05 September 2014
Vol 345, Issue 6201

About The Cover

Cover image expansion

COVER Artist's impression of how a monolayer of aligned microtubule filaments is assembled on the inner leaflet of a lipid bilayer. Powered by molecular motors, liquid crystalline microtubules generate dynamic states that include sustained oscillations of topological defects and shape-changing materials with streaming filopodia-like protrusions. See page 1135.
Image: Christoph Hohmann, Nanosystems Initiative Munich