Magnetically responsive dry fluids
authors Sousa, FL; Bustamante, R; Millan, A; Palacio, F; Trindade, T; Silva, NJO
nationality International
journal NANOSCALE
keywords WATER; NANOPARTICLES; EMULSIONS; PARTICLES; FOAMS
abstract Ferrofluids and dry magnetic particles are two separate classes of magnetic materials with specific niche applications, mainly due to their distinct viscosity and interparticle distances. For practical applications, the stability of these two properties is highly desirable but hard to achieve. Conceptually, a possible solution to this problem would be encapsulating the magnetic particles but keeping them free to rotate inside a capsule with constant interparticle distances and thus shielded from changes in the viscosity of the surrounding media. Here we present an example of such materials by the encapsulation of magnetic ferrofluids into highly hydrophobic silica, leading to the formation of dry ferrofluids, i.e., a material behaving macroscopically as a dry powder but locally as a ferrofluid where magnetic nanoparticles are free to rotate in the liquid.
publisher ROYAL SOC CHEMISTRY
issn 2040-3364
year published 2013
volume 5
issue 16
beginning page 7229
ending page 7233
digital object identifier (doi) 10.1039/c3nr01784b
web of science category Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied
subject category Chemistry; Science & Technology - Other Topics; Materials Science; Physics
unique article identifier WOS:000322315600015
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  impact metrics
journal analysis (jcr 2017):
journal impact factor 7.233
5 year journal impact factor 7.713
category normalized journal impact factor percentile 86.592
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