Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Giichiro Kawachi"'
Publikováno v:
Materials Science and Engineering: C. 72:389-393
Calcium carbonate (CaCO3) has been used as a bone substitute, and is a precursor for carbonate apatite, which is also a promising bone substitute. However, limited studies have been reported on the fabrication of artificial calcite blocks. In the pre
Publikováno v:
Applied Surface Science. 270:445-451
Pure titanium was subjected to surface modification in order to improve its bioactivity. Samples wet-polished by abrasive paper were hydrothermally treated in 0.1 mol/l MgCl 2 solutions with different pH values (5.5, 7.5 and 9.5) at 200 °C for 24 h.
Autor:
Kunio Ishikawa, Giichiro Kawachi, Radzali Othman, Masaharu Nakagawa, Melvin L. Munar, L. T. Bang
Publikováno v:
Journal of Applied Polymer Science. 130:426-433
Poly(e-caprolactone) (PCL)/silicon-substituted carbonate apatite (Si-CO3Ap) composite derived from the interconnected porous Si-CO3Ap reinforced with molten PCL was prepared. PCL was used to improve the mechanical properties of a porous apatite by a
Autor:
Giichiro Kawachi, Taro Nikaido, Shigeki Matsuya, Seiji Nakamura, Melvin L. Munar, Kanji Tsuru, Kunio Ishikawa
Publikováno v:
Key Engineering Materials. :15-18
The present study reports the synthesis of βTCP foam with fully interconnecting pores based on phase transformation of αTCP foam precursor by employing heat treatment. First, the αTCP foam precursor was fabricated by sintering the ceramics slurry-
Publikováno v:
Key Engineering Materials. :247-250
To improve surface hardness of dental implant made of pure titanium (Ti), titanium nitride (TiN) coating was introduced. However, studies revealed that TiN only showed osseointegration similar or inferior to that of Ti. Therefore it is necessary to i
Publikováno v:
Journal of Materials Science: Materials in Medicine. 23:1281-1290
Surface modification on titanium was carried out in order to improve its bioactivity. Pure titanium was hydrothermally treated in distilled water and 0.1 M MgCl(2) solutions at 200°C for 24 h. Surface morphology, roughness, wettability and chemical
Autor:
Kunio Ishikawa, Yoshihiro Terada, Giichiro Kawachi, Kazuhiro Sunouchi, Kanji Tsuru, Michito Maruta, Shigeki Matsuya
Publikováno v:
Dental Materials Journal. 31:549-557
Spherical carbonate apatite (CO3Ap) microspheres approximately 1 mm in diameter were fabricated by granulation of calcium hydroxide around a core followed by carbonation and phosphatization through dissolution-precipitation reaction. CO3Ap microspher
Autor:
Kanji Tsuru, Shigeki Matsuya, Alireza Valanezhad, Giichiro Kawachi, Kunio Ishikawa, Michito Maruta
Publikováno v:
Surface and Coatings Technology. 206:2207-2212
A new biocompatible coating layer was successfully prepared on titanium (Ti) substrate. by hydrothermal treatment in an acidic zinc phosphate solution at 250 °C for 8 h or longer time. Elemental analysis of the crystalline coating layer showed the e
Autor:
Akihiro Otsu, Ishikawa Kunio, Akari Takeuchi, Kanji Tsuru, Shigeki Matsuya, Michito Maruta, Giichiro Kawachi, Alireza Valanezhad
Publikováno v:
Key Engineering Materials. :166-169
The purpose of this study is to investigate whether calcite blocks with high mechanical property could be obtained for a short period from calcium hydroxide (Ca(OH)2) compact using heat-treatment under carbon dioxide (CO2) atmosphere. The Ca(OH)2 dis
Publikováno v:
Clinical Oral Implants Research. 22:1366-1371
Objective: To evaluate the biological effects of newly developed β-tricalcium phosphate (β-TCP) to improve lateral bone augmentation. Material and methods: Test samples (rod-shaped [RS]-blocks) were prepared through hydrothermal processing α-TCPs.