Dental Materials Journal
Online ISSN : 1881-1361
Print ISSN : 0287-4547
ISSN-L : 0287-4547
Original Paper
Biomineralization on chemically synthesized collagen containing immobilized poly-γ-glutamic acid
Toshiki MIYAZAKIAkimasa KURAMOTOAtsuhide HIRAKAWAYuki SHIROSAKIChikara OHTSUKI
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2013 Volume 32 Issue 4 Pages 544-549

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Abstract

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.

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© 2013 The Japanese Society for Dental Materials and Devices
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