Phototunable Rayleigh 3D Soft Self-Oscillator Enabling Versatile Biomimetic Tubular Peristaltic Pumping
© 2025 Wiley‐VCH GmbH.
| Publié dans: | Advanced materials (Deerfield Beach, Fla.). - 1998. - (2025) vom: 09. Apr., Seite e2502434 |
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| Auteur principal: | |
| Autres auteurs: | |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2025
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| Accès à la collection: | Advanced materials (Deerfield Beach, Fla.) |
| Sujets: | Journal Article liquid crystal elastomers phototunable self‐oscillation tubular instabilities tubular peristaltic pumping tubular soft actuators |
| Résumé: | © 2025 Wiley‐VCH GmbH. Living tubular organs can spatiotemporally and cyclically deform their muscular walls to implement adaptable and sustainable peristaltic pumping applicable to broad matter, achieved via asymmetric and non-equilibrium self-oscillating deformations of muscular walls. However, man-made tubular soft actuators have been limited to pumping a few simple matters, because of their reciprocal and monotonic wall motions that cannot break time-reversal symmetry and system equilibrium to gain adaptable and sustainable pumping. Here, a phototunable Rayleigh 3D soft self-oscillator (PR3DSSO) capable of multimodal, nonreciprocal, self-sustainable wall deformations is presented. PR3DSSO's design leverages two direction-and-dimension-phototunable tubular instabilities: snapping and postbuckling. The post-buckling instability can generate local-wall origami which cannot only fold local walls into multimodal shape-mode waves, but also break wall-motion symmetry; snapping instabilities help break equilibrium in wall motions to initiate autonomous wall motions. These phototunable-instabilities-driven wall deformations unprecedentedly create Rayleigh-like 3D wall motions, which allow for versatile biomimetic tubular peristaltic pumping adapt to broad matter. Our PR3DSSO would spur creative life-like active-material designs and novel pumping functions |
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| Description: | Date Revised 09.04.2025 published: Print-Electronic Citation Status Publisher |
| ISSN: | 1521-4095 |
| DOI: | 10.1002/adma.202502434 |