Novel flow injection synthesis of iron oxide nanoparticles with narrow size distribution

2006 ◽  
Vol 61 (14) ◽  
pp. 4625-4633 ◽  
Author(s):  
German Salazar-Alvarez ◽  
Mamoun Muhammed ◽  
Andrei A. Zagorodni
Keyword(s):  
Iron Oxide ◽  
Size Distribution ◽  
Iron Oxide Nanoparticles ◽  
Flow Injection ◽  
Oxide Nanoparticles ◽  
Narrow Size Distribution

scholarly journals Synthesis of iron oxide nanoparticles of narrow size distribution on polysaccharide templates

2008 ◽  
Vol 31 (1) ◽  
pp. 93-96 ◽  
Author(s):  
M. Nidhin ◽  
R. Indumathy ◽  
K. J. Sreeram ◽  
Balachandran Unni Nair
Keyword(s):  
Iron Oxide ◽  
Size Distribution ◽  
Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Narrow Size Distribution

scholarly journals Structure, Composition and Magnetic Properties of Ferrofluid Nanoparticles after Separation / Feromagnētisko Šķidrumu Nanodaļiņu Struktūras, Sastāva un Magnētisko Īpašību Izmaiņas Pēc Separācijas

2013 ◽  
Vol 50 (4) ◽  
pp. 56-61
Author(s):  
G. Kronkalns ◽  
M. Kodols ◽  
M.M. Maiorov
Keyword(s):  
Magnetic Properties ◽  
Iron Oxide ◽  
Size Distribution ◽  
Iron Oxide Nanoparticles ◽  
Ferrite Nanoparticles ◽  
Nanoparticle Size ◽  
Oxide Nanoparticles ◽  
Narrow Size Distribution ◽  
Chemical Coprecipitation ◽  
Chemical Coprecipitation Method

Abstract The structure, composition and magnetic properties of iron oxide nanoparticles are studied as dependent on the synthesis technology and method of separation in ferrofluids. The goal of the present study is to improve the magnetic properties of wet-synthesized nanoparticles and achieve a narrow nanoparticle size distribution. The results of measurements show that by varying the conditions of the chemical coprecipitation method, different compositions and structures of the nanoparticles could be obtained. The separation of ferrite nanoparticles of a polydisperse colloid by centrifugation as well as by HGMS provides the possibility to obtain a nanoparticle set with narrow size distribution

Size distribution of magnetic iron oxide nanoparticles using Warren–Averbach XRD analysis

2012 ◽  
Vol 73 (7) ◽  
pp. 867-872 ◽  
Author(s):  
S. Mahadevan ◽  
S.P. Behera ◽  
G. Gnanaprakash ◽  
T. Jayakumar ◽  
J. Philip ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Size Distribution ◽  
Iron Oxide Nanoparticles ◽  
Xrd Analysis ◽  
Oxide Nanoparticles ◽  
Magnetic Iron Oxide Nanoparticles ◽  
Magnetic Iron Oxide

Size Distribution and Magnetization Optimization of Single-Core Iron Oxide Nanoparticles by Exploiting Design of Experiment Methodology

2013 ◽  
Vol 49 (1) ◽  
pp. 201-207 ◽  
Author(s):  
Aidin Lak ◽  
Frank Ludwig ◽  
Jan M. Scholtyssek ◽  
Jan Dieckhoff ◽  
Kathrin Fiege ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Size Distribution ◽  
Iron Oxide Nanoparticles ◽  
Design Of Experiment ◽  
Oxide Nanoparticles

scholarly journals Selective magnetometry of superparamagnetic iron oxide nanoparticles in liquids

Nanoscale ◽  
2020 ◽  
Vol 12 (31) ◽  
pp. 16420-16426 ◽  
Author(s):  
Juliusz Kuciakowski ◽  
Angelika Kmita ◽  
Dorota Lachowicz ◽  
Magdalena Wytrwal-Sarna ◽  
Krzysztof Pitala ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Size Distribution ◽  
Iron Oxide Nanoparticles ◽  
Atomic Structure ◽  
Superparamagnetic Iron Oxide ◽  
Magnetic Probe ◽  
Superparamagnetic Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles

A new photon-in/photon-out magnetic probe empowers an in situ estimation of size distribution and atomic structure of iron oxide nanoparticles in suspension.

scholarly journals Improving the Size Homogeneity of Multicore Superparamagnetic Iron Oxide Nanoparticles

2020 ◽  
Vol 21 (10) ◽  
pp. 3476
Author(s):  
Barry J. Yeh ◽  
Tareq Anani ◽  
Allan E. David
Keyword(s):  
Magnetic Field ◽  
Iron Oxide ◽  
Size Distribution ◽  
Iron Oxide Nanoparticles ◽  
Scale Up ◽  
Superparamagnetic Iron Oxide ◽  
Superparamagnetic Iron Oxide Nanoparticles ◽  
P Value ◽  
Oxide Nanoparticles ◽  
Broad Size Distribution

Superparamagnetic iron oxide nanoparticles (SPIONs) have been widely explored for use in many biomedical applications. Methods for synthesis of magnetic nanoparticle (MNP), however, typically yield multicore structures with broad size distribution, resulting in suboptimal and variable performance in vivo. In this study, a new method for sorting SPIONs by size, labeled diffusive magnetic fractionation (DMF), is introduced as an improvement over conventional magnetic field flow fractionation (MFFF). Unlike MFFF, which uses a constant magnetic field to capture particles, DMF utilizes a pulsed magnetic field approach that exploits size-dependent differences in the diffusivity and magnetic attractive force of SPIONs to yield more homogenous particle size distributions. To compare both methods, multicore SPIONs with a broad size distribution (polydispersity index (PdI) = 0.24 ± 0.05) were fractionated into nine different-sized SPION subpopulations, and the PdI values were compared. DMF provided significantly improved size separation compared to MFFF, with eight out of the nine fractionations having significantly lower PdI values (p value < 0.01). Additionally, the DMF method showed a high particle recovery (>95%), excellent reproducibility, and the potential for scale-up. Mathematical models were developed to enable optimization, and experimental results confirmed model predictions (R2 = 0.98).

scholarly journals Droplet-based synthesis of homogeneous magnetic iron oxide nanoparticles

2018 ◽  
Vol 9 ◽  
pp. 2413-2420 ◽  
Author(s):  
Christian D Ahrberg ◽  
Ji Wook Choi ◽  
Bong Geun Chung
Keyword(s):  
Particle Size ◽  
Iron Oxide ◽  
Magnetic Nanoparticles ◽  
Size Distribution ◽  
Iron Oxide Nanoparticles ◽  
Residence Time ◽  
Medical Applications ◽  
Oxide Nanoparticles ◽  
Magnetic Iron Oxide Nanoparticles ◽  
Magnetic Iron Oxide

Nanoparticles have gained large interest in a number of different fields due to their unique properties. In medical applications, for example, magnetic nanoparticles can be used for targeting, imaging, magnetically induced thermotherapy, or for any combination of the three. However, it is still a challenge to obtain narrowly dispersed, reproducible particles through a typical lab-scale synthesis when researching these materials. Here, we present a droplet capillary reactor that can be used for the synthesis of magnetic iron oxide nanoparticles. Compared to conventional batch synthesis, the particles synthesized in our droplet reactor have a narrower size distribution and a higher reproducibility. Furthermore, we demonstrate how the particle size can be changed from 5.2 ± 0.9 nm to 11.8 ± 1.7 nm by changing the reaction temperature and droplet residence time in the droplet capillary reactor.

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