Document Detail


Porous hydroxyapatite reinforced with collagen protein.
MedLine Citation:
PMID:  8922236     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Porous hydroxyapatite (HAP) with certain porosity and pore size was prepared, and incorporated with bovine collagen protein. The composition and structure of the HAP was confirmed by X-Ray Diffraction (XRD) and ICP. Scanning Electron Microscopy (SEM), mechanical tests and in vitro degradation were performed. Collagen protein with low antigenicity was obtained from bovine tendon by enzyme digestion, and was then forced to fill in the HAP matrix to form composites. Scanning Electron Microscopy (SEM), Mechanical tests and in vitro degradation were performed. The test results show that first, HAP thus made has specific pore size and directions; second, mechanical properties of the composites have been markedly improved; third, the in vitro degradation rate of the composite is almost the same as and mainly controlled by the degradation rate of collagen.
Authors:
Q Q Zhang; L Ren; C Wang; L R Liu; X J Wen; Y H Liu; X D Zhang
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Artificial cells, blood substitutes, and immobilization biotechnology     Volume:  24     ISSN:  1073-1199     ISO Abbreviation:  Artif Cells Blood Substit Immobil Biotechnol     Publication Date:  1996 Nov 
Date Detail:
Created Date:  1997-03-04     Completed Date:  1997-03-04     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9431307     Medline TA:  Artif Cells Blood Substit Immobil Biotechnol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  693-702     Citation Subset:  IM    
Affiliation:
Department of Biomaterials, Chinese Academy of Medical Sciences, Tianjin, P.R. China.
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MeSH Terms
Descriptor/Qualifier:
Animals
Biomechanics
Biomedical Engineering
Bone Substitutes / chemistry*,  metabolism
Cattle
Ceramics / chemistry*,  metabolism
Collagen / chemistry*,  metabolism
Durapatite / chemistry*,  metabolism
Chemical
Reg. No./Substance:
0/Bone Substitutes; 0/Ceramics; 1306-06-5/Durapatite; 9007-34-5/Collagen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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