Fe3O4@Au@SiO2 Core–Shell Nanoparticles: Synthesis,  Characterization, Investigations of Its Influence on Cell Lines Using  a NIR Laser and an Alternating Magnetic Field

2021 ◽  
Author(s):  
Rusul Mohammed Abdallah ◽  
Raad M. S. Al-Haddad
Keyword(s):  
Magnetic Field ◽  
Cell Lines ◽  
Alternating Magnetic Field ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Nanoparticles Synthesis ◽  
Core Shell Nanoparticles ◽  
Nir Laser

scholarly journals Influence of NIR Laser and Alternating Magnetic Field on Core-Shell Nanoparticles for Cell Lines Treatment

2021 ◽  
Author(s):  
rusul mohammed ◽  
raad Al-Haddad
Keyword(s):  
Magnetic Field ◽  
Cell Lines ◽  
Structural Characteristics ◽  
Alternating Magnetic Field ◽  
Target Cells ◽  
Average Crystalline Size ◽  
Materials Synthesis ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles ◽  
Nir Laser

Abstract ore-shell nanoparticles (CSNPs) have attracted attention in biomedical applications as they have highly useful materials with modified characteristics, such as high stability, dispersibility, higher permeability to certain target cells and reduction in consumption of precious materials. Synthesis of core-multishell nanoparticles with suitable sizes, structural characteristics and absorption using simple methods continues to be a challenge. In this study, Fe3O-4­Au @SiO2, CSNPs were synthesized in three stages to control their size and the potential for tuning their properties. FESEM images confirmed that CSNPs has a small particle size of about 22.5 nm; average crystalline size in XRD was 22.8 nm; stability was about -49.1 mV; and synthesis with magnetic and optical properties improved their biocompatibility. Treatment of CAL-51 and HBL-100 cell lines by Fe3O-4­Au @SiO2, CSNPs under NIR laser and alternating magnetic field (AMF) generated enough heat to increase cell death.

scholarly journals Carbon-coated Fe3O4 core–shell super-paramagnetic nanoparticle-based ferrofluid for heat transfer applications

2021 ◽  
Author(s):  
Mohd Imran ◽  
Nasser Zouli ◽  
Tansir Ahamad ◽  
Saad M. Alshehri ◽  
Mohammed Rehaan Chandan ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Heat Transfer ◽  
Thermal Conductivity ◽  
External Magnetic Field ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Carbon Coated ◽  
Core Shell Nanoparticles ◽  
Fe3o4 Core

Ferrofluids prepared by dispersing superparamagnetic Fe3O4@C core–shell nanoparticles in water exhibited exceptional enhancement in thermal conductivity without an external magnetic field.

Magnetic-field-induced self-assembly of FeCo/CoFe2O4 core/shell nanoparticles with tunable collective magnetic properties

Nanoscale ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 4519-4529
Author(s):  
J. Mohapatra ◽  
J. Elkins ◽  
M. Xing ◽  
D. Guragain ◽  
Sanjay R. Mishra ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Properties ◽  
Physical Properties ◽  
Self Assembly ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Novel Approach ◽  
Core Shell Nanoparticles

Self-assembly of nanoparticles into ordered patterns is a novel approach to build up new consolidated materials with desired collective physical properties.

scholarly journals Magnetoelastoelectric coupling in core–shell nanoparticles enabling directional and mode-selective magnetic control of THz beam propagation

Nanoscale ◽  
2017 ◽  
Vol 9 (35) ◽  
pp. 13052-13059 ◽  
Author(s):  
Moumita Dutta ◽  
Kamaraju Natarajan ◽  
Soutik Betal ◽  
Rohit P. Prasankumar ◽  
Amar S. Bhalla ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Phase Modulation ◽  
Beam Propagation ◽  
Core Shell ◽  
Magnetic Control ◽  
Magnetic Field Direction ◽  
Mode Switch ◽  
Shell Nanoparticles ◽  
Modulation Mode ◽  
Core Shell Nanoparticles

Magnetoelastoelectric coupling in engineered biphasic core–shell nanocomposites demonstrates a dynamically tunable magnetic-field direction defined THz amplitude/phase modulation mode-switch.

Silver, gold and the corresponding core shell nanoparticles: synthesis and characterization

2008 ◽  
Vol 10 (S1) ◽  
pp. 97-106 ◽  
Author(s):  
Fraser Douglas ◽  
Ramon Yañez ◽  
Josep Ros ◽  
Sergio Marín ◽  
Alfredo de la Escosura-Muñiz ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Nanoparticles Synthesis ◽  
Core Shell Nanoparticles

Sn@Pt and Rh@Pt core–shell nanoparticles synthesis for glycerol oxidation

2014 ◽  
Vol 45 (2) ◽  
pp. 139-150 ◽  
Author(s):  
Marilia M. S. Pupo ◽  
Franz E. López-Suárez ◽  
Agustín Bueno-López ◽  
Cristiano T. Meneses ◽  
Katlin I. B. Eguiluz ◽  
...  
Keyword(s):  
Core Shell ◽  
Glycerol Oxidation ◽  
Shell Nanoparticles ◽  
Nanoparticles Synthesis ◽  
Core Shell Nanoparticles

scholarly journals Core-Shell Nanostructure ofα-Fe2O3/Fe3O4: Synthesis and Photocatalysis for Methyl Orange

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Yang Tian ◽  
Di Wu ◽  
Xiao Jia ◽  
Binbin Yu ◽  
Sihui Zhan
Keyword(s):  
Magnetic Field ◽  
Magnetic Properties ◽  
Methyl Orange ◽  
Molten Salts ◽  
Surface Oxidation ◽  
The Self ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles

Fe3O4nanoparticle was synthesized in the solution involving water and ethanol. Then,α-Fe2O3shell was produced in situ on the surface of theFe3O4nanoparticle by surface oxidation in molten salts, formingα-Fe2O3/Fe3O4core-shell nanostructure. It was showed that the magnetic properties transformed from ferromagnetism to superparamagnetism after the primaryFe3O4nanoparticles were oxidized. Furthermore, the obtainedα-Fe2O3/Fe3O4core-shell nanoparticles were used to photocatalyse solution of methyl orange, and the results revealed thatα-Fe2O3/Fe3O4nanoparticles were more efficient than the self-preparedα-Fe2O3nanoparticles. At the same time, the photocatalyzer was recyclable by applying an appropriate magnetic field.

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