Nano watermill driven by revolving charge*
Zhou Xiao-Yana),b), Kou Jian-Longb), Nie Xue-Chuanc), Wu Feng-Min†a),b), Liu Yang‡d), Lu Hang-Jun§b)
       
(a) Average number of the hydrogen bonds inside the curved SWNT for different rotation frequencies. (b) Water density distributions inside the nanotube along the z axis under different rotation frequencies.