Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 7, Issue 42, Pages 23423-23430Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b08248
Keywords
hybrid hydrogel; response hydrogel combination; actuator; graphene oxide; bioinspired material
Funding
- NSFC [21427805, 51203052]
- National Basic Research Program of China (973 Program) [2012CB821504]
- Fundamental Research Funds for the Central Universities [2015ZM051, 2015ZP005]
- Excellent Doctoral Dissertation Project of Guangdong Province of China [SYBZZXM201312]
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Rapid response and strong mechanical properties are desired for smart materials used in soft actuators. A bioinspired hybrid hydrogel actuator was designed and prepared by series combination of three trunks of tough polymer clay hydrogels to accomplish the comprehensive actuation of extension-grasp-retraction like a fishing rod. The hydrogels with thermo-creep and thermo-shrinking features were successively irradiated by near-infrared (NIR) to execute extension and retraction, respectively. The GO in the hydrogels absorbed the NIR energy and transformed it into thermo-energy rapidly and effectively. The hydrogel with adhesion or magnetic force was adopted as the hook of the hybrid hydrogel actuator for grasping object. The hook of the hybrid hydrogel actuator was replaceable according to applications, even with functional materials other than hydrogels. This study provides an innovative concept to explore new soft actuators through combining response hydrogels and programming the same stimulus.
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