The Atomic-Scale Interaction of Bioactive Glasses with Simulated Body Fluid

Article Preview

Abstract:

The formation of a carbonate-containing hydroxyapatite, HCAp, layer on bioactive calcium silicate sol-gel glass of the formula (CaO)0.3(SiO2)0.7 has been studied in-vitro in Simulated Body Fluid (SBF). Extended X-ray Absorption Fine Structure (EXAFS), X-ray Absorption Near Edge Structure (XANES), X-ray diffraction (XRD), and solid state nuclear magnetic resonance (NMR) measurements have been performed with results showing the formation of a significantly amorphous HCAp layer after less than 5 hours in solution.

You might also be interested in these eBooks

Info:

Periodical:

Materials Science Forum (Volumes 480-481)

Pages:

21-26

Citation:

Online since:

March 2005

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2005 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] R. Li, A.E. Clark, and L.L. Hench: Chemical Processing of Advanced Materials (Edited by Hench, L. L and West, J. K) (Wiley, New York, 1992) p.627.

Google Scholar

[2] M.M. Pereira, A.E. Clark, and L.L. Hench, J. Mater. Synth. Proc., Vol. 2, (1994), p.189.

Google Scholar

[3] A. Martinez, I. Izquierdo-Barba, and M. Vallet-Regi, Chem. Mater., Vol. 12(10), (2000), p.3080.

Google Scholar

[4] L.L. Hench, J. Am. Ceram. Soc., Vol. 74, (1991), p.1487.

Google Scholar

[5] E. Kontonaski, T. Zorba, L. Papadopoulou, X. Chatzistavrou, K. Paraskevopoulos, P. Koidis, Cryst. Res. Technol., Vol. 37(11), (2002), p.1165.

DOI: 10.1002/1521-4079(200211)37:11<1165::aid-crat1165>3.0.co;2-r

Google Scholar

[6] N. Sahai, and J.A. Tossell, J. Phys. Chem. B, Vol. 104, (2000), p.4322.

Google Scholar

[7] P. Saravanapavan, and L.L. Hench, Non-Cryst. Solids, Vol. 318, (2003), p.1.

Google Scholar

[8] D.C. Koningsberger, and R. Prins: X-ray Absorption, Principles, Applications, Techniques of EXAFS, SEXAFS and XANES (Wiley, New York, 1987) 200 100 0 -100 -200 b a ppm.

DOI: 10.1002/nadc.19880360617

Google Scholar

[9] N. Binsted, J.W. Campbell, S.J. Gurman, and P.C. Stephenson: EXAFS Analysis Programs, Warrington: Daresbury Laboratory (1991).

Google Scholar

[10] F.E. Sowrey, L.J. Skipper, D.M. Pickup, K.O. Drake, P. Saravanapavan, L.L. Hench, M.E. Smith and R.J. Newport, Phys. Chem. Chem. Phys., Vol. 6(1) (2004), p.188.

DOI: 10.1039/b311715d

Google Scholar

[11] J.C. Elliot, Structure and Chemistry of the Apatites and Other Calcium Orthophosphates (Elsevier, Amsterdam, 1994).

Google Scholar