Synthesis and Phase Transfer of Monodisperse Iron Oxide (Fe3O4) Nanocubes

2014 ◽  
Vol 67 (4) ◽  
pp. 663 ◽  
Author(s):  
Melissa R. Dewi ◽  
William M. Skinner ◽  
Thomas Nann
Keyword(s):  
Magnetic Properties ◽  
Iron Oxide ◽  
Phase Transfer ◽  
Synthesis Method ◽  
Superparamagnetic Iron Oxide ◽  
Spherical Particles ◽  
Hydrodynamic Diameter ◽  
Oxide Nanoparticles ◽  
Magnetic Iron Oxide Nanoparticles ◽  
Water Dispersible

Cube-shaped magnetic iron oxide nanoparticles were synthesised and studied with the aim to achieve superior magnetic properties. This study describes a straightforward and simple synthesis method for preparing monodisperse 11–14-nm superparamagnetic iron oxide nanocubes via an ‘effective monomer’ growth mechanism. The as-synthesised nanoparticles are insoluble in water. However, substitution of the non-polar ligands of the particles using a new method that involved an ionic compound generated colloidally stable and water dispersible cube-shaped particles with a very small hydrodynamic diameter. The cubes displayed superior magnetic properties over spherical particles.

scholarly journals Study of the influence of autoclave sterilization on the properties of citrate functionalized iron oxide nanoparticles

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Thomas Girardet ◽  
Amel Cherraj ◽  
Astrid Pinzano ◽  
Christel Henrionnet ◽  
Franck Cleymand ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Magnetic Measurements ◽  
Superparamagnetic Iron Oxide ◽  
Oxide Nanoparticles ◽  
X Ray Diffraction ◽  
Water Dispersible ◽  
Before And After ◽  
One Step

Abstract Superparamagnetic Iron Oxide Nanoparticles (SPIONs) are widely used in various areas of the biomedical field: for diagnosis (Magnetic Resonance Imaging), for therapeutic applications (hyperthermia, nanovectorization). These applications require a good stability in water and no aggregation of SPIONs, with well-controlled physicochemical and magnetic properties. In this work, SPIONs functionalized by citrate ligands are synthesized in a one-step process with the aim of producing stable water-dispersible nanoparticles with a well-crystallized spinel structure. Microwave technology is implemented to achieve this objective given the ease, speed and reproducibility of the method. For their future use in biomedical applications, the sterilization of these SPIONs are essential by an autoclave treatment. The influence of this treatment on the physicochemical and magnetic properties of the SPIONs is determined by a systematic characterization before and after sterilization by Transmission Electronic Microscopy, Dynamic Light Scattering, X-ray Diffraction, Fourier Transformed Infra-Red, ThermoGravimetric Analysis and magnetic measurements.

A simple and versatile solvothermal configuration to synthesize superparamagnetic iron oxide nanoparticles using a coaxial microwave antenna

RSC Advances ◽  
2016 ◽  
Vol 6 (106) ◽  
pp. 104366-104374 ◽  
Author(s):  
Alessio Spepi ◽  
Celia Duce ◽  
Carlo Ferrari ◽  
José González-Rivera ◽  
Zvonko Jagličić ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Superparamagnetic Iron Oxide ◽  
Superparamagnetic Iron Oxide Nanoparticles ◽  
Microwave Antenna ◽  
Oxide Nanoparticles ◽  
Magnetic Iron Oxide Nanoparticles ◽  
Magnetic Iron Oxide

Magnetic iron oxide nanoparticles (IONs) with controllable physicochemical and magnetic properties were synthesized by a fast and simple solvothermal microwave (MW) assisted approach.

scholarly journals Reversible magnetism switching of iron oxide nanoparticle dispersions by controlled agglomeration

2021 ◽  
Author(s):  
Stephan Müssig ◽  
Björn Kuttich ◽  
Florian Fidler ◽  
Daniel Haddad ◽  
Susanne Wintzheimer ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Iron Oxide ◽  
Light Scattering ◽  
Superparamagnetic Iron Oxide ◽  
Iron Oxide Nanoparticle ◽  
Oxide Nanoparticles ◽  
X Ray ◽  
X Ray Scattering ◽  
Nanoparticle Dispersions ◽  
Oxide Nanoparticle

The controlled agglomeration of superparamagnetic iron oxide nanoparticles (SPIONs) was used to rapidly switch their magnetic properties. Small-angle X-ray scattering (SAXS) and dynamic light scattering showed that tailored iron oxide...

Gold nanoclusters decorated with magnetic iron oxide nanoparticles for potential multimodal optical/magnetic resonance imaging

2015 ◽  
Vol 3 (23) ◽  
pp. 5910-5917 ◽  
Author(s):  
Chan Wang ◽  
Yagang Yao ◽  
Qijun Song
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Properties ◽  
Iron Oxide ◽  
Magnetic Resonance ◽  
Cancer Diagnosis ◽  
Gold Nanoclusters ◽  
Oxide Nanoparticles ◽  
Resonance Imaging ◽  
Magnetic Iron Oxide Nanoparticles ◽  
Optical And Magnetic Properties

The dual optical and magnetic properties of the synthesized Fe3O4@AuNCs were applicable to cancer diagnosis by fluorescence and MR-based imaging.

ß-Amido Acid Functionalised Superparamagnetic Iron Oxide Nanoparticles as a Novel Carrier for Efficient Delivery of Doxorubicine

2017 ◽  
Vol 41 (3) ◽  
pp. 129-135
Author(s):  
Fatemeh Ebrahimi ◽  
Maryam Karimi ◽  
Hasan Sereshti ◽  
Mohsen Yousefifar
Keyword(s):  
Electron Microscopy ◽  
Drug Delivery ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Superparamagnetic Iron Oxide ◽  
Superparamagnetic Iron Oxide Nanoparticles ◽  
Precipitation Method ◽  
Hydrodynamic Diameter ◽  
Oxide Nanoparticles ◽  
Amido Acid

Superparamagnetic iron oxide nanoparticles are increasingly used in medical applications due to their unique physical properties. They are useful carriers for delivering antitumour drugs in targeted cancer treatment. In this study, amido acid-functionalised magnetic nanoparticles (AAFMNs) are used as drug-delivery vehicles for doxorubicine as an efficient tool for the treatment of cancer. Magnetic iron oxide nanoparticles were synthesised using a co-precipitation method. The prepared iron oxide nanoparticles were then functionalised with amido acid functional groups. Finally, the synthesised AAFMNs were used for the delivery of doxorubicine. AAFMNs were characterised by Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, thermogravimetric analysis and zeta potential. An in vitro-determined hydrodynamic diameter of ∼80 nm suggested their applicability for this purpose. The findings show that AAFMNs are a promising tool for potential magnetic drug delivery.

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