Artificial heliotropism and nyctinasty based on optomechanical feedback and no electronics

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dc.citation.epage98en_US
dc.citation.issueNumber1en_US
dc.citation.spage93en_US
dc.citation.volumeNumber5en_US
dc.contributor.authorBaytekin, B.en_US
dc.contributor.authorCezan, S. D.en_US
dc.contributor.authorBaytekin, H. T.en_US
dc.contributor.authorGrzybowski, B. A.en_US
dc.date.accessioned2019-02-21T16:03:46Zen_US
dc.date.available2019-02-21T16:03:46Zen_US
dc.date.issued2018en_US
dc.departmentDepartment of Chemistryen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractAlthough plants are typically not considered an inspiration for designing motile robots, they do perform a variety of intricate motion patterns, including diurnal cycles of sun tracking (heliotropism) and leaf opening (nyctinasty). In real plants, these motions are controlled by complex, feedback-based biological mechanisms that, to date, have been mimicked only in computer-controlled artificial systems. This work demonstrates both heliotropism and nyctinasty in a system in which few simple, but strategically positioned thermo-responsive springs and lenses form a feedback loop controlling these motions and substantiating a behavioral analogy to "plants." In particular, this feedback allows the "artificial plant" to reach and stabilize at a metastable position in which the solar flux on the "plants" and the solar power "leaves" are maximized. Unlike many soft robotic systems, our "plants" are completely autonomous, in that, they do not require any external controls or power sources. Bioinspired designs such as this could be of interest for soft robotic systems in which materials alone - rather than power-consuming electronic circuitry - control the motions.en_US
dc.description.provenanceMade available in DSpace on 2019-02-21T16:03:46Z (GMT). No. of bitstreams: 1 Bilkent-research-paper.pdf: 222869 bytes, checksum: 842af2b9bd649e7f548593affdbafbb3 (MD5) Previous issue date: 2018en_US
dc.description.sponsorshipInitial stages of this work (on designs still incorporating electronic components) was supported by the Non-Equilibrium Energy Research Center (NERC) at Northwestern University, which is an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under award DE-SC0000989. B.B. gratefully acknowledges the support from BAGEP 2016 (Science Academy Young Scientists Program) award and B.A.G. acknowledges the support from the Institute for Basic Science, Korea, Project Code IBS-R020-D1. B.B., S.D.C., and H.T.B. designed and conducted the experiments, B.A.G. conceived the general idea. B.B., H.T.B., and B.A.G. wrote the article. We thank Mr. Murat Dere and Prof. Mehmet Bayındır (UNAM) for their help in thermal imaging.en_US
dc.identifier.doi10.1089/soro.2017.0020en_US
dc.identifier.issn2169-5172 (print)en_US
dc.identifier.issn2169-5180 (online)en_US
dc.identifier.urihttp://hdl.handle.net/11693/50133en_US
dc.language.isoEnglishen_US
dc.publisherMary Ann Lieberten_US
dc.relation.isversionofhttps://doi.org/10.1089/soro.2017.0020en_US
dc.relation.projectU.S. Department of Energy, DOE - Natural Environment Research Council, NERC - Institute for Basic Science, IBS: IBS-R020-D1 - Basic Energy Sciences, BES: DE-SC0000989 - Office of Science, SC - Universidad Nacional Autónoma de México, UNAM - Bilim Akademisi - Northwestern University, NUen_US
dc.source.titleSoft Roboticsen_US
dc.subjectArtificial heliotropismen_US
dc.subjectArtificial nyctinastyen_US
dc.subjectMaterial feedbacken_US
dc.subjectPlant robotsen_US
dc.titleArtificial heliotropism and nyctinasty based on optomechanical feedback and no electronicsen_US
dc.typeArticleen_US

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