Review
Materials Science, Multidisciplinary
Madhusree Kole, Sameer Khandekar
Summary: Ferrofluids are stable colloidal suspensions of nanometric sized ferromagnetic particles in conventional basefluids, with their ferromagnetic property changed to superparamagnetism. They have diverse applications due to their unique thermophysical properties, ranging from computer hard discs to bio-medical applications.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2021)
Review
Nanoscience & Nanotechnology
Mohd Imran, Adnan Mohammed Affandi, Md Mottahir Alam, Afzal Khan, Asif Irshad Khan
Summary: Ferrofluids, as stable colloidal suspensions of magnetic nanoparticles in base fluids, exhibit high thermal conductivity, good stability, and magnetic properties. They are mainly based on iron oxide nanostructures due to their easy synthesis and low costs. In biomedical applications, ferrofluids can be used for hyperthermia, drug delivery, MRI, and cell separation.
Review
Chemistry, Physical
Nataliia Dudchenko, Shweta Pawar, Ilana Perelshtein, Dror Fixler
Summary: This review provides an overview of the synthesis, properties, and applications of magnetite nanoparticles in optics.
Article
Chemistry, Multidisciplinary
Sai Zhao, Jun-Yan Zhang, Yuchen Fu, Shipei Zhu, Ho Cheung Shum, Xubo Liu, Zhaoyu Wang, Ruquan Ye, Ben Zhong Tang, Thomas P. Russell, Yu Chai
Summary: Ferrofluids can form structures and maintain their shape in a magnetic field, exhibiting reconfigurability and structural stability. By manipulating the external magnetic field, the shape of ferrofluids can be remotely written and erased repeatedly. This study provides a new method for manipulating ferrofluids and opens possibilities for the fabrication of all-liquid devices.
Article
Multidisciplinary Sciences
Saeed Azad, Satyendra Kumar Mishra, Ghasem Rezaei, Ricardo Izquierdo, Bora Ung
Summary: A fast-response, highly sensitive magnetic field sensor using a photonic crystal fiber infiltrated with polyethylene glycol-based magnetic fluid has been developed. The sensor demonstrates a quick response time, high sensitivity, and a wide detection range, making it a promising platform for novel biochemical sensing applications.
SCIENTIFIC REPORTS
(2022)
Article
Computer Science, Interdisciplinary Applications
W. M. Yang
Summary: This work discretizes the governing equations of magnetic field for different types of magnetic media and discusses the rules for coefficient and interface permeability formulation. It introduces a new solver magneticMultiRegionFoam based on FVM in the OpenFOAM framework, which is validated through comparisons with Comsol software and analytical methods. The solver is specifically designed for static magnetic fields with multi-regions and shows better consistency with experimental results than Comsol software.
COMPUTER PHYSICS COMMUNICATIONS
(2021)
Review
Chemistry, Analytical
Reyhaneh Nayebi, Farzaneh Shemirani
Summary: The advancement of smart materials, like ferrofluids, has greatly impacted sample preparation techniques. Ferrofluids, being liquid and magnetically controllable, have attracted attention for their role in separating analytes and facilitating recovery. While ferrofluid-based microextraction techniques offer precise positioning and recovery benefits, challenges and future prospects are also present.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2021)
Article
Mechanics
Angbo Fang
Summary: We have developed a consistent hydrodynamic theory for ferrofluids that can be concentrated, strongly interacting, and polydisperse. We have analyzed the dynamics of ferrocolloids under imposed flow and magnetic field, settling the long-standing debate on the correct reactive contribution to magnetization dynamics. We have obtained a fundamental mesoscopic rotational fluctuation-dissipation relation with far-reaching consequences on ferrofluid hydrodynamics.
Review
Chemistry, Multidisciplinary
Indranil Roy, Arthur H. G. David, Partha Jyoti Das, David J. Pe, J. Fraser Stoddart
Summary: This review highlights the recent developments in the chemistry of fluorescent cyclophanes, including their design and synthesis, as well as their applications related to host-guest chemistry and their structure and properties.
CHEMICAL SOCIETY REVIEWS
(2022)
Article
Multidisciplinary Sciences
Patrick Ilg, Martin Kroger
Summary: The field-dependent relaxation dynamics of suspended magnetic nanoparticles is an important topic in basic science and has significant implications for technological and biomedical applications. Despite numerous studies in recent years, conflicting findings have hindered the development of a consistent understanding. In this study, we present a dynamic mean-field theory and computer simulations to investigate the influence of key parameters on the relaxation dynamics of magnetic nanoparticles. Our findings contribute to reconciling contradictory results and provide insights for optimizing magnetic fluid heating applications.
SCIENTIFIC REPORTS
(2023)
Article
Mechanics
Qianqian Chen, Decai Li, Zhifan Yang, Zhengyan Xue, Jiangtao Hao, Hui Wang, Sankui Xu, Qi Chen
Summary: In this study, water-based Fe3O4 magnetic fluids were prepared with various surfactants and their effects on magnetic surface tension were investigated under a constant magnetic field. The results showed that the stability of Fe3O4-SDS magnetic fluid was greatly improved, and the magnetic surface tension was found to be influenced significantly by the magnetization time and direction.
Article
Chemistry, Physical
Patrick Ilg
Summary: In this study, a new mesoscopic model for the dynamics and flow of ferrofluids is proposed. By coupling the multi-particle collision dynamics method with the stochastic magnetization dynamics of suspended magnetic nanoparticles, this hybrid model is validated and applied to various flow phenomena.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Review
Chemistry, Multidisciplinary
Chen Wang, Michael P. O'Hagan, Ziyuan Li, Junji Zhang, Xiang Ma, He Tian, Itamar Willner
Summary: Photoresponsive nucleic acids have significant implications in materials science, allowing for the development of light-sensitive devices and materials with applications in catalysis, sensing, and drug delivery. The integration of photoisomerizable units into DNA strands enables reversible reconfiguration of nucleic acid architectures, providing control over the composition and properties of nanostructures.
CHEMICAL SOCIETY REVIEWS
(2022)
Article
Materials Science, Multidisciplinary
Erik Garofalo, Matteo Bevione, Luca Cecchini, Alessandro Chiolerio
Summary: Energy recovery and conversion systems are recognized worldwide as solutions to reduce energy losses. This study demonstrates an alternative method to thermoelectricity generation using a magnetic colloid based on Fe3O4 nanoparticles. The findings show that the magnetic fluid exhibits both triboelectric and pyroelectric properties, with a remarkable pyroelectric coefficient.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Chemistry, Physical
Sithara Vinod, John Philip
Summary: Nanofluids, particularly magnetic nanofluids, have attracted significant attention in the research of cooling applications due to their tunable thermal conductivity and rheological properties. The aggregation of magnetic nanoparticles in the presence of a magnetic field improves the thermal transport substantially. Recent studies have shown that smaller and narrow size distribution ferrofluids display enhanced thermal conductivity with negligible viscosity enhancement, making them ideal for effective thermal management of miniature electronic devices. However, highly polydisperse ferrofluids containing large aggregates show modest enhancement in thermal conductivity and significant enhancement in viscosity. Additionally, the magnetic field ramp rate affects the aggregation kinetics and thermal and rheological properties. A comprehensive review on the fundamental understanding of field-induced thermal and rheological properties in magnetic fluids is lacking in the literature.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2022)
