Abstract
Bio-actuated micro/nano systems using living cells and bacterium have been widely studied to create autonomous micromachines. In this study, we propose a novel type of a micromotor driven by collision of multiple Mycoplasma mobiles. Since the micromotor has asymmetric blades, it can rotate unidirectionally by the net collision of multiple Mycoplasma mobiles. We constructed a simulation software to estimate the rotation of asymmetric rotors. An optimal microrotor which has flower-type blades were fabricated by two-photon microstereolithography. It was demonstrated that the flower-type microrotor could be rotated by random movements of Mycoplasma mobiles.
