Drosera-Inspired Dual-Actuating Double-Layer Hydrogel Actuator
© 2021 Wiley-VCH GmbH..
Drosera is a small insectivorous plant whose antennae can fold up, encircle, and prey. The rapid movement of the antennae is achieved by the synergistic effect of a double-layer structure with the antennae contracts on the front and expands on the back. In this work, a drosera-inspired dual-actuating double-layer hydrogel actuator is proposed, in which the temperature-responsive poly(N, N-diethyl acrylamide) (PDEAAm) layer acts as the main actuation layer and a moisture-responsive poly(acrylamide) (PAAm) layer acts as the auxiliary actuation layer. In a water environment with low temperature, both the PAAm and PDEAAm layers absorb water and expand with a swelling property. When the temperature exceeds the lower critical solution temperature of PDEAAm, the PDEAAm layer undergoes a hydrophilic-hydrophobic transition and shrinks rapidly. Therefore, the synergistic effect of the double-layer hydrogel enables the double-layer hydrogel to achieve a large bending angle at high temperature. In addition, when designing and fabricating shape-patterned double-layer hydrogels, complex shape changes can be achieved. Due to the physical and chemical properties, the actuator can be used to grab, transport, and release objects. This drosera-inspired double-layer hydrogel actuator has high practical value, which may provide new insights for the design and manufacture of artificial intelligence materials.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:42 |
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| Enthalten in: |
Macromolecular rapid communications - 42(2021), 21 vom: 11. Nov., Seite e2100416 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Kong, Xin [VerfasserIn] |
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| Links: |
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| Themen: |
Actuators |
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| Anmerkungen: |
Date Completed 05.11.2021 Date Revised 05.11.2021 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1002/marc.202100416 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM329622781 |
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| 520 | |a © 2021 Wiley-VCH GmbH. | ||
| 520 | |a Drosera is a small insectivorous plant whose antennae can fold up, encircle, and prey. The rapid movement of the antennae is achieved by the synergistic effect of a double-layer structure with the antennae contracts on the front and expands on the back. In this work, a drosera-inspired dual-actuating double-layer hydrogel actuator is proposed, in which the temperature-responsive poly(N, N-diethyl acrylamide) (PDEAAm) layer acts as the main actuation layer and a moisture-responsive poly(acrylamide) (PAAm) layer acts as the auxiliary actuation layer. In a water environment with low temperature, both the PAAm and PDEAAm layers absorb water and expand with a swelling property. When the temperature exceeds the lower critical solution temperature of PDEAAm, the PDEAAm layer undergoes a hydrophilic-hydrophobic transition and shrinks rapidly. Therefore, the synergistic effect of the double-layer hydrogel enables the double-layer hydrogel to achieve a large bending angle at high temperature. In addition, when designing and fabricating shape-patterned double-layer hydrogels, complex shape changes can be achieved. Due to the physical and chemical properties, the actuator can be used to grab, transport, and release objects. This drosera-inspired double-layer hydrogel actuator has high practical value, which may provide new insights for the design and manufacture of artificial intelligence materials | ||
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| 700 | 1 | |a Xu, Wenlong |e verfasserin |4 aut | |
| 700 | 1 | |a Liang, Haiqing |e verfasserin |4 aut | |
| 700 | 1 | |a Xue, Zhongxin |e verfasserin |4 aut | |
| 700 | 1 | |a Niu, Yuzhong |e verfasserin |4 aut | |
| 700 | 1 | |a Pang, Maofu |e verfasserin |4 aut | |
| 700 | 1 | |a Ren, Chunguang |e verfasserin |4 aut | |
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