The Experts below are selected from a list of 132 Experts worldwide ranked by ideXlab platform
Sang-won Park - One of the best experts on this subject based on the ideXlab platform.
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Fabrication and characterization of functionally graded nano‐micro porous titanium surface by anodizing
Journal of Biomedical Materials Research Part B, 2009Co-Authors: Yunzhi Yang, Sang-won ParkAbstract:The purpose of this study was to fabricate and characterize Nanotubular structure on machined titanium (MA) and resorbable blast media (RBM) treated titanium by anodizing. The anodized MA and RBM were characterized with scanning electron microscopy, transmission electron microscopy, X-ray diffraction, energy disperse spectra, X-ray photoelectron spectra, and nano-indentation and scratch test. Highly ordered Nanotubular Layers of individually 100 nm in diameter and 500 nm in length approximately were formed regardless of the substrates. The Nanotubular Layers consisted mainly of amorphous TiO2 with trace fluorine. The Nanotubular surfaces on both the substrates significantly reduced water contact angles and elastic modulus compared with those prior to anodizing. The anodizing treatment significantly increased the surface roughness of the smooth MA, but significantly decreased the surface roughness of the roughened RBM. The critical delamination forces of the Nanotubular Layer were not obtained due to the limitation of surface roughness. The anodized RBM consisted of a nano-micro porous graded structure, or a Nanotubular amorphous fluoride containing TiO2 Layer on top of micro-roughened titanium surface, which is expected to significantly improve the surface area that can be used to deliver drugs and growth factors and alleviate the interfacial elastic modulus mismatch as to enhance osseointegration when compared with conventional dental and orthopedic implant devices with smooth or acid etched surface. © 2008 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2009
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Fabrication and characterization of functionally graded nano-micro porous titanium surface by anodizing
Journal of Biomedical Materials Research - Part B Applied Biomaterials, 2009Co-Authors: Hyun-seung Kim, Jeong Tae Koh, Kyung Ku Lee, Doh Jae Lee, Kwang Min Lee, Yunzhi Yang, Sang-won ParkAbstract:The purpose of this study was to fabricate and characterize Nanotubular structure on machined titanium (MA) and resorbable blast media (RBM) treated titanium by anodizing. The anodized MA and RBM were characterized with scanning electron microscopy, transmission electron microscopy, X-ray diffraction, energy disperse spectra, X-ray photoelectron spectra, and nano-indentation and scratch test. Highly ordered Nanotubular Layers of individually 100 nm in diameter and 500 nm in length approximately were formed regardless of the substrates. The Nanotubular Layers consisted mainly of amorphous TiO(2) with trace fluorine. The Nanotubular surfaces on both the substrates significantly reduced water contact angles and elastic modulus compared with those prior to anodizing. The anodizing treatment significantly increased the surface roughness of the smooth MA, but significantly decreased the surface roughness of the roughened RBM. The critical delamination forces of the Nanotubular Layer were not obtained due to the limitation of surface roughness. The anodized RBM consisted of a nano-micro porous graded structure, or a Nanotubular amorphous fluoride containing TiO(2) Layer on top of micro-roughened titanium surface, which is expected to significantly improve the surface area that can be used to deliver drugs and growth factors and alleviate the interfacial elastic modulus mismatch as to enhance osseointegration when compared with conventional dental and orthopedic implant devices with smooth or acid etched surface.
Hyun-seung Kim - One of the best experts on this subject based on the ideXlab platform.
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Fabrication and characterization of functionally graded nano-micro porous titanium surface by anodizing
Journal of Biomedical Materials Research - Part B Applied Biomaterials, 2009Co-Authors: Hyun-seung Kim, Jeong Tae Koh, Kyung Ku Lee, Doh Jae Lee, Kwang Min Lee, Yunzhi Yang, Sang-won ParkAbstract:The purpose of this study was to fabricate and characterize Nanotubular structure on machined titanium (MA) and resorbable blast media (RBM) treated titanium by anodizing. The anodized MA and RBM were characterized with scanning electron microscopy, transmission electron microscopy, X-ray diffraction, energy disperse spectra, X-ray photoelectron spectra, and nano-indentation and scratch test. Highly ordered Nanotubular Layers of individually 100 nm in diameter and 500 nm in length approximately were formed regardless of the substrates. The Nanotubular Layers consisted mainly of amorphous TiO(2) with trace fluorine. The Nanotubular surfaces on both the substrates significantly reduced water contact angles and elastic modulus compared with those prior to anodizing. The anodizing treatment significantly increased the surface roughness of the smooth MA, but significantly decreased the surface roughness of the roughened RBM. The critical delamination forces of the Nanotubular Layer were not obtained due to the limitation of surface roughness. The anodized RBM consisted of a nano-micro porous graded structure, or a Nanotubular amorphous fluoride containing TiO(2) Layer on top of micro-roughened titanium surface, which is expected to significantly improve the surface area that can be used to deliver drugs and growth factors and alleviate the interfacial elastic modulus mismatch as to enhance osseointegration when compared with conventional dental and orthopedic implant devices with smooth or acid etched surface.
Yunzhi Yang - One of the best experts on this subject based on the ideXlab platform.
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Fabrication and characterization of functionally graded nano‐micro porous titanium surface by anodizing
Journal of Biomedical Materials Research Part B, 2009Co-Authors: Yunzhi Yang, Sang-won ParkAbstract:The purpose of this study was to fabricate and characterize Nanotubular structure on machined titanium (MA) and resorbable blast media (RBM) treated titanium by anodizing. The anodized MA and RBM were characterized with scanning electron microscopy, transmission electron microscopy, X-ray diffraction, energy disperse spectra, X-ray photoelectron spectra, and nano-indentation and scratch test. Highly ordered Nanotubular Layers of individually 100 nm in diameter and 500 nm in length approximately were formed regardless of the substrates. The Nanotubular Layers consisted mainly of amorphous TiO2 with trace fluorine. The Nanotubular surfaces on both the substrates significantly reduced water contact angles and elastic modulus compared with those prior to anodizing. The anodizing treatment significantly increased the surface roughness of the smooth MA, but significantly decreased the surface roughness of the roughened RBM. The critical delamination forces of the Nanotubular Layer were not obtained due to the limitation of surface roughness. The anodized RBM consisted of a nano-micro porous graded structure, or a Nanotubular amorphous fluoride containing TiO2 Layer on top of micro-roughened titanium surface, which is expected to significantly improve the surface area that can be used to deliver drugs and growth factors and alleviate the interfacial elastic modulus mismatch as to enhance osseointegration when compared with conventional dental and orthopedic implant devices with smooth or acid etched surface. © 2008 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2009
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Fabrication and characterization of functionally graded nano-micro porous titanium surface by anodizing
Journal of Biomedical Materials Research - Part B Applied Biomaterials, 2009Co-Authors: Hyun-seung Kim, Jeong Tae Koh, Kyung Ku Lee, Doh Jae Lee, Kwang Min Lee, Yunzhi Yang, Sang-won ParkAbstract:The purpose of this study was to fabricate and characterize Nanotubular structure on machined titanium (MA) and resorbable blast media (RBM) treated titanium by anodizing. The anodized MA and RBM were characterized with scanning electron microscopy, transmission electron microscopy, X-ray diffraction, energy disperse spectra, X-ray photoelectron spectra, and nano-indentation and scratch test. Highly ordered Nanotubular Layers of individually 100 nm in diameter and 500 nm in length approximately were formed regardless of the substrates. The Nanotubular Layers consisted mainly of amorphous TiO(2) with trace fluorine. The Nanotubular surfaces on both the substrates significantly reduced water contact angles and elastic modulus compared with those prior to anodizing. The anodizing treatment significantly increased the surface roughness of the smooth MA, but significantly decreased the surface roughness of the roughened RBM. The critical delamination forces of the Nanotubular Layer were not obtained due to the limitation of surface roughness. The anodized RBM consisted of a nano-micro porous graded structure, or a Nanotubular amorphous fluoride containing TiO(2) Layer on top of micro-roughened titanium surface, which is expected to significantly improve the surface area that can be used to deliver drugs and growth factors and alleviate the interfacial elastic modulus mismatch as to enhance osseointegration when compared with conventional dental and orthopedic implant devices with smooth or acid etched surface.
Xianjin Yang - One of the best experts on this subject based on the ideXlab platform.
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Self-organized Nanotubular Layer on Ti–4Zr–22Nb–2Sn alloys formed in organic electrolytes
Journal of Materials Research, 2020Co-Authors: Yanqin Liang, Xianjin YangAbstract:Self-organized Nanotubular Layers are electrochemically fabricated on Ti–4Zr–22Nb–2Sn alloys in water/glycerol (volume ratio 1:1) mixtures containing 0.3 M NH 4 F. Highly ordered nanotubes with two distinct diameters of ∼203 ± 5 (large size) and 113 ± 5 nm (small size) were observed at the bottom of the Layer, which may be ascribed to the different microstructure and composition in this alloy. On extended anodization, the small-size tubes gradually disappeared because of the increasing H + . After annealing for 1 h at 500 °C, the nanotube Layer on the Ti–4Zr–22Nb–2Sn alloy was transformed from the amorphous phase to anatase. The nanotubes were connected to each other by spaced rings at the sidewalls, whereas the distance between neighboring rings increased with the amplitude of applied current density.
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self organized Nanotubular Layer on ti 4zr 22nb 2sn alloys formed in organic electrolytes
Journal of Materials Research, 2009Co-Authors: Yanqin Liang, Xianjin YangAbstract:Self-organized Nanotubular Layers are electrochemically fabricated on Ti–4Zr–22Nb–2Sn alloys in water/glycerol (volume ratio 1:1) mixtures containing 0.3 M NH 4 F. Highly ordered nanotubes with two distinct diameters of ∼203 ± 5 (large size) and 113 ± 5 nm (small size) were observed at the bottom of the Layer, which may be ascribed to the different microstructure and composition in this alloy. On extended anodization, the small-size tubes gradually disappeared because of the increasing H + . After annealing for 1 h at 500 °C, the nanotube Layer on the Ti–4Zr–22Nb–2Sn alloy was transformed from the amorphous phase to anatase. The nanotubes were connected to each other by spaced rings at the sidewalls, whereas the distance between neighboring rings increased with the amplitude of applied current density.
Jeong Tae Koh - One of the best experts on this subject based on the ideXlab platform.
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Fabrication and characterization of functionally graded nano-micro porous titanium surface by anodizing
Journal of Biomedical Materials Research - Part B Applied Biomaterials, 2009Co-Authors: Hyun-seung Kim, Jeong Tae Koh, Kyung Ku Lee, Doh Jae Lee, Kwang Min Lee, Yunzhi Yang, Sang-won ParkAbstract:The purpose of this study was to fabricate and characterize Nanotubular structure on machined titanium (MA) and resorbable blast media (RBM) treated titanium by anodizing. The anodized MA and RBM were characterized with scanning electron microscopy, transmission electron microscopy, X-ray diffraction, energy disperse spectra, X-ray photoelectron spectra, and nano-indentation and scratch test. Highly ordered Nanotubular Layers of individually 100 nm in diameter and 500 nm in length approximately were formed regardless of the substrates. The Nanotubular Layers consisted mainly of amorphous TiO(2) with trace fluorine. The Nanotubular surfaces on both the substrates significantly reduced water contact angles and elastic modulus compared with those prior to anodizing. The anodizing treatment significantly increased the surface roughness of the smooth MA, but significantly decreased the surface roughness of the roughened RBM. The critical delamination forces of the Nanotubular Layer were not obtained due to the limitation of surface roughness. The anodized RBM consisted of a nano-micro porous graded structure, or a Nanotubular amorphous fluoride containing TiO(2) Layer on top of micro-roughened titanium surface, which is expected to significantly improve the surface area that can be used to deliver drugs and growth factors and alleviate the interfacial elastic modulus mismatch as to enhance osseointegration when compared with conventional dental and orthopedic implant devices with smooth or acid etched surface.
