Results 161 to 170 of about 8,758 (198)
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Shape-Reconfigurable Ferrofluids
Nano Letters, 2022Ferrofluids (FFs) can adapt their shape to a magnetic field. However, they cannot maintain their shape when the magnetic field is removed. Here, with a magneto-responsive and reconfigurable interfacial self-assembly (MRRIS) process, we show that FFs can be structured by a magnetic field and maintain their shape, like solids, after removing the magnetic
Sai Zhao +10 more
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2023
Abstract An explanation of the structure and components in a ferrofluid is presented together with a simple preparation process to produce these magnetic liquids. Unusual phenomena such as the surface and labyrinthine instabilities are then described.
K. O’Grady +2 more
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Abstract An explanation of the structure and components in a ferrofluid is presented together with a simple preparation process to produce these magnetic liquids. Unusual phenomena such as the surface and labyrinthine instabilities are then described.
K. O’Grady +2 more
openaire +1 more source
Applied Optics, 2006
A magnetic liquid mirror based on ferrofluids was demonstrated. Magnetic liquid mirrors represent a major departure from solid mirror technology. They present both advantages and disadvantages with respect to established technologies. Stroke (from a fraction of a wave to several hundreds of micrometers), cost (a few dollars per actuator), and ...
P, Laird +4 more
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A magnetic liquid mirror based on ferrofluids was demonstrated. Magnetic liquid mirrors represent a major departure from solid mirror technology. They present both advantages and disadvantages with respect to established technologies. Stroke (from a fraction of a wave to several hundreds of micrometers), cost (a few dollars per actuator), and ...
P, Laird +4 more
openaire +2 more sources
Biomedical Engineered Ferrofluids
MRS Proceedings, 2007AbstractThe characteristic of combining liquid behavior with and magnetic properties makes ferrofluids unique and it provides them a variety of applications, in particular in the medial field. For medical application ferrofluids are required to be stable at neutral pH and against high salt concentration.
Koser, Hur +5 more
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Ferrofluid mediated nanocytometry
Lab Chip, 2012We present a low-cost, flow-through nanocytometer that utilizes a colloidal suspension of non-functionalized magnetic nanoparticles for label-free manipulation and separation of microparticles. Our size-based separation is mediated by angular momentum transfer from magnetically excited ferrofluid particles to microparticles.
Ayse Rezzan, Kose, Hur, Koser
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Structure of ferrofluid dynamics
Physical Review E, 2001The complete magnetodissipative structure of ferrofluid dynamics is derived from general principles, without reference to the angular momentum of the ferromagnetic grains. The results are independent of most microscopic details, and easily interpret two previous experiments.
Müller, H., Liu, M.
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A Shapeshifting Ferrofluidic Robot
Soft Robotics, 2021To create a miniature shapeshifting robot capable of controlled movement, subdivision, regeneration, passage through small channels, engulfment of particles, object manipulation, and flow manipulation, a droplet of magnetically responsive ferrofluid is used.
Reza, Ahmed +4 more
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Transport properties of ferrofluids
Physical Review E, 2003Long-time self-diffusion coefficients of ferrofluid suspensions are derived from an effective Langevin equation approach. The dependences of these transport properties on the volume fraction of particles and the strength of interparticle interaction are investigated.
M, Hernández-Contreras +1 more
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Viscoelastic properties of ferrofluids
Physical Review E, 2010The paper deals with theoretical study of non linear viscoelastic phenomena in ferrofluids placed in magnetic field. Our attention is focused on the study of nonstationary flow and Maxwell-like relaxation of the macroscopical viscous stress after alternation of the shear rate. We propose that these phenomena can be explained by finite rate of evolution
Chirikov, D N +3 more
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