Abstract
Magnetic manipulation of a deionized (DI) water droplet on a slippery liquid-infused porous surface (SLIPS) is realized by a single magnet. The ultra-low friction nature of SLIPS enables a small magnetic reprelling force to actuate the droplet forward successfully at a velocity of 1 mm/s. In addition, this method exhibits great potential for transporting low-surface-tension fluids such as sodium dodecyl sulfate (SDS) droplets, bubbles, and magnetic nanofluids, which offer potential benefits for the design and applications of magnetically actuated droplets in droplet microfluidics.
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