Moreover, bioactive coatings of calcium phosphates, hydroxyapatite
and even bioactive glasses were obtained by physical techniques
(plasma spray, magnetron sputtering, Ion Beam Assisted deposition,
pulsed laser deposition), as well as by chemical ones (sol–gel, biomimetic
processes, electrochemical deposition, electrophoretic deposition,
micro-arc oxidation, ultrasonic spray pyrolysis). Finally, the discrete
crystalline deposition of calcium phosphate nano-crystals was proposed