A5001905897- Metal and Thin Film Mechanics
- Bone Tissue Engineering Materials
- Titanium Alloys Microstructure and Properties
- Diamond and Carbon-based Materials Research
- Advanced materials and composites
- Orthopaedic implants and arthroplasty
- Dental materials and restorations
- Magnesium Alloys: Properties and Applications
- Advanced Photocatalysis Techniques
- High Entropy Alloys Studies
- TiO2 Photocatalysis and Solar Cells
- MXene and MAX Phase Materials
- Nanoparticles: synthesis and applications
- Semiconductor materials and devices
- Corrosion Behavior and Inhibition
- Lubricants and Their Additives
- Additive Manufacturing Materials and Processes
- Aluminum Alloys Composites Properties
- Laser Material Processing Techniques
- Dental Implant Techniques and Outcomes
- Laser-Ablation Synthesis of Nanoparticles
- High-Temperature Coating Behaviors
- Additive Manufacturing and 3D Printing Technologies
- Nanomaterials and Printing Technologies
- Adhesion, Friction, and Surface Interactions
National Institute of Research and Development for Optoelectronics
2016-2025
Dokuz Eylül University
2015
Universitatea Națională de Știință și Tehnologie Politehnica București
2013
Osseointegration plays the most important role in success of an implant. One applications hydroxyapatite (HAp) is as a coating for metallic implants due to its bioactive nature, which improves osteoconduction. The purpose this research was assess vitro behavior HAp undoped and doped with Ag and/or Sr obtained by galvanostatic pulsed electrochemical deposition. coatings were investigated terms chemical bonds, contact angle surface free energy, behavior, biomineralization acellular media (SBF...
Purpose The development of new advanced materials, such as photopolymerizable resins for use in stereolithography (SLA) and Ti6Al4V manufacture via selective laser melting (SLM) processes, have gained significant attention recent years. Their accuracy, multi-material capability application novel fields, implantology, biomedical, aviation energy industries, underscore the growing importance these materials. purpose this study is oriented toward materials stent manufacturing realized by 3D...
The current research aim is to biofunctionalize pure titanium (Ti, grade IV) substrate with titania nanotubes and Zn doped hydroxyapatite-based coatings by applying a duplex electrochemical treatment, evaluate the influence of content on physico-chemical properties hydroxyapatite (HAp). obtained nanostructured surfaces were covered HAp-based in different concentrations deposition pulsed galvanostatic mode. characterized terms morphology, elemental phasic composition, chemical bonds,...
Biomaterials are an important and integrated part of modern medicine, their development improvement essential. The fundamental requirement a biomaterial is found to be in its interaction with the surrounding environment, which it must coexist. aim this study was assess biological characteristics hydroxyapatite (HAp)-based coatings doped Mg Zn ions obtained by pulsed galvanostatic electrochemical method on surface pure titanium (cp-Ti) functionalized dioxide nanotubes (NTs TiO
Daily exposure to contaminated environments and surfaces leads serious health issues, increasing healthcare costs. Active materials that act against pathogens can effectively prevent their proliferation contribute increased protection infections. In this contribution, nanostructured thin films containing silver are investigated, using SiO2 TiO2 as transparent matrices embed the Ag atoms. The were obtained via magnetron sputtering, HiPIMS for deposition RF sputtering oxides, in either an Ar...
Chromium nitride and oxynitride coatings were deposited as monolayers ((Cr–N), Cr(N,O)) bilayers (Cr–N/Cr(N,O), Cr(N,O)/Cr–N) on 304 steel substrates by reactive cathodic arc method. The characterised X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), surface profilometry, scratch tester. anticorrosive properties of the assessed electrochemical tests in 0.10 M NaCl + 1.96 H2O2, carried out at 24 °C. Cr2N, CrN, Cr(N,O) phases identified grazing...
Multiple antibiotic resistance has now become a major obstacle to the treatment of infectious diseases. In this context, application nanotechnology in medicine is promising alternative for prevention infections with multidrug-resistant germs. The use silver as powerful antibacterial agent attracted much interest. TiO2 and SiO2 thin films enhanced Ag particles have been developed aim maintaining transparency polymer films. Antibacterial activity was evaluated Gram-negative species-Escherichia...
The reactive cathodic arc deposition technique was used to produce Ti nitride and oxynitride coatings on 304 stainless steel substrates (SS). Both mono (SS/TiN, SS/TiNO) bilayer (SS/TiN/TiNO SS/TiNO/TiN) were investigated in terms of elemental phase composition, microstructure, grain size, morphology, roughness. corrosion behavior a solution consisting 0.10 M NaCl + 1.96 H2O2 evaluated, aiming for biomedical applications. results showed that the compact, homogeneously deposited substrate,...
AISI H13 die steel specimens were subjected to heating at 1020 °C followed by oil quenching and double tempering 520 °C. Subsequently, these deep cryogenic treatment -185 in liquid nitrogen environment for 16 h then soft 100 once the attained room temperature. Thereafter, scanning electron microscopy (SEM) analysis backscatter diffraction (EBSD) analysis. The electrochemical corrosion activity was investigated 3.5% NaCl 23 ± 0.5 evaluating evolution of open circuit potential over time...
Titanium alloys are preferred metals as implant materials due to their advantageous combination of low density and high biocompatibility. However, the augmentation surfaces with calcium-based coatings becomes essential regulate corrosion rates enhance osteoconductive properties material. In this study, titanium alloys, specifically Ti6Al4V, underwent a transformative process wherein they were coated calcium phosphate (CaP) ceramics doped zinc (Zn) via micro-arc oxidation (MAO) technique,...
Considering the requirements of medical implantable devices, it is pointed out that biomaterials should play a more sophisticated, longer-term role in customization and optimization material–tissue interface order to ensure best long-term clinical outcomes. The aim this contribution was assess performance silicon carbide–hydroxyapatite various simulated biological fluids (Dulbecco’s modified Eagle’s medium (DMEM), body fluid (SBF), phosphate buffer solution (PBS)) through immersion assays...
The aim of the present paper was to evaluate effect neutron activation on TiSiCN carbonitrides coatings prepared at different C/N ratios (0.4 for under stoichiometric and 1.6 over stoichiometric). were by cathodic arc deposition using one cathode constructed Ti88 at.%-Si12 at.% (99.99% purity). comparatively examined elemental phase composition, morphology, anticorrosive properties in 3.5% NaCl solution. All exhibited f.c.c. solid solution structures had a (111) preferred orientation. Under...
The application of highly active nano catalysts in advanced oxidation processes (AOPs) improves the production non-selective hydroxyl radicals and co-oxidants for complete remediation polluted water. This study focused on synthesis characterisation a visible light C–N-co-doped TiO2 catalyst that we prepared via sol-gel method pyrolysed at 350 °C 105 min an inert atmosphere to prevent combustion carbon moieties. Then prolonged pyrolysis holding time 120 135 studied effect these changes...
The use of thin metallic layers at the thickness limit where transparency or spectral selectivity are achieved is gaining increased interest. cheap and abundant materials desirable in attempt to avoid environment economical costs. Cu as a replacement for Ag heat reflector one solutions that can be employed. stability over time known issue, copper being prone atmospheric oxidation degradation. In this contribution, obtained by magnetron sputtering investigated, using both DC HiPIMS processes...
The presence and detection of persistent pharmaceutical pollutants (PPPs) in aquatic environments requires urgent remediation. C-N-TiO2 was prepared by sol-gel method immobilised on Ti mesh dip-coating technique followed pyrolysis the furnace at 350°C for 105 minutes. Ti/C-N-TiO2 photocatalyst were characterised SEM, EDS, XRD, Raman spectroscopy, XPS. An optimised DCDBD system alone or combined with catalysts compared degradation sulfamethoxazole (SMX) simulated wastewater applied...