Researchers have found that exposing a certain class of particles -- micron-sized beads endowed with a special magnetic sensitivity -- to a rapidly alternating, rotating magnetic field causes them to ...

In the supplemental material the experimental setup is shown (see top image), which is designed to make the individual iron-coated polymer particles rotate. The particles are called Janus particles ...

While the magnetic dipoles are all the same magnitude, the direction of the dipoles can be controlled so that when driven by a rotating magnetic field, particles spin around, bump into each other and ...

The treatment of gastrointestinal and urinary system diseases has long been plagued by limitations of traditional drug delivery methods, such as low drug concentration at target sites, lack of ...

Our Sun is far from a smooth, white ball in the sky. Twisting and looping magnetic field lines rise from its surface like hair, causing dark, transient patches on the surface called sunspots wherever ...