Mechanism of Apatite Formation on Bioactive Titanium Metal
AbstractThe present authors previously showed that titanium metal, which was exposed to 5.OMNaOH solution at 60°C for 24 h and heat-treated at 600°C for 1 h, spontaneously forms a bonelike apatite...
View ArticleComposition and structure of apatite formed on organic polymer in simulated...
AbstractApatite layer was formed on polyethyleneterephthalate (PET) substrate by the following biomimetic process. The PET substrate was placed on granular particles of a CaO, SiO2-based glass in...
View ArticleFormation of bioactive functionally graded structure on Ti-6Al-4V alloy by...
AbstractAn Al- and V-free sodium titanate hydrogel layer with a graded structure where the sodium titanate gradually decreases toward the interior, was formed on the surface of Ti-6Al-4V alloy, when...
View ArticlePreparation of Bioactive PDMS-Modified CaO–SiO2–TiO2 Hybrids by the Sol-Gel...
AbstractMuch attention has been focused on the development of a new type of bioactive material with mechanical properties analogous to those of natural bone. The present authors previously showed that...
View ArticleQuantification of the expression levels of lysosomal cysteine proteinases in...
AbstractCathepsin K is a lysosomal cysteine proteinase (LCP) predominantly expressed in osteoclasts. This study was conducted to evaluate the improtance of human cathepsin K for osteoclastic bone...
View ArticleProcess of calcification on artificial materials
Summary CaO, SiO2-based glasses form the bonelike apatite on their surfaces in an acellular simulated body fluid (SBF) with ion concentrations nearly equal to those of the human blood plasma. The...
View ArticleBioactivity and Mechanical Properties of Polydimethylsiloxane (PDMS)-CaO-SiO2...
AbstractMuch attention has been focused on the development of a new type of bioactive material with mechanical properties analogous to those of the natural bones. It has been reported that some...
View ArticleEffect of heat treatment on bioactivity and mechanical properties of...
AbstractCrack- and pore-free transparent monolithic disks of polydimethylsiloxane (PDMS)- modified CaO-SiO2-TiO2 hybrids were obtained by hydrolysis and polycondensation of PDMS, tetraethoxysilane,...
View ArticleEffect of thermal treatment on apatite-forming ability of NaOH-treated...
AbstractThe prerequisite for an artificial material to bond to living bone is the formation of bonelike apatite on its surface in the body. This apatite can be reproduced on its surface even in an...
View ArticleEnhancement of bonding strength by graded structure at interface between...
AbstractTantalum metal is a candidate for use as an implant material in high load-bearing bony defects, due to its attractive features such as high fracture toughness and high workability. This metal,...
View ArticleBioactivity and mechanical properties of polydimethylsiloxane (PDMS)–CaO–SiO2...
AbstractPolydimethylsiloxane (PDMS)–CaO–SiO2 hybrids with starting compositions containing PDMS/(Si(OC2H5)4+PDMS) weight ratio=0.30, H2O/Si(OC2H5)4 molar ratio=2, and Ca(NO3)2/Si(OC2H5)4 molar...
View ArticleApatite-forming ability of glass-ceramic apatite–wollastonite – polyethylene...
AbstractThe bioactivity of a range of glass-ceramic apatite–wollastonite (A–W) – polyethylene composites (AWPEXs) with glass-ceramic A–W volume percentages ranging from 10 to 50, has been investigated...
View ArticleApatite formation on CaO-free polydimethylsiloxane (PDMS)-TiO2 hybrids
AbstractPolydimethylsiloxane (PDMS)-TiO2 hybrids with PDMS (M=550)/tetraethylorthotitanate molar ratios at 0.27, 0.68 and 1.35, i.e. Si/Ti atomic ratios at 2, 5 and 10 (hybrids PD2, PD5 and PD10,...
View ArticleREVIEW Bioactive metals: preparation and properties
AbstractSome ceramics, such as Bioglass®, sintered hydroxyapatite, and glass-ceramic A-W, spontaneously form a bone-like apatite layer on their surface in the living body, and bond to bone through the...
View ArticleApatite-forming ability of alginate fibers treated with calcium hydroxide...
AbstractCalcium alginate fibers were prepared by extruding an aqueous sodium alginate solution into an aqueous calcium chloride solution. The fibers were treated with a saturated aqueous calcium...
View ArticleMechanical behavior of bioactive composite cements consisting of resin and...
AbstractTime-dependent strength behavior was investigated for bisphenol-a-glycidyl methacrylate/triethylene glycol dimethacrylate (Bis-GMA/TEGDMA) resin cements combined with glass–ceramic A-W filler...
View ArticleSurface modification of organic polymers with bioactive titanium oxide...
AbstractPolyethylene (PE), polyethylene terephthalate (PET), ethylene-vinyl alcohol copolymer (EVOH), and poly(ε-caprolactam) (Nylon 6) were successfully modified with a thin crystalline titanium oxide...
View ArticleFunctionalization of different polymers with sulfonic groups as a way to coat...
AbstractCovalent coupling of sulfonic group (–SO3H) was attempted on different polymers to evaluate efficacy of this functional group in inducing nucleation of apatite in body environment, and...
View ArticleChapter 7 Properties of Bioactive Glasses and Glass-ceramics
AbstractA bioactive material is one that elicits a specific biological response at the interface of the material which results in the formation of a bond between the tissues and the material. A common...
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