| 초록 |
Adhesion strategies that rely on mechanical interlocking or molecular attractions between surfaces 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 both wet and dry conditions, whilst 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 particular architecture, a simple air-trap technique based on a micro-patterned mould and replications was used without any sophisticated chemical syntheses. This artificial adhesive exhibited strong reversible adhesion strengths and high repeatability in various contact conditions against glass and rough skin surfaces. |
