Combining the Marangoni Effect and the pH‐Responsive Superhydrophobicity–Superhydrophilicity Transition to Biomimic the Locomotion Process of the Beetles of Genus Stenus

A functional device to mimic the beetles of the genus Stenus is fabricated. A superhydrophobic hull is employed to replace the body of the beetles, with an attached reservoir to store low-surface-energy compounds to mimic the beetle's pygidial gland, and a pH-responsive mesh acts as its gland end, whose locomotion from static to mobile can respond to the pH value transformation.