نتایج جستجو برای: iron oxide magnetic nanoparticles

تعداد نتایج: 713189  

Journal: :journal of physical & theoretical chemistry 2011
m. keshavarz z. ghasemi

in this research, the magnetite nanoparticles (fe304) were prepared by coprecipitation of fe3+ andfe solution in alkaline medium. two kinds of surfactants, cetyl tri methyl ammonium bromide(ctab) and cetyl pyridinum chloride (cpc) were used in the synthesis. fe304 nanoparticles werecoated with human serum albumin (hsa) and bovine serum albumin (bsa). characteristics ofcoated magnetic nanopartic...

2015
Steffen Kurzhals Ronald Zirbs Erik Reimhult

Superparamagnetic nanoparticles have been proposed for many applications in biotechnology and medicine. In this paper, it is demonstrated how the excellent colloidal stability and magnetic properties of monodisperse and individually densely grafted iron oxide nanoparticles can be used to manipulate reversibly the solubility of nanoparticles with a poly(N-isopropylacrylamide)nitrodopamine shell....

2004
GERMAN SALAZAR-ALVAREZ

This thesis deals with the synthesis, characterisation, and some applications of ferrimagnetic iron oxide nanoparticles. The iron oxide systems presented in this work are Fe3O4, γ-Fe2O3, NixFe3−xO4, CoxFe3−xO4. Iron oxide nanoparticles were prepared using chemical synthesis methods. Nanoparticles with a narrow size distribution were synthesised using zone confinement methods such as nanoemulsio...

Hassan Ghasemnejad-Bosra Mehdi Forouzani, Navabeh Nami, Omid Khalilpour Tylami

One-pot reaction of aldehydes or ketons with aniline derivatives was performed using NaBH4 and Fe3O4 magnetic nanoparticles (MNPs). The optimum amount of Fe3O4 MNPs was 5 mol% under solvent free condition. The corresponding products were obtained in good to excellent yields. The magnetically recoverable iron oxide nanoparticles are found to be efficient for synthesis of amine derivatives. These...

Journal: :Biomagnetic Research and Technology 2004
Jhunu Chatterjee Yousef Haik Ching Jen Chen

BACKGROUND: Biotechnology applications of magnetic gels include biosensors, targeted drug delivery, artificial muscles and magnetic buckles. These gels are produced by incorporating magnetic materials in the polymer composites. METHODS: A biocompatible magnetic gel film has been synthesized using polyvinyl alcohol. The magnetic gel was dried to generate a biocompatible magnetic film. Nanosized ...

2011
Jasmin Ana M Luiza Torres Henrique MP Nunes Juliana A Passipieri Linda A Jelicks Emerson L Gasparetto David C Spray Antonio C Campos de Carvalho Rosalia Mendez-Otero

The methods of the published manuscript [1] state that an incorrect concentration of Feridex was used (25 ug/ml). Instead, the methods should state that a concentration of 50 ug/ml Feridex was used. Optimized labeling of bone marrow mesenchymal cells with superparamagnetic iron oxide nanoparticles and in vivo visualization by magnetic resonance imaging. Cite this article as: Jasmin et al.: Corr...

Kazem Parivar Marjan Sadeghian Nasim Hayati Roodbari Parvin khodarahmi,

Background and Aim: Iron oxide nanoparticles are used in fields related to nanotechnology including ecology, magnetic storage, imaging and medicinal purposes. Iron nanoparticles produce reactive oxygen species (Ros). These materials are able to cross the placenta. The aim of this study was to investigate toxic effect of iron oxide nanoparticles on fetal lung in mice. <br ...

Journal: :Journal of the Royal Society, Interface 2010
Eyk Schellenberger

Superparamagnetic iron oxide nanoparticles have been established as sensitive probes for magnetic resonance imaging (MRI). While the majority of specific nanosensors are based on sterically stabilized iron oxide particles, the focus of this review is on the use of very small iron oxide particles (VSOPs) that are electrostatically stabilized by an anionic citrate acid shell. We used VSOPs to dev...

Journal: :Chemical communications 2008
Kyung Sig Lee In Su Lee

The decoration of iron oxide nanoparticles with Ni2+ ions provided the superparamagnetic nanoparticles with a binding site for His-tagged proteins, allowing their selective binding and convenient separation from a multi-component solution with an appropriately applied magnetic field.

2016
Yongyi Fan Rui Guo Xiangyang Shi Steven Allen Zhengyi Cao James R. Baker Su He Wang

A nanoemulsion (NE) is a surfactant-based, oil-in-water, nanoscale, high-energy emulsion with a mean droplet diameter of 400-600 nm. When mixed with antigen and applied nasally, a NE acts as a mucosal adjuvant and induces mucosal immune responses. One possible mechanism for the adjuvant effect of this material is that it augments antigen uptake and distribution to lymphoid tissues, where the im...

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