scholarly journals Facile green synthesis of nanomagnets for modulating magnetohyperthermia: tailoring size, shape and phase

RSC Advances ◽  
2017 ◽  
Vol 7 (75) ◽  
pp. 47669-47680 ◽  
Author(s):  
M. P. Silva ◽  
A. L. Drummond ◽  
V. R. R. Aquino ◽  
L. P. Silva ◽  
R. B. Azevedo ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Magnetic Nanoparticles ◽  
Green Synthesis ◽  
Magnetic Hyperthermia ◽  
Heating Efficiency ◽  
Iron Oxide Magnetic Nanoparticles

Isometric and anisometric iron oxide magnetic nanoparticles, synthesized via an eco-friendly route, present modulated heating efficiency for magnetic hyperthermia applications.

Wet-Chemical Green Synthesis of L-Lysine Amino Acid Stabilized Biocompatible Iron-Oxide Magnetic Nanoparticles

2012 ◽  
Vol 12 (8) ◽  
pp. 6645-6651 ◽  
Author(s):  
Rahul Krishna ◽  
Elby Titus ◽  
Rohit Krishna ◽  
Neelkanth Bardhan ◽  
Dhirendra Bahadur ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Amino Acid ◽  
Magnetic Nanoparticles ◽  
Green Synthesis ◽  
Iron Oxide Magnetic Nanoparticles ◽  
Wet Chemical

scholarly journals Iron Oxide Nanorings and Nanotubes for Magnetic Hyperthermia: The Problem of Intraparticle Interactions

Nanomaterials ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1380
Author(s):  
Raja Das ◽  
Javier Alonso Masa ◽  
Vijaysankar Kalappattil ◽  
Zohreh Nemati ◽  
Irati Rodrigo ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Magnetic Nanoparticles ◽  
Absorption Rate ◽  
Specific Absorption Rate ◽  
Magnetic Nanostructures ◽  
Hysteresis Loops ◽  
Magnetic Hyperthermia ◽  
Magnetic Interactions ◽  
Effective Anisotropy ◽  
Heating Efficiency

Magnetic interactions can play an important role in the heating efficiency of magnetic nanoparticles. Although most of the time interparticle magnetic interactions are a dominant source, in specific cases such as multigranular nanostructures intraparticle interactions are also relevant and their effect is significant. In this work, we have prepared two different multigranular magnetic nanostructures of iron oxide, nanorings (NRs) and nanotubes (NTs), with a similar thickness but different lengths (55 nm for NRs and 470 nm for NTs). In this way, we find that the NTs present stronger intraparticle interactions than the NRs. Magnetometry and transverse susceptibility measurements show that the NTs possess a higher effective anisotropy and saturation magnetization. Despite this, the AC hysteresis loops obtained for the NRs (0–400 Oe, 300 kHz) are more squared, therefore giving rise to a higher heating efficiency (maximum specific absorption rate, SARmax = 110 W/g for the NRs and 80 W/g for the NTs at 400 Oe and 300 kHz). These results indicate that the weaker intraparticle interactions in the case of the NRs are in favor of magnetic hyperthermia in comparison with the NTs.

Preparation and physical characterization of cobalt iron oxide magnetic nanoparticles loaded polyvinyl alcohol

2021 ◽  
pp. 089270572098557
Author(s):  
M Abu-Abdeen ◽  
O Saber ◽  
E Mousa
Keyword(s):  
Iron Oxide ◽  
Magnetic Nanoparticles ◽  
Polyvinyl Alcohol ◽  
Saturation Magnetization ◽  
Polymer Films ◽  
Magnetic Hysteresis ◽  
Thermal Method ◽  
Cobalt Iron Oxide ◽  
Cobalt Iron ◽  
Iron Oxide Magnetic Nanoparticles

A solvent thermal method which depends on a thermal process under critical temperature and pressure was used to prepare cobalt iron oxide magnetic nanoparticles with a molar ratio 2. The prepared particles were in the form of nanoparticles with diameter ranging from 5 to 10 nm and with amorphous structure. Magnetic hysteresis behavior with saturation magnetization 36.31 emu/g and coercivity 4 Oe were observed for the nanoparticles. Polyvinyl alcohol was loaded with different concentrations of cobalt iron oxide nanoparticles using casting technique. Hysteresis loops for the polymer films were observed and both the saturation magnetization and coercivity were increased from 0.36 to 16.03 emu/g and 115 to 293 Oe for samples containing 5 and 20 wt% of nanoparticles, respectively. The elastic modulus of films was increased from 2.7 to 4.9 GPa for unloaded and loaded samples with 20 wt%, respectively. The storage modulus of the polymer films was found to obey the percolation behavior.

Fe3O4 Magnetic Nanoparticles: Characterization and Performance Exemplified by the Degradation of Methylene Blue in the Presence of Persulfate

2016 ◽  
Vol 19 (1) ◽  
Author(s):  
Chang-Mao Hung ◽  
Chiu-Wen Chen ◽  
Yu-Zhe Jhuang ◽  
Cheng-Di Dong
Keyword(s):  
Methylene Blue ◽  
Iron Oxide ◽  
Magnetic Nanoparticles ◽  
Fe3o4 Magnetic Nanoparticles ◽  
Iron Oxide Magnetic Nanoparticles ◽  
Nanoparticles Characterization ◽  
And Performance

AbstractIn this study, the oxidation of methylene blue (MB) over iron oxide magnetic nanoparticles (Fe

Application of Immobilized Fungi Phanerochaete chrysosporium in Removal of Heavy-Metals from Wastewater

2013 ◽  
Vol 779-780 ◽  
pp. 1674-1677 ◽  
Author(s):  
Dan Lian Huang ◽  
Guang Ming Zeng ◽  
Piao Xu ◽  
Cui Lai ◽  
Mei Hua Zhao ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Iron Oxide ◽  
Magnetic Nanoparticles ◽  
Phanerochaete Chrysosporium ◽  
High Efficiency ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Removal Of Heavy Metals ◽  
Iron Oxide Magnetic Nanoparticles ◽  
Ca Alginate

Immobilized microbe technologies are expected to be effectively used in wastewater treatment. Removal of heavy-metals from wastewater by immobilized Phanerochaete chrysosporium (Pc) with Ca-alginate and iron oxide magnetic nanoparticles (MNPs) was studied. The results showed that a biosorbent as Pc immobilized by Ca-alginate and iron oxide magnetic nanoparticles was successfully developed. And the iron oxide magnetic nanoparticles played an important role in the increase of biosorption capacity of Pc. Energy dispersive spectrometer (EDS) analysis confirmed that metal ions adsorbed to the surface of the biosorbents were partly transmitted to the interior of biosorbents, mainly embedded with iron oxide nanoparticles and Ca-alginate. Moreover, it was found that MNPs-Ca-alginate immobilized Pc showed a good affinity to various heavy metals, such as Pb(II), Zn(II), Cd(II) or Mg(II) and so on. The results proved the high efficiency of the biosorbents for heavy-metal removal and its potential application in the treatment of metal-containing wastewater.

scholarly journals PSMA-targeting iron oxide magnetic nanoparticles enhance MRI of preclinical prostate cancer

Nanomedicine ◽  
2015 ◽  
Vol 10 (3) ◽  
pp. 375-386 ◽  
Author(s):  
Brian Wan-Chi Tse ◽  
Gary J Cowin ◽  
Carolina Soekmadji ◽  
Lidija Jovanovic ◽  
Raja S Vasireddy ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Iron Oxide ◽  
Magnetic Nanoparticles ◽  
Iron Oxide Magnetic Nanoparticles

Antibiofilm effect of chlorhexidine-carrier nanosystem based on iron oxide magnetic nanoparticles and chitosan

2019 ◽  
Vol 174 ◽  
pp. 224-231 ◽  
Author(s):  
Ana Paula Miranda Vieira ◽  
Laís Salomão Arias ◽  
Francisco Nunes de Souza Neto ◽  
Andressa Mayumi Kubo ◽  
Bruno Henrique Ramos Lima ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Magnetic Nanoparticles ◽  
Iron Oxide Magnetic Nanoparticles
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