scholarly journals Gold–iron oxide dimers for magnetic hyperthermia: the key role of chloride ions in the synthesis to boost the heating efficiency

2017 ◽  
Vol 5 (24) ◽  
pp. 4587-4594 ◽  
Author(s):  
P. Guardia ◽  
S. Nitti ◽  
M. E. Materia ◽  
G. Pugliese ◽  
N. Yaacoub ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Magnetic Hyperthermia ◽  
Chloride Ions ◽  
One Pot ◽  
Heating Efficiency ◽  
Synthesis Routes

To produce Au–FexOy dimers with outstanding heating performances under clinical magnetic hyperthermia conditions, here we report two synthesis routes, a two-pot and a one-pot method.

Core/shell iron/iron oxide nanoparticles: are they promising for magnetic hyperthermia?

RSC Advances ◽  
2016 ◽  
Vol 6 (45) ◽  
pp. 38697-38702 ◽  
Author(s):  
Z. Nemati ◽  
J. Alonso ◽  
H. Khurshid ◽  
M. H. Phan ◽  
H. Srikanth
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Magnetic Hyperthermia ◽  
Oxide Nanoparticles ◽  
Core Shell ◽  
Heating Efficiency ◽  
Surface Disorder ◽  
Iron Iron

Core/shell iron/iron oxide nanoparticles are promising for magnetic hyperthermia provided their size is big enough (>14 nm) in order to minimize surface disorder and hollowing effects that seriously deteriorate their heating efficiency.

Role of interface quality in iron oxide core/shell nanoparticles on heating efficiency and transverse relaxivity

2019 ◽  
Vol 9 (4) ◽  
pp. 328-336 ◽  
Author(s):  
Venkatesha Narayanaswamy ◽  
Ihab M. Obaidat ◽  
Sachin Latiyan ◽  
Shilpee Jain ◽  
Chiranjib Nayek ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Interface Quality ◽  
Heating Efficiency ◽  
Iron Oxide Core ◽  
Core Shell Nanoparticles

The Role of Diffusion-Controlled Growth in the Formation of Uniform Iron Oxide Nanoparticles with a Link to Magnetic Hyperthermia

2017 ◽  
Vol 17 (5) ◽  
pp. 2323-2332 ◽  
Author(s):  
Ilona S. Smolkova ◽  
Natalia E. Kazantseva ◽  
Vladimir Babayan ◽  
Jarmila Vilcakova ◽  
Nadezda Pizurova ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Magnetic Hyperthermia ◽  
Oxide Nanoparticles ◽  
Controlled Growth ◽  
Diffusion Controlled

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.

Duality of Iron Oxide Nanoparticles in Cancer Therapy: Amplification of Heating Efficiency by Magnetic Hyperthermia and Photothermal Bimodal Treatment

ACS Nano ◽  
2016 ◽  
Vol 10 (2) ◽  
pp. 2436-2446 ◽  
Author(s):  
Ana Espinosa ◽  
Riccardo Di Corato ◽  
Jelena Kolosnjaj-Tabi ◽  
Patrice Flaud ◽  
Teresa Pellegrino ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Cancer Therapy ◽  
Iron Oxide Nanoparticles ◽  
Magnetic Hyperthermia ◽  
Oxide Nanoparticles ◽  
Heating Efficiency

scholarly journals High performance multi-core iron oxide nanoparticles for magnetic hyperthermia: microwave synthesis, and the role of core-to-core interactions

Nanoscale ◽  
2015 ◽  
Vol 7 (5) ◽  
pp. 1768-1775 ◽  
Author(s):  
C. Blanco-Andujar ◽  
D. Ortega ◽  
P. Southern ◽  
Q. A. Pankhurst ◽  
N. T. K. Thanh
Keyword(s):  
Iron Oxide ◽  
Magnetic Nanoparticles ◽  
Microwave Synthesis ◽  
High Performance ◽  
Magnetic Hyperthermia ◽  
Oxide Nanoparticles ◽  
Controlled Synthesis ◽  
The Core ◽  
Optimum Heating

Controlled synthesis of multicore magnetic nanoparticles reveals that optimum heating is obtained when the cores are comparatively large and few, minimising the core–core interactions that inhibit hyperthermia.

scholarly journals Hyperthermia Efficiency of Magnetic Nanoparticles in Dense Aggregates of Cerium Oxide/Iron Oxide Nanoparticles

2018 ◽  
Vol 8 (8) ◽  
pp. 1241 ◽  
Author(s):  
Cindy Yadel ◽  
Aude Michel ◽  
Sandra Casale ◽  
Jerome Fresnais
Keyword(s):  
Iron Oxide ◽  
Magnetic Nanoparticles ◽  
Iron Oxide Nanoparticles ◽  
Absorption Rate ◽  
Specific Absorption Rate ◽  
Oxide Nanoparticles ◽  
Strong Impact ◽  
Heating Efficiency ◽  
Nanoparticles Dispersion

Iron oxide nanoparticles are intended to be used in bio-applications for drug delivery associated with hyperthermia. However, their interactions with complex media often induces aggregation, and thus a detrimental decrease of their heating efficiency. We have investigated the role of iron oxide nanoparticles dispersion into dense aggregates composed with magnetic/non-magnetic nanoparticles and showed that, when iron oxide nanoparticles were well-distributed into the aggregates, the specific absorption rate reached 79% of the value measured for the well-dispersed case. This study should have a strong impact on the applications of magnetic nanoparticles into nanostructured materials for therapy or catalysis applications.

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.

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