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dc.contributor.authorLabonte, Daviden
dc.contributor.authorRobinson, Adamen
dc.contributor.authorBauer, Ulrikeen
dc.contributor.authorFederle, Walteren
dc.date.accessioned2020-11-17T00:30:13Z
dc.date.available2020-11-17T00:30:13Z
dc.date.issued2021-01en
dc.identifier.issn1742-7061
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/312941
dc.description.abstractNepenthes pitcher plants capture prey with leaves specialised as pitfall traps. Insects are trapped when they ‘aquaplane’ on the pitcher rim (peristome), a surface structured with macroscopic and microscopic radial ridges. What is the functional significance of this hierarchical surface topography? Here, we use insect pad friction measurements, photolithography, wetting experiments and physical modelling to demonstrate that the ridges enhance the traps’ efficacy by satisfying two functional demands on prey capture: Macroscopic ridges restrict lateral but enhance radial spreading of water, thereby creating continuous slippery tracks which facilitate prey capture when little water is present. Microscopic ridges, in turn, ensure that the water film between insect pad and peristome remains stable, causing insects to aquaplane. In combination, the hierarchical ridge structure hence renders the peristome wettable, and water films continuous, so avoiding the need for a strongly hydrophilic surface chemistry, which would compromise resistance to desiccation and attract detrimental contamination.
dc.description.sponsorshipBBSRC (BB/I008667/1)
dc.format.mediumPrint-Electronicen
dc.languageengen
dc.publisherElsevier
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectAnimalsen
dc.subjectPlant Leavesen
dc.subjectOrganic Chemicalsen
dc.subjectWettabilityen
dc.subjectFrictionen
dc.subjectInsectaen
dc.titleDisentangling the role of surface topography and intrinsic wettability in the prey capture mechanism of Nepenthes pitcher plants.en
dc.typeArticle
prism.endingPage233
prism.publicationDate2021en
prism.publicationNameActa biomaterialiaen
prism.startingPage225
prism.volume119en
dc.identifier.doi10.17863/CAM.60041
dcterms.dateAccepted2020-11-03en
rioxxterms.versionofrecord10.1016/j.actbio.2020.11.005en
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2021-01en
dc.contributor.orcidFederle, Walter [0000-0002-6375-3005]
dc.identifier.eissn1878-7568
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idBBSRC (BB/I008667/1)
pubs.funder-project-idLeverhulme Trust (F/09 364/G)
pubs.funder-project-idHuman Frontier Science Program (HFSP) (RGP0034/2012)
cam.orpheus.successMon Nov 23 07:30:33 GMT 2020 - Embargo updated*
cam.orpheus.counter2*
rioxxterms.freetoread.startdate2021-11-12


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Attribution-NonCommercial-NoDerivatives 4.0 International
Except where otherwise noted, this item's licence is described as Attribution-NonCommercial-NoDerivatives 4.0 International