Magnetic field enhanced photothermal effect of Fe3O4 nanoparticles

2018 ◽  
Vol 123 (11) ◽  
pp. 115115 ◽  
Author(s):  
Pengfei Pan ◽  
Yawen Lin ◽  
Zhixing Gan ◽  
Xiaobin Luo ◽  
Weiping Zhou ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Fe3o4 Nanoparticles ◽  
Photothermal Effect

scholarly journals Photothermal Effect of Superparamagnetic Fe3O4 Nanoparticles Irradiated by Near-Infrared Laser

2020 ◽  
Vol 2020 ◽  
pp. 1-8
Author(s):  
Shawei Fu ◽  
Yuchun Man ◽  
Fuquan Jia
Keyword(s):  
Cancer Treatment ◽  
Power Density ◽  
Infrared Absorption ◽  
Fe3o4 Nanoparticles ◽  
Near Infrared ◽  
Infrared Laser ◽  
Photothermal Effect ◽  
Transduction Efficiency ◽  
Large Power ◽  
Fe3o4 Nps

Fe3O4 nanoparticles (NPs) have been widely used in biomedicine due to their unique magnetism, biocompatibility, and biodegradability. Magnetic hyperthermia of Fe3O4 NPs for cancer treatment has attracted more attention. However, it could interfere with magnetic field-sensitive devices of patients, such as pacemakers. Therefore, it is necessary to find a new method for clinical therapy. In this study, the superparamagnetic Fe3O4 NPs were fabricated. Visible-near-infrared absorption spectra indicated that the Fe3O4 NPs have near-infrared absorption. The influences of Fe3O4 NP concentrations, power density, and wavelength of near-infrared laser irradiation on the photothermal performance of Fe3O4 NPs were investigated. The results revealed that high concentrations, large power density, and short irradiation wavelength could improve the photothermal performance of Fe3O4 NPs. The temperature variation and the absorption intensity simultaneously determined the photothermal transduction efficiency of Fe3O4 NPs. The application of the photothermal performance of Fe3O4 NPs would provide a new opportunity for clinic cancer treatment.

Rapid hydrate-based methane storage promoted by bilayer surfactant-coated Fe3O4 nanoparticles under a magnetic field

Fuel ◽  
2021 ◽  
Vol 303 ◽  
pp. 121248
Author(s):  
Yongji Wu ◽  
Tianqi Tang ◽  
Lei Shi ◽  
Yurong He
Keyword(s):  
Magnetic Field ◽  
Fe3o4 Nanoparticles ◽  
Methane Storage

scholarly journals Recyclable Fe3O4 Nanoparticles Catalysts for Aza-Michael Addition of Acryl Amides by Magnetic Field

Catalysts ◽  
2017 ◽  
Vol 7 (7) ◽  
pp. 219 ◽  
Author(s):  
Zhen-Xing Li ◽  
Dan Luo ◽  
Ming-Ming Li ◽  
Xiao-Fei Xing ◽  
Zheng-Zheng Ma ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Michael Addition ◽  
Fe3o4 Nanoparticles

Numerical Study on the Mechanism of Heat Transfer Enhancement in Fe3O4 Nanoferrofluids With Magnetic Field

2019 ◽  
Author(s):  
Chenfei Wang ◽  
Dongdong Gao ◽  
Minli Bai ◽  
Peng Wang ◽  
Yubai Li
Keyword(s):  
Magnetic Field ◽  
Heat Transfer ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Fe3o4 Nanoparticles ◽  
Volume Fraction ◽  
Numerical Study ◽  
Transfer Coefficients ◽  
Two Phase ◽  
Enhancement Of Heat Transfer

Abstract Nanofluids is reported to significantly enhance heat transfer but with little cost of pressure loss. To further the enhancement of heat transfer using Fe3O4 nanofluids, a magnetic field is employed to control the trajectory of Fe3O4 nanoparticles. A numerical study is conducted with commercial soft ANSYS FLUENT and the simulations are done with a two-phase flow approach named Euler-Lagrange. By comparing heat transfer of laminar flow in a horizontal tube with magnetic field or not, various volume fraction (0.5%/2%) and Reynolds numbers (Re = 200–1000) are considered. Results show that magnetic field contributes an average 4% promotion in convective heat transfer coefficients compared with the condition of no magnet. The mechanism of the enhancement of heat transfer with magnetic field is explored based on the analysis of velocity field. Fe3O4 Nanoparticles move up and down under the magnetic force, and convective heat transfer is enhanced because of the disturbance of the Fe3O4 nanoparticles. Slip flow between the base fluid and nanoparticles also contributes to the enhancement of heat transfer.

Highly efficient thermogenesis from Fe3O4 nanoparticles for thermoplastic material repair both in air and underwater

2017 ◽  
Vol 5 (3) ◽  
pp. 1221-1232 ◽  
Author(s):  
Xiangyu Yin ◽  
Yue Zhang ◽  
Peng Lin ◽  
Yupeng Liu ◽  
Zuankai Wang ◽  
...  
Keyword(s):  
Fe3o4 Nanoparticles ◽  
Photothermal Effect ◽  
Thermoplastic Material ◽  
Highly Efficient ◽  
Fe3o4 Nps ◽  
The Matrix

A robust photothermal healing method relies on the NIR photothermal effect of Fe3O4 NPs in the matrix. It allows thermoplastic materials and coatings to be repaired in air, and the coatings to be repaired more effectively underwater.

Photoluminescence and photothermal effect of Fe3O4 nanoparticles for medical imaging and therapy

2014 ◽  
Vol 105 (9) ◽  
pp. 091903 ◽  
Author(s):  
M. E. Sadat ◽  
Masoud Kaveh Baghbador ◽  
Andrew W. Dunn ◽  
H. P. Wagner ◽  
Rodney C. Ewing ◽  
...  
Keyword(s):  
Medical Imaging ◽  
Fe3o4 Nanoparticles ◽  
Photothermal Effect
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