Accurate and Anti‐Interference Control of Computer Vision‐Assisted Light‐Driven Liquid Crystal Elastomer Actuator DOI Creative Commons
Wei Zhang,

Zongxuan Wu,

Li Lin

et al.

Advanced Intelligent Systems, Journal Year: 2024, Volume and Issue: 7(3)

Published: Sept. 19, 2024

Photoresponsive liquid crystal elastomer (LCE) plays an important role in soft robotics and other high‐tech fields. The deformation of smart materials directly affects the behavior actuator, which needs to be accurately controlled. However, existing control methods for light‐driven LCE actuators often rely on empirical data or simplistic feedback systems, can imprecise susceptible interference. Developing accurate anti‐interference method photoresponsive remains a significant challenge. Herein, computer vision‐assisted bending actions actuator is proposed. system effectively mitigates instability angle caused by environmental factors such as light, wind, changes surrounding medium. Furthermore, “lift bridge” ants moving between two platforms oscillator with modulable angular interval frequency are demonstrated. proposed provides general strategy actuators, extended complex actions, multifunctions, multistimuli showing wide application potential robots.

Language: Английский

MXene Hybridized Polymer with Enhanced Electromagnetic Energy Harvest for Sensitized Microwave Actuation and Self-Powered Motion Sensing DOI Creative Commons

Yuze Wang,

Yu-Chang Wang, Tingting Liu

et al.

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 17(1)

Published: Nov. 18, 2024

Polymeric microwave actuators combining tissue-like softness with programmable microwave-responsive deformation hold great promise for mobile intelligent devices and bionic soft robots. However, their application is challenged by restricted electromagnetic sensitivity intricate sensing coupling. In this study, a sensitized polymeric actuator fabricated hybridizing liquid crystal polymer Ti

Language: Английский

Citations

36
Embedded Physical Intelligence in Liquid Crystalline Polymer Actuators and Robots DOI Creative Commons
Wei Feng, Qiguang He, Li Zhang

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Feb. 20, 2024

Abstract Responsive materials possess the inherent capacity to autonomously sense and respond various external stimuli, demonstrating physical intelligence. Among diverse array of responsive materials, liquid crystalline polymers (LCPs) stand out for their remarkable reversible stimuli‐responsive shape‐morphing properties potential creating soft robots. While numerous reviews have extensively detailed progress in developing LCP‐based actuators robots, there exists a need comprehensive summaries that elucidate underlying principles governing actuation how intelligence is embedded within these systems. This review provides overview recent advancements robots endowed with using LCPs. structured around stimulus conditions categorizes studies involving LCPs based on fundamental control stimulation logic approach. Specifically, three main categories are examined: systems changing those operating under constant equip learning capabilities. Furthermore, persisting challenges be addressed outlined discuss future avenues research this dynamic field.

Language: Английский

Citations

25
Engineered MXene Biomaterials for Regenerative Medicine DOI

Shengmin Zhang,

Liang Wang, Zhichao Feng

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: March 5, 2025

MXene-based materials have attracted significant interest due to their distinct physical and chemical properties, which are relevant fields such as energy storage, environmental science, biomedicine. MXene has shown potential in the area of tissue regenerative medicine. However, research on its applications regeneration is still early stages, with a notable absence comprehensive reviews. This review begins detailed description intrinsic properties MXene, followed by discussion various nanostructures that can form, spanning from 0 3 dimensions. The focus then shifts biomaterials engineering, particularly immunomodulation, wound healing, bone regeneration, nerve regeneration. MXene's physicochemical including conductivity, photothermal characteristics, antibacterial facilitate interactions different cell types, influencing biological processes. These highlight modulating cellular functions essential for Although developing, versatile structural attributes suggest role advancing

Language: Английский

Citations

5
Near‐Infrared Light‐Driven MXene/Liquid Crystal Elastomer Bimorph Membranes for Closed‐Loop Controlled Self‐Sensing Bionic Robots DOI Creative Commons

Youwei Yang,

Lingxian Meng, Juzhong Zhang

et al.

Advanced Science, Journal Year: 2023, Volume and Issue: 11(2)

Published: Nov. 20, 2023

Abstract More recently, soft actuators have evoked great interest in the next generation of robots. Despite significant progress, majority current suffer from lack real‐time sensory feedback and self‐control functions, prohibiting their effective sensing multitasking functions. Therefore, this work, a near‐infrared‐driven bimorph membrane, with self‐sensing loop control is produced by layer (LBL) assembling MXene/PDDA (PM) onto liquid crystal elastomer (LCE) film. The versatile integration strategy successfully prevents separation issues that arise moduli mismatch between actuating layers, ultimately resulting stable tightly bonded interface adhesion. As result, resultant membrane exhibited excellent mechanical toughness (tensile strengths equal to 16.3 MPa (||)), strong actuation properties (actuation stress 1.56 MPa), (gauge factor 4.72) capabilities. When applying near‐infrared (NIR) laser control, system can perform grasping, traction, crawling movements. Furthermore, wing closed‐loop controlled motion are demonstrated combination insect microcontroller unit (MCU) models. remote precision capabilities actuator pave way for complex precise task modulation future.

Language: Английский

Citations

24
Triply Interlocked [2]catenanes: Rational Synthesis, Reversible Conversion Studies and Unprecedented Application in Photothermal Responsive Elastomer DOI

Li‐Long Dang,

Jie Zheng, Juzhong Zhang

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(32)

Published: May 20, 2024

Triply interlocked [2]catenane complexes featuring two identical, mechanically units are extraordinarily rare chemical compounds, whose properties and applications remain open to detailed studies. Herein, we introduce the rational design of a new ligand precursor, L1, suitable for synthesis six triply [2]catenanes by coordination-driven self-assembly. The compounds can be reversibly converted into corresponding simple triangular prism metallacage addition H

Language: Английский

Citations

12
Biomimetic Stimulus Responsiveness: From Materials Design to Device Integration DOI
Shenglin Yang, Yixuan Yang, Xiaohu Xia

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(33)

Published: April 18, 2024

Abstract Intelligent actuators have attracted intensive attention due to their broad application scenarios, ranging from precision manufacturing and autonomous robotics adaptive medical devices. Therein, simplifying structure design streamlining fabrication processes for responsive materials is crucial achieving multifunctionality in intelligent actuators. Drawing inspiration nature, diverse stimuli‐responsive been developed, enabling the creation of a spectrum Herein, study aims provide systematic overview smart with different based on biomimetic strategies. The commences by describing typical stimulus‐response organisms subsequently categorizing nascent materials, summarizing respective mechanisms. Potential applications integrated into all‐in‐one systems are presented grippers, soft robots, sensors. Finally, ends an advancement summary together personal insight current challenges future directions.

Language: Английский

Citations

7
An Octopus‐Inspired Stimulus‐Responsive Structural Color Hydrogel for Uterus Cervical Canal Stent DOI

Lihao Zhang,

Lehao Ren,

Yufei Chen

et al.

Advanced Healthcare Materials, Journal Year: 2024, Volume and Issue: 13(22)

Published: June 13, 2024

Abstract Soft‐bodied aquatic organisms have exhibited remarkable capabilities in navigating and moving within liquid environments serving as a profound inspiration for the development of bionic robots with intricate movements. Traditional rigid components are being replaced by stimulus‐responsive soft materials such hydrogels shape memory polymers, leading to creation dynamically responsive robots. In this study, robot inspired an octopus adsorptive properties its tentacles, specifically tailored targeted stimulation pH sensing cervix, presented. This approach involves design soft, water‐based Janus adhesive hydrogel patch that adheres specific parts cervix responds changes through external stimuli. The incorporates inverse opal microstructures mimicking legs octopus, facilitate efficient stable locomotion, unidirectional transport biofluids, pH‐responsive behavior. miniature showcases controlled adhesion precise fluid highlighting potential stimulus response uterine cervical tract. breakthrough opens new avenues medical applications expanding field soft‐bodied robotics.

Language: Английский

Citations

6
Flexible Triboelectric Sensor based on Catalyst‐Diffusion Self‐Encapsulated Conductive Liquid‐Metal‐Silicone Ink for Somatosensory Soft Robotic System DOI
Shuai Xian, Yong Xu, Yixin Li

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 8, 2024

Abstract The combination of fluidity and metallic conductivity has attracted considerable attention to liquid metal (LM), but its development remains challenging due enormous surface tension. Here, vinyl‐terminated silicone oil platinum catalyst are added LM reduce tension, which develops a special type liquid‐metal‐silicone (LMS) ink with diffusion effect. Combined an embedded three‐dimentional (3D) printing method, the LMS is printed on support matrix, diffuses outward along print path cure around it, directly constructing self‐encapsulated conductive composites excellent flexible tactile sensors based triboelectric nanogenerator (TENG). sensor exhibits sensitivity (0.308 V kPa −1 ), high linearity (≈0.99), good durability (over 10 000 cycles). Furthermore, when used in wearable electronics, demonstrates performance accuracy ≈96% classifying different human postures using convolutional neural network. Finally, through 3D ink, somatosensory soft robotic gripper complex cavity structures designed manufactured one step, achieving all‐in‐one integration actuators. This study shows great application potential electronics systems.

Language: Английский

Citations

6
Achieving rapid actuation in liquid crystal elastomers DOI Creative Commons
Changyue Liu, Liuchao Jin,

Wei-Hsin Liao

et al.

National Science Open, Journal Year: 2024, Volume and Issue: unknown, P. 20240013 - 20240013

Published: June 1, 2024

Liquid crystal elastomer (LCE) is a soft actuating material capable of producing large and reversible actuation strain, versatile modes, high work density, which can be exploited for next-generation robots. However, the slow response speed low power density in LCE-based actuators remain challenge, limiting their practical applications. Researchers have been considering how to improve these performances. In this review, we discuss fundamentals LCEs emphasize fast strategies developed recent years. Firstly, introduce conventional preparation strategies. Then, describe mechanisms LCEs, discussing features limitations. third part, summarize several possible approaches as case studies enhance performance including reducing physical sizes, introducing active heating cooling mechanisms, utilizing mechanical instability, developing dielectric LCEs. Finally, future research opportunities challenges rapid

Language: Английский

Citations

4
Thermochromic Liquid-Crystalline Elastomers Featuring a Predesigned Hybrid Architecture DOI Creative Commons

Chung-Yu Kuo,

Yan-Ting Lin,

Tzu‐Ting Huang

et al.

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(15), P. 9080 - 9087

Published: July 22, 2024

Liquid-crystal elastomers have recently found diverse applications in mimicking biological functionalities, largely due to the unique interactions among liquid-crystal molecules. One intriguing application involves replicating transformation and color-changing abilities of chameleons using dual-layer elastic films. However, these films often exhibit defects presence a laminating layer. Addressing this issue, our study presents an approach where we design molecule alignment employ ultraviolet polymerization fabricate hybrid film actuator with inclined alignment, effectively overcoming defects. By integrating cholesteric liquid crystals vertically aligned nematic layers, demonstrates both shape-changing thermochromic capabilities. We confirm molecules through field emission scanning electron microscopy polarized optical microscopy, while structural color is examined UV–visible spectrometer. As temperature rises, prepared bending thermomechanical effect, coupled redshift during thermal stimulation. Notably, doped E7 show heightened variation undergo rigorous cycle testing for reversible actuation, leveraging unpolymerized nature E7. These meticulously designed hold promise soft robotics, artificial muscle development, devices.

Language: Английский

Citations

4