Preparation of Biomaterial Thin Films by Pulsed-Laser Deposition Technique.
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概要
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An overview is presented of applications of hydroxyapatite (HAp) thin films prepared using the pulsed-laser deposition (PLD) technique. The conditions for the formation of crystallized HAp films on various substrates, such as metals, alloys, oxides and polymers, are determined. Two different technological processes are performed for the formation of crystallized HAp films: post-annealing after amorphous deposition and <I>in situ</I> crystallization. The formation of crystallized HAp films on polymer substrates using the post-annealing method are also discussed. HAp films grown on lattice-matched material, <I>i. e</I>., Al<SUB>2</SUB>O<SUB>3</SUB> and ZnO, show a <I>c</I>-axis orientation. Such a result from a well-defined sample is suitable as the first step in the application to electronic devices. Furthermore, the mechanical properties of the HAp films are evaluated by the peeling-off test. Finally, the preliminary findings of the biological properties are studied by the fibroblast <I>in vitro</I> test. The results indicate that the HAp films formed by PLD are effective for various implant applications.
- 社団法人 レーザー学会の論文
社団法人 レーザー学会 | 論文
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