Seasonal changes in morphology govern wettability of Katsura leaves

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dc.contributor.authorKang, Hosungen
dc.contributor.authorGraybill, Philip M.en
dc.contributor.authorFleetwood, Saraen
dc.contributor.authorBoreyko, Jonathan B.en
dc.contributor.authorJung, Sunghwanen
dc.contributor.departmentMechanical Engineeringen
dc.contributor.departmentBiomedical Engineering and Mechanicsen
dc.contributor.departmentMaterials Science and Engineering (MSE)en
dc.date.accessioned2019-05-31T14:08:24Zen
dc.date.available2019-05-31T14:08:24Zen
dc.date.issued2018-09-27en
dc.description.abstractDeciduous broad-leaf trees survive and prepare for winter by shedding their leaves in fall. During the fall season, a change in a leaf's wettability and its impact on the leaf-fall are not well understood. In this study, we measure the surface morphology and wettability of Katsura leaves from the summer to winter, and reveal how leaf structural changes lead to wettability changes. The averaged contact angle of leaves decreases from 147 degrees to 124 degrees while the contact-angle hysteresis significantly increases by about 35 degrees, which are attributed to dehydration and erosion of nano-wax. Due to such wettability changes, fall brown leaves support approximately 17 times greater water volume than summer leaves.en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1371/journal.pone.0202900en
dc.identifier.eissn1932-6203en
dc.identifier.issue9en
dc.identifier.othere0202900en
dc.identifier.pmid30260963en
dc.identifier.urihttp://hdl.handle.net/10919/89659en
dc.identifier.volume13en
dc.language.isoenen
dc.publisherPLOSen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleSeasonal changes in morphology govern wettability of Katsura leavesen
dc.title.serialPLOS ONEen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.dcmitypeStillImageen

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