Biodegradable Inorganic-Organic Composite Artiticial Bone Substitue -Part2. Collagen purification and its physical and biological properties-

  • Hwal Suh (Institute of Biomedical Engineering, College of Medicine, Seoul National University)
  • Published : 1994.09.01

Abstract

To develop an artificial bone substitute that is gradually degraded and replaced by the regenerated natural bone, the authors designed a composite that is consisted of calcium phosphate and collagen. To use as the structural matrix of the composite, collagen was purified from human umbilical cord. The obtained collagen was treated by pepsin to remove telopeptides, and finally, the immune-free atel- ocollagen was produced. The cross linked atelocollagen was highly resistant to the collagenase induced collagenolysis. The cross linked collagen demonstrated an improved tensile strength.

Keywords

References

  1. J KOSOMBE v.15 Biodegradable Inorganic-Organic Composite Artificial Bone Substitute. Synthesis and Crystallinities of Inorganic Substances Lee,C.K.;Suh,H.
  2. Human Physiology(4th ed.) Fox,S.I.
  3. J. Oral Maxillofac Surg v.48 Increased osteogenesis in alveolar wound healing elicted by demineralized bone powder. Guglielmotti,M.B.;Alonso,C.;Itoiz,M.E.;Cabrini,R.L.
  4. J Craniomaxillofac Surg v.21 Immediate reconstruction and alloplastic matrices in baboons. Amonti,U.;Petit,J.C.;Moehl,T.;van den Heever,B.;Wyk,J.
  5. Proceedings, The 25th International Biomaterials Symposium Ideal biomaterial-Embryonic collagen. Ohno,M.
  6. J Biol Chem. v.259 Human placenta type V collagens. Evidence for the existence of an ${\alpha}1(V){\alpha}2(V){\alpha}3(V)$ collagen molecule Niyibizi.C.;Fietzek,P.P.;van der Rest,M.
  7. Method of type I collagen purification from human umbilical cord. Pat Pend 94-9735 Suh,H.
  8. J. Biomed. Mater. Res. v.24 Development and testing of a human collagen graft material. Quteish,D.;Singh,G.;Dolby,A.E.
  9. Collagen Nimni,M.E.
  10. J. Biomed. Mater. Res. v.21 Chemically modified collagen : biomaterial for tissue replacement. Nimni,M.E.;Cheung,D.;Strates,B.;Kodama,M.;Sheikh,K.