Micron-Size Particles Emission from Bioceramics Induced by Pulsed Laser Deposition

Article type: Research Article

Authors: Torrisi, L.

Affiliations: Dipartimento di Fisica, Universita di Messina, Ctr. Papardo, 31-98166 S. Agata, Messina, Italy

Abstract: Pulsed laser deposition of hydroxyapatite is applied to cover titanium medical prothesis. Laser irradiation of ceramics by power-pulsed ruby laser produces high velocity micron-size particles emission with a narrow ejection plume directed normally to the target surface. Photoemitted particles are deposited on a metal surface at 400°C to obtain a granular film, stoichiometric, polycrystalline, and very adherent to the substrate. Deposited films are highly biocompatible and may be used to induce osteointegration processes of the implanted prothesis with the bone tissues. The comparison between laser and plasma spray depositions of biocerarnics is discussed.

Keywords: hydroxyapatite, photodeposition, plasma spray, medical prothesis

DOI: 10.3233/BME-1993-3105

Journal: Bio-Medical Materials and Engineering, vol. 3, no. 1, pp. 43-49, 1993