نتایج جستجو برای: bioactive glass nanoparticles

تعداد نتایج: 206489  

2015
Albin Thomas Krishna C.R. Kolan Ming C. Leu Gregory E. Hilmas

Although implants made with bioactive glass have shown promising results for bone repair, their application in repairing load-bearing long bones is limited due to their low fracture toughness and fairly fast degradation response in vivo. In this paper, we describe our investigation of freeform extrusion fabrication of silicate based 13-93 bioactive glass scaffolds reinforced with titanium fiber...

Journal: :European review for medical and pharmacological sciences 2016
C-B Han S-C An

OBJECTIVE To explore the application value of injectable bioactive glass in the restoration of the oral bone defect. PATIENTS AND METHODS This study included 58 consecutive patients with oral bone defect > 1 mm, these patients were randomly assigned to a control group (n=26, Hydroxyapatite bioceramics) and an observation group (n=32, Injectable bioactive glass). The purpose of this study was ...

2009
Jin-Woo Park Jo-Young Suh

The guided bone regeneration (GBR) procedure has been used successfully when there is insufficient bone volume for implant placement 1-3) . Bone graft materials are used in conjunction with barrier membranes to improve the outcomes of GBR procedures: they stabilize the blood clot, prevent membrane shrinkage and maintain the space available for new bone formation beneath the membrane 4-6) . Auto...

Journal: :Biomaterials 2007
Gwendolen C Reilly Shula Radin Andrew T Chen Paul Ducheyne

Bioactive glass is used as both a bone filler and as a coating on implants, and has been advocated as a potential osteogenic scaffold for tissue engineering. Rat-derived mesenchymal stem cells (MSCs) show elevated levels of alkaline phosphatase activity when grown on 45S5 bioactive glass as compared to standard tissue culture plastic. Similarly, exposure to the dissolution products of 45S5 elev...

Journal: :Biomaterials 2002
J A Roether A R Boccaccini L L Hench V Maquet S Gautier R Jérĵme

Bioactive and bioresorbable composite materials were fabricated using macroporous poly(DL-lactide) (PDLLA) foams coated with and impregnated by bioactive glass (Bioglass) particles. Stable and homogeneous Bioglass coatings on the surface of PDLLA foams as well as infiltration of Bioglass particles throughout the porous network were achieved using a slurry-dipping technique in conjunction with p...

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The purpose of this study was to fabricate and characterize nanocomposite powder from 45S5 bioactive glass/ fluorapatite. Nanocomposites containing 10, 15 and 20 wt.% of fluorapatite were synthesized by sol-gel method. XRD and FT-IR analyses were used to characterize and evaluate the produced nanocomposites. The results of XRD and FT-IR analysis indicated the successful synthesis of high purity...

رحیم نژاد, مصطفی, صادقی آقباش, منا, پورعلی, معصومه,

Background and purpose: Improvement of anti-bacterial properties of restorative materials to deal with microbes causing secondary caries of tooth has attracted interest of many researchers. Thus, in this study the antibacterial effect of zinc phosphate nanoparticles, synthesized with biological method, was investigated by adding it to glass ionomer cement against the Streptococcus mutans. Ma...

Journal: :The Journal of chemical physics 2013
Sivasurender Chandran J K Basu M K Mukhopadhyay

We report the variation of glass transition temperature in supported thin films of polymer nanocomposites, consisting of polymer grafted nanoparticles embedded in a homopolymer matrix. We observe a systematic variation of the estimated glass transition temperature T(g), with the volume fraction of added polymer grafted nanoparticles. We have correlated the observed T(g) variation with the under...

2011
Swapan Kumar Sarkar Byong Taek Lee

Bioactive glasses were synthesized in an inexpensive hydrothermal chemical route by the use of microwave energy irradiation. Compositional changes were carried out to synthesis bioactive glass with different Si content. Densification behavior was investigated by microwave sintering process from 700 °C to 1000 °C temperature. The powders were characterized for their physical and morphological ch...

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