A5078985350- Semiconductor materials and devices
- Electronic and Structural Properties of Oxides
- Catalytic Processes in Materials Science
- Bone Tissue Engineering Materials
- Thin-Film Transistor Technologies
- Copper Interconnects and Reliability
- Silicon and Solar Cell Technologies
- Advancements in Semiconductor Devices and Circuit Design
- Silicon Nanostructures and Photoluminescence
- Integrated Circuits and Semiconductor Failure Analysis
- Electrocatalysts for Energy Conversion
- Semiconductor materials and interfaces
- Orthopaedic implants and arthroplasty
- Catalysis and Oxidation Reactions
- Titanium Alloys Microstructure and Properties
- ZnO doping and properties
- Advanced Chemical Physics Studies
- Advancements in Solid Oxide Fuel Cells
- Electrochemical Analysis and Applications
- Molecular Junctions and Nanostructures
- Advanced Memory and Neural Computing
- Analytical Chemistry and Sensors
- Metal and Thin Film Mechanics
- Ferroelectric and Piezoelectric Materials
- Dental materials and restorations
University of Illinois Chicago
2015-2025
University of Chicago
2017
University of Illinois Urbana-Champaign
2009-2017
Nanomaterials Research (United States)
2015
Bioengineering Center
1997-2009
Illinois College
2009
Purdue University West Lafayette
1991-2002
University of Minnesota
1981-1983
The electrode potential-dependent formation of oxygen species on copper in noncomplexing aqueous media, encompassing oxide phase films and adsorbed oxygen/hydroxide, are explored at different pH values by means surface-enhanced Raman spectroscopy (SERS). This technique provides a monolayer-sensitive in- situ vibrational probe, which can follow surface speciation voltammetric or longer time scales. In alkaline NaClO4 electrolytes (pH 13), the cyclic peaks associated with phase-film removal...
A high performance Li–S battery with novel fluoroether-based electrolyte was reported. The fluorinated prevents the polysulfide shuttling effect and improves Coulombic efficiency capacity retention of battery. Reversible redox reaction sulfur electrode in presence fluoroether TTE systematically investigated. Electrochemical tests post-test analysis using HPLC, XPS, SEM/EDS were performed to examine after cycling. results demonstrate that as a cosolvent mitigates dissolution promotes...
The most common complication of orthopedic surgery is implant failure, which can result in catastrophic injury and a significant financial burden for patients. Implant failure be caused by variety factors, the are peri‑implant infection (or implant-related infection), excessive inflammatory response pain aseptic loosening. Orthopedic surgeons now have options treating these issues, including revision surgery, has demonstrated to effective. If reaction corrosion avoided, it will enormous...
The fluorinated electrolyte containing a fluoroether 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether (TTE) was investigated as new for lithium-sulfur (Li-S) batteries. low solubility of lithium polysulfides (LiPS) in the reduced parasitic reactions with Li anode and mitigated self-discharge by limiting their diffusion from cathode to anode. use co-solvent LiNO3 an additive shows synergetic effect suppressing Li-S battery due formation solid interphase (SEI) on both sulfur cell...
Modifications of Ti-6Al-4V surface roughness, wettability and composition are increasingly studied to improve cellular viability on biomedical implants involving Ti-6Al-4V. In this study, it is shown that modification samples using anodization (for the formation titania nanotubes) combined with thermal oxidation (TO) results in superior characteristics those a smooth, rough, anodized-smooth or anodized-rough alone. Surface characterization performed water contact angle (WCA) measurements,...
The primary objective of this study was to fabricate a TiO2 nanotubular surface, which could maintain hydrophilicity over time (resist aging). In order achieve non-aging hydrophilic surfaces, anodization and annealing conditions were optimized. This is the first show that condition affect stability surface hydrophilicity. Our results indicate maintenance obtained nanotubes affected by voltage temperature. Annealing sharply decreased water contact angle (WCA) as-synthesized correlated...
Oral rehabilitation devices are susceptible to bio-tribocorrosion phenomena in the oral environment due synergism of wear, chemical, biochemical, and microbiological processes. This review summarizes clinical problems advances obtained based on current scientific evidence as well influence tribological fundamentals, testing methodologies protocols tribocorrosion analyses. The main question related with dental implants is treatment failure, which influenced by material degradation....
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTKinetic modeling of copolymerization/crosslinking reactionsAntonios G. Mikos, Christos Takoudis, and Nikolaos A. PeppasCite this: Macromolecules 1986, 19, 8, 2174–2182Publication Date (Print):August 1, 1986Publication History Published online1 May 2002Published inissue 1 August 1986https://pubs.acs.org/doi/10.1021/ma00162a012https://doi.org/10.1021/ma00162a012research-articleACS PublicationsRequest reuse permissionsArticle...
Formation of titanium dioxide nanotubes (TNTs) on a surface holds great potential for promoting desirable cellular response. However, prolongation drug release from these nano-reservoirs remains to be challenge. In our previous work TNTs were successfully loaded with drug. this study the effect dimensions is quantified aiming at introduction simple novel technique which overcomes complications previously introduced methods. Different groups different lengths and diameters are fabricated....
Thin films of aluminum oxide were deposited on H-passivated Si(100) substrate using trimethylaluminum and oxygen at 0.5 Torr 300 °C. Fourier transform infrared (FTIR) x-ray photoelectron spectroscopic analyses these showed no silicate phase the film–substrate interface. The O/Al ratio in film was found to be higher than that stoichiometric Al2O3. On annealing as-deposited samples Ar 900 °C, an absorption peak due transverse optical phonon for Si–O–Si stretching mode appeared FTIR spectra. A...
Biofunctionalized surfaces for implants are currently receiving much attention in the health care sector. Our aims were (1) to create bioactive Ti-coatings doped with Ca, P, Si, and Ag produced by microarc oxidation (MAO) improve surface properties of biomedical implants, (2) investigate TiO2 layer stability under wear corrosion, (3) evaluate human mesenchymal stem cells (hMSCs) responses cultured on modified surfaces. Tribocorrosion cell experiments performed following MAO treatment....
Modern techniques of thin film deposition (e.g., atomic layer [ALD]) have paved the way for modification surface target substrates with films, nanoparticles, or other types nanomaterials. This novel can improve base material's properties and enhance specific through adding functionalized groups to surface. In this study, ALD silver was conducted on commercially available Type I collagen membrane its bioactivity promote bone healing. Two different sample were studied: pristine silver-coated...