Prediction of Giant Electro-actuation for Carbon Nanoscrolls
  We study by first-principles calculations the electro-mechanical response of carbon nanoscrolls. We show that although they present a very similar behavior to carbon nanotubes for what concerns the axial deformation sensitivity, they exhibit a radial response upon charge injection which is up to one order of magnitude larger. In association with their high stability, this behavior make them a natural choice for a new class of very efficient nano-actuators. 
R. Rurali, V. R. Coluci, D. S. Galv\~ao