scholarly journals Surface Modification of Titanium with Hydrothermal Treatment at High Pressure

2006 ◽  
Vol 25 (3) ◽  
pp. 470-479 ◽  
Author(s):  
Razia SULTANA ◽  
Masayuki KON ◽  
Luciana M. HIRAKATA ◽  
Emi FUJIHARA ◽  
Kenzo ASAOKA ◽  
...  
Keyword(s):  
High Pressure ◽  
Surface Modification ◽  
Hydrothermal Treatment ◽  
Modification Of Titanium

scholarly journals Surface modification of titanium by hydrothermal treatment

2008 ◽  
Vol 58 (11) ◽  
pp. 599-603
Author(s):  
Masato Ueda ◽  
Ryoichi Matsunaga ◽  
Masahiko Ikeda ◽  
Michiharu Ogawa
Keyword(s):  
Surface Modification ◽  
Hydrothermal Treatment ◽  
Modification Of Titanium

Surface Modification of Titanium by Hydrothermal Treatment

2007 ◽  
Vol 361-363 ◽  
pp. 609-612 ◽  
Author(s):  
Akiko Obata ◽  
Toshihiro Kasuga
Keyword(s):  
Mechanical Properties ◽  
Surface Modification ◽  
Hydrothermal Treatment ◽  
Alkaline Solution ◽  
Bone Substitute ◽  
Titanium Surface ◽  
Anatase Phase ◽  
Axis Orientation ◽  
Mouse Osteoblast ◽  
Modification Of Titanium

Titanium is well known as an implant material having excellent biocompatibility and mechanical properties for use in bone substitute. In the present study, to enhance the biocompatibility of titanium, its surface was modified by hydrothermal treatment using dilute alkaline solution. After hydrothermal treatment, anatase predominantly formed on a titanium surface. The anatase phase showed high crystallinity and c-axis orientation. The anatase layers with leaf-like and pyramid-like forms were observed on titanium autoclaved at 120 °C and 240 °C, respectively. The anatase formation and its morphology were significantly related to the autoclaving temperature. To estimate the cellular compatibility of the autoclaved titanium, mouse osteoblast-like cells (MC3T3-E1 cells) were cultured on the autoclaved titanium surface. After 7- days culturing, the number of the cells harvested from the autoclaved titanium was higher than that from untreated titanium. The surface modification of titanium by hydrothermal treatment involved the proliferation of the cells on its surface.

Calcium Titanate Film-Coating on Titanium with Hydrothermal Treatments

2007 ◽  
Vol 330-332 ◽  
pp. 737-740 ◽  
Author(s):  
Masayuki Kon ◽  
Razia Sultana ◽  
Emi Fujihara ◽  
Kenzo Asaoka ◽  
Tetsuo Ichikawa
Keyword(s):  
High Pressure ◽  
Surface Modification ◽  
Simulated Body Fluid ◽  
Body Fluid ◽  
Titanium Surface ◽  
Film Coating ◽  
Calcium Titanate ◽  
Maximal Pressure ◽  
Titanium Surfaces ◽  
Modification Of Titanium

Film-coating on the surface of titanium was investigated by hydrothermal treatments with a maximal pressure of 6.3 MPa (280°C) in CaO solution and water to improve bioactivity and biocompatibility. As a result, calcium titanate (CaTiO3) film was formed on the titanium surface. The surface-coated titanium was immersed in a simulated body fluid (SBF) to estimate its bioactivity. Apatite precipitation was observed on all hydrothermal-treated titanium surfaces after immersion in SBF for 4 weeks. In particular, the apatite precipitation of titanium treated with 6.3 MPa in CaO solution was clearer and larger in amount than those of all other hydrothermal-treated specimens. The results suggest that surface modification of titanium with high-pressure hydrothermal treatments can be expected to improve bioactivity and biocompatibility.

Surface Modification of Titanium with Hydrothermal Treatment

2007 ◽  
Vol 561-565 ◽  
pp. 1521-1524
Author(s):  
Akiko Obata ◽  
Toshihiro Kasuga
Keyword(s):  
Surface Modification ◽  
Hydrothermal Treatment ◽  
Titanium Surface ◽  
Deionized Water ◽  
Laser Raman Spectroscopy ◽  
Titanium Plate ◽  
Laser Raman ◽  
Naoh Solution ◽  
Titanium Surfaces ◽  
Modification Of Titanium

Hydrothermal treatment was performed on a titanium plate for its surface modification to enhance its bioactivity. The titanium plate was autoclaved in deionized water (DW) or 0.05 mol/l NaOH solution at 120, 200 and 240 °C for 24 hr. The titanium surfaces autoclaved in DW were homogeneously coated with nano-sized particles and polygonal deposits with the sizes of several hundreds nanometers. The deposits were regarded as anatase according to the results of laser Raman spectroscopy (LRS). In the case of autoclaving in 0.05 mol/l NaOH solution, leaf-like, needle-like and pyramid deposits were observed on titanium surfaces and regarded to consist of anatase or brookite by LRS analysis. The formation of the deposits significantly depended on the autoclaving temperature. The deposits adhered on the titanium surface though a tape-test; the adhesion of the particle was found to be excellent.

Surface modification of titanium by hydrothermal treatment in Mg-containing solution and early osteoblast responses

2012 ◽  
Vol 23 (5) ◽  
pp. 1281-1290 ◽  
Author(s):  
Xingling Shi ◽  
Masaharu Nakagawa ◽  
Giichiro Kawachi ◽  
Lingli Xu ◽  
Kunio Ishikawa
Keyword(s):  
Surface Modification ◽  
Hydrothermal Treatment ◽  
Modification Of Titanium

scholarly journals New Surface Modification of Titanium Implant with Phospho-amino Acid

2005 ◽  
Vol 24 (4) ◽  
pp. 536-540 ◽  
Author(s):  
Yasuhiko ABE ◽  
Kyou HIASA ◽  
Maho TAKEUCHI ◽  
Yasuhiro YOSHIDA ◽  
Kazuomi SUZUKI ◽  
...  
Keyword(s):  
Surface Modification ◽  
Amino Acid ◽  
Titanium Implant ◽  
Modification Of Titanium
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