.; Cvelbar, U.; Dinescu, G.; Mitu, B.; Nikiforov, A.; Leys, C.; Kuchakova, I.; De Vrieze, M.The addition of silver nanoparticles (AgNPs) to biomedical textiles can be of great interest to protect the materials against microorganisms and prevent their spread. However, the human and environmental over‐exposure to AgNPs is leading to numerous concerns due to their toxicity. In this work, AgNPs were stabilized onto polyamide 6.6 fabrics (PA66) through atmospheric dielectric barrier discharge (DBD) plasma ...
Antimicrobial efficacy of low concentration PVP-silver nanoparticles deposited ...
Ribeiro, Ana Isabel Ferreira; Senturk, D.; Silva, K. K.; Modic, M.; Cvelbar, U.; Dinescu, G.; Mitu, B.; Nikiforov, A.; Leys, C.; Kuchakova, I.In this study, a low concentration (10 μg·mL−1) of poly(N-vinylpyrrolidone) (PVP)-coated silver nanoparticles (AgNPs) were deposited by spray and exhaustion (30, 70 and 100 ◦C) methods onto untreated and dielectric barrier discharge (DBD) plasma-treated polyamide 6,6 (PA66) fabric. DBD plasma-treated samples showed higher AgNP deposition than untreated ones for all methods. After five washing cycles, only DBD p...
Atmospheric-pressure plasma spray deposition of silver/HMDSO nanocomposite on p...
Ribeiro, Ana Isabel Ferreira; Modic, M.; Cvelbar, U.; Dinescu, G.; Mitu, B.; Nikiforov, A.; Leys, C.; Kuchakova, I.; Vanneste, M.; Heyse, P.
Efficient silver nanoparticles deposition method on DBD plasma-treated polyamid...
Ribeiro, Ana Isabel Ferreira; Senturk, D.; Silva, K. S.; Modic, M.; Cvelbar, U.; Dinescu, G.; Mitu, B.; Nikiforov, A.; Leys, C.; Kuchakova, I.Several methods for silver nanoparticles (AgNPs) deposition on dielectric barrier discharge (DBD) plasma treated and not treated polyamide 6,6 fabric were tested for the production of durable antibacterial textiles. Ultrasound-assisted, dip-coating, exhaustion at 70 ̊C and spray deposition methods were applied. The treated fabrics were analysed in terms of coating uniformity, plasma effect, nanoparticles concen...
Atmospheric pressure plasma and depositions of antibacterial coatings
Modic, M.; Nikiforov, A.; Leys, C.; Kuchakova, I.; De Vrieze, M.; Petrovska, M.; Zille, Andrea; Dinescu, G.; Mitu, B.; Cvelbar, U.Healthcare-associated infections (HCAI) are complications of healthcare that result in elevated patient morbidity and mortality. HCAI present a huge financial burden for patients, hospitals and insurers due to extended hospitalisation and associated care. According to the estimations, in the US alone, HCAI affects approximately 2 million patients annually, of whom approximately 90.000 patients die, with an esti...
Efficient silver nanoparticles deposition method on DBD plasma-treated polyamid...
Ribeiro, Ana Isabel Ferreira; Senturk, D; Silva, K. S.; Modic, M.; Cvelbar, U.; Dinescu, G.; Mitu, B.; Nikiforov, A.; Leys, C.; Kuchakova, I.The study of antimicrobial fabrics with silver nanoparticles (AgNPs) incorporation has shown excellent properties in medical, pharmaceutical, cosmetics and electronics applications due to their formidable action against pathogens, preventing and treating infections.[1] The high surface-to-volume ratio from AgNPs promotes an easy release of silver ion, responsible for the antimicrobial effect.[2] The most tradit...
Plasma-laser assisted synthesis of nanoparticles for antibacterial coatings
Jurov, A.; Krstulović, N.; Modic, M.; Hojnik, N.; Nikiforov, A.; Zille, Andrea; Leys, C.; Cvelbar, U.The “green synthesis” of colloidal nanoparticles and their application for the antibacterial coatings is based on the plasma-laser assisted ablation in liquids. Nanoparticles are synthesized through the process of laser ablation of target in water, which enables additional advantages in comparison with the other standard wet chemical synthesis, such as simplicity and complete utilization of materials. Furthermo...
Antibacterial composite coatings of metal nano-particles on textiles and plasti...
Nikiforov, A.; Kuchakova, I.; Vanneste, M.; Heyse, P.; De Vrieze, M.; Zille, Andrea; Dinescu, Gh.; Mitu, B.; Cvelbar, U.; Modic, M.; Leys, Ch.Non-woven textile materials with antimicrobial properties are of high demands for applications ranging from medical dressing to everyday cleaning products. We proposed plasma assisted route to engineer polymer films and non-woven fabrics with antimicrobial nano-composite coatings. Atmospheric pressure plasma is used for deposition of nano-composites. Nano-particles Ag, Cu and ZnO are tested as antimicrobial age...
Recent advances in vacum sciences and applications
Mozetic, M.; Ostrikov, K.; Ruzic, D. N.; Curreli, D.; Cvelbar, U.; Vesel, A.; Primc, G.; Leisch, M.; Jousten, K.; Malyshev, O. B.; Hendricks, J. H.Recent advances in vacuum sciences and applications are reviewed. Novel optical interferometer cavity devices enable pressure measurements with ppm accuracy. The innovative dynamic vacuum standard allows for pressure measurements with temporal resolution of 2 ms. Vacuum issues in the construction of huge ultra-high vacuum devices worldwide are reviewed. Recent advances in surface science and thin films include ...