We directly measured the torque on a single DNA molecule as it underwent a phase transition from B-form to supercoiled P-form. Nature Methods - Nanofabricated quartz cylinders for angular trapping ...

Twisted light: self-torque could be used to manipulate molecules. (Courtesy: iStock/VikaSuh) Physicists in Spain and the US have shown that the orbital angular momentum, or twistedness, of light can ...

Abstract: Summary form only given. The ability of a spin-polarized current to reversibly switch the orientation of the magnetic moment of a nanomagnet, and/or to excite it into microwave precession, ...