2024-03-28T14:17:56Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1176782020-05-26T12:19:08Zcom_10261_31com_10261_3col_10261_284
2015-07-07T11:56:29Z
urn:hdl:10261/117678
Magnetically responsive dry fluids
Sousa, Filipa L.
Bustamante, R.
Millán, Ángel
Palacio, Fernando
Trindade, Tito
Silva, Nuno Joâo O.
Fundação para a Ciência e a Tecnologia (Portugal)
European Commission
Ministerio de Economía y Competitividad (España)
Ministerio de Ciencia e Innovación (España)
Ministerio de Educación (España)
Consejo Superior de Investigaciones Científicas (España)
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.
2015-07-07T11:56:29Z
2015-07-07T11:56:29Z
2013
2015-07-07T11:56:29Z
artículo
Nanoscale 5(16): 7229-7233 (2013)
http://hdl.handle.net/10261/117678
10.1039/C3NR01784B
http://dx.doi.org/10.13039/501100001871
http://dx.doi.org/10.13039/501100000780
http://dx.doi.org/10.13039/501100003329
http://dx.doi.org/10.13039/501100004837
http://dx.doi.org/10.13039/501100003339
eng
Sí
closedAccess
Royal Society of Chemistry (UK)