A graphene-based photo-electro-thermal metamaterial for soft fixtures with superior grasping performance
Summary: Soft actuators are valued for their adaptability and diverse applications but often face challenges like slow response, high activation energy, and high energy consumption. To address these issues, we developed a graphene-assembled film (GAF) via the redox method, characterized by high ther...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | iScience |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004225000021 |
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| _version_ | 1832595772530491392 |
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| author | Bowen Yang Xuanchen Dong Wenhao Lv Wenzhuo Liu Mengying Lu Zhe Liu Tonghui Lu Xianglin Li Song Lv |
| author_facet | Bowen Yang Xuanchen Dong Wenhao Lv Wenzhuo Liu Mengying Lu Zhe Liu Tonghui Lu Xianglin Li Song Lv |
| author_sort | Bowen Yang |
| collection | DOAJ |
| description | Summary: Soft actuators are valued for their adaptability and diverse applications but often face challenges like slow response, high activation energy, and high energy consumption. To address these issues, we developed a graphene-assembled film (GAF) via the redox method, characterized by high thermal conductivity, conductivity, and stiffness. Using GAF as a photothermal and electrothermal driver, we engineered a sandwich-structured metamaterial (SSM) by combining two polymers with vastly different thermal expansion coefficients. The SSM achieved rapid response (<5 s), low actuation energy (≤0.22 W cm⁻2 or ≤3.55 V), and large bending curvature (>0.18 mm⁻1), surpassing conventional designs in response speed (226.2% faster) and curvature (249.1% higher). This metamaterial enables soft fixtures with superior gripping capabilities and low energy consumption, handling up to eight times the object mass of traditional designs. This work highlights advances in multi-stimulus metamaterials, offering significant implications for the development of high-performance soft actuators. |
| format | Article |
| id | doaj-art-899d50efc3cb4a669c74ba4ff78f1d42 |
| institution | Kabale University |
| issn | 2589-0042 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj-art-899d50efc3cb4a669c74ba4ff78f1d422025-01-18T05:05:06ZengElsevieriScience2589-00422025-02-01282111743A graphene-based photo-electro-thermal metamaterial for soft fixtures with superior grasping performanceBowen Yang0Xuanchen Dong1Wenhao Lv2Wenzhuo Liu3Mengying Lu4Zhe Liu5Tonghui Lu6Xianglin Li7Song Lv8School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063 ChinaSchool of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063 ChinaSchool of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430063 ChinaSchool of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063 ChinaSchool of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063 ChinaSchool of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063 ChinaSchool of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063 ChinaSchool of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063 ChinaSchool of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063 China; School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430063 China; Corresponding authorSummary: Soft actuators are valued for their adaptability and diverse applications but often face challenges like slow response, high activation energy, and high energy consumption. To address these issues, we developed a graphene-assembled film (GAF) via the redox method, characterized by high thermal conductivity, conductivity, and stiffness. Using GAF as a photothermal and electrothermal driver, we engineered a sandwich-structured metamaterial (SSM) by combining two polymers with vastly different thermal expansion coefficients. The SSM achieved rapid response (<5 s), low actuation energy (≤0.22 W cm⁻2 or ≤3.55 V), and large bending curvature (>0.18 mm⁻1), surpassing conventional designs in response speed (226.2% faster) and curvature (249.1% higher). This metamaterial enables soft fixtures with superior gripping capabilities and low energy consumption, handling up to eight times the object mass of traditional designs. This work highlights advances in multi-stimulus metamaterials, offering significant implications for the development of high-performance soft actuators.http://www.sciencedirect.com/science/article/pii/S2589004225000021Natural sciencesPhysicsApplied sciences |
| spellingShingle | Bowen Yang Xuanchen Dong Wenhao Lv Wenzhuo Liu Mengying Lu Zhe Liu Tonghui Lu Xianglin Li Song Lv A graphene-based photo-electro-thermal metamaterial for soft fixtures with superior grasping performance iScience Natural sciences Physics Applied sciences |
| title | A graphene-based photo-electro-thermal metamaterial for soft fixtures with superior grasping performance |
| title_full | A graphene-based photo-electro-thermal metamaterial for soft fixtures with superior grasping performance |
| title_fullStr | A graphene-based photo-electro-thermal metamaterial for soft fixtures with superior grasping performance |
| title_full_unstemmed | A graphene-based photo-electro-thermal metamaterial for soft fixtures with superior grasping performance |
| title_short | A graphene-based photo-electro-thermal metamaterial for soft fixtures with superior grasping performance |
| title_sort | graphene based photo electro thermal metamaterial for soft fixtures with superior grasping performance |
| topic | Natural sciences Physics Applied sciences |
| url | http://www.sciencedirect.com/science/article/pii/S2589004225000021 |
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