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Journal of Materials Science

, Volume 42, Issue 24, pp 10138–10142 | Cite as

Sodium silicate bonded borate glass scaffolds for tissue engineering

  • Wen LiangEmail author
  • Meng Wang
  • Delbert E. Day
  • Christian Rüssel
Article

Abstract

Borate and silicate glass particles and microspheres with size distributions in the range of approximately 100–400 micron were loosely compacted and bonded by sodium silicate solution to prepare resorbable, porous glass constructs with porosity 30–50%. Conversion of the binding borate glass to hydroxyapatite was investigated by measuring the weight loss of the constructs in a solution of 0.25 M K2HPO4 with a pH value of 9.0 at 37 °C, as a function of time. Almost full conversion of the borate glass to hydroxyapatite was achieved in less than 6 days. X-ray diffraction revealed an initially amorphous product that subsequently crystallized to hydroxyapatite.

Keywords

Hydroxyapatite B2O3 Calcium Phosphate Sodium Silicate Bioactive Glass 

Notes

Acknowledgements

This project is financially sponsored by Shanghai Pujiang Programme. The authors wish to acknowledge the valuable discussion with Prof. D E Day in the Materials Research Center, University of Missouri-Rolla.

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Wen Liang
    • 1
    Email author
  • Meng Wang
    • 1
  • Delbert E. Day
    • 2
  • Christian Rüssel
    • 3
  1. 1.Research Institute of BiomaterialsEast China University of Science and TechnologyShanghaiChina
  2. 2.Materials Research CenterUniversity of Missouri-RollaRollaUSA
  3. 3.Otto-Schott-InstitutUniversität JenaJenaGermany

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