Light-Driven Hovering of a Magnetic Microswarm in Fluid.

  title={Light-Driven Hovering of a Magnetic Microswarm in Fluid.},
  author={Fengtong Ji and Dongdong Jin and Ben Wang and Li Zhang},
  journal={ACS nano},
Swarm behaviors are nature's strategies for performing cooperative work, and extensive research has been aimed at emulating these strategies in engineering systems. However, the implementation of vertical motion and construction of a 3D structure are still challenging. Herein we propose a simple strategy for creating a hybrid-driven paramagnetic tornado-like microswarm in an aqueous solution by integrating the use of a magnetic field and light. The precession of a magnetic field results in in… 

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