Shape morphing smart 3D actuator materials for micro soft robot

Kim, Hyun; Ahn, Suk‐kyun; Mackie, David M.; Kwon, Jinhyeong; Kim, Shi Hyeong; Choi, Changsoon; Moon, Young Hoon; Lee, Habeom; Ko, Seung Hwan

doi:10.1016/j.mattod.2020.06.005

Cited by 158 publications

(72 citation statements)

References 163 publications

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“…A variety of futuristic applications of stimuli-responsive soft robots have been proposed in the forms of flexible electronics, sensors, biomedical tools, optics, and actuators [1][2][3][4][5][6][7][24][25][26]. Furthermore, hybrid stimuli-responsive soft robots combined with multi-functional nanoparticles, low-dimensional materials, or liquid crystals have also displayed promising applications in flexible electronics, mechanical sensors, smart actuators, and biomedical systems [18][19][20][21][23][24][25][26][27][28]. This section particularly describes advanced applications of hybrid stimuli-responsive soft robots focusing on extensively multi-responsive and multi-functional actuators (e.g., manipulators, grippers, and walkers) and sensors (e.g., wearable electronics, strain sensors, biosensors, and gas sensors).…”

Section: Applications Of Hybrid Soft Robotsmentioning

confidence: 99%

Advances in Stimuli-Responsive Soft Robots with Integrated Hybrid Materials

Son

Yoon

2020

Actuators

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Hybrid stimuli-responsive soft robots have been extensively developed by incorporating multi-functional materials, such as carbon-based nanoparticles, nanowires, low-dimensional materials, and liquid crystals. In addition to the general functions of conventional soft robots, hybrid stimuli-responsive soft robots have displayed significantly advanced multi-mechanical, electrical, or/and optical properties accompanied with smart shape transformation in response to external stimuli, such as heat, light, and even biomaterials. This review surveys the current enhanced scientific methods to synthesize the integration of multi-functional materials within stimuli-responsive soft robots. Furthermore, this review focuses on the applications of hybrid stimuli-responsive soft robots in the forms of actuators and sensors that display multi-responsive and highly sensitive properties. Finally, it highlights the current challenges of stimuli-responsive soft robots and suggests perspectives on future directions for achieving intelligent hybrid stimuli-responsive soft robots applicable in real environments.

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Section: Applications Of Hybrid Soft Robotsmentioning

confidence: 99%

Advances in Stimuli-Responsive Soft Robots with Integrated Hybrid Materials

Son

Yoon

2020

Actuators

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“…Some effective approaches are to program hierarchical structures such as bilayer structure with different functionalities individually, 40 gradient structure with various crosslinking densities 38 and Janus patterning structure to undergo bending, waving, and chiral twisting. 22,41–43 Moreover, through the combination of multiple LCE materials with different responsive wavelengths and molecular orientations in an actuator, the specific domains of the composite actuators can be selectively stimulated, thus achieving multimodal shape changing. 29,44 However, these recent progresses with increasingly complex structures and chemistries remain outweighed by great trade-offs in difficulty of fabrication and large-scale feasibility.…”

Section: Introductionmentioning

confidence: 99%

Light-modulated liquid crystal elastomer actuator with multimodal shape morphing and multifunction

Zhao

Fan

et al. 2022

J. Mater. Chem. C

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“…The development of modern robotics/sensors [1], micro/nanomechanics [2], tissue engineering [3], and drug delivery [4] introduces an urgent demand for smart micro-or nanostructured machines or robots [5]. However, conventional 3D-printed constructs have fallen short of expectations, mainly due to their bulky volume and inability to mimic the dynamic human tissues.…”

Section: Introductionmentioning

confidence: 99%

Four-Dimensional Stimuli-Responsive Hydrogels Micro-Structured via Femtosecond Laser Additive Manufacturing

Tao

Deng

et al. 2021

Micromachines

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Rapid fabricating and harnessing stimuli-responsive behaviors of microscale bio-compatible hydrogels are of great interest to the emerging micro-mechanics, drug delivery, artificial scaffolds, nano-robotics, and lab chips. Herein, we demonstrate a novel femtosecond laser additive manufacturing process with smart materials for soft interactive hydrogel micro-machines. Bio-compatible hyaluronic acid methacryloyl was polymerized with hydrophilic diacrylate into an absorbent hydrogel matrix under a tight topological control through a 532 nm green femtosecond laser beam. The proposed hetero-scanning strategy modifies the hierarchical polymeric degrees inside the hydrogel matrix, leading to a controllable surface tension mismatch. Strikingly, these programmable stimuli-responsive matrices mechanized hydrogels into robotic applications at the micro/nanoscale (<300 × 300 × 100 μm3). Reverse high-freedom shape mutations of diversified microstructures were created from simple initial shapes and identified without evident fatigue. We further confirmed the biocompatibility, cell adhesion, and tunable mechanics of the as-prepared hydrogels. Benefiting from the high-efficiency two-photon polymerization (TPP), nanometer feature size (<200 nm), and flexible digitalized modeling technique, many more micro/nanoscale hydrogel robots or machines have become obtainable in respect of future interdisciplinary applications.

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Shape morphing smart 3D actuator materials for micro soft robot

Cited by 158 publications

References 163 publications

Advances in Stimuli-Responsive Soft Robots with Integrated Hybrid Materials

Advances in Stimuli-Responsive Soft Robots with Integrated Hybrid Materials

Light-modulated liquid crystal elastomer actuator with multimodal shape morphing and multifunction

Four-Dimensional Stimuli-Responsive Hydrogels Micro-Structured via Femtosecond Laser Additive Manufacturing

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