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Bioactive comparison of a borate, phosphate and silicate glass

Published online by Cambridge University Press:  01 January 2006

Wen Liang ,
Christian Rüssel ,
Delbert E. Day  and
Günter Völksch
Wen Liang*
Affiliation:
Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, P.R. China
Christian Rüssel
Affiliation:
Otto-Schott-Institut, Universität Jena, Jena 07743, Germany
Delbert E. Day
Affiliation:
Materials Research Center, University of Missouri–Rolla, Rolla, Missouri 65409
Günter Völksch
Affiliation:
Otto-Schott-Institut, Universität Jena, Jena 07743, Germany
*
a)Address all correspondence to this author. Present address: Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, P.R. China. e-mail: wenliang93@yahoo.com
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Abstract

A borate glass, phosphate glass, and silicate glass were converted to hydroxyapatite (HA) by soaking the substrates in a solution of K2HPO4 with a pH value of 9.0 at 37 °C. The weight loss of the substrates was studied as a function of time. Unlike the silicate glasses, the reaction processes of the borate glasses and phosphate glasses were bulk dissolution. X-ray diffraction and scanning electron microscopy revealed an initially amorphous product that subsequently crystallized to HA. The data suggest good bioactive characteristics for the borate and phosphate glass and the potential use of them as a favorable template for bone-tissue formation.

Keywords

AmorphousGlassScanning electron microscopy (SEM)
Type
Articles
Information
Journal of Materials Research , Volume 21 , Issue 1 , January 2006 , pp. 125 - 131
Copyright
Copyright © Materials Research Society 2006

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