نتایج جستجو برای: magnetite nanoparticle loaded

تعداد نتایج: 76809  

Journal: :iranian journal of toxicology 0
احمد کاکایی ahmad kakaei ms student of chemical engineering, islamic azad university, south-tehran branch, tehran, iran. محمد کاظمینی mohammad kazemeini department of chemical engineering, sharif university of technology, islamic azad university, south-tehran branch, tehran, iran.

background: heavy metals, even at low concentrations, are harmful to human health and environment. cadmium as a heavy metal is highly toxic and can cause serious threat to living organisms. this research was designed to evaluate the adsorption potential of modified magnetic iron nanoparticles by 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol ligand for the removal of cadmium ions from water solu...

Journal: :Journal of the American Chemical Society 2012
Su Kyung Suh Kai Yuet Dae Kun Hwang Ki Wan Bong Patrick S Doyle T Alan Hatton

We present the synthesis of nonspherical magnetic microparticles with multiple functionalities, shapes, and chemistries. Particle synthesis was performed in two steps: polymeric microparticles functionalized homogenously with carboxyl groups were generated using stop-flow lithography, and then in situ coprecipitation was used to grow magnetic nanoparticles at these carboxyl sites. With successi...

Journal: :The journal of physical chemistry. B 2006
Yiwen Chu Jianhua Hu Wuli Yang Changchun Wang Jin Z Zhang

Magnetite nanoparticles of Fe(3)O(4) have been found to grow into large highly branched nanostructures including nanochains and highly branched nanotrees in the solid state through a postannealing process. By varying the preparation conditions such as annealing time and temperature, the nanostructures could be easily manipulated. Changing the starting concentration of the magnetic nanoparticle ...

D. Moslemi S. Masoumeh Ghoreishi, S. Mortazavi-Derazkola

In this work we synthesized Nano hydroxyapatite (HAp)  by Sol-gel method, Then we functionalized hydroxyapatite nanoparticle by use of  3-Aminopropyl trimethoxysilane (APTMS) , to improve the loading and control release of sulfasalazine drug bonded to APTMS. The drug release patterns from Sulfasalazine loaded HAp nanoparticles at pH value 8 For 6h, Sulfasalazine loaded functionalized HAp nanopa...

Journal: :Nano letters 2015
Dominik Schmid-Lorch Thomas Häberle Friedemann Reinhard Andrea Zappe Michael Slota Lapo Bogani Amit Finkler Jörg Wrachtrup

To study the magnetic dynamics of superparamagnetic nanoparticles, we use scanning probe relaxometry and dephasing of the nitrogen vacancy (NV) center in diamond, characterizing the spin noise of a single 10 nm magnetite particle. Additionally, we show the anisotropy of the NV sensitivity's dependence on the applied decoherence measurement method. By comparing the change in relaxation (T1) and ...

2014
Arseniy Borysov Natalia Krisanova Olexander Chunihin Ludmila Ostapchenko Nataliya Pozdnyakova Тatiana Borisova

AIM To analyze the neurotoxic potential of synthesized magnetite nanoparticles coated by dextran, hydroxyethyl starch, oxidized hydroxyethyl starch, and chitosan, and magnetic nanoparticles combined with ferritin as a native protein. METHODS The size of nanoparticles was analyzed using photon correlation spectroscopy, their effects on the conductance of planar lipid membrane by planar lipid b...

Journal: :Applied physics letters 2012
Warren C Ruder Chia-Pei D Hsu Brent D Edelman Russell Schwartz Philip R Leduc

We have studied the dynamic behavior of nanoparticles in ferrofluids consisting of single-domain, biogenic magnetite (Fe(3)O(4)) isolated from Magnetospirillum magnetotacticum (MS-1). Although dipolar chains form in magnetic colloids in zero applied field, when dried upon substrates, the solvent front disorders nanoparticle aggregation. Using avidin-biotin functionalization of the particles and...

Journal: :Nanoscale 2015
Matthew D Becker Yonggang Wang Jeffrey L Paulsen Yi-Qiao Song Linda M Abriola Kurt D Pennell

Nanotechnologies have been proposed for a variety of environmental applications, including subsurface characterization, enhanced oil recovery, and in situ contaminant remediation. For such applications, quantitative predictive models will be of great utility for system design and implementation. Electrolyte chemistry, which can vary substantially within subsurface pore waters, has been shown to...

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