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 ...

(A) Fabrication process of the shaftless propeller-like millirobot, including positive structures’ fabrication by 2-photon polymerization (2PP), negative mold fabrication and casting process of the ...

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 ...

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 ...

Spintronics are devices that operate leveraging the spin, an intrinsic form of angular momentum, of electrons. The ability to ...

Nanodiamond quantum sensors mounted on magnetic microbots achieve coherent spin control while moving freely through fluid, a first for untethered quantum sensing. But exploiting that sensitivity in ...