| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Tamulevičius, Sigitas
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2023Antiviral and Antibacterial Efficacy of Nanocomposite Amorphous Carbon Films with Copper Nanoparticles
- 2020Tailoring of Silver Nanoparticle Size Distributions in Hydrogenated Amorphous Diamond-like Carbon Nanocomposite Thin Films by Direct Femtosecond Laser Interference Patterningcitations
- 2018Femtosecond laser micro-machined polyimide films for cell scaffold applicationscitations
- 2017Progress in lignin hydrogels and nanocomposites for water purificationcitations
- 2015Local field enhanced second-harmonic response of organic nanofibers deposited on encapsulated plasmonic substratescitations
- 2014Robust plasmonic substratescitations
- 2011On the Properties of Yttria-Stabilized Zirconia Thin Films Prepared by Sol-Gel Method ; Itrio oksidu stabilizuoto cirkonio oksido plonų plėvelių, gautų zolių ir gelių metodu, savybių tyrimas
Places of action
| Organizations | Location | People |
|---|
document
Antiviral and Antibacterial Efficacy of Nanocomposite Amorphous Carbon Films with Copper Nanoparticles
Abstract
<jats:title>Abstract</jats:title><jats:p>Copper compound-rich films and coatings are effective against widespread viruses and bacteria. Even though the killing mechanisms are still debated it is agreed that the metal ion, nanoparticle release, and surface effects are of paramount importance in the antiviral and antibacterial efficacy of the surfaces. In this work we have investigated the behaviour of the reactive magnetron sputtered nanocomposite diamond-like carbon thin films with copper nanoparticles (DLC:Cu). The films were etched employing oxygen plasma and/or exposed to ultra-pure water aiming to investigate the differences of the Cu release in the medium and changes in film morphology. Pristine films were more effective in the Cu release reaching up to 1.3 mg/L/cm<jats:sup>2</jats:sup>concentration. Plasma processing resulted in the oxidation of the films which released less Cu but after exposure to water, their average roughness increased more, up to 5.5 nm. Pristine and O<jats:sub>2</jats:sub>plasma processed DLC:Cu films were effective against both model coronavirus and herpesvirus after 1-hour contact time and reached virus reduction up to 2.23 and 1.63 log<jats:sub>10</jats:sub>, respectively. Pristine DLC:Cu films were more effective than plasma-processed ones against herpesvirus, while less expressed difference was found for coronavirus. A bactericidal study confirmed that pristine DLC:Cu films were effective against gram-negative<jats:italic>E. coli</jats:italic>and gram-positive<jats:italic>E. faecalis</jats:italic>bacteria. After 3 hours 100% antibacterial efficiency (ABE) was obtained for<jats:italic>E. coli</jats:italic>and 99.83% for<jats:italic>E. faecalis</jats:italic>. After 8 hours and longer exposures, 100% ABE was reached. The half-life inactivation of viruses was 8.10 – 11.08 minutes and for<jats:italic>E. faecalis</jats:italic>19.5 – 30.2 minutes.</jats:p>