论文标题
3-D打印的游泳微型摩托车用于货物运输和流动操纵
3-D Printed Swimming Microtori for Cargo Transport and Flow Manipulation
论文作者
论文摘要
经过数十亿年的进化，微生物掌握了独特的游泳行为，使其在复杂的液体环境中蓬勃发展。迄今为止，纳米化的局限性阻碍了设计和计划具有相同能力的合成游泳者的能力。在这里，我们在人工游泳者中编码多行为反应，例如使用Nanoscale 3D打印，例如显微镜，自propel的Tori。我们在实验上和理论上表明，摩托车响应于磁场而在两种主要游泳模式之间连续过渡。 Tori还操纵和运输其他人工游泳者，双金属纳米棒以及被动胶体颗粒。在第一个行为模式下，摩托车积累并运输纳米棒。在第二种模式下，纳米棒沿Tori的自我生成的流线对齐。我们的结果表明，这种形状编程的微武器有可能操纵生物活性物质，例如细菌或细胞。
Through billions of years of evolution, microorganisms mastered unique swimming behaviors to thrive in complex fluid environments. Limitations in nanofabrication have thus far hindered the ability to design and program synthetic swimmers with the same abilities. Here we encode multi-behavioral responses in artificial swimmers such as microscopic, self-propelled tori using nanoscale 3D printing. We show experimentally and theoretically that the tori continuously transition between two primary swimming modes in response to a magnetic field. The tori also manipulate and transport other artificial swimmers, bimetallic nanorods, as well as passive colloidal particles. In the first behavioral mode, the tori accumulate and transport nanorods; in the second mode, nanorods align along the tori's self-generated streamlines. Our results indicate that such shape-programmed microswimmers have the potential to manipulate biological active matter, e.g. bacteria or cells.
