contrast agents for MRI (IMAGE)

National Institute of Standards and Technology (NIST)

contrast agents for MRI

Caption

NIST researcher Sam Oberdick explored contrasts agents for MRI machines along with his cohort. His group tested iron oxide nanoparticles at lower-strength magnetic fields. These nanoparticles inside the liquid solution (pictured here) are magnetic and are pulled toward the magnet through a combination of magnetic interactions and surface tension.

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R. Wilson/NIST

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