Scientists develop microscopic 'swimming' discs that could help clean polluted waters: 'Pave the way for applications'
A research team led by Juan de Pablo has developed microscopic swimming discs made from food dye and propylene glycol that can harvest energy and move through liquid crystal fluid. When hit with LED light, the dye converts it to heat, causing liquid crystals to melt and push the disc forward. de Pablo said the discovery could "pave the way for applications" including drug delivery, sensors, and water pollutant cleanup.
