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Cactus-inspired design principles for soft robotics based on 3D printed hydrogel-elastomer systems

Anil Bastola, Nadia Rodriguez, Marc Behl, Patricia Soffiatti, Nick P. Rowe, Andreas Lendlein

Materials and Design, Volume: 202, Start page: 109515

Swansea University Author: Anil Bastola

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DOI (Published version): 10.1016/j.matdes.2021.109515

Abstract

Plants have evolved many capabilities to anchor, position their stems and leaves favourably, and adapt themselves to different environmental conditions by virtue of growing. Selenicereus setaceus is a cactus and is an impressive example of a climbing plant found mostly in the Atlantic forest formati...

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Published in: Materials and Design
ISSN: 0264-1275
Published: Elsevier BV 2021
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URI: https://cronfa.swan.ac.uk/Record/cronfa65754
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spelling v2 65754 2024-03-05 Cactus-inspired design principles for soft robotics based on 3D printed hydrogel-elastomer systems 6775d40c935b36b92058eb10d6454f1a Anil Bastola Anil Bastola true false 2024-03-05 MECH Plants have evolved many capabilities to anchor, position their stems and leaves favourably, and adapt themselves to different environmental conditions by virtue of growing. Selenicereus setaceus is a cactus and is an impressive example of a climbing plant found mostly in the Atlantic forest formations of southern Brazil. This cactus displays striking changes in stem geometry along different stages of growth: older parts are circular while the younger parts are star-like in shape. Such a transformation in shape optimizes its flexural rigidity and allows the cactus to search in three-dimensionally complex environments. Its organisation offers novel schemes for the design of plant-inspired soft robotic systems. In this paper, we have created multi-material systems for soft robotics that display controlled movements as well as mimicking the cactus stem geometries from star-like to circular. The unique star-shaped geometry is 3D printed using a soft elastomer and hydrogel is used as an actuating component. Through anisotropic swelling, the hydrogel-elastomer system adjusts its configuration and shows a controlled movement. Furthermore, the isotropic swelling of the hydrogel of the artificial cactus multi-material system result in the change in shape from star-like to circular as the cactus does naturally in the tropical forest. Journal Article Materials and Design 202 109515 Elsevier BV 0264-1275 Cactus-inspired; Hydrogel-elastomer; Multi-material; 3D printing; Soft-robotics 1 4 2021 2021-04-01 10.1016/j.matdes.2021.109515 COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University Another institution paid the OA fee Mrs. Yvonne Pieper is acknowledged for cross-sectional images of the artificial cactus. This work was financially supported by the Helmholtz Association through programme-oriented funding and received funding from the European Union's Horizon 2020 research and innovation program under Grant Agreement No. 824074 (GrowBot). 2024-04-27T14:40:15.8727107 2024-03-05T21:57:30.2439202 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering Anil Bastola 1 Nadia Rodriguez 2 Marc Behl 3 Patricia Soffiatti 4 Nick P. Rowe 5 Andreas Lendlein 6 65754__30168__16378bbba9364e2392e47edb0c5caed1.pdf 65754.VoR.pdf 2024-04-27T14:39:02.5968913 Output 4052800 application/pdf Version of Record true © 2021 Helmholtz-Zentrum Geesthacht. This is an open access article under the CC BY license. true eng http://creativecommons.org/licenses/by/4.0/
title Cactus-inspired design principles for soft robotics based on 3D printed hydrogel-elastomer systems
spellingShingle Cactus-inspired design principles for soft robotics based on 3D printed hydrogel-elastomer systems
Anil Bastola
title_short Cactus-inspired design principles for soft robotics based on 3D printed hydrogel-elastomer systems
title_full Cactus-inspired design principles for soft robotics based on 3D printed hydrogel-elastomer systems
title_fullStr Cactus-inspired design principles for soft robotics based on 3D printed hydrogel-elastomer systems
title_full_unstemmed Cactus-inspired design principles for soft robotics based on 3D printed hydrogel-elastomer systems
title_sort Cactus-inspired design principles for soft robotics based on 3D printed hydrogel-elastomer systems
author_id_str_mv 6775d40c935b36b92058eb10d6454f1a
author_id_fullname_str_mv 6775d40c935b36b92058eb10d6454f1a_***_Anil Bastola
author Anil Bastola
author2 Anil Bastola
Nadia Rodriguez
Marc Behl
Patricia Soffiatti
Nick P. Rowe
Andreas Lendlein
format Journal article
container_title Materials and Design
container_volume 202
container_start_page 109515
publishDate 2021
institution Swansea University
issn 0264-1275
doi_str_mv 10.1016/j.matdes.2021.109515
publisher Elsevier BV
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Mechanical Engineering
document_store_str 1
active_str 0
description Plants have evolved many capabilities to anchor, position their stems and leaves favourably, and adapt themselves to different environmental conditions by virtue of growing. Selenicereus setaceus is a cactus and is an impressive example of a climbing plant found mostly in the Atlantic forest formations of southern Brazil. This cactus displays striking changes in stem geometry along different stages of growth: older parts are circular while the younger parts are star-like in shape. Such a transformation in shape optimizes its flexural rigidity and allows the cactus to search in three-dimensionally complex environments. Its organisation offers novel schemes for the design of plant-inspired soft robotic systems. In this paper, we have created multi-material systems for soft robotics that display controlled movements as well as mimicking the cactus stem geometries from star-like to circular. The unique star-shaped geometry is 3D printed using a soft elastomer and hydrogel is used as an actuating component. Through anisotropic swelling, the hydrogel-elastomer system adjusts its configuration and shows a controlled movement. Furthermore, the isotropic swelling of the hydrogel of the artificial cactus multi-material system result in the change in shape from star-like to circular as the cactus does naturally in the tropical forest.
published_date 2021-04-01T14:40:14Z
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