Bioactive glass thin films deposited by magnetron sputtering technique: The role of working pressure

Superior biofunctionality of dental implant fixtures uniformly coated with durable bioglass films by magnetron sputtering

“…Recent progresses made by our research team on the BG coatings [47,51,52] encouraged us to apply the optimized deposition regimes to biofunctionalize real dental implants. The aims of this study include: i) setting a facile way to uniformly deposit, by radio-frequency magnetron sputtering (RF-MS), BG coatings with suitable mechanical resistance and biological behaviour onto dental screws that allow good cellular adhesion and proliferation without intervening in the complex mechanism that is stem cell differentiation; ii) contributing to the future development of a new generation of implants with superior lifetime and less revision.…”

The structure and properties of the carbon non-wovens modified with bioactive nanoceramics for medical applications

“…Within the range of 1050-1100 cm −1 bands related to the presence of P\O\P and Si\OP appear, as well as the additional bands corresponding to the bending vibration of O\Si\O and stretching of Si\O\Si [24,25]. Fig.…”

Preferential sputtering in phosphate glass systems for the processing of bioactive coatings

“…More recently Stan et al investigated the effects of processing parameters from bioactive silicate glass targets, including bioglass® 45S5. He was unable to obtain a stoichiometric 45S5 composition due to preferential sputtering, however he found that the composition of deposited thin films, could be manipulated by varying deposition pressure and atmosphere [25][26][27][28]. Berbecaru et al deposited a 0.5 μm thick bioactive glass coating (SiO 2 -40.5 CaO-32 P 2 O 5 -1.5 Na 2 O-9 MgO-17 mol%) on silicon substrates which were subsequently immersed for 30 days in SBF, and appeared to follow the stages of Hench's bioactivity theory, beginning with the solubility and degradation of the silicon network, followed by the formation of a calcium-phosphate apatite layer at the surface.…”

“…When bombarded with charged argon particles, atoms are preferentially ejected from a glass structure [25][26][27][28][29]37] a relationship termed relative sputtering yield. Sputtering yields are defined as the number of sputtered atoms/incident energetic ions; however, in relative terms, this refers to differential sputtering rates for individual elements, or elements within a compound.…”