نتایج جستجو برای: magnetical nanocomposites

تعداد نتایج: 15162  

Journal: :Experimental oncology 2010
N F Gamaleia E D Shishko G A Dolinsky A B Shcherbakov A V Usatenko V V Kholin

AIM To synthesize a conjugate of hematoporphyrin with gold nanoparticles, and to evaluate its photodynamic activity in experiments on cultures of transformed cells. METHODS nanosized gold particles and nanocomposites synthesis methods, cell culture methods, photobiology methods, trypan blue dye exclusion test, chemiluminescence assay. RESULTS Various hematoporphyrin-gold nanocomposites were...

2007
David Chu Quang Nguyen Donald G. Baird

The effect that polymer molecular weight has on the dispersion of relatively polar montmorillonite (MMT) in nonpolar, unmodified high density polyethylene (HDPE) was examined. Polymer layered silicate (PLS) nanocomposites were prepared via melt compounding in a single screw extruder using three unmodified HDPE matrices of differing molecular weight and organically modified MMT (organoclay) in c...

Journal: :Chemical communications 2013
Liu Deng Ling Liu Chengzhou Zhu Dan Li Shaojun Dong

Hybrid AuNCs@SiO2@GQDs nanocomposites were synthesized via a multistep procedure; GQDs located near AuNCs showed enhanced fluorescent intensities and improved photostabilities. AuNCs@SiO2@GQDs nanocomposites allowed specific visualization of EGFR on cancer cells.

Journal: :journal of nanostructures 0
gholamreza nabiyouni department of physics, faculty of science, arak university, arak 38156-88349, iran hamed halakoui department of physics, faculty of science, arak university, arak 38156-88349, iran davood ghanbari young researchers club, arak branch, islamic azad university, arak, iran

the lead ferrite (pbfe12o19) nanoparticles were prepared by a simple and short time microwave method. lead nitrate, iron nitrate hydrate, surfactants, and ethylene glycol were used as precursor materials. the effect of surfactants on the morphology and particle size of the magnetic products was investigated. the prepared magnetic products were study by x-ray diffraction (xrd), scanning electron...

Journal: :علوم و تکنولوژی پلیمر 0
محمد برمر مهدی باریکانی مجتبی فریدون نیا

in this work, a thermoplastic polyurethane elastomer (tpue) model based on polytetramethylene glycol, toluene diisocyanate and 1,4-butanediol was selected and synthesized. according to this model two types of polyurethane nanocomposites were prepared by in situ polymerization and melt intercalation procedures. the organo-modified nanoclay was used in nanocomposites samples in 0.4 weight percent...

2012
L. S. Wang

Nanoparticles with sizes ranging between objects and microparticles (e.g. atom) have attracted much attention. These particles with various specialized functions not only deepen our understanding of nature, but also serve as the basis for the development of new advanced technology. The successful application of nanoparticles depends upon both the synthesis and the surface modification of these ...

2017
Xiaosong Jiang Tingfeng Song Zhenyi Shao Wanxia Liu Degui Zhu Minhao Zhu

Multi-walled carbon nanotubes (MWCNTs) and graphenes have been taken for novel reinforcements due to their unique structure and performance. However, MWCNTs or graphenes reinforced copper matrix composites could not catch up with ideal value due to reinforcement dispersion in metal matrix, wettability to metal matrix, and composite material interface. Taking advantage of the superior properties...

2014
Bullo Saifullah Mohamed E El Zowalaty Palanisamy Arulselvan Sharida Fakurazi Thomas J Webster Benjamin M Geilich Mohd Zobir Hussein

The treatment of tuberculosis by chemotherapy is complicated due to multiple drug prescriptions, long treatment duration, and adverse side effects. We report here for the first time an in vitro therapeutic effect of nanocomposites based on para-aminosalicylic acid with zinc layered hydroxide (PAS-ZLH) and zinc-aluminum layered double hydroxides (PAS-Zn/Al LDH), against mycobacteria, Gram-positi...

Journal: :Physical chemistry chemical physics : PCCP 2012
Weifeng Zhang Fu Liu Qianqian Li Qingliang Shou Jipeng Cheng Li Zhang Bradley J Nelson Xiaobin Zhang

A method for producing nanocomposites of transition metal oxides A(3)O(4) (where A represents Mn, Fe or Co) and graphene nanosheets (GNS) is presented. The reduction of graphene oxide (GO) and the formation of A(3)O(4) nanoparticles (NPs) were carried out simultaneously during the reaction. The electrochemical properties of A(3)O(4)-GNS nanocomposites as electrode materials for supercapacitors ...

2016
C. El Bekkali H. Bouyarmane S. Saoiabi M. El Karbane A. Rami A. Saoiabi M. Boujtita A. Laghzizil

Hydroxyapatite/titania nanocomposites (TiHAp) were synthesized from a mixture of a titanium alkoxide solution and dissolution products of a Moroccan natural phosphate. The simultaneous gelation and precipitation processes occurring at room temperature led to the formation of TiHAp nanocomposites. X-ray diffraction results indicated that hydroxyapatite and anatase (TiO2) were the major crystalli...

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