Shape-driven optofluidic rotational actuation D. E. Lucchetta, F. Simoni, N. Sheremet, V. Reshetnyak and R. Castagna Eur. Phys. J. Plus, 136 4 (2021) 445 Published online: 25 April 2021 DOI: 10.1140/epjp/s13360-021-01365-4