ƒAwards„

1)Y. Shirosaki, "Biocompatibility due to silicone by surface modifications", Bestows the awards of Honorable Mention Upon 2000, Undergraduate Materials Research Initiative, MRS-Material Research Society, October 1999.


ƒPatents„

1)C. Ohtsuki, A. Osaka, H. Iida, K. Ohta*(*Ohta Co.), "Biocompatible titanium implant", US005855612A, 1999.1.5.


ƒPublications„

1)N. Murata, A. Osaka, K. Ito*, M. Kikuchi**, J. Tanaka** (*NOF Corporation) (**National Institute for Research in Inorganic Materials), "Organic/inorganic interaction between hydroxyapatite and derivatives of poly(ethylene glycol)", Transactions of the Materials Research Society of Japan (1999).

2)S. Hayakawa, K. Tsuru, C. Ohtsuki, A. Osaka, "Mechanism of apatite formation on a sodium silicate glass in a simulated body fluid", Journal of American Ceramic Society, 82[8], 2155-2160 (1999).

3)S. Hayakawa, L.L. Hench* (*Department of Materials, Imperial College of Science, Technology and Medicine, Prince Consort Road, London, England), "Molecular Orbital Models of Silica Modified by Fluorine", Journal of Non-Crystalline Solids, 242, 131-140 (1999).

4)S. Sakida*, S. Hayakawa, T. Yoko*, (*Institute for Chemical Research, Kyoto University), "Part 1. 125Te NMR study of Tellurite Crystals", Journal of Non-Crystalline Solids, 243, 1-12 (1999).

5)S. Sakida*, S. Hayakawa, T. Yoko* (*Institute for Chemical Research, Kyoto University), "Part 2. 125Te NMR study of M2O-TeO2(M=Li, Na, K, Rb, Cs) glasses", Journal of Non-Crystalline Solids, 243, 13-25 (1999).

6)S. Sakida*, S. Hayakawa, T. Yoko* (*Institute for Chemical Research, Kyoto University), " 125Te NMR study of MO-TeO2(M=Mg, Zn, Sr, Ba and Pb) glasses", Journal of Ceramic Society ofJapan, 107, 395-402 (1999).


ƒProceedings„

1)M. Kubo, S. Takashima*, K. Tsuru, S. Hayakawa, C. Ohtsuki**, A. Osaka (*Co-operative Research Center, Okayama University) (**Nara Institete of Science and Technology), "Surface modification of polymer with graftinig and coating of silane hybrids and their bioactivity", Materials and Research Society Symposium Proceedings, Vol.576, pp.377-382 (1999).

2)X.-X. Wang, S. Hayakawa, A. Osaka, "In vitro bioactivity of titania gel layers formed by reaction between titanium substrates and an H2O2/TaCl5 solution", Bioceramics, Vol. 12, ed. by H. Ohgushi, G. W. Hasting and T. Yoshikawa, World Scientific, Singapore, pp.121-124 (1999).

3)S. Kaneko*, S. Takemoto, C. Ohtsuki**, T. Ozaki*, H. Inoue*, A. Osaka (*Department of Orthopaedic Surgery, Okayama University Medical School) (**Nara Institete of Science and Technology), "Bone bonding ability of Ti-6Al-4V alloy with hydrogen peroxide solution", Bioceramics, Vol. 12, ed. by H. Ohgushi, G. W. Hastings and T. Yoshikawa, World Scientific, Singapore, pp.295-298 (1999).

4)N. Murata, A. Osaka, S.-H. Rhee*, K. Miyazaki**, Y. Sakura**, T. Ikoma***, J. Tanaka*** (*Korea Research Institute of Chemical Technology) (**Seikagaku Co.) (***National Institute for Research in Inorganic Materials), "The preparation of hydroxyapatite and chondroitin sulfate composites", Bioceramics, Vol. 12, ed. by H. Ohgushi, G. W. Hasting and T. Yoshikawa, World Scientific, Singapore, pp.429-432 (1999).

5)Y. Aburatani, S. Hayakawa, C. Ohtsuki*, A. Osaka (*Nara Institete of Science and Technology), "Synthesis of bioactive organic-inorganic hybrids reinforced with AEROSIL®", Bioceramics, Vol. 12, ed. by H. Ohgushi, G. W. Hasting and T. Yoshikawa, World Scientific, Singapore, pp.457-460 (1999).

6)S. Takashima*, S. Takemoto, S. Hayakawa, A. Osaka (*Co-operative Research Center, Okayama University), "Synthesis of blood compatible ceramic powders and new methods of examining anti-clotting properties", Bioceramics, Vol. 12, ed. by H. Ohgushi, G. W. Hasting and T. Yoshikawa, World Scientific, Singapore, pp.551-554 (1999).

7)S. Hayakawa, A. Osaka, "Chemical state of fluoride ions in oxyfluoroborate and oxyfluorosilicate glass", Proceedings of 16th International Japan-Korea Seminar on Ceramics, pp.153-157 (1999).


ƒInternational Congress„

1)A. Osaka, S. Hayakawa, K. Tsuru, S. Takashima* (*Co-operative Research Center, Okayama University), "Development of new biomaterials for an improved quality of life", 7th Institute of Materials Conference on Materials for Health & Wealth, 1999.3.26, Singapore.

2)M. Kubo, S. Takashima*, K. Tsuru, S. Hayakawa, C. Ohtsuki**, A. Osaka (*Co-operative Research Center, Okayama University) (**Nara Institete of Science and Technology), "Surface modification of polymer with graftinig and coating of silane hybrids and their bioactivity", Materials Research Society 1999 Spring Meeting, Symposium DD : Organic-Inorgainic Hybrid Material, DD9.10, Abstract pp.463, 1999.4.7, San Francisco, USA.

3)L. Ren, K. Tsuru, S. Hayakawa, A. Osaka, "Viscoelastic properties and bioactivity of gelatin-silicate composites", The Fifth IUMRS International Conference on Advanced Materials, Symposium S : Biomedical Materials, S52, Abstract(2) pp.70, 1999.6.18, Beijin, China.

4)S. Hayakawa, A. Osaka, "Biomimetic Deposition of Calcium Phosphates in a Simulated Body Fluid", 15th University Conference on Glass Science, Structure, Properties and
Applications of Phosphate and Phosphate-Containing Glasses, M12, 1999. 6.20-23, Missouri, USA.

5)T. Yabuta, K. Tsuru, S. Hayakawa, C. Ohtsuki*, A. Osaka (*Nara Institete of Science and Technology), "Synthesis of bioactive organic-inorganic hybrid with ƒÁ-methacryloxypropyltrimethoxysilane", 10th International Workshop on Glasses, Ceramics, Hybrids and Nanocomposites from Gels, Abstract 3-26, pp.205, 1999.9.22, Yokohama, Japan.

6)X.-X. Wang, S. Hayakawa, A. Osaka, "In vitro bioactivity of titania gel layers formed by reaction between titanium substrate and an H2O2/TaCl5 solution", 12th International Symposium on Ceramics in Medicine, Bioceramics, Vol.12, pp.121-124, 1999.10.9, Nara, Japan.

7)S. Kaneko*, S. Takemoto, C. Ohtsuki**, T. Ozaki*, H. Inoue*, A. Osaka (*Department of Orthopaedic Surgery, Okayama University Medical School) (**Nara Institete of Science and Technology), "Bone bonding ability of Ti-6Al-4V alloy with hydrogen peroxide solution", 12th International Symposium on Ceramics in Medicine, Bioceramics, Vol.12, pp.295-298, 1999.10.10, Nara, Japan.

8)N. Murata, A. Osaka, S.-H. Rhee*, K. Miyazaki**, Y. Sakura**, T. Ikoma***, J. Tanaka*** (*Korea Research Institute of Chemical Technology) (**Seikagaku Co.) (***National Institute for Research in Inorganic Materials), "The preparation of hydroxyapatite and chondroitin sulfate composites", 12th International Symposium on Ceramics in Medicine, Bioceramics, Vol.12, pp.429-432, 1999.10.10, Nara, Japan.

9)Y. Aburatani, S. Hayakawa, C. Ohtsuki*, A. Osaka (*Nara Institete of Science and Technology), "Synthesis of bioactive organic-inorganic hybrids reinforced with AEROSIL®", 12th International Symposium on Ceramics in Medicine, Bioceramics, Vol.12, pp.457-460, 1999.10.10, Nara, Japan.

10)S. Takashima*, S. Takemoto, S. Hayakawa, A. Osaka (*Co-operative Research Center, Okayama University), "Synthesis of blood compatible ceramic powders and new methods of examining anticlotting properties", 12th International Symposium on Ceramics in Medicine, Bioceramics, Vol.12, pp.551-554, 1999.10.11, Nara, Japan.

11)S. Hayakawa, A, Osaka, "Chemical State of Fluoride ions in Oxyfluoroborate and Oxyfluorosilicate Glass", 16th International Japan-Korea Seminar on Ceramics, A27, pp.153-157, 1999.11.30-12.2, Okayama, Japan.

12)K. Tsuru, S. Takemoto, S. Hayakawa, A. Osaka, "Apatite Formation on Electrochemically Treated Titanium", Materials Research Society 1999 Fall Meeting, Symposium DD:Mineralization in Natural and Synthetic Biomaterials DD7.4, pp.548, 1999.11.30, Boston, USA.