University of Warwick scientists have shown how to tie knots in liquid crystals using a miniature Mobius strip made from silica particles. By tying substances like this in knots, researchers hope to understand how. their intricate configurations and unique properties canbe harnessed inthe next generation of advanced materials and photonic devices. Liquid crystal is an essential material in modern life - the flat panel displays on our computers, TVs and smartphones all make use of its light-modulating properties. It is composed of long, thin, rod-like molecules which align themselves so they all point in the same direction. By controlling the alignment of these molecules, scientists can literally tie them in a knot.
展开▼
