Catalytic microstrider at the air-liquid interface.
Rolled-up microtubes work as catalytic striders at the air–liquid interface of hydrogen peroxide solution (sketched in the left image). Such micromachines, buoyed by oxygen bubbles, self-propel at the fuel surface by the bubble recoiling mechanism and dynamically self-assemble into patterns (right image) due to the meniscus-climbing effect.
Solovev
Alexander A
AA
Institute for Integrative Nanosciences, IFW Dresden, Dresden, 01069, Germany.
Mei
Yongfeng
Y
Schmidt
Oliver G
OG
D000388:Air; D002384:Catalysis; D006861:Hydrogen Peroxide / Q000737:chemistry*; D055616:Microtechnology / Q000379:methods*; D036103:Nanotechnology; D043942:Nanotubes / Q000737:chemistry; D010100:Oxygen / Q000737:chemistry; D012996:Solutions; D013499:Surface Properties
D012996:Solutions; D006861:Hydrogen Peroxide; D010100:Oxygen