Octopus-Inspired Adhesives with Switchable Attachment to Challenging Underwater Surfaces

dc.contributor.authorLee, Chanhongen
dc.contributor.authorVia, Austin C.en
dc.contributor.authorHeredia, Aldoen
dc.contributor.authorAdjei, Daniel A.en
dc.contributor.authorBartlett, Michael D.en
dc.date.accessioned2024-10-11T13:48:19Zen
dc.date.available2024-10-11T13:48:19Zen
dc.date.issued2024-10-09en
dc.description.abstractAdhesives that excel in wet or underwater environments are critical for applications ranging from healthcare and underwater robotics to infrastructure repair. However, achieving strong attachment and controlled release on difficult substrates, such as those that are curved, rough, or located in diverse fluid environments, remains a major challenge. Here, an octopus-inspired adhesive with strong attachment and rapid release in challenging underwater environments is presented. Inspired by the octopus’s infundibulum structure, a compliant, curved stalk, and an active deformable membrane for multi-surface adhesion are utilized. The stalk’s curved shape enhances conformal contact on large-scale curvatures and increases contact stress for adaptability to small-scale roughness. These synergistic mechanisms improve contact across multiple length scales, resulting in switching ratios of over 1000 within ≈30 ms with consistent attachment strength of over 60 kPa on diverse surfaces and conditions. These adhesives are demonstrated through the robust attachment and precise manipulation of rough underwater objects.en
dc.description.sponsorshipC.L., A.C.V., A.H., D.A.A., and M.D.B. acknowledge support from the National Science Foundation (NSF) under the DMREF program (award number: 2119105).en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1002/advs.202407588en
dc.identifier.urihttps://hdl.handle.net/10919/121327en
dc.language.isoenen
dc.publisherWiley-VCHen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleOctopus-Inspired Adhesives with Switchable Attachment to Challenging Underwater Surfacesen
dc.title.serialAdvanced Scienceen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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