Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/154001
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dc.contributor.authorZhao, Zeen_US
dc.contributor.authorHwang, Youngkyuen_US
dc.contributor.authorYang, Yunen_US
dc.contributor.authorFan, Tengfeien_US
dc.contributor.authorSong, Juhaen_US
dc.contributor.authorSuresh, Subraen_US
dc.contributor.authorCho, Nam-Joonen_US
dc.date.accessioned2021-12-14T01:07:04Z-
dc.date.available2021-12-14T01:07:04Z-
dc.date.issued2020-
dc.identifier.citationZhao, Z., Hwang, Y., Yang, Y., Fan, T., Song, J., Suresh, S. & Cho, N. (2020). Actuation and locomotion driven by moisture in paper made with natural pollen. Proceedings of the National Academy of Sciences of the United States of America, 117(16), 8711-8718. https://dx.doi.org/10.1073/pnas.1922560117en_US
dc.identifier.issn0027-8424en_US
dc.identifier.urihttps://hdl.handle.net/10356/154001-
dc.description.abstractHere we describe the development of a humidity-responsive sheet of paper that is derived solely from natural pollen. Adaptive soft material components of the paper exhibit diverse and well-integrated responses to humidity that promote shape reconfiguration, actuation, and locomotion. This mechanically versatile and nonallergenic paper can generate a cyclically high contractile stress upon water absorption and desorption, and the rapid exchange of water drives locomotion due to hydrodynamic effects. Such dynamic behavior can be finely tuned by adjusting the structure and properties of the paper, including thickness, surface roughness, and processing conditions, analogous to those of classical soapmaking. We demonstrate that humidity-responsive paper-like actuators can mimic the blooming of the Michelia flower and perform self-propelled motion. Harnessing the material properties of bioinspired systems such as pollen paper opens the door to a wide range of sustainable, eco-friendly, and biocompatible material innovation platforms for applications in sensing, actuation, and locomotion.en_US
dc.description.sponsorshipAgency for Science, Technology and Research (A*STAR)en_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.language.isoenen_US
dc.relationNRF-CRP10-2012-07en_US
dc.relationA1983c031en_US
dc.relation.ispartofProceedings of the National Academy of Sciences of the United States of Americaen_US
dc.rights© 2020 the Author(s). Published by PNAS. This open access article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND).en_US
dc.subjectEngineering::Materialsen_US
dc.subjectEngineering::Bioengineeringen_US
dc.titleActuation and locomotion driven by moisture in paper made with natural pollenen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.contributor.schoolSchool of Chemical and Biomedical Engineeringen_US
dc.identifier.doi10.1073/pnas.1922560117-
dc.description.versionPublished versionen_US
dc.identifier.pmid32253309-
dc.identifier.scopus2-s2.0-85083508711-
dc.identifier.issue16en_US
dc.identifier.volume117en_US
dc.identifier.spage8711en_US
dc.identifier.epage8718en_US
dc.subject.keywordsNatural Materialsen_US
dc.subject.keywordsBiomimeticsen_US
dc.description.acknowledgementThis work was supported by the National Research Foundation of Singapore through a Competitive Research Program grant (NRF-CRP10-2012-07) and by Agency for Science, Technology and Research (A*STAR) through the A*STAR Advanced Manufacturing and Engineering Individual Research Grants (AME IRG) (A1983c0031). S.S. acknowledges support from Nanyang Technological University, Singapore, through a Distinguished University Professorship.en_US
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