It is now shown that liquid-interface assembly is effective for generating ... The presence of an external magnetic field creates a large change in electrical resistance, which is the basis ...

A new kind of magnetic tweezers can make torque measurements on single molecules. Sean Sun, a professor of engineering at Johns Hopkins University, had what seemed to be a straightforward goal ...

In this study, the researchers designed a swarm of cube-shaped microrobots, which have stronger magnetic attraction due to ... swarms with different assembly configurations to evaluate their ...