Search

Your search keyword '"Min-Kyung Kang"' showing total 4 results
Start Over Author "Min-Kyung Kang" Journal dental materials journal
4 results on '"Min-Kyung Kang"'

1. Antibacterial effect and cytocompatibility of nano-structured TiO2 film containing Cl

Author

Kyoung Nam Kim, Kwang Mahn Kim, Min-Kyung Kang, and Seung-Kyun Moon

Subjects
Materials science, Surface Properties, chemistry.chemical_element, Nanotechnology, Microbial Sensitivity Tests, Sodium Chloride, Bacterial Adhesion, Streptococcus mutans, Contact angle, chemistry.chemical_compound, Hydrofluoric acid, Cell Line, Tumor, Materials Testing, Nano, Humans, MTT assay, General Dentistry, Cell Proliferation, Dental Implants, Titanium, Osteoblasts, Anodizing, technology, industry, and agriculture, Adhesion, Anti-Bacterial Agents, chemistry, Wettability, Ceramics and Composites, Wetting, Nuclear chemistry
Abstract

The aim of this study was to investigate the antibacterial effect and cytocompatibility of a nano-structured TiO2 film that contained Cl and had been coated onto commercially pure titanium. First, we prepared nano-structured TiO2 by anodization with hydrofluoric acid. Then, to confer an antibacterial effect, we performed a second anodization with NaCl solutions of different concentrations (0.5 M, 1 M, 2 M). The morphology, composition, and wettability of the surface were investigated by SEM, EDS, and a video contact angle measuring system. The antibacterial effect was evaluated by film adhesion method. And cytotoxicity was determined by the viability of MG-63 cells in a MTT assay. The SEM and EDS results showed that the TiO2 nano-structure containing Cl had successfully formed after the second anodization. The contact angle analysis showed that the anodized titanium had a hydrophilic character. The results of this in vitro investigation demonstrated that the TiO2 nano-structure film anodized in 1 M NaCl had an antibacterial effect and good cell compatibility.

Published
2011

2. The biomimetic apatite-cefalotin coatings on modified titanium

Author

Seung-Kyun Moon, Min-Kyung Kang, Kwang Mahn Kim, Sang Bae Lee, and Kyoung Nam Kim

Subjects
Cefalotin, Calcium Phosphates, Materials science, Hot Temperature, Scanning electron microscope, Surface Properties, Carbon Compounds, Inorganic, Energy-dispersive X-ray spectroscopy, chemistry.chemical_element, engineering.material, Apatite, Diffusion, Streptococcus mutans, Dental Materials, Coating, Coated Materials, Biocompatible, X-Ray Diffraction, Biomimetic Materials, Apatites, Cephalothin, Materials Testing, medicine, Humans, General Dentistry, Titanium, Anodizing, Metallurgy, Silicon Compounds, Spectrometry, X-Ray Emission, Electrochemical Techniques, Bacterial Load, Anti-Bacterial Agents, Durapatite, chemistry, Chemical engineering, Rutile, visual_art, Dental Etching, Ceramics and Composites, visual_art.visual_art_medium, engineering, Microscopy, Electron, Scanning, Spectrophotometry, Ultraviolet, medicine.drug
Abstract

Dental implant failure often occurs due to oral bacterial infection. The aim of this study was to demonstrate that antibiotic efficacy could be enhanced with modified titanium. First, the titanium was modified by anodization and heat-treatment. Then, a biomimetic coating process was completed in two steps. Surface characterization was performed with scanning electron microscopy, energy dispersive spectroscopy, and X-ray diffraction. Release of antibiotic was evaluated by UV/VIS spectrometry, and the antibacterial effect was evaluated on Streptococcus mutans. After the second coating step, we observed a thick homogeneous apatite layer that contained the antibiotic, cefalotin. The titanium formed a rutile phase after the heat treatment, and a carbonated apatite phase appeared after biomimetic coating. We found that the modified titanium increased the loading of cefalotin onto the hydroxyapatite coated surface. The results suggested that modified titanium coated with a cefalotin using biomimetic coating method might be useful for preventing local post-surgical implant infections.

Published
2012

3. The biomimetic apatite-cefalotin coatings on modified titanium.

Author

Min-Kyung Kang, Sang-Bae Lee, Seung-Kyun Moon, Kwang-Mahn Kim, and Kyoung-Nam Kim

Subjects
BIOMIMETIC chemicals, APATITE, DENTAL implants, SCANNING electron microscopy, X-ray spectroscopy, X-ray diffraction
Abstract

Dental implant failure often occurs due to oral bacterial infection. The aim of this study was to demonstrate that antibiotic efficacy could be enhanced with modified titanium. First, the titanium was modified by anodization and heat-treatment. Then, a biomimetic coating process was completed in two steps. Surface characterization was performed with scanning electron microscopy, energy dispersive spectroscopy, and X-ray diffraction. Release of antibiotic was evaluated by UV/VIS spectrometry, and the antibacterial effect was evaluated on Streptococcus mutans. After the second coating step, we observed a thick homogeneous apatite layer that contained the antibiotic, cefalotin. The titanium formed a rutile phase after the heat treatment, and a carbonated apatite phase appeared after biomimetic coating. We found that the modified titanium increased the loading of cefalotin onto the hydroxyapatite coated surface. The results suggested that modified titanium coated with a cefalotin using biomimetic coating method might be useful for preventing local post-surgical implant infections. [ABSTRACT FROM AUTHOR]

Published
2012
Full Text
View/download PDF

4. Antibacterial effect and cytocompatibility of nano-structured TiO2 film containing Cl.

Author

Min-Kyung Kang, Seung-Kyun Moon, Kwang-Mahn Kim, and Kyoung-Nam Kim

Subjects
ANTIBACTERIAL agents, DENTAL implants, HYDROFLUORIC acid, CHLORINE, TITANIUM dioxide, SURFACE energy
Abstract

The aim of this study was to investigate the antibacterial effect and cytocompatibility of a nano-structured TiO2 film that contained Cl and had been coated onto commercially pure titanium. First, we prepared nano-structured TiO2 by anodization with hydrofluoric acid. Then, to confer an antibacterial effect, we performed a second anodization with NaCl solutions of different concentrations (0.5 M, 1 M, 2 M). The morphology, composition, and wettability of the surface were investigated by SEM, EDS, and a video contact angle measuring system. The antibacterial effect was evaluated by film adhesion method. And cytotoxicity was determined by the viability of MG-63 cells in a MTT assay. The SEM and EDS results showed that the TiO2 nano-structure containing Cl had successfully formed after the second anodization. The contact angle analysis showed that the anodized titanium had a hydrophilic character. The results of this in vitro investigation demonstrated that the TiO2 nano-structure film anodized in 1 M NaCl had an antibacterial effect and good cell compatibility. [ABSTRACT FROM AUTHOR]

Published
2011
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results