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Surface Modification of Bio-Active Ceramic (Artificial Bone) by Ion Implantation

Published online by Cambridge University Press:  15 February 2011

G. H. Takaoka ,
R. Tanaka ,
H. Usui ,
S. K. Koh ,
M. I. Current ,
I. Yamada ,
S. Akamatsu  and
T. Kokubo
G. H. Takaoka
Affiliation:
Ion Beam Engineering Experimental Laboratory, Kyoto University, Kyoto, Kyoto-Fu 606-01, Japan
R. Tanaka
Affiliation:
Ion Beam Engineering Experimental Laboratory, Kyoto University, Kyoto, Kyoto-Fu 606-01, Japan
H. Usui
Affiliation:
Ion Beam Engineering Experimental Laboratory, Kyoto University, Kyoto, Kyoto-Fu 606-01, Japan
S. K. Koh
Affiliation:
Ion Beam Engineering Experimental Laboratory, Kyoto University, Kyoto, Kyoto-Fu 606-01, Japan
M. I. Current
Affiliation:
Ion Beam Engineering Experimental Laboratory, Kyoto University, Kyoto, Kyoto-Fu 606-01, Japan
I. Yamada
Affiliation:
Ion Beam Engineering Experimental Laboratory, Kyoto University, Kyoto, Kyoto-Fu 606-01, Japan
S. Akamatsu
Affiliation:
Institute of Chemical Research, Kyoto University, Uji, Kyoto-Fu 611, Japan
T. Kokubo
Affiliation:
Institute of Chemical Research, Kyoto University, Uji, Kyoto-Fu 611, Japan
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Abstract

Glass-ceramics (A-W) containing apatite and wollastonite phases have been developed that show good bio-compatibility and rapidly form chemical bonds with living bone. The glass-ceramic (A-W) was implanted with 200 keV Zr and Ar ions at doses of 1E15 to 1E17 ions/sq.cm. It was found that the Zr ion implantation was effective for obtaining high mechanical strength in simulated body fluid. The increase of the mechanical strength can be considered to be due to the formation of Zr and O bonds by ion implantation. The bioactivity of the implanted ceramics remained, and was improved after soaking in the simulated body fluid. In the case of Ar ion implantation, the fracture strength was not improved. However, the bioactivity was strong and improved with increase of the time soaked in the simulated body fluid.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 252: Symposium T – Tissue-Inducing Biomaterials , 1991 , 23
Copyright
Copyright © Materials Research Society 1992

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References

REFERENCES

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