Synthesis and Characterization of Hydrogenated Diamond-Like Carbon (HDLC) Nanocomposite Films with Metal (Ag, Cu) Nanoparticles

Κουτσοκέρας, Λουκάς; Constantinou, Marios; Nikolaou, Panagiota; Constantinides, Georgios; Kelires, P. C.

doi:10.3390/ma13071753

Cited by 6 publications

(2 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Silicon and Molybdenum are the ideal dopants for tribological applications among the different metal dopants studied [ 20 ]. Minimizing the interactions between Copper and Carbon during coatings can retain the carbon film’s transparency rate and eventually increase the surface properties [ 21 ]. Specifically, Ag metal created a significant impact among others as standalone, composite, or doped materials, and increased the surface hydrophobic properties [ 22 ], electron field emission properties [ 23 ], and biocompatibility [ 24 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Ag-Doped Tetrahedral Amorphous Carbon Coatings and Their Antibiofilm Efficacy for Medical Implant Application

MubarakAli,

Kim,

et al. 2024

Nanomaterials

View full text Add to dashboard Cite

Tetrahedral amorphous carbon (taC) is a hydrogen-free carbon with extensive properties such as hardness, optical transparency, and chemical inertness. taC coatings have attracted much attention in recent times, as have coatings doped with a noble metal. A known antimicrobial metal agent, silver (Ag), has been used as a dopant in taC, with different Ag concentrations on the Ti64 coupons using a hybrid filtered cathodic vacuum arc (FCVA) and magnetron sputtering system. The physiochemical properties of the coated surface were investigated using spectroscopic and electron microscopy techniques. A doping effect of Ag-taC on biofilm formation was investigated and found to have a significant effect on the bacterial-biofilm-forming bacteria Staphylococcus aureus and Pseudomonas aeruginosa depending on the concentration of Ag. Further, the effect of coated and uncoated Ag-taC films on a pathogenic bacterium was examined using SEM. The result revealed that the Ag-taC coatings inhibited the biofilm formation of S. aureus. Therefore, this study demonstrated the possible use of Ag-taC coatings against biofilm-related complications on medical devices and infections from pathogenic bacteria.

show abstract

Section: Introductionmentioning

confidence: 99%

Synthesis of Ag-Doped Tetrahedral Amorphous Carbon Coatings and Their Antibiofilm Efficacy for Medical Implant Application

MubarakAli,

Kim,

et al. 2024

Nanomaterials

View full text Add to dashboard Cite

show abstract

“…That relates to the optical, electrical, tribological, hardness, biofouling, and adhesion properties of the DLC films [20][21][22] . Moreover, metal loading reduces the residual stress and the mismatch of interfacial atomic bonding increasing the adhesion of the films on different metallic and non-metallic substrates [23][24][25] .…”

Section: Introductionmentioning

confidence: 99%

Antiviral and Antibacterial Efficacy of Nanocomposite Amorphous Carbon Films with Copper Nanoparticles

Bakhet,

Tamulevičienė,

Vasiliauskas

et al. 2023

Preprint

View full text Add to dashboard Cite

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/cm2concentration. 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 O2plasma 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 log10, 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-negativeE. coliand gram-positiveE. faecalisbacteria. After 3 hours 100% antibacterial efficiency (ABE) was obtained forE. coliand 99.83% forE. faecalis. After 8 hours and longer exposures, 100% ABE was reached. The half-life inactivation of viruses was 8.10 – 11.08 minutes and forE. faecalis19.5 – 30.2 minutes.

show abstract

Antiviral and antibacterial efficacy of nanocomposite amorphous carbon films with copper nanoparticles

Bakhet,

Tamulevičienė,

Vasiliauskas

et al. 2024

Applied Surface Science

View full text Add to dashboard Cite

Synthesis and Characterization of Hydrogenated Diamond-Like Carbon (HDLC) Nanocomposite Films with Metal (Ag, Cu) Nanoparticles

Cited by 6 publications

References 44 publications

Synthesis of Ag-Doped Tetrahedral Amorphous Carbon Coatings and Their Antibiofilm Efficacy for Medical Implant Application

Synthesis of Ag-Doped Tetrahedral Amorphous Carbon Coatings and Their Antibiofilm Efficacy for Medical Implant Application

Antiviral and Antibacterial Efficacy of Nanocomposite Amorphous Carbon Films with Copper Nanoparticles

Antiviral and antibacterial efficacy of nanocomposite amorphous carbon films with copper nanoparticles

Contact Info

Product

Resources

About