نتایج جستجو برای: bioglass

تعداد نتایج: 453  

Journal: :Journal of materials science. Materials in medicine 2014
Imran M Asif Richard M Shelton Paul R Cooper Owen Addison Richard A Martin

Previous studies have suggested that incorporating relatively small quantities of titanium dioxide into bioactive glasses may result in an increase in bioactivity and hydroxyapatite formation. The present work therefore investigated the in vitro bioactivity of a titanium doped bioglass and compared the results with 45S5 bioglass. Apatite formation was evaluated for bioglass and Ti-bioglass in t...

2013
R. Touri F. Moztarzadeh Z. Sadeghian D. Bizari M. Tahriri M. Mozafari

Bioglass has been used for bone-filling material in bone tissue engineering, but its lean mechanical strength limits its applications in load-bearing positions. Carbon nanotubes (CNTs), with their high aspect ratio and excellent mechanical properties, have the potential to strengthen and toughen bioactive glass material without offsetting its bioactivity. Therefore, in this research, multiwall ...

2014
Xiaohong Wang Emad Tolba Heinz C. Schröder Meik Neufurth Qingling Feng Bärbel Diehl-Seifert Werner E. G. Müller

We investigated the effect of bioglass (bioactive glass) on growth and mineralization of bone-related SaOS-2 cells, encapsulated into a printable and biodegradable alginate/gelatine hydrogel. The hydrogel was supplemented either with polyphosphate (polyP), administered as polyP • Ca2+-complex, or silica, or as biosilica that had been enzymatically prepared from ortho-silicate by silicatein. The...

2015
Karolina Jurczyk Grzegorz Adamek Marcelina M. Kubicka Jaroslaw Jakubowicz Mieczyslaw Jurczyk

The article presents an investigation on the effectiveness of nanostructured titanium-10 wt% 45S5 Bioglass-1 wt% Ag composite foams as a novel class of antibacterial materials for medical applications. The Ti-based composite foams were prepared by the combination of mechanical alloying and a "space-holder" sintering process. In the first step, the Ti-10 wt% 45S5 Bioglass-1 wt% Ag powder synthes...

Journal: :Biomedical materials 2016
Saima Begum William E Johnson Tony Worthington Richard A Martin

In recent years, there has been considerable interest in the potential antibacterial properties that bioactive glasses may possess. However, there have been several conflicting reports on the antibacterial efficacy of 45S5 Bioglass(®). Various mechanisms regarding its mode of action have been proposed, such as changes in the environmental pH, increased osmotic pressure, and 'needle-like' sharp ...

2015
Yanrong Cai Lieping Guo Hongxing Shen Xiaofei An Hong Jiang Fang Ji Yunfei Niu

Biocomposite scaffolds of lithium (Li)-containing mesoporous bioglass and monomethoxy poly(ethylene glycol)-poly(D,L-lactide-co-glycolide)-poly(L-lysine) (mPEG-PLGA-b-PLL) copolymer were fabricated in this study. The results showed that the water absorption and degradability of Li-containing mesoporous bioglass/mPEG-PLGA-b-PLL composite (l-MBPC) scaffolds were obviously higher than Li-containin...

2016
Felipe Orgaz Daniel Amat Olga Szycht Aleksandra Dzika Flora Barba José Becerra Leonor Santos-Ruiz

A novel bioactive glass scaffold ICIE16/BSG has been prepared from a mixture of two different melt-derived glasses: a silicate bioglass (ICIE16) and a borosilicate bioglass (BSG). Combined processing techniques (gel casting and foam replication) were used to form three-dimensional, interconnected porous monolith scaffolds (Orgaz et al., 2016) [1]. They were then nitrided with a hot ammonia flow...

2010
J. Tagami

Bioglass 45S5 is a bioactive glass that can create a layer of calcium-phosphate crystals on mineralized hard tissues. In this study, 45S5 bioglass was mixed with phosphoric acid and irradiated with CO2 laser and examined as a possible aid in the treatment of dentin hypersensitivity. The dentinal surface modified by the aforementioned technique was chemically and micro-morphologically examined w...

2017
Nazmi Ekren

Productions, mechanical and microstructural analyses of bioglass/sheep hydroxyapatite (SHA) composites are introduced. Bioglass were added to calcinated SHA with various concentrations 5 and 10 wt. %. Powder mixture compacted with pressure (350 MPa) in steel moulds to obtain cylinder samples. As the next step, samples sintered in air at various temperatures (1000, 1100, 1200, 1300 C for 4 hrs)....

2014
Wei Lu Kun Ji Jennifer Kirkham Yu Yan Aldo R. Boccaccini Margaret Kellett Yan Jin X. B. Yang Xuebin B Yang

Translational research in bone tissue engineering is essential for ‘bench to bedside’ patient benefit. However, the idea combination of stem cells and biomaterial scaffolds for bone repair/regeneration is still unclear. The aim of this study was to investigate the osteogenic capacity of a combination of poly(DL-lactic acid) (PDLLA) porous foams containing 5 and 40 wt% of Bioglass ® particles wi...

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