Article
Chemistry, Multidisciplinary
Vahid Nasirimarekani, Fernando Benito-Lopez, Lourdes Basabe-Desmonts
Summary: The technology involves manipulating droplets using a magnetic field through the addition of magnetic particles or using magneto responsive surfaces. The experimental study presented and characterized a tunable superparamagnetic ring which stabilizes and enables physical manipulation of droplets on a surface. This work opens new applications in microfluidics and studies on tunable interfaces between immiscible liquids.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Iacopo Mattich, Joan Sendra, Henning Galinski, Golnaz Isapour, Ahmet F. Demirors, Marco Lattuada, Simone Schuerle, Andre R. Studart
Summary: The assembly of superparamagnetic colloids inside droplets under rotating magnetic fields is studied, and this phenomenon is exploited to create functional optical devices.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Lucija Mandic, Marija Matkovic, Goran Baranovic, Suzana Segota
Summary: The release kinetics of quercetin from magnetic nanoparticles can be controlled by stationary and alternating magnetic fields, affecting the distribution of quercetin between nanoparticles and the suspension within the membrane. This understanding can be applied to the release of insoluble flavonoids in aqueous suspensions.
Article
Chemistry, Physical
Chase Austyn Brisbois, Monica Olvera de la Cruz
Summary: The dynamic motion caused by precessing magnetic fields can lead to far-from-equilibrium states in matter. We predict the existence of 1D periodic ordering in systems of precessing rods when the magnetic interactions between rods are insignificant. The precession angle of the rods is determined by the field's precession angle and the ratio of the field's precession frequency to the characteristic response frequency of the rods. Our work, including molecular dynamics simulations and steric modeling, demonstrates how steric interactions drive rods from a disordered phase to a layered phase, and how minimizing unfavorable steric interactions leads to phase separation in binary mixtures. This research contributes to the understanding and control of out-of-equilibrium soft matter systems.
Article
Biochemical Research Methods
Roozbeh Abedini-Nassab, Sajjad Bahrami
Summary: This study introduces a novel microfluidic platform for precise manipulation of single particles and magnetized cells, achieving simultaneous transport of multiple particles and demonstrating a curved transportation method. The technology has the potential for applications in the fields of lab-on-a-chip, single-cell biology, and drug screening.
Article
Physics, Multidisciplinary
J. Choi, Q. Wang, S. Joehr, N. B. Christensen, J. Kuespert, D. Bucher, D. Biscette, M. H. Fischer, M. Huecker, T. Kurosawa, N. Momono, M. Oda, O. Ivashko, M. Zimmermann, M. Janoschek, J. Chang
Summary: In the cuprates, the unidirectional nature of the CDW in La1.88Sr0.12CuO4 was established using x-ray diffraction with uniaxial pressure. A significant enhancement of the CDW amplitude was found when homogeneous superconductivity was partially suppressed by a magnetic field.
PHYSICAL REVIEW LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Junhee Choi, Dong-In Kim, Jin-Young Kim, Salvador Pane, Bradley J. Nelson, Young-Tae Chang, Hongsoo Choi
Summary: This study investigated the enhancement of intracellular uptake of superparamagnetic iron oxide nanoparticles (SPIONs) through the use of rotating magnetic fields (RMFs). The physical parameters for favorable chain length for intracellular uptake were predicted and validated. The study also showed that enhanced intracellular uptake reduced magnetic hyperthermia time and strength, as well as particle concentration.
Article
Astronomy & Astrophysics
V. V. Pipin
Summary: Through non-linear mean-field dynamo models, we investigate the magnetic cycle parameters of solar analogues with different rotation periods, finding a non-linear relationship between rotation rate and dynamo period, as well as saturation of magnetic activity parameters accompanied by a decrease in differential rotation.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Review
Chemistry, Physical
Aldo Spatafora-Salazar, Dana M. Lobmeyer, Lucas H. P. Cunha, Kedar Joshi, Sibani Lisa Biswal
Summary: Magnetic-guided colloidal assembly has been proven to be a versatile method for building hierarchical particle assemblies with increasing complexity and novel dynamics. By controlling dipolar interactions in static and time-varying magnetic fields, different hierarchical structures like 1-D chains, 2-D networks, and 2-D clusters can be formed, displaying a variety of dynamic phenomena.
Article
Biochemistry & Molecular Biology
Nicolas Debons, Kenta Matsumoto, Noriyuki Hirota, Thibaud Coradin, Toshiyuki Ikoma, Carole Aime
Summary: The study involves the preparation of bionanocomposites from tilapia fish scale collagen and multifunctional silica nanoparticles under high magnetic field, showing the potential of these scaffolds to improve cell performance.
Article
Mechanics
Jie Zhang, Md Rifat Hassan, Cheng Wang
Summary: Numerical investigation was conducted on the particle-particle interaction and relative motion of a pair of equal-sized magnetic particles in simple shear and plane Poiseuille flows. The direction and strength of the magnetic field were found to have significant effects on the dynamics of the particles, impacting their trajectories and relative motion. This study provides insights into understanding the mechanisms of particle-particle interaction in magnetorheological fluids under a uniform magnetic field.
Article
Biochemistry & Molecular Biology
Lucija Mandic, Anja Sadzak, Ina Erceg, Goran Baranovic, Suzana Segota
Summary: Superparamagnetic magnetite nanoparticles were prepared using solvothermal method and stabilized with biocompatible polymer PEG-4000 Da. These nanoparticles can deliver and localize the water-insoluble quercetin to desired site by employing combined stationary and alternating magnetic fields, as proven by various analytical techniques. The study demonstrated increased response of quercetin release from superparamagnetic MNPs under specific magnetic field conditions.
Article
Chemistry, Multidisciplinary
Dongquan Peng, Ce Hu, Xingfang Luo, Jinli Huang, Yan Ding, Wenda Zhou, Hang Zhou, Yong Yang, Ting Yu, Wen Lei, Cailei Yuan
Summary: This study successfully confined EC-reconstructed NiFe/NiFeOOH core/shell nanoparticles in a highly conductive carbon matrix, leading to significant improvement in oxygen evolution reaction (OER) electrocatalytic activity. Furthermore, the OER efficiency was further enhanced through the functionalization of superparamagnetic NiFe cores using magnetic heating effect.
Article
Chemistry, Multidisciplinary
Qiangqiang Zhang, Hui Song, Ruhong Song, Xianguo Hu
Summary: Based on the magnetic response of particles, a segmental magnetization model was proposed to accurately calculate the magnetic force and analyze the effects of magnetic field strength and particle diameter on particle trajectory. Simulation results showed that particle size affected velocity but not trajectory, while changes in magnetic field strength resulted in different trajectories. Notably, when the magnetic field force in the Y direction was large enough, the trajectory of particles remained constant regardless of the magnetic field strength variation.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Multidisciplinary
Lin Zeng, Xi Chen, Jing Du, Zitong Yu, Rongrong Zhang, Yi Zhang, Hui Yang
Summary: The study presents a microfluidic system with an ultrahigh magnetic field for label-free separation of nanoscale particles. By utilizing high-permeability alloys and on-chip integrated magnetic micro-pole arrays, the system achieves efficient separation of nanoparticles without the need for labeling procedures, demonstrating high performance in terms of resolution and purity.
