| 초록 |
Adhesion strategies that rely on mechanical interlocking or molecular attractions can suffer when coming into contact with liquids. As a result, approaches for wet and dry adhesion include fabrication of hierarchical structures, supramolecular structures, and use of catechol chemistries. However, it is challenging to develop adhesives that are simple to fabricate and perform well under wet and dry conditions, while avoiding non-chemical contamination on the engaged surfaces. Here, we present an artificial bio-inspired reversible wet/dry adhesion system based on the dome-like protuberances found in the suckers of octopi. To mimic the dome-like architecture of these protuberances, a simple air-trap technique based on a micro-patterned mold and reverse replications was used without any sophisticated chemical modifications. Our artificial sucker enhanced the suction stress and exhibited strong reversible adhesion strengths and high repeatability against glass and rough skin surfaces. |
