Precursor system for bio-integration ceramics and deposition onto tantala scaffold bone interface surfaces
MetadataShow full item record
Modern orthopaedic bone implants and joint replacements employ hydroxyapatite (HA) coatings to stimulate bone growth. Metal Ti and Ta implants are also moving to rough and porous contact surfaces to enhance integration and long term stability. The current methods of applying HA to implants have problems with adhesion, and there is no MOCVD precursor system reported in the literature. We have investigated a methanolic MOCVD precursor solution of calcium-dibenzoylmethane and trimethylphosphate in combination with a unique pulsed-pressure MOCVD (PP-MOCVD) process to apply a thin adherent film of HA onto a tantalum implant scaffold material. This technique will allow use of multiple precursors and is not limited by precursor volatility. Calcium and phosphorous deposits were identified at depths of up to 4 mm on the tantalum scaffold sample by EDS analysis.
Showing items related by title, author, creator and subject.
Facile synthesis of porous MgO-CaO-SnOx nanocubes implanted firmly on in situ formed carbon paper and their lithium storage propertiesZhao, B.; Yang, G.; Ran, R.; Kwak, C.; Jung, D.; Park, H.; Shao, Zongping (2014)Porous MgO-CaO-SnOx nanocubes (crystalline SnOx and amorphous MgO/CaO) were synthesized to implant firmly and uniformly onto in situ formed carbon paper by a facile route including a template-free growth process and ...
A distinct reactive oxygen species profile confers chemoresistance in glioma-propagating cells and associates with patient survival outcomeKoh, L.; Koh, G.; Ng, F.; Toh, T.; Sandanaraj, E.; Chong, Y.; Phong, M.; Tucker-Kellogg, G.; Kon, O.; Ng, W.; Ng, I.; Clement, M.; Pervaiz, Shazib; Ang, B.; Tang, C. (2013)Aims: We explore the role of an elevated O2-:H 2O2 ratio as a prosurvival signal in glioma-propagating cells (GPCs). We hypothesize that depleting this ratio sensitizes GPCs to apoptotic triggers. Results: We observed ...
Histomorphometric and radiographical changes after lumbar implantation of the PEEK nonfusion interspinous device in the BB.4S rat modelBarz, T.; Lange, J.; Melloh, Markus; Staub, L.; Merk, H.; Klöting, I.; Follak, N. (2013)STUDY DESIGN. An experimental animal study. OBJECTIVE. To investigate histomorphometric and radiographical changes in the BB.4S rat model after PEEK (polyetheretherketone) nonfusion interspinous device implantation. SUMMARY ...