Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education;
School of Chemistry;
Beihang University;
Beijing 100191;
China;
Laboratory of Bio-inspired Materials and Interface Sciences;
Technical Institute of Physics and Chemistry;
Chinese Academy of Sciences;
Beijing 100190;
China;
School of Chemical Engineering and Technology;
State Key Laboratory of Chemical Engineering;
Tianjin University;
Tianjin 300354;
China;
Slippery surface; Shape-gradient; Asymmetric driving force; Smart bubble transport; Harsh environment;