Quantitative Effect of Magnetic Field Strength on PEGylated Superparamagnetic Iron Oxide Nanoparticles

2017 ◽  
Vol 48 (6) ◽  
pp. 597-607
Author(s):  
Amin Farzadniya ◽  
Fariborz Faeghi ◽  
Saeed Shanehsazzadeh
Keyword(s):  
Magnetic Field ◽  
Iron Oxide ◽  
Field Strength ◽  
Magnetic Field Strength ◽  
Iron Oxide Nanoparticles ◽  
Superparamagnetic Iron Oxide ◽  
Superparamagnetic Iron Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Quantitative Effect

Magnetic targeting with superparamagnetic iron oxide nanoparticles for in vivo glioma

2017 ◽  
Vol 6 (5) ◽  
pp. 449-472 ◽  
Author(s):  
Marina Fontes de Paula Aguiar ◽  
Javier Bustamante Mamani ◽  
Taylla Klei Felix ◽  
Rafael Ferreira dos Reis ◽  
Helio Rodrigues da Silva ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Superparamagnetic Iron Oxide ◽  
Superparamagnetic Iron Oxide Nanoparticles ◽  
Process Efficiency ◽  
Cochrane Library ◽  
Oxide Nanoparticles ◽  
Magnetic Targeting

AbstractThe purpose of this study was to review the use of the magnetic targeting technique, characterized by magnetic driving compounds based on superparamagnetic iron oxide nanoparticles (SPIONs), as drug delivery for a specific brain locus in gliomas. We reviewed a process mediated by the application of an external static magnetic field for targeting SPIONs in gliomas. A search of PubMed, Cochrane Library, Scopus, and Web of Science databases identified 228 studies, 23 of which were selected based on inclusion criteria and predetermined exclusion criteria. The articles were analyzed by physicochemical characteristics of SPIONs used, cell types used for tumor induction, characteristics of experimental glioma models, magnetic targeting technical parameters, and analysis method of process efficiency. The study shows the highlights and importance of magnetic targeting to optimize the magnetic targeting process as a therapeutic strategy for gliomas. Regardless of the intensity of the patterned magnetic field, the time of application of the field, and nanoparticle used (commercial or synthesized), all studies showed a vast advantage in the use of magnetic targeting, either alone or in combination with other techniques, for optimized glioma therapy. Therefore, this review elucidates the preclinical and therapeutic applications of magnetic targeting in glioma, an innovative nanobiotechnological method.

scholarly journals Examining the effect of ions and proteins on the heat dissipation of iron oxide nanocrystals

RSC Advances ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. 1443-1450
Author(s):  
V. Kalidasan ◽  
X. L. Liu ◽  
Y. Li ◽  
P. J. Sugumaran ◽  
A. H. Liu ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Heat Dissipation ◽  
Superparamagnetic Iron Oxide ◽  
Superparamagnetic Iron Oxide Nanoparticles ◽  
Alternating Magnetic Field ◽  
Oxide Nanoparticles

In this paper, the effect and contribution of physiological components like ions and proteins under an applied alternating magnetic field (AMF) towards heat dissipation of superparamagnetic iron oxide nanoparticles (SPIONs) are discussed.

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).

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