The presence of fluoride, lithium and carbonate group within hydroxyapatite occurring naturally the body provides basis for investigating sintering ability co-substituted hydroxyfluorapatites nanopowders use as biomaterials. Ca10-xLix(PO4)6-x(CO3)x(OH)F nanopowders, with x equal to 0, 0.5, 1, 1.5, 2 2.5 were prepared using mechanosynthesis their extensive characterization was realized. Substitu...

Hydroxyapatite (Ca10(PO4)6(OH)2, HAp), due to its high biocompatibility, is widely used as biomaterial. Doping with various ions of hydroxyapatite performed acquire properties close possible the biological apatite present in bones and teeth. In this research results a study on thin films co-doped nitrogen bromine (NBrHAp) are presented for first time. The NBrHAp suspension was obtained by perfo...

apatite (a); c-cpx, f – iron, m – merrillite, s – silica, p – plagioclase. CL picture is slightly zoomed out. SHOCK-INDUCED TEXTURE IN LUNAR MG-SUITE APATITE AND ITS EFFECT ON VOLATILE DISTRIBUTION. A. Cernok1, J. Darling2, L. White2, J.Dunlop2, and M. Anand1,3. 1Open University, School of Planetary Sciences, Walton Hall, MK7 6AA, United Kingdom ([email protected]), 2University of Portsmout...

introduction iron-apatite ore deposits well known as kiruna iron type formed in association with calc-alkaline volcanism from proterozoic to tertiary (hitzman et al., 1992). liquid immiscibility in an igneous system was proposed to explain the formation of the iron oxides accompanying apatite in mineralized zones (förster and jafarzadeh, 1994; daliran, 1999). the mode of ore formation however, ...

nowadays, titanium-based alloys are among the most attractive metallic materials for biomedical applications (as implants) due to their non-biodegradability, low density, good mechanical properties as well as their good biocompatibility. hydroxyapatite (ca10 (po4)6(oh)2, ha) has been widely used for biomedical applications due to its bioactive, biocompatible and osteoconductive properties. firs...

BACKGROUND A rapid expansion of hand, foot, and mouth disease (HFMD) outbreaks has occurred and caused deaths in China in recent years, but little is known about the other etiologic agents except enterovirus 71 (EV71) and coxsackievirus A 16 (CA16). The objective of this study is to determine the genotype compositions of enterovirus causing HFMD in Shanghai and identify any associations between...

Novel scaffolds composed of poly(L-lactic acid) (PLLA) skeleton covered with bonelike apatite or apatite/collagen composite were produced via a combined phase-separation technique and an accelerated biomimetic coating process. Saos-2 osteoblast-like cells were used to evaluate the cellular behaviors on these biomimetic coatings. Cell morphologies on the surfaces of PLLA scaffolds, PLLA scaffold...

Porous bioactive glasses are attractive for use as bone scaffolds. There is increasing interest in strontium containing bone grafts, since strontium ions are known to up-regulate osteoblasts and down regulate osteoclasts. This paper investigates the influence of partial to full substitution of strontium for calcium on the dissolution and phase formation of a multicomponent high phosphate conten...