Ultrafast Self-Transportation of Multimedia Droplets with a Bioinspired Microspine Array.

We present a newly developed bioinspired microspine array (BMSA), inspired by the energy gradient in cactus multispines and the liquid film sliding mechanism of rice leaves. Notably, the unmodified BMSA and the modified BMSA (MBMSA) with multiwalled carbon nanotubes (MWCNTs) demonstrate ultrafast directional transport of water and oil droplets, respectively, achieving a transport velocities as high as 102.27 and 237.