PANI nanowire film with underwater superoleophobicity and potential-modulated tunable adhesion for no loss oil droplet transport

We present here for the first time an electrochemical switching for reversible superoleophobic polyaniline (PANI) nanowire film from the pinned to the rolling state underwater. Importantly, based on the unique adhesive switching, a mechanical hand for oil droplet transportation without loss was easily achieved by applying a low electrochemical potential.