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Challenge Biomedical Science – Nanotechnology

Challenge Biomedical Science – Nanotechnology. Ferrofluid.

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Challenge Biomedical Science – Nanotechnology

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  1. Challenge Biomedical Science – Nanotechnology Ferrofluid Ferrofluid was originally developed by NASA in the 1960s as a way to control liquids in gravity-free outer space. It’s a liquid base (solvent or water) with loads of nanoscale magnetite particles in it. This means the fluid is attracted to magnets, and spikes up in the shape of the magnetic field lines. You will now be handed a small petri dish with some ferrofluid in it and a few magnets. Slowly bring the magnets closer to the petri dish from below and see what happens. Make sure everyone at your table has a go at this. PLEASE DO NOT TURN PETRI DISH.

  2. Challenge Biomedical Science – Nanotechnology Ferrofluid Applications Ferrofluid is used as a damper fluid to reduce unwanted resonance in speakers. In a similar it can be used as a shock absorber in cars. It is thought that the damping property of ferrofluid could also be used to make buildings earthquake-resistant. The US Airforce have introduced paint made with ferrofluid. Airplanes painted with this paint are able to absorb radar waves and remain invisible to radar when they pass overhead. In medicine, ferrofluid can be used to detect cancer cells. Future Researchers are attempting to design ferrofluids that can carry medications to specific locations in the body through the use of applied magnetic fields. Other ongoing work is investigating the use of ferrofluids as to help with magnetic resonance imaging (MRI).

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