title: Production of nanoparticles from natural hydroxylapatite by laser ablation.
abstract: Laser ablation of solids in liquids technique has been used to obtain colloidal nanoparticles from biological hydroxylapatite using pulsed as well as a continuous wave (CW) laser. Transmission electron microscopy (TEM) measurements revealed the formation of spherical particles with size distribution ranging from few nanometers to hundred nanometers and irregular submicronic particles. High resolution TEM showed that particles obtained by the use of pulsed laser were crystalline, while those obtained by the use of CW laser were amorphous. The shape and size of particles are consistent with the explosive ejection as formation mechanism.
authors.affiliation: Dpto, Física Aplicada, Universidad de Vigo, Lagoas-Marcosende, 9, Vigo 36310, Spain. mohamed@uvigo.es.
authors.forename: Mohamed
authors.initials: M
authors.lastname: Boutinguiza
authors.forename: Rafael
authors.initials: R
authors.lastname: Comesaña
authors.forename: Fernando
authors.initials: F
authors.lastname: Lusquiños
authors.forename: Antonio
authors.initials: A
authors.lastname: Riveiro
authors.forename: Juan
authors.initials: J
authors.lastname: Pou