M Kawashita

Summary

Affiliation: Kyoto University
Country: Japan

Publications

  1. ncbi request reprint Apatite formation on titanium substrates by electrochemical deposition in metastable calcium phosphate solution
    Masakazu Kawashita
    Photonics and Electronics Science and Engineering Center, Graduate School of Engineering, Kyoto University, Nisikyo ku, Kyoto 615 8510, Japan
    J Mater Sci Mater Med 19:137-42. 2008
  2. ncbi request reprint Preparation of ferrimagnetic magnetite microspheres for in situ hyperthermic treatment of cancer
    Masakazu Kawashita
    Ion Beam Engineering Experimental Laboratory, Graduate School of Engineering, Kyoto University, Nishikyo ku, Kyoto 615 8510, Japan
    Biomaterials 26:2231-8. 2005
  3. ncbi request reprint Surface structure and apatite-forming ability of polyethylene substrates irradiated by oxygen cluster ion beams
    M Kawashita
    Ion Beam Engineering Experimental Laboratory, Graduate School of Engineering, Kyoto University, Kyoto 615 8510, Japan
    J Biomed Mater Res A 82:995-1003. 2007
  4. ncbi request reprint In vitro heat generation by ferrimagnetic maghemite microspheres for hyperthermic treatment of cancer under an alternating magnetic field
    Masakazu Kawashita
    Photonics and Electronics Science and Engineering Center, Graduate School of Engineering, Kyoto University, Kyoto, 615 8510, Japan
    J Mater Sci Mater Med 19:1897-903. 2008
  5. ncbi request reprint Enzymatic preparation of hollow magnetite microspheres for hyperthermic treatment of cancer
    Masakazu Kawashita
    Graduate School of Engineering, Kyoto University, Nishikyo ku, Kyoto, 615 8510, Japan
    J Mater Sci Mater Med 17:605-10. 2006
  6. ncbi request reprint Bioactive bone cements containing nano-sized titania particles for use as bone substitutes
    K Goto
    Faculty of Medicine, Department of Orthopaedic Surgery, Kyoto University, Kawahara cho 54, Shogoin, Kyoto 606 8507, Japan
    Biomaterials 26:6496-505. 2005
  7. ncbi request reprint Process of calcification on artificial materials
    T Kokubo
    Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Sakyo ku, Kyoto 606 8501, Japan
    Z Kardiol 90:86-91. 2001
  8. ncbi request reprint Bonelike apatite formation on ethylene-vinyl alcohol copolymer modified with silane coupling agent and calcium silicate solutions
    Ayako Oyane
    Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Yoshida, Sakyo ku, Kyoto 606 8501, Japan
    Biomaterials 24:1729-35. 2003
  9. ncbi request reprint Effect of polyacrylic acid on the apatite formation of a bioactive ceramic in a simulated body fluid: fundamental examination of the possibility of obtaining bioactive glass-ionomer cements for orthopaedic use
    M Kamitakahara
    Department of Material Chemistry, Graduate School at Engineering, Kyoto University, Yoshida, Japan
    Biomaterials 22:3191-6. 2001
  10. ncbi request reprint Preparation of radiotherapy glass by phosphorus ion implantation at 100 keV
    M Kawashita
    Department of Material Chemistry, Kyoto University, Japan
    J Biomed Mater Res 38:342-7. 1997

Collaborators

Detail Information

Publications24

  1. ncbi request reprint Apatite formation on titanium substrates by electrochemical deposition in metastable calcium phosphate solution
    Masakazu Kawashita
    Photonics and Electronics Science and Engineering Center, Graduate School of Engineering, Kyoto University, Nisikyo ku, Kyoto 615 8510, Japan
    J Mater Sci Mater Med 19:137-42. 2008
    ..It is expected that the present electrochemical deposition will be useful to rapidly coat apatite on metallic materials...
  2. ncbi request reprint Preparation of ferrimagnetic magnetite microspheres for in situ hyperthermic treatment of cancer
    Masakazu Kawashita
    Ion Beam Engineering Experimental Laboratory, Graduate School of Engineering, Kyoto University, Nishikyo ku, Kyoto 615 8510, Japan
    Biomaterials 26:2231-8. 2005
    ..The heat generation of the heat-treated microspheres was estimated to be 41 Wg(-1), under 300 Oe and 100 kHz. The latter microspheres are believed to be promising thermoseeds for hyperthermic treatment of cancer...
  3. ncbi request reprint Surface structure and apatite-forming ability of polyethylene substrates irradiated by oxygen cluster ion beams
    M Kawashita
    Ion Beam Engineering Experimental Laboratory, Graduate School of Engineering, Kyoto University, Kyoto 615 8510, Japan
    J Biomed Mater Res A 82:995-1003. 2007
    ..It is concluded that apatite-forming ability can be induced on the surface of PE by the simultaneous use of O(2) cluster and monomer ion beams...
  4. ncbi request reprint In vitro heat generation by ferrimagnetic maghemite microspheres for hyperthermic treatment of cancer under an alternating magnetic field
    Masakazu Kawashita
    Photonics and Electronics Science and Engineering Center, Graduate School of Engineering, Kyoto University, Kyoto, 615 8510, Japan
    J Mater Sci Mater Med 19:1897-903. 2008
    ..It is believed that these microspheres may be useful for the in situ hyperthermic treatment of cancer...
  5. ncbi request reprint Enzymatic preparation of hollow magnetite microspheres for hyperthermic treatment of cancer
    Masakazu Kawashita
    Graduate School of Engineering, Kyoto University, Nishikyo ku, Kyoto, 615 8510, Japan
    J Mater Sci Mater Med 17:605-10. 2006
    ..Its heat generation under an alternating magnetic field of 300 Oe at 100 kHz was estimated to be 45 Wxg(-1). Microspheres 30 microm in diameter were also successfully obtained by using a spray gun...
  6. ncbi request reprint Bioactive bone cements containing nano-sized titania particles for use as bone substitutes
    K Goto
    Faculty of Medicine, Department of Orthopaedic Surgery, Kyoto University, Kawahara cho 54, Shogoin, Kyoto 606 8507, Japan
    Biomaterials 26:6496-505. 2005
    ..The compressive strength of ST60c was equivalent to that of PMMAc. These results show that ST60c is a promising material for use as a bone substitute...
  7. ncbi request reprint Process of calcification on artificial materials
    T Kokubo
    Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Sakyo ku, Kyoto 606 8501, Japan
    Z Kardiol 90:86-91. 2001
    ....
  8. ncbi request reprint Bonelike apatite formation on ethylene-vinyl alcohol copolymer modified with silane coupling agent and calcium silicate solutions
    Ayako Oyane
    Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Yoshida, Sakyo ku, Kyoto 606 8501, Japan
    Biomaterials 24:1729-35. 2003
    ..Hence, it has great potential as a bone substitute...
  9. ncbi request reprint Effect of polyacrylic acid on the apatite formation of a bioactive ceramic in a simulated body fluid: fundamental examination of the possibility of obtaining bioactive glass-ionomer cements for orthopaedic use
    M Kamitakahara
    Department of Material Chemistry, Graduate School at Engineering, Kyoto University, Yoshida, Japan
    Biomaterials 22:3191-6. 2001
    ..It is reasonable to suppose that this will occur with any glass-ionomer cement that contains PAA. Therefore, it might be considered difficult to obtain bioactive glass-ionomer cements...
  10. ncbi request reprint Preparation of radiotherapy glass by phosphorus ion implantation at 100 keV
    M Kawashita
    Department of Material Chemistry, Kyoto University, Japan
    J Biomed Mater Res 38:342-7. 1997
    ..This indicates that a chemically durable glass containing a larger amount of phosphorus could be obtained if a P+ ion is implanted at higher energies to localize in a deeper region of the glass surface...
  11. ncbi request reprint Apatite-forming ability and mechanical properties of PTMO-modified CaO-SiO2-TiO2 hybrids derived from sol-gel processing
    Noboru Miyata
    Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Sakyo ku, Kyoto, 606 8501, Japan
    Biomaterials 25:1-7. 2004
    ..Thus, the organic-inorganic hybrids exhibiting both fairly high apatite-forming ability and high capability for deformation were obtained. These hybrid materials may be useful as new kind of bioactive bone-repairing materials...
  12. ncbi request reprint Preparation of antibacterial silver-doped silica glass microspheres
    Masakazu Kawashita
    Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Sakyo ku, Kyoto 606 8501, Japan
    J Biomed Mater Res A 66:266-74. 2003
    ..01/0.01 showed excellent antibacterial activity against Escherichia coli. The minimum inhibitory concentration (MIC) of the microspheres was 400, which is less than the MIC value (800) of commercial antibacterial materials...
  13. ncbi request reprint Novel bioactive materials with different mechanical properties
    Tadashi Kokubo
    Department of Material Chemistry, Faculty of Engineering, Graduate School of Engineering, Kyoto University, Yoshida, Sakyo ku, 606 8501, Kyoto, Japan
    Biomaterials 24:2161-75. 2003
    ..This strategy is expected to ultimately lead to bioactive composites that have a bone-like structure and, hence, bone-like mechanical properties...
  14. ncbi request reprint Apatite-forming ability and mechanical properties of CaO-free poly(tetramethylene oxide) (PTMO)-TiO2 hybrids treated with hot water
    Masanobu Kamitakahara
    Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Yoshida, Sakyo ku, Kyoto 606 8501, Japan
    Biomaterials 24:1357-63. 2003
    ..Hybrid PT40 showed strength and Young's modulus analogous to those of human cancellous bones, and high ductility after the hot-water treatment. This kind of hybrid is expected to be useful as a new type of bone-repairing material...
  15. ncbi request reprint Apatite-forming ability and mechanical properties of PTMO-modified CaO-SiO2 hybrids prepared by sol-gel processing: effect of CaO and PTMO contents
    Noboru Miyata
    Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Japan
    Biomaterials 23:3033-40. 2002
    ..These new kind of hybrid materials may be useful as bioactive bone-repairing materials...
  16. ncbi request reprint Apatite-forming ability of carboxyl group-containing polymer gels in a simulated body fluid
    M Kawashita
    Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Sakyo ku, Kyoto 606 8501, Japan
    Biomaterials 24:2477-84. 2003
    ..This result provides a guiding principle for obtaining apatite-organic polymer fiber composites. This composite is expected to have an analogous structure to that of natural bone...
  17. ncbi request reprint PET fiber fabrics modified with bioactive titanium oxide for bone substitutes
    Tadashi Kokubo
    Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Kasugai shi, Aichi, Japan
    J Mater Sci Mater Med 19:695-702. 2008
    ....
  18. ncbi request reprint Antibacterial activity of silver-doped silica glass microspheres prepared by a sol-gel method
    Noriaki Masuda
    Nippon Electric Glass Co, Ltd, Otsu, Shiga 520 8639, Japan
    J Biomed Mater Res B Appl Biomater 83:114-20. 2007
    ..Polypropylene plates and films mixed with the microspheres heat-treated at 800 degrees C showed excellent antibacterial properties...
  19. ncbi request reprint Preparation of bioactive flexible poly(tetramethylene oxide) (PTMO)-CaO-Ta2O5 hybrids
    Masanobu Kamitakahara
    Graduate School of Materials Science, Nara Institute of Science and Technology, 8916 5, Ikoma shi, Nara 630 0192, Japan
    J Mater Sci Mater Med 18:1117-24. 2007
    ..The mechanical strength of PT40Ca15 was, however, lower than PT40Ca0 and was decreased by soaking in SBF. Thus obtained flexible bioactive CaO-free PTMO-Ta2O5 hybrids are expected to be useful as bone substitutes...
  20. ncbi request reprint Formation of bone-like apatite on organic polymers treated with a silane-coupling agent and a titania solution
    Francisco Balas
    Institute of Science and Technology Research, Chubu University, 1200, Matsumoto cho, Kasugai shi, Aichi 487 8501, Japan
    Biomaterials 27:1704-10. 2006
    ..Three-dimensional fabrics of these polymer fibers, with open spaces in various sizes, are expected to be useful as bone substitutes, as they will be integrated with the natural bone...
  21. ncbi request reprint Apatite formation on non-woven fabric of carboxymethylated chitin in SBF
    Tadashi Kokubo
    Research Institute for Science and Technology, Chubu University, 1200 Matsumoto cho, Kasugai, Aichi 487 8501, Japan
    Biomaterials 25:4485-8. 2004
    ..The apatite-chitin fibre composite thus prepared is expected to be useful as a flexible bioactive bone-repairing material...
  22. ncbi request reprint Surface potential change in bioactive titanium metal during the process of apatite formation in simulated body fluid
    Hyun Min Kim
    Department of Ceramic Engineering, School of Advanced Materials Engineering, Yonsei University, 134 Shinchon dong, Seodaemun gu, Seoul 120 749, Korea
    J Biomed Mater Res A 67:1305-9. 2003
    ..The amorphous calcium phosphate eventually transforms and stabilizes into bone-like crystalline apatite with a negative charge...
  23. ncbi request reprint [In situ therapy of deep-seated canver by radioactive microspheres]
    Masakazu Kawashita
    Nihon Hoshasen Gijutsu Gakkai Zasshi 58:585-91. 2002
  24. ncbi request reprint Effect of hot water and heat treatment on the apatite-forming ability of titania films formed on titanium metal via anodic oxidation in acetic acid solutions
    Xinyu Cui
    Institute of Metal Research, Chinese Academy of Sciences, Wenhua Road 72, Shenyang, 110016, China
    J Mater Sci Mater Med 19:1767-73. 2008
    ..Thus, bioactive titanium metals could be prepared via anodic oxidation and subsequent hot water and heat treatment that would be suitable for applications under load-bearing conditions...