A New Class of Single‐Material, Non‐Reciprocal Microactuators
Abstract: A crucial component in designing soft actuating structures with controllable shape changes is programming internal, mismatching stresses. In this work, a new paradigm for achieving anisotropic dynamics between isotropic end‐states—yielding a non‐reciprocal shrinking/swelling response over a full actuation cycle—in a microscale actuator made of a single material, purely through microscale design is demonstrated. Anisotropic dynamics is achieved by incorporating micro‐sized pores into certain segments of the structures; by arranging porous and non‐porous segments (specifically, struts) into a 2D hexagonally‐shaped microscopic poly (N‐isopropyl acrylamide) hydrogel particle, the rate of isotropic shrinking/swelling in the structure is locally modulated, generating global anisotropic, non‐reciprocal, dynamics. A simple mathematical model is introduced that reveals the physics that underlies these dynamics. This design has the potential to be used as a foundational tool for inducing non‐reciprocal actuation cycles with a single material structure, and enables new possibilities in producing customized soft actuators and modular anisotropic metamaterials for a range of real‐world applications, such as artificial cilia.
- Standort
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Deutsche Nationalbibliothek Frankfurt am Main
- Umfang
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Online-Ressource
- Sprache
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Englisch
- Erschienen in
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A New Class of Single‐Material, Non‐Reciprocal Microactuators ; day:25 ; month:12 ; year:2022 ; extent:9
Macromolecular rapid communications ; (25.12.2022) (gesamt 9)
- Urheber
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Maslen, Charlie
Gholamipour‐Shirazi, Azarmidokht
Butler, Matthew D.
Kropacek, Jindrich
Rehor, Ivan
Montenegro‐Johnson, Thomas
- DOI
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10.1002/marc.202200842
- URN
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urn:nbn:de:101:1-2022122614112347680647
- Rechteinformation
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Letzte Aktualisierung
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15.08.2025, 07:36 MESZ
Datenpartner
Deutsche Nationalbibliothek. Bei Fragen zum Objekt wenden Sie sich bitte an den Datenpartner.
Beteiligte
- Maslen, Charlie
- Gholamipour‐Shirazi, Azarmidokht
- Butler, Matthew D.
- Kropacek, Jindrich
- Rehor, Ivan
- Montenegro‐Johnson, Thomas
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