نتایج جستجو برای: magnetical nanocomposites

تعداد نتایج: 15162  

2010
Kejian Wang

Extrudate swell is often observed to be weakened in nanocomposites compared to the pure polymer matrix. A theory quantifying this would be significant either for optimum processing or for understanding their viscoelasticity. A unified extrudate swell correlation with material properties and capillary parameters was suggested for polymer melt and their nanocomposites when considering the reservo...

Journal: :Small 2014
Jingying Li Qiusen Han Xinhuan Wang Ning Yu Lin Yang Rong Yang Chen Wang

A novel and convenient method to synthesize the nanocomposites combining graphene oxides (GO) with gold nanoparticles (AuNPs) is reported and their applications to modulate amyloid peptide aggregation are demonstrated. The nanocomposites produced by pulsed laser ablation (PLA) in water show good biocompatibility and solubility. The reduced aggregation of amyloid peptides by the nanocomposites i...

Journal: :Acta biomaterialia 2012
Yuandong Dou Chengtie Wu Jiang Chang

How to accurately control the microstructure of bioactive inorganic/organic nanocomposites still remains a significant challenge, which is of great importance in influencing their mechanical strength and biological properties. In this study, using a combined method of electrospinning and hot press processing, calcium silicate hydrate (CSH) nanowire/poly(L-lactide) (PLLA) nanocomposites with con...

2007
Shiren Wang Zhiyong Liang Giang Pham Young-Bin Park Ben Wang Chuck Zhang Leslie Kramer

This paper presents an effective technique to fabricate thermoplastic nanocomposites with high loading of well-dispersed single-walled carbon nanotubes (SWNTs). SWNT membranes were made from a multi-step dispersion and filtration method, and then impregnated with polycarbonate solution to make thermoplastic nanocomposites. High loading of nanotubes was achieved by controlling the viscosity of p...

2015
L Fernández-García C Pecharromán A Esteban-Cubillo P Tiemblo N García J L Menéndez

FeCo nanoparticles synthesized on sepiolite microparticles were used for the preparation of nanocomposites by melt compounding with polystyrene. Both, the sepiolite fibers and the nanoparticles were free of agglomeration, which allowed preparing nanocomposites with a homogeneous dispersion of the second phases, avoiding the usual agglomeration of the nanoparticles and minimizing light scatterin...

2017
Ruimin Fu Mingfu Zhu

Nowadays, the hummers method for preparation of graphene oxide (GO) was improved. The grapheme oxide @ Fe3O4 magnetic nanocomposites were synthesized by co-precipitation method. After analysing the morphology and structure of obtained nanocomposites by X-ray diffraction (XRD), transmission electron microscope (TEM) and Fourier transform infrared (FT-IR) spectroscopy, the result was shown as fol...

2012
Asya S. Levina Marina N. Repkova Zinfer R. Ismagilov Nadezhda V. Shikina Ernst G. Malygin Natalia A. Mazurkova Victor V. Zinov'ev Alexei A. Evdokimov Sergei I. Baiborodin Valentina F. Zarytova

Nanoparticles are used to solve the current drug delivery problem. We present a high-performance method for efficient and selective action on nucleic acid target in cells using unique TiO(2)·PL-DNA nanocomposites (polylysine-containing DNA fragments noncovalently immobilized onto TiO(2) nanoparticles capable of transferring DNA). These nanocomposites were used for inhibition of human influenza ...

2016
Yasir A. Haleem Pin Song Daobin Liu Changda Wang Wei Gan Muhammad Farooq Saleem Li Song

The concentration and small size of nanodiamonds (NDs) plays a crucial role in the mechanical performance of epoxy-based nanocomposites by modifying the interface strength. Herein, we systemically analyzed the relation between the high concentration and small size of ND and the fracture properties of its epoxy-based nanocomposites. It was observed that there is a two-fold increase in fracture t...

Journal: :Journal of materials chemistry 2009
Zhi Ya Ma Dosi Dosev Mikaela Nichkova Shirley J Gee Bruce D Hammock Ian M Kennedy

A facile homogenous precipitation method has been developed for the synthesis of multifunctional, magnetic, luminescent nanocomposites with Fe(3)O(4) nanoparticles as the core and europium-doped yttrium oxide (Y(2)O(3):Eu) as the shell. The nanocomposites showed both super-paramagnetic behavior and unique europium fluorescence properties with high emission intensity. Their surface has been modi...

Journal: :environmental health engineering and management 0
mohammad hossein tarmahi msc in water and wastewater engineering, department of chemistry, college of science, bandar abbas branch, islamic azad university, bandar abbas, iran farid moeinpour assistant professor of chemistry, department of chemistry, college of science, bandar abbas branch, islamic azad university, bandar abbas, iran

background: phosphorus is an indispensable element for the growth of animals and plants. there are several environmental problems related to phosphate; therefore, the technical and economic methods of removing phosphate are of great importance. this study evaluated the efficiency of polyaniline/ni0.5zn0.5fe2o4 magnetic nanocomposite in removing phosphate from aqueous environments. methods: the ...

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