Bio-inspired paper plant robots: artificial heliotropism and nyctinasty through transpiration

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buir.advisorBaytekin, Bilge
dc.contributor.authorCezan, Süleyman Doruk
dc.date.accessioned2019-08-16T08:49:18Z
dc.date.available2019-08-16T08:49:18Z
dc.date.copyright2019-08
dc.date.issued2019-08
dc.date.submitted2019-08-06
dc.descriptionCataloged from PDF version of article.en_US
dc.descriptionThesis (M.S.): Bilkent University, Department of Chemistry, İhsan Doğramacı Bilkent University, 2019.en_US
dc.descriptionIncludes bibliographical references. (leaves 62-66).en_US
dc.description.abstractSelf-regulation is a fundamental feature of all living systems, which maintains their metabolic activities through biochemical feedback loops. Those feedback loops respond to environmental stimuli, and therefore the organism displays ‘embodied intelligence’. Despite the complexity of these feedback loops, using them as a source of inspiration can open new endeavors in soft robotics to design self-regulating systems, and ultimately to fuse embodied intelligence into soft robots. Here we show some simple systems, in which plant-inspired soft robots display heliotropism (tracking the sun) and nyctinasty (opening and closing its leaves) through material feedback and artificial transpiration for self-regulation – all being examples of embodiment of intelligence. First, materials feedback is adapted to a hard robotic system behaving similar to a soft robot, displaying heliotropism and nyctinasty by using the phase transition of shape memory alloy springs. Then, artificial transpiration is integrated into a soft robotic system, using swelling/deswelling of hydrogels on the paper body by using origami/kirigami strategies. Both material and transpiration feedback involve stabilization with cycles of traction and contraction (of shape memory alloys, or hydrogels) events that keep the robots at a metastable state, maximizing of solar flux on the leaves (decorated with solar panels) for higher efficiencies of harvesting light. Moreover, the feedback mechanism of the hydrogel-based system can be advanced by using hybrid hydrogels (e.g. an addition of thermoresponsive hydrogels), or doping the gel with light-absorbing chemicals, or altering the geometrical design of the systems. Finally, achieving self-regulation in soft robots through material/transpiration feedback is important to attain the embodiment of intelligence in them, and this may have implications extending from energy efficiency to adaptability in autonomous soft robots.en_US
dc.description.provenanceSubmitted by Betül Özen (ozen@bilkent.edu.tr) on 2019-08-16T08:49:18Z No. of bitstreams: 1 DORUKCEZAN_MSC_TEZ.pdf: 13171017 bytes, checksum: bce99b3db57485aad62dc7f0cfae480f (MD5)en
dc.description.provenanceMade available in DSpace on 2019-08-16T08:49:18Z (GMT). No. of bitstreams: 1 DORUKCEZAN_MSC_TEZ.pdf: 13171017 bytes, checksum: bce99b3db57485aad62dc7f0cfae480f (MD5) Previous issue date: 2019-08en
dc.description.statementofresponsibilityby Süleyman Doruk Cezanen_US
dc.format.extentxxii, 66 leaves : illustrations (some color) ; 30 cm.en_US
dc.identifier.itemidB152972
dc.identifier.urihttp://hdl.handle.net/11693/52340
dc.language.isoEnglishen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectPlant robotsen_US
dc.subjectHeliotropismen_US
dc.subjectNyctinastyen_US
dc.subjectMaterial feedbacken_US
dc.titleBio-inspired paper plant robots: artificial heliotropism and nyctinasty through transpirationen_US
dc.title.alternativeDoğadan esinlenen kâğıt bitki robotlar: transpirasyon ile yapay heliotropizm ve niktinastien_US
dc.typeThesisen_US
thesis.degree.disciplineChemistry
thesis.degree.grantorBilkent University
thesis.degree.levelMaster's
thesis.degree.nameMS (Master of Science)

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