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Ferrofluid is a liquid that is attracted to the poles of a magnet.It is a colloidal liquid made of nanoscale ferromagnetic or ferrimagnetic particles suspended in a carrier fluid (usually an organic solvent or water). [1]
Another application of magnetic nanoparticles is in the creation of ferrofluids. These are used in several ways. Ferrofluids can be used for targeted drug delivery in the human body. [78] The magnetization of the particles bound with drug molecules allows "magnetic dragging" of the solution to the desired area of the body.
Ferrofluidic seals rely on the general principle of ferrofluids - fluids that display magnetic attraction.Following research on ferrofluids during the 1960s, the ferrofluidic seal was first patented in 1971 by R.E. Rosensweig (USP 3,620,584), who subsequently founded Ferrofluidics Corporation with R. Moskowitz.
Thermomagnetic convection can occur when an external magnetic field is imposed on a ferrofluid with varying magnetic susceptibility. In the presence of a temperature gradient this results in a nonuniform magnetic body force, which leads to fluid movement. A ferrofluid is a liquid which becomes strongly magnetized in the presence of a magnetic ...
A magnetorheological fluid (MR fluid, or MRF) is a type of smart fluid in a carrier fluid, usually a type of oil. When subjected to a magnetic field, the fluid greatly increases its apparent viscosity, to the point of becoming a viscoelastic solid. [1]
Ferrofluid on glass, with a rare-earth magnet underneath. A rare-earth magnet is a strong permanent magnet made from alloys of rare-earth elements.Developed in the 1970s and 1980s, rare-earth magnets are the strongest type of permanent magnets made, producing significantly stronger magnetic fields than other types such as ferrite or alnico magnets.
Ferreira designed and tested a method to remove microplastics from water, following what he described as thousands of failed attempts. Ferreira has stated that he was inspired by an article by Fermilab physicist Arden Warner, who developed a new approach to cleaning up oil spills, using magnetic principles, [10] and made a device that uses a magnet-based method to remove the particles from ...
Magnoliopsida is a valid botanical name for a class of flowering plants. [1] By definition the class will include the family Magnoliaceae , but its circumscription can otherwise vary, being more inclusive or less inclusive depending upon the classification system being discussed.