Article
Materials Science, Multidisciplinary
Papori Seal, Aszad Alam, Rushikesh Fopase, Lalit M. Pandey, J. P. Borah
Summary: This study aims to understand the heat generation mechanism of Multiwall Carbon Nanotube (MWCNT) and MnFe2O4 nanocomposite in different viscous media under an alternating magnetic field. The results confirm the formation of MnFe2O4 phase and its attachment onto MWCNT. The specific absorption rate (SAR) is found to depend on the viscosity of the medium and the dispersion of the nanocomposite, and dipolar interactions play a role in the relaxation mechanism. In addition, in vitro cytocompatibility tests have been performed.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Engineering, Multidisciplinary
Yundong Tang, Jian Zou, Rodolfo C. C. Flesch, Tao Jin
Summary: This study develops a poroelastic model to evaluate the effect of syringe needle size and infusion rate on backflow. The results demonstrate that tissue deformation and infusion pressure are the fundamental reasons for obtaining an irregular solution distribution.
APPLIED MATHEMATICAL MODELLING
(2023)
Article
Thermodynamics
Yun-Dong Tang, Jian Zou, Rodolfo C. C. Flesch, Tao Jin
Summary: Magnetic hyperthermia is an alternative cancer treatment method that involves controlling treatment temperature to damage malignant cells. This study proposes three injection strategies with low rate to improve the distribution of magnetic nanoparticles and enhance the treatment temperature distribution and thermal damage inside malignant tissue. The simulation results demonstrate the effectiveness of these injection strategies in improving physical field distribution for nanofluid concentration, treatment temperature, and thermal damage inside malignant tissue.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Physics, Condensed Matter
Molongnenla Jamir, C. Borgohain, J. P. Borah
Summary: This study investigates the synthesis and properties of CoFe2O4 nanoparticles coated with biopolymers (chitosan and dextran) using a solvothermal method. The results show that the morphology and surface modification of the nanoparticles affect their magnetic behavior and heat generation ability.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Multidisciplinary Sciences
Fuzhang Wang, Shafiq Ahmad, Qasem Al Mdallal, Maha Alammari, Muhammad Naveed Khan, Aysha Rehman
Summary: This article mainly focuses on the influence of chemical reaction slip condition on the unsteady three-dimensional Maxwell bio-convective nanomaterial liquid flow towards an exponentially expanding surface. The study examines the changes in temperature, velocity, microorganism, and concentration field through numerical calculations and graphical evaluation. The results show that the involvement of unsteadiness parameter restricts the transition from laminar to turbulent flow, while the velocity slip parameter has a decreasing effect on velocity components.
SCIENTIFIC REPORTS
(2022)
Review
Polymer Science
V. Vijayakanth, Krishnamoorthi Chintagumpala
Summary: Recently, localized magnetic hyperthermia therapy has been extensively studied as an independent or adjunct therapy for treating cancer tumors. The generation of controlled heat by superparamagnetic nanoparticles (SPNPs) plays a key role in this therapy. Colloidal SPNPs produce heat under an alternating magnetic field through an electron magnetic spin relaxation mechanism. The type of dispersant used affects the hydrodynamic volume of SPNPs and their relaxation time, ultimately influencing the efficiency of hyperthermia treatment. This review provides valuable insights for designing and synthesizing new hyperthermia materials in the future.
Article
Multidisciplinary Sciences
Anwar Saeed, Poom Kumam, Saleem Nasir, Taza Gul, Wiyada Kumam
Summary: The study investigates the time-dependent nonlinear convective flow of thin film nanoliquid over an inclined stretchable sheet with magnetic effect. The research explains the impact of factors like thermophoresis and Brownian movement on mass and heat transport processes. The results, obtained using the Homotopy Analysis Method, analyze the effects of magnetic, Brownian, and thermophoresis parameters on temperature, velocity, and concentration profiles, leading to significant findings.
SCIENTIFIC REPORTS
(2021)
Review
Thermodynamics
Zoljargal Narankhishig, Jeonggyun Ham, Hoseong Lee, Honghyun Cho
Summary: The review covers experimental and numerical investigations on the convective heat transfer of various nanofluids, especially hybrid nanofluids. Performance optimization of nanofluid heat and mass transfer is influenced by factors such as nanofluid characteristics, synthesis method, magnetic force, nanoparticle concentration and size, and Reynolds number. Studies have shown that the magnetic field in magnetic nanoparticles can significantly enhance the convective heat transfer performance of nanofluids.
APPLIED THERMAL ENGINEERING
(2021)
Article
Mechanics
Rasa Soleimani, Mohammad Zargartalebi, Jalel Azaiez, Ian D. Gates
Summary: The study found that the two-component model provides more accurate predictions of heat transfer performance due to the direct influence of nanoparticles' distribution on the hydrodynamics. The non-monotonic variations in average Nusselt number and friction factor with respect to geometrical parameters provide insight for an optimal design guideline.
Article
Materials Science, Ceramics
I Anila, B. B. Lahiri, Jacob Mathew, John Philip
Summary: The study demonstrates the viscosity-independent magnetic hyperthermia properties of chitosan-coated ultrafine CoFe2O4 MNPs, showing higher field-induced heating efficiency.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Yaghoub Mohammadfam, Saeed Zeinali Heris
Summary: This study investigates the impact of single, hybrid, and doped magnetic nanoparticles on the convective heat transfer capabilities of a water/ethylene glycol-based nanofluid under the influence of a magnetic field. The results show that the application of Fe3O4 and Fe3O4@MWCNT nanoparticles can increase the heat transfer capabilities of the nanofluid, while the application of MWCNT-Fe3O4 nanoparticles decreases the heat transfer capabilities. The performance index evaluation indicates that the use of nanofluids is effective, as all samples have a performance index greater than one.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Inorganic & Nuclear
Arthur Zakinyan, Stanislav Kunikin, Andrey Chernyshov, Vitali Aitov
Summary: This study focuses on the development and suppression of thermal convection in a flat vertical quasi-two-dimensional layer of magnetic nanofluid, demonstrating the effectiveness of applying external magnetic fields to regulate convective heat transfer. It shows that an external uniform stationary magnetic field perpendicular to the temperature gradient can suppress convection, leading to a slowdown in the heating and cooling processes of metal plates in a magnetic nanofluid. The results obtained provide insights into similar exchange processes in liquids under the influence of a magnetic field.
Article
Mathematics, Applied
Dipunja Gohain, Bijoy Krishna Taid, Nazibuddin Ahmed
Summary: In this study, the MHD water-based nanofluid flow past an impulsively started infinite vertical plate embedded in a porous medium is investigated, considering ramped velocity and concentration, as well as the presence of Hall effect, thermal radiation, chemical reaction, heat source/sink, and thermal diffusion. The governing equations are solved using the Laplace transform method, and the effects of various embedded parameters on velocity, temperature, and concentration profiles are analyzed through graphical interpretation. The variations of the Nusselt number, Sherwood number, and skin friction are also studied. It is found that higher nanoparticle volume fractions lead to reduced primary and secondary velocities and concentration, while increasing the temperature. Thermal diffusion increases the fluid concentration, and the rate of momentum transfer decreases with an increase in the Hall current parameter.
ZAMM-ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK
(2023)
Article
Thermodynamics
Naheeda Iftikhar, Abdul Rehman, Hina Sadaf
Summary: This study investigates the magnetohydrodynamic flow of (Cu-SiO2)/water hybrid nanofluid with consideration of peristaltic motion, using theoretical equations to model flow in four different geometric shapes. The effects of nanoparticles on velocity, temperature distribution, and heat transfer are discussed, showing direct proportionality between nanoparticle conductivity and volume. Additionally, the impact of convective heat transfer parameter is found to be higher in (Cu-SiO2)/water hybrid nanofluid compared to Cu-water nanofluid.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Article
Thermodynamics
Areum Lee, Yongseok Jeon, Veerakumar Chinnasamy, Honghyun Cho
Summary: The experimental results show that the convective heat transfer properties of cobalt-zinc ferrite nanofluids are significantly affected by magnetic field, with the CHT coefficient increasing with the concentration of nanofluids and the presence of a magnetic field.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)