Special Issue Paper Diamond-like carbon coatings with Ca-O-incorporation for improved biological acceptance

Abstract. Diamond-like carbon (DLC) coatings were modified by doping the thin films with Ca-O compounds. Raman spectroscopy indicates growth of sp 2 -hybridised, ordered regions in size and/or number within the amorphous carbon-hydrogen network as a result of the Ca-O-incorporation. CaCO 3 was identified by X-ray induced photoelectron spectroscopy. Proliferation and morphology of L929 mouse fibroblasts reveal improved biocompatibility of Ca-O-modified DLC

Optimierung der Belastbarkeit und Biokompatibilitaet von Knochenersatzwerkstoffen durch angepasste Verstaerkung mit C-, Al_2O_3- und SiO_2-Fasern Schlussbericht

SIGLEAvailable from TIB Hannover: F03B579 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung und Forschung, Berlin (Germany)DEGerman

Experimental study of nano-HA artificial bone with different pore sizes for repairing the radial defect

The purpose of this study was to examine the repairing ability of nano-hydroxyapatite (nano-HA) artificial bone with different pore sizes. Animal models of bone defects were created in both radii of 60 New Zealand white rabbits. The bone defects in A, B, and C groups were repaired with nano-HA artificial bone with three different pore sizes while those in group D were left unrepaired. The repairing ability of material was evaluated by gross observation, histopathological study, X-ray examination, scanning electron microscope (SEM), and biomechanical analysis in the fourth, eighth, and 12th weeks. Group B stimulated more bone formation than the other groups. Nano-HA artificial bone is capable of good bone formation and biocompatibility. The ability of bone formation of nano-HA artificial bone may be affected significantly by the pore size. The material with pore size in the range of 100 –250 μm has a greater ability to form bone