Recent Development of Jumping Motions Based on Soft Actuators

Li, Jingjing; Yu, Kaiqing; Wang, Ge; Gu, Wenhui; Xia, Zhigang; Zhou, Xiang; Liu, Zunfeng

doi:10.1002/adfm.202300156

Cited by 7 publications

(4 citation statements)

References 154 publications

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“…The biological regulation of energy primarily relies on adjusting the organism’s structural configuration and prestoring elastic energy to achieve a balance between elastic energy and kinetic energy necessary for jumping . Consequently, the design of effective energy storage and instantaneous energy transfer plays a crucial role in the development of jumping actuators . Different structural configurations, such as planar structures, ,, rolled structures, − closed-loop structures, ,,− and folding structures, have been explored.…”

Section: Introductionmentioning

confidence: 99%

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Bioinspired Jumping Soft Actuators of the Liquid Crystal Elastomer Enabled by Photo-Mechanical Coupling

Lei,

Wen,

Wang

et al. 2023

ACS Appl. Mater. Interfaces

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Jumping, a fundamental survival behavior observed in organisms, serves as a vital mechanism for adapting to the surrounding environment and overcoming significant obstacles within a given terrain. Here, we present a light-controlled soft jumping actuator inspired by asphondylia, which employs a closed-loop structure and utilizes a liquid crystal elastomer (LCE). Photo-mechanical coupling highlights the significant influence of the light source on the actuator's jumping behavior. Manipulating the light intensity, the relative position of stimulus and light lock, and the concentration of disperse red 1 (DR1) allows precise control over both the maximum take-off velocity and jump height. Furthermore, tailoring the size of the LCE actuator offers a means of regulating jumping behavior. Upon exposure to 460 nm LED irradiation, our actuator achieves remarkable performance, with a maximum jumping height of 10 body length (BL) and take-off velocity of 62 BL/s. These actuators accumulate and rapidly release energy, enabling the effective transportation of microcargos across substantial distances. Our research yields valuable insights into the realm of soft robotics, underscoring the pivotal importance of photo-mechanical coupling in the field of soft robotics, thereby serving as a catalyst for inspiring continued exploration of agile and capable systems by prestoring elastic energy.

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Section: Introductionmentioning

confidence: 99%

“…32 Consequently, the design of effective energy storage and instantaneous energy transfer plays a crucial role in the development of jumping actuators. 33 Different structural configurations, such as planar structures, 32,34,35 rolled structures, 36−38 closed-loop structures, 2,5,39−41 and folding structures, 26 have been explored.…”

Section: Introductionmentioning

confidence: 99%

Bioinspired Jumping Soft Actuators of the Liquid Crystal Elastomer Enabled by Photo-Mechanical Coupling

Lei,

Wen,

Wang

et al. 2023

ACS Appl. Mater. Interfaces

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“…Despite a number of reviews on soft actuators published in recent years, 18,35–43 we here attempt to summarize the significant recent progress and discuss future prospects of nanocellulose‐based actuators thanks to the rapid development of this field. In this mini‐review, the fundamental design concepts, and synthesis strategies of nanocellulose‐based soft actuators will be briefly described.…”

Section: Introductionmentioning

confidence: 99%

“…33 Another type of nanocellulosebased actuators (namely chiral nematic actuator) originated from the self-assembly of CNCs, which could produce linear contraction or elongation in the axial direction under external stimuli (Figure 1F). 34 Despite a number of reviews on soft actuators published in recent years, 18,[35][36][37][38][39][40][41][42][43] we here attempt to summarize the significant recent progress and discuss future prospects of nanocellulose-based actuators thanks to the rapid development of this field. In this mini-review, the fundamental design concepts, and synthesis strategies of nanocellulose-based soft actuators will be briefly described.…”

mentioning

confidence: 99%

Nanocellulose‐based soft actuators and their applications

Cui,

Lin,

et al. 2023

Journal of Polymer Science

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Nanocellulose has aroused growing attention in the design and fabrication of multifarious soft actuators thanks to its abundant source, appropriate mechanical properties, and sustainability. In this mini‐review, an up‐to‐date account of recent progresses in nanocellulose‐based actuators with homogeneous and heterogeneous structures is provided. The fundamental design concepts and synthesis strategies for nanocellulose‐based soft actuators with a wide array of micro‐architecture are described. Moreover, their actuation mechanisms, structure–function relationships, and emerging applications in the fields of soft robotics, biomedical science and bioelectronics are highlighted. Finally, a brief conclusion, the current challenges, and future perspectives in the development of nanocellulose‐based actuators is presented. This mini‐review provides new insights into the fundamental research and the technological application of advanced nanocellulose‐based soft actuators.

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Electro‐Driven, Predefined Carbon Nanotube‐Based Phase Change Composite as a Lifting‐Jack

Wang,

Han,

et al. 2023

Adv Funct Materials

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Shape change materials or actuators that are capable of shrinking, bending or rotation under external stimuli (especially, by electricity), have attracted tremendous research interest in past years. Controlled shape change with large output capacity under low excitation voltage remains a challenging task in this field. Here, an electro‐driven carbon nanotube sponge/paraffin wax bulk composite (CS@PW) that can perform various shape change functions such as, in particular, jacking and lifting heavy objects (up to 668.3 times of composite weight) under lower voltages (4–8 V) with fast response and high reversibility is presented. This unique and superior jacking performance is attributed to the predefined original CS shape, the deformability and resilience derived from 3D porous CS@PW, and efficient Joule heat transfer from conductive CS to the coaxially wrapped PW layer; the latter, by reversible phase change solidification/melting, can fix or release carbon nanotube network to enable controlled fixation/motion. Additional advantages include hydrophobicity, anti‐leakage, wide operating temperature, and diverse reversible shape change modes based on CS@PW and commercial polyethylene tapes, are also demonstrated. The designed electro‐driven nanocomposites, combining resilient carbon nanotube networks with low‐cost organic phase‐change material, have wide applications in areas such as robust artificial muscles, intelligent morphing, and energy management.

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Recent Development of Jumping Motions Based on Soft Actuators

Cited by 7 publications

References 154 publications

Bioinspired Jumping Soft Actuators of the Liquid Crystal Elastomer Enabled by Photo-Mechanical Coupling

Bioinspired Jumping Soft Actuators of the Liquid Crystal Elastomer Enabled by Photo-Mechanical Coupling

Nanocellulose‐based soft actuators and their applications

Electro‐Driven, Predefined Carbon Nanotube‐Based Phase Change Composite as a Lifting‐Jack

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