Enhanced magneto-actuation of micropillar arrays and programmed liquid spreading by tailored geometry factors
발표자
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초록
내용
Alignments of magnetic particles within polymeric composites can be pre-programmed in micropillars by external magnetic field. Magneto-actuation of micropillar arrays is markedly different dependent on the alignment axis with respect to the main axis of the micropillars. We will discuss generation of reversible twisting and bending actuation modes without significant magneto-hysteresis. In particular, asymmetric geometry can introduce easy axis of deformation by breaking symmetry. In addition, we will discuss programmable liquid spreading achieved by manipulation of magneto-actuation.