Abstract
We proposed a two-degree-freedom magnetically driven microtool (2DOF-MMT) which can directly manipulate cells on a chip with high accuracy. The classified actuation method of MMT showed that using of the permanent magnet has an advantage over micro-electromagnetic coil in microscale in terms of the magnetic interference of MMT and actuation part. A fundamental experiment was carried out to confirm the displacement of the 2DOF-MMT actuated by a permanent magnet mounted below it. The displacement was in the range of 400-600 μm in x-direction and 250-400μm in y-direction, and the hybrid 2DOF-MMT which contain the Nickel plate show far larger displacement (30% in x-direction and 60% in y-direction). The 2DOF-MMT has potential to be used as micro-nano-robot on a chip which can be defined as Magnetically Driven Robot-on-a-Chip (MDRoC).
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