3DOF dual-arm microrobots enabling force sensing in a microfluidic chip

In this paper, we propose 3DOF dual-arm microrobots which enabling manipulation and force sensing for a single cell of microorganisms in a microfluidic chip. The untethered microrobots are actuated by permanent magnets which can supply mN order force to stimulate microorganisms and measure the applied force where we want to measure them. The design and fabrication of the untethered microrobots with force sensing structure are discussed. Through the basic experiment, the advantages of the proposed methods and the performance of the 3DOF dual-arm microrobots are confirmed. We also perform the manipulation and force sensing experiment for microorganisms by the developed microrobots.