Surface characterisation of the evolving nature of radio frequency (RF) magnetron sputter deposited calcium phosphate thin films after exposure to physiological solution

The biocompatibility of nanostructured calcium phosphate coated on micro-arc oxidized titanium

“…Concerning the stability of coating, much efforts have been devoted to determine the immersion behavior of calcium phosphate coating in solutions with ionic composition similar to the inorganic fraction of blood plasma, such as phosphate buffered saline (PBS) solution [9], Hank's balanced salt solution (HBSS) [10,11] and Kokubo's simulated body fluid (SBF) [11,12]. These in vitro studies are important in a practical sense in that it could give some indication of the in vivo behavior of the coating.…”

Modification of the structure and composition of Ca10(PO4)6(OH)2 ceramic coatings by changing the deposition conditions in O2 and Ar

“…The of Ca/P ratio deviation from the stoichiometric value may be due to a surface layer with a composition differing from that of the bulk material. A difference in the surface and bulk stoichiometric ratios has [12,14,15]. The SEM micrographs of HAp samples showed a well defined platelet morphology.…”

“…Parameters, such as initial target 6 To whom any correspondence should be addressed. stoichiometry [10], gas pressure, discharge power, annealing and immersion treatment conditions [11], significantly affect the characteristics of the coatings [12]. The present study's aim was to analyze the effect of the different deposition conditions on the properties of hydroxyapatite ceramic coatings.…”

Nanohydroxyapatite coating on a titanium–niobium alloy by a hydrothermal process

“…Among the current coating techniques, sputtering [13], the solgel process [14], the electrophoretic method [15], E-beam deposition [16] and the biomimetic process [17][18][19] are used to produce nano-HA coatings on the surface of metallic implants. Sputtering method exhibits low effectiveness and high operating cost [20].…”