Self-regulated reversal deformation and locomotion of structurally homogenous hydrogels subjected to constant light illumination
Abstract Environmentally adaptive hydrogels that are capable of reconfiguration in response to external stimuli have shown great potential toward bioinspired actuation and soft robotics. Previous efforts have focused mainly on either the sophisticated design of heterogeneously structured hydrogels o...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-02-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-46100-6 |
| _version_ | 1827326790746505216 |
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| author | Kexin Guo Xuehan Yang Chao Zhou Chuang Li |
| author_facet | Kexin Guo Xuehan Yang Chao Zhou Chuang Li |
| author_sort | Kexin Guo |
| collection | DOAJ |
| description | Abstract Environmentally adaptive hydrogels that are capable of reconfiguration in response to external stimuli have shown great potential toward bioinspired actuation and soft robotics. Previous efforts have focused mainly on either the sophisticated design of heterogeneously structured hydrogels or the complex manipulation of external stimuli, and achieving self-regulated reversal shape deformation in homogenous hydrogels under a constant stimulus has been challenging. Here, we report the molecular design of structurally homogenous hydrogels containing simultaneously two spiropyrans that exhibit self-regulated transient deformation reversal when subjected to constant illumination. The deformation reversal mechanism originates from the molecular sequential descending-ascending charge variation of two coexisting spiropyrans upon irradiation, resulting in a macroscale volumetric contraction-expansion of the hydrogels. Hydrogel film actuators were developed to display complex temporary bidirectional shape transformations and self-regulated reversal rolling under constant illumination. Our work represents an innovative strategy for programming complex shape transformations of homogeneous hydrogels using a single constant stimulus. |
| first_indexed | 2024-03-07T14:51:34Z |
| format | Article |
| id | doaj.art-776ebe9f0d944bd2a475058c839357e0 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-07T14:51:34Z |
| publishDate | 2024-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-776ebe9f0d944bd2a475058c839357e02024-03-05T19:41:49ZengNature PortfolioNature Communications2041-17232024-02-0115111210.1038/s41467-024-46100-6Self-regulated reversal deformation and locomotion of structurally homogenous hydrogels subjected to constant light illuminationKexin Guo0Xuehan Yang1Chao Zhou2Chuang Li3Key Laboratory of Precision and Intelligent Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of ChinaKey Laboratory of Precision and Intelligent Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of ChinaCAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of SciencesKey Laboratory of Precision and Intelligent Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of ChinaAbstract Environmentally adaptive hydrogels that are capable of reconfiguration in response to external stimuli have shown great potential toward bioinspired actuation and soft robotics. Previous efforts have focused mainly on either the sophisticated design of heterogeneously structured hydrogels or the complex manipulation of external stimuli, and achieving self-regulated reversal shape deformation in homogenous hydrogels under a constant stimulus has been challenging. Here, we report the molecular design of structurally homogenous hydrogels containing simultaneously two spiropyrans that exhibit self-regulated transient deformation reversal when subjected to constant illumination. The deformation reversal mechanism originates from the molecular sequential descending-ascending charge variation of two coexisting spiropyrans upon irradiation, resulting in a macroscale volumetric contraction-expansion of the hydrogels. Hydrogel film actuators were developed to display complex temporary bidirectional shape transformations and self-regulated reversal rolling under constant illumination. Our work represents an innovative strategy for programming complex shape transformations of homogeneous hydrogels using a single constant stimulus.https://doi.org/10.1038/s41467-024-46100-6 |
| spellingShingle | Kexin Guo Xuehan Yang Chao Zhou Chuang Li Self-regulated reversal deformation and locomotion of structurally homogenous hydrogels subjected to constant light illumination Nature Communications |
| title | Self-regulated reversal deformation and locomotion of structurally homogenous hydrogels subjected to constant light illumination |
| title_full | Self-regulated reversal deformation and locomotion of structurally homogenous hydrogels subjected to constant light illumination |
| title_fullStr | Self-regulated reversal deformation and locomotion of structurally homogenous hydrogels subjected to constant light illumination |
| title_full_unstemmed | Self-regulated reversal deformation and locomotion of structurally homogenous hydrogels subjected to constant light illumination |
| title_short | Self-regulated reversal deformation and locomotion of structurally homogenous hydrogels subjected to constant light illumination |
| title_sort | self regulated reversal deformation and locomotion of structurally homogenous hydrogels subjected to constant light illumination |
| url | https://doi.org/10.1038/s41467-024-46100-6 |
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