Photocontrol of a water droplet moving upward. (Courtesy: X Du) A super-slippery material that regenerates its surface charge when illuminated could pave the way for next-generation interfacial materials and microfluidics. The new material is a combination of a copolymer, tiny liquid metal particles and lubricant-trapping microstructures, and its developers ...
View more: Light restores charge to slippery surfaces