نتایج جستجو برای: nano composite

تعداد نتایج: 168987  

2014
Chengde Gao Tingting Liu Cijun Shuai Shuping Peng

Graphene is a novel material and currently popular as an enabler for the next-generation nanocomposites. Here, we report the use of graphene to improve the mechanical properties of nano-58S bioactive glass for bone repair and regeneration. And the composite scaffolds were fabricated by a homemade selective laser sintering system. Qualitative and quantitative analysis demonstrated the successful...

Journal: :Frontiers in bioscience : a journal and virtual library 2005
Jun-Jie Zhu Jin-Zhong Xu Zheng Hu Hong-Yuan Chen

A novel method was used to prepare the nano-composite by assembling nanogold (NG) particles on the multiwall carbon nanotubes (MWNTs) surface. The nano-composite could be immobilized on a glassy carbon (GC) electrode to get a novel modified electrode. The electrode can easily immobilize the horseradish peroxidase (HRP) molecules to construct a reagentless biosensor. The NG particles in the comp...

Journal: :iranian journal of radiation research 0
s.m.j. mortazavi department of medical physics and medical engineering, and the center for research in radiation sciences (crrs), shiraz university of medical sciences, shiraz, iran m. kardan nuclear science and technology research institute, tehran, iran s. sina department of nuclear engineering, school of mechanical engineering, shiraz university, shiraz, iran h. baharvand department of polymer chemistry, iran polymer institute, tehran, iran n. sharafi department of radiology, school of paramedical sciences, shiraz university of medical sciences, shiraz, iran

background: polyethylene composites including boron can be used as an effective neutron shield. our investigation focuses on manufacturing borated polyethylene nano-composite. the purpose of this study is to design a radiation shield for use in both neutron and gamma fields. materials and methods: borated polyethylene shields containing 2%, and 5% weight percentage of boron nano-particles were ...

Journal: :journal of ultrafine grained and nanostructured materials 2014
mahsa barzegar vishlaghi abolghasem ataie

carbon nano-tube (cnt) reinforced metal matrix nano-composites have attracted a great deal of attention in recent years due to the outstanding physical and mechanical properties of cnts. however, utilizing cnt as reinforcement for alloy matrixes has not been studies systematically and is still a challenging issue. in the present study, cu80fe20/10cnt nanocomposite was synthesized by mechanical ...

Journal: :journal of dental research, dental clinics, dental prospects 0
farzin heravi dental research center, school of d mohammad ramezani pharmaceutical and biotechnology research center, school of pharmacy, mashhad university of medical sciences, mashhad, iran maryam poosti assistant professor, department of orthodontics, school of dentistry, islamic azad university, tehran, iran mohsen hosseini achool of dentistry, mashhad university of medical sciences, mashhad, iran arezoo shajiei farzaneh ahrari dental research center, school of dentistry, mashhad university of medical sciences, mashhad, iran

background and aims. incorporation of nano-particles to orthodontic bonding systems has been considered to prevent enamel demineralization around appliances. this study investigated cytotoxicity of transbond xt adhesive containing 1 wt% titanium dioxide (tio2) nano-particles. materials and methods. ten composite disks were prepared from each of the conventional and tio2-containg composites and ...

2010
Pierre Hillion

Electromagnetic wave propagation is first analyzed in a composite material mde of chiral nano-inclusions embedded in a dielectric, with the help of Maxwell-Garnett formula for permittivity and permeability and its reciprocal for chirality. Then, this composite material appears as an homo-geneous isotropic chiral medium which may be described by the Post constitutive relations. We analyze the pr...

2010
Brigitte Zimmerli Matthias Strub Franziska Jeger Oliver Stadler Adrian Lussi

After the establishment of composite as a restorative material, there was an attempt to categorise the different composite types according to filler size (Lutz & Philips 1983). This classification does not do justice to today’s composites, since most of the composite materials belong to the nanocomposites, nano-filled composites, nano-filled hybrid composites or micro-hybrid composites. Althoug...

Journal: :Journal of Engineered Fibers and Fabrics 2012

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