A5100775872- Bone Tissue Engineering Materials
- Titanium Alloys Microstructure and Properties
- Dental materials and restorations
- Dental Implant Techniques and Outcomes
- Orthopaedic implants and arthroplasty
- Metal and Thin Film Mechanics
- Hydrogen embrittlement and corrosion behaviors in metals
- Endodontics and Root Canal Treatments
- Dental Radiography and Imaging
- Corrosion Behavior and Inhibition
- Advanced materials and composites
- Calcium Carbonate Crystallization and Inhibition
- Additive Manufacturing Materials and Processes
- Additive Manufacturing and 3D Printing Technologies
- Electronic and Structural Properties of Oxides
- Dental Research and COVID-19
- Intermetallics and Advanced Alloy Properties
- Marine Biology and Environmental Chemistry
- Welding Techniques and Residual Stresses
- Dental Erosion and Treatment
- Silicone and Siloxane Chemistry
- Engineering Applied Research
- Drilling and Well Engineering
- Craniofacial Disorders and Treatments
- Advanced Welding Techniques Analysis
Chonnam National University
2015-2025
Korea Institute of Industrial Technology
2025
Catholic University of Korea
2023
Seoul St. Mary's Hospital
2023
National Research Foundation of Korea
2016
Yonsei University
2010
Korea Institute of Science and Technology
2005
The University of Texas Health Science Center at Houston
2005
The University of Texas Health Science Center at San Antonio
1999
Single-crystalline diluted magnetic semiconductor GaN:Mn nanowires with controlled Mn concentrations have been successfully synthesized and incorporated into devices (see Figure). These exhibit Curie temperatures above room temperature, magnetoresistances near spin-dependent transport. The are used as building blocks for the fabrication of GaN:Mn/n-SiC based light-emitting diodes.
In this paper, the effects of Nb addition (5-20 wt %) on microstructure, mechanical properties, corrosion behavior, and cytotoxicity Ti-Nb alloys were investigated with aim understanding relationship between phase/microstructure various properties Ti-xNb alloys. Phase/microstructure was analyzed using X-ray diffraction (XRD), SEM, TEM. The results indicated that (x = 10, 15, 20 mainly composed α + β phases precipitation isothermal ω phase. volume percentage phase increased increasing...
Dental implants are commonly used in daily practice; however, most surgeons do not really know the characteristics of these biomedical devices they placing their patients. The objective this work is to describe chemical and morphological 14 implant surfaces available on market establish a simple clear identification (ID) card for all them, following classification procedure developed Dohan Ehrenfest et al (2010) Codification (DEC) system. Fourteen were characterized: TiUnite (Nobel Biocare),...
The spherical type of aluminum (Al) was mixed with (20, 30, 40, 50, and 60 vol.%) flake graphite (Gf) using a shake mixer at 2,500 rpm for 1 hr. Al-Gf powders were consolidated by spark plasma sintering under the following process conditions; temperature 480°C heating rate °C/min, pressure 40 MPa duration 2 minutes 480°C. results showed that Al-20 vol.% Gf sintered-body achieved highest relative density 98%, while lowest value 92% when content vol.%. porosity rate, measured ImageJ, ranged...
The aim of this study was to evaluate the cytotoxicity, setting time and compressive strength MTA two novel tricalcium silicate-based endodontic materials, Bioaggregate (BA) Biodentine (BD).Cytotoxicity evaluated by using a 2,3-bis(2-methoxy-4-nitro-5-sulfophenyl)-5-((phenylamino)carbonyl)-2H-tetrazolium hydroxide (XTT) assay. Measurements 9 heavy metals (arsenic, cadmium, chromium, copper, iron, lead, manganese, nickel, zinc) were performed inductively coupled plasma-mass spectrometry...
The characteristics of oxidized titanium (Ti) surfaces varied according to treatment conditions such as duration time and temperature. Thermal oxidation can change Ti surface characteristics, which affect many cellular responses cell adhesion, proliferation, differentiation. Thus, this study was conducted evaluate the response thermally treated surfaces.The samples were divided into 4 groups.machined smooth (Ti-S) untreated. Group I: Ti-S in a furnace at 300℃ for 30 minutes. II: 500℃ III:...
Ti-xIn (x = 0, 5, 10, 15 and 20 wt%) alloys were prepared to investigate the effect of indium on microstructure, mechanical properties, corrosion behavior titanium with aim understanding relationship between phase/microstructure various properties alloys. The exhibited a lamellar α-Ti structure at an content up wt%. High-resolution TEM images revealed that all systems contained fine, acicular martensitic phase, which showed compositional fluctuations nanoscopic level. sensitive content....
In this study, nucleation and growth of bone-like hydroxyapatite (HAp) mineral in modified simulated body fluids (m-SBF) were induced on chitosan (CS) substrates, which prepared by spin coating Ti substrate.The m-SBF showed a two fold increase the concentrations calcium phosphate ions compared to SBF, post-NaOH treatment provided stabilization coatings.The phosphate/chitosan composite homogeneous distribution approximately 350 nm-sized spherical clusters composed octacalcium (OCP; Ca 8 H 2...