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Abstract：
Inspired by the collective behaviors of active systems in nature, the collective behavior of micromotors has attracted more and more attention in recent years. However, little attention has been paid to the collective behavior of the immobilized micromotor, i.e., the micropump. In this paper, a unique pentacene-based micropump is reported, which demonstrates dynamic collective behavior activated by white light irradiation. The light irradiation may generate the photochemical reactions between pentacene and water, leading to the electroosmotic flow. As a result, this micropump is capable of pumping the surrounding solution inward along the substrate surface based on the electroosmosis mechanism. Intriguingly, the inward pumping causes the agglomeration of the tracer particles on the surface of the micropump. In addition, the aggregation can migrate following the change in the light irradiation position between two adjacent micropumps. Based on the aggregating and migrating behaviors of this pentacene-based micropump, we have achieved the conductivity restoration of the cracked circuit.
摘要：
受到自然界活跃系统的集体行为的启发，微电机的集体行为近年来引起了越来越多的关注。然而,很少关注固定微电机的集体行为，即，微型泵。在本文中,据报道，一种独特的并五苯微型泵，这表明了由白光照射激活的动态集体行为。光照射可以在并五苯和水之间产生光化学反应，导致电渗流。因此,该微型泵能够基于电渗机理将周围的溶液沿衬底表面向内泵送。有趣的是，向内泵送导致示踪剂颗粒在微泵表面上的聚集。此外,聚集可以随着两个相邻的微型泵之间的光照射位置的变化而迁移。基于这种并五苯微泵的聚集和迁移行为，我们已经实现了破裂电路的导电性恢复。
