نتایج جستجو برای: magnetic nano particle

تعداد نتایج: 547752  

2015
Andrea L. Rodarte Fredy Cisneros Jason E. Hein Sayantani Ghosh Linda S. Hirst

Quantum dot/liquid crystal nano-composites are promising new materials for a variety of applications in energy harvesting, displays and photonics including the liquid crystal laser. To realize many applications, however, we need to control and stabilize nano-particle dispersion in different liquid crystal host phases and understand how the particles behave in an anisotropic fluid. An ideal syst...

Journal: :Journal of nanoscience and nanotechnology 2009
Baek-Chul Kim S J Park M S Cho Y Lee J D Nam H R Choi J C Koo

Present work delivers a systematical evaluation of actuation efficiency of a nano-particle electrode conducting polymer actuator fabricated based on Nitrile Butadiene Rubber (NBR). Attempts are made for maximizing mechanical functionality of the nano-particle electrode conducting polymer actuator that can be driven in the air. As the conducting polymer polypyrrole of the actuator is to be fabri...

2017
Lorenzo Rosa Jonathan Blackledge Albert Boretti

This paper reviews some of the major and most recent advances in nanoscale-magnetic resonance imaging (nano-MRI) for personalized medicine (PM). Nano-MRI may drastically expand the capabilities of the traditional magnetic resonance images (MRI), down to the nanometer scale and possibly, in the near future, at the atomic scale. Nano-MRI is potentially able to observe structures which cannot be s...

2010
K. Lehtipalo M. Kulmala M. Sipilä T. Petäjä

The detailed mechanism of secondary new particle formation in the atmosphere is still under debate. It is proposed that particle formation happens via activation of 1–2 nm atmospheric neutral molecular clusters and/or large molecules. Since traditional instrumentation does not reach these sizes, the hypothesis has not yet been verified. By directly measuring particle size distributions down to ...

2005
Klaus Iglberger Nils Thürey Ulrich Rüde Hans-Joachim Schmid Wolfgang Peukert

The following work presents a way to simulate the nano-particle behavior in a flow by coupling the Lattice Boltzmann Method to a rigid body physics engine. By extending the basic fluid simulation for the treatment of curved particle surfaces and by a force interaction method, the fluid forces acting on the nano-particles can be calculated. With this force interaction between the fluid and the p...

Journal: :Optics express 2009
Yiyang Gong Selçuk Yerci Rui Li Luca Dal Negro Jelena Vucković

Plasmonic gratings and nano-particle arrays in a metal-insulator-metal structures are fabricated on an erbium doped silicon nitride layer. This material system enables simple fabrication of the structure, since the active nitride layer can be directly grown on metal. Enhancement of collected emission of up to 12 is observed on resonance, while broad off-resonant enhancement is also present. The...

Journal: :nanomedicine research journal 0
mitra amoli diva department of chemistry, payam noor university (pnu), tehran, iran kamyar pourghazi department of novel medical technologies, darupakhsh pharmaceutical co., tehran, iran

objective(s): researchers have intended to reformulate drugs so that they may be more safely used in human body. polymer science and nanotechnology have great roles in this field. the aim of this paper is to introduce an efficient drug delivery vehicle which can perform both targeted and controlled antibiotic release using magnetic nanoparticles grafted ph-responsive polymer.  methods: fe3o4 na...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

in this work, we report on the synthesis of superparamagnetic iron oxide nanoparticles at room temperature using microemulsion template phase consisting of cyclohexane, water, ctab as cationic surfactant and butanol as a cosurfactant. surface modification have been carried out by using poly(ethyleneglycol) (peg). the structure,morphology, and magnetic properties of the products were characteriz...

Journal: :journal of nanostructures 2014
s. khademinia a. alemi m. sertkol

lithium disilicate nano-powders were synthesized via a mild condition hydrothermal reaction at 180 ºc for 48 and 72 h with a non stoichiometric1:2 li:si molar ratio in naoh aqueous solution using li2co3 and sio2.h2o as raw materials. the synthesized materials were characterized by powder x-ray diffraction (pxrd) technique and fourier transform infrared (ftir) spectroscopy. the xrd data showed t...

Journal: :Cement & Concrete Composites 2021

The effects of concentration and particle size nano-Fe3O4 particles on the evolution structural build-up cementitious paste under magnetic field are experimentally investigated then verified by theoretical calculations. Three types with various sizes exploited. results show that liquid-like properties incorporated pastes increase immediately after initiation an external extent this increment in...

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