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Superparamagnetism: Quiz


Question 1: In this state, an external magnetic field is able to magnetize the nanoparticles, similarly to a ________.

Question 2: Superparamagnetism sets a limit on the storage density of ________ due to the minimum size of particles that can be used.
Floppy diskUniversal Serial BusUSB flash driveHard disk drive

Question 3: However, their ________ is much larger than the one of paramagnets.
Magnetic susceptibilityCarbonXenonMagnetic moment

Question 4: Superparamagnetism is a form of magnetism, which appear in small ________ or ferrimagnetic nanoparticles.
CobaltIronFerromagnetismMagnetic field

Question 5: Imaging: Contrast agents in ________ (MRI)
Medical imagingFunctional magnetic resonance imagingPositron emission tomographyMagnetic resonance imaging

Question 6: One suggested technique to further extend recording densities on hard disks is to use ________ rather than the conventional longitudinal recording.
Memory storage densityHard disk driveLaptopPerpendicular recording

Question 7: Treatments: targeted drug delivery, ________, magnetofection
FerrofluidMagnetic nanoparticlesMagnetic hyperthermiaContrast medium


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