Biomineralization on chemically synthesized collagen containing immobilized poly-γ-glutamic acid

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概要

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• Chemically synthesized collagen with a triple helix structure similar to that of natural collagen is attractive as a safe biomaterial. Hybrids of chemically synthesized collagen and apatite are proposed for novel bone substitutes. However their apatite-forming ability in simulated body fluid is still quite low. We examined acceleration of apatite formation on collagen by immobilized poly-γ-glutamic acid (PGA), which has excellent apatite-forming ability. Apatite was formed within 3 days when collagen was treated with PGA solutions containing an appropriate amount of CaCl2. A mixture of apatite and calcite was formed at high CaCl2 concentration. The present results indicate the possibility of preparing hybrid materials, with tailored mechanical and biological properties, based on chemically synthesized collagen.

著者

• Ohtsuki Chikara

  Graduate School Of Engineering Nagoya Univ.

• Miyazaki Toshiki

  Graduate School Of Life Sci. And Systems Engineering Kyushu Inst. Of Technol.

• Shirosaki Yuki

  Frontier Research Academy for Young Researchers, Kyushu Institute of Technology

• HIRAKAWA Atsuhide

  Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology

• KURAMOTO Akimasa

  Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology

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