Reconfiguration, Camouflage, and Color‐Shifting for Bioinspired Adaptive Hydrogel‐Based Millirobots DOI
Xuemin Du, Huanqing Cui, Tiantian Xu

и другие.

Advanced Functional Materials, Год журнала: 2020, Номер 30(10)

Опубликована: Янв. 7, 2020

Abstract Nature provides much inspiration for developing soft millirobots. However, compared with smart and adaptations of lives in nature, these robotic systems still suffer from insufficiency intelligence. Here, a new untethered millirobot magnetic actuation the head function tail is presented via implementing control, actuation, sensing directly materials, thereby endowing robots multimodal locomotion environment‐adaptive functions. Due to asymmetric structure, not only shows robust locomotion, including controllable transformable crawling, swinging rolling, but also achieves an excellent capability helical propulsion water. Moreover, robot possesses outstanding obstacle‐crossing abilities, helically propelling over obstacles (>2 body length), crawling within 2 mm height tunnel through 450 µm width channel. Furthermore, can even squeeze its crawl tube easily near‐infrared irradiation, which triggers osmotic shrinking body. Notably, possess extraordinary functions, example, leptocephali‐like optical camouflage water, octopus‐like delivery variable appearance visible color–shifting interaction changing environment. These would be benefit various fields seamless integration bioinspired design materials.

Язык: Английский

Soft Materials by Design: Unconventional Polymer Networks Give Extreme Properties DOI

Xuanhe Zhao,

Xiaoyu Chen,

Hyunwoo Yuk

и другие.

Chemical Reviews, Год журнала: 2021, Номер 121(8), С. 4309 - 4372

Опубликована: Апрель 12, 2021

Hydrogels are polymer networks infiltrated with water. Many biological hydrogels in animal bodies such as muscles, heart valves, cartilages, and tendons possess extreme mechanical properties including being extremely tough, strong, resilient, adhesive, fatigue-resistant. These also critical for hydrogels' diverse applications ranging from drug delivery, tissue engineering, medical implants, wound dressings, contact lenses to sensors, actuators, electronic devices, optical batteries, water harvesters, soft robots. Whereas numerous have been developed over the last few decades, a set of general principles that can rationally guide design using different materials fabrication methods various remain central need field materials. This review is aimed at synergistically reporting: (i) achieve physical properties, (ii) implementation strategies unconventional networks, (iii) future directions orthogonal multiple combined mechanical, physical, chemical, properties. Because these based on generic they applicable other elastomers organogels. Overall, will not only provide comprehensive systematic guidelines rational materials, but provoke interdisciplinary discussions fundamental question: why does nature select constitute major parts bodies?

Язык: Английский

Процитировано

762

A Review of 3D Printing Technologies for Soft Polymer Materials DOI
Luyu Zhou, Jianzhong Fu, Yong He

и другие.

Advanced Functional Materials, Год журнала: 2020, Номер 30(28)

Опубликована: Апрель 29, 2020

Abstract Soft polymer materials, which are similar to human tissues, have played critical roles in modern interdisciplinary research. Compared with conventional methods, 3D printing allows rapid prototyping and mass customization is ideal for processing soft materials. However, of materials still the early stages development facing many challenges including limited printable low resolution speed, poor functionalities. The present review aims summarize ideas address these challenges. It focuses on three points: 1) how develop make unprintable printable, 2) choose suitable methods improve resolution, 3) directly construct functional structures/systems printing. After a brief introduction this topic, mainstream technologies reviewed, an emphasis improving choosing techniques, developing multiple Moreover, state‐of‐the‐art advancements multimaterial summarized. Furthermore, revolutions brought about by applications biology highlighted. Finally, viewpoints future perspectives emerging field discussed.

Язык: Английский

Процитировано

562

Soft actuators for real-world applications DOI
Meng Li, Aniket Pal, Amirreza Aghakhani

и другие.

Nature Reviews Materials, Год журнала: 2021, Номер 7(3), С. 235 - 249

Опубликована: Ноя. 10, 2021

Язык: Английский

Процитировано

541

Stretchable and tough conductive hydrogels for flexible pressure and strain sensors DOI
Zhenwu Wang, Yang Cong, Jun Fu

и другие.

Journal of Materials Chemistry B, Год журнала: 2020, Номер 8(16), С. 3437 - 3459

Опубликована: Янв. 1, 2020

Flexible pressure and strain sensors have great potential for applications in wearable implantable devices, soft robotics artificial skin. Compared to flexible based on filler/elastomer composites, conductive hydrogels are advantageous due their biomimetic structures properties, as well biocompatibility. Numerous chemical structural designs provide unlimited opportunities tune the properties performance of match various demands practical applications. Many electronically ionically been developed fabricate with different configurations, including resistance type capacitance type. The sensitivity, reliability stability hydrogel dependent network mechanical properties. This review focuses tough sensors. Representative strategies prepare stretchable, strong, self-healing briefly reviewed since these illuminating development hydrogels. Then, a general account is presented discussed. Recent advances designed sensory discussed detail. A series application devices reviewed. Some perspectives at end.

Язык: Английский

Процитировано

504

Magnetic Soft Materials and Robots DOI
Yoonho Kim,

Xuanhe Zhao

Chemical Reviews, Год журнала: 2022, Номер 122(5), С. 5317 - 5364

Опубликована: Фев. 1, 2022

In conventional classification, soft robots feature mechanical compliance as the main distinguishing factor from traditional made of rigid materials. Recent advances in functional materials have facilitated emergence a new class capable tether-free actuation response to external stimuli such heat, light, solvent, or electric magnetic field. Among various types stimuli-responsive materials, shown remarkable progress their design and fabrication, leading development with unique advantages potential for many important applications. However, field is still its infancy requires further advancements terms principles, fabrication methods, control mechanisms, sensing modalities. Successful future would require comprehensive understanding fundamental principle actuation, well physical properties behavior this review, we discuss recent modeling simulation, robots. We then give set guidelines optimal performance Lastly, summarize biomedical applications provide our perspectives on next-generation

Язык: Английский

Процитировано

494

Functional Fibers and Fabrics for Soft Robotics, Wearables, and Human–Robot Interface DOI Creative Commons
Jiaqing Xiong, Jian Chen, Pooi See Lee

и другие.

Advanced Materials, Год журнала: 2020, Номер 33(19)

Опубликована: Окт. 6, 2020

Abstract Soft robotics inspired by the movement of living organisms, with excellent adaptability and accuracy for accomplishing tasks, are highly desirable efficient operations safe interactions human. With emerging wearable electronics, higher tactility skin affinity pursued user‐friendly human–robot interactions. Fabrics interlocked fibers perform traditional static functions such as warming, protection, fashion. Recently, dynamic fabrics favorable to deliver active stimulus responses sensing actuating abilities soft‐robots wearables. First, responsive mechanisms fiber/fabric actuators their performances under various external stimuli reviewed. Fiber/yarn‐based artificial muscles manipulation assistance in human motion discussed, well smart clothes improving perception. Second, geometric designs, fabrications, mechanisms, fibers/fabrics energy harvesting from body environments summarized. Effective integration between electronic components garments, skin, organisms is illustrated, presenting multifunctional platforms self‐powered potential biomedicine. Lastly, relationships robotic/wearable stimuli, together challenges possible routes revolutionizing robotic wearables this new era proposed.

Язык: Английский

Процитировано

427

Hydrogel soft robotics DOI Creative Commons
Young‐Hoon Lee, Won Jun Song, Jeong‐Yun Sun

и другие.

Materials Today Physics, Год журнала: 2020, Номер 15, С. 100258 - 100258

Опубликована: Авг. 5, 2020

With the rapidly growing attention to human-robot interfaces, soft robotics has attracted a great deal of interest. Soft robots have diverse advantages, including compliancy and safety, which contribute seamless interactions with humans. To boost progress in field, there is need for compliant materials. Hydrogels are promising as materials because their outstanding features, high stretchability, transparency, ion conductivity, biocompatibility. Furthermore, hydrogels provide innovative capabilities based on unique responsiveness stimuli. In this review, we discuss features hydrogel-based robots, from fundamental working mechanisms notable applications. Finally, suggest perspectives future directions that addressing potential challenges field hydrogel robotics.

Язык: Английский

Процитировано

388

Trends in Micro‐/Nanorobotics: Materials Development, Actuation, Localization, and System Integration for Biomedical Applications DOI
Ben Wang, Kostas Kostarelos, Bradley J. Nelson

и другие.

Advanced Materials, Год журнала: 2020, Номер 33(4)

Опубликована: Дек. 4, 2020

Abstract Micro‐/nanorobots (m‐bots) have attracted significant interest due to their suitability for applications in biomedical engineering and environmental remediation. Particularly, vivo diagnosis intervention been the focus of extensive research recent years with various clinical imaging techniques being applied localization tracking. The successful integration well‐designed m‐bots surface functionalization, remote actuation systems, becomes crucial step toward applications, especially uses. This review thus addresses four different aspects m‐bots: design/fabrication, actuation, localization. diagnosis, sensing, microsurgery, targeted drug/cell delivery, thrombus ablation, wound healing are reviewed from these viewpoints. developed m‐bot systems comprehensively compared evaluated based on characteristics. current challenges directions future this field summarized.

Язык: Английский

Процитировано

385

Soft Actuators for Soft Robotic Applications: A Review DOI Creative Commons
Nazek El‐Atab, Rishabh Mishra, Fhad Al‐Modaf

и другие.

Advanced Intelligent Systems, Год журнала: 2020, Номер 2(10)

Опубликована: Авг. 23, 2020

Soft robotics technologies are paving the way toward robotic abilities which vital for a wide range of applications, including manufacturing, manipulation, gripping, human–machine interaction, locomotion, and more. An essential component in soft robot is actuator provides system with deformable body allows it to interact environment achieve desired actuation pattern, such as locomotion. This Review article aims provide researchers interested field reference guide about various state‐of‐the‐art methodologies that developed stimuli light, heat, applied electric magnetic fields focus on their applications robotics. The underlying principles actuators discussed resulting motion complexities, deformations, multi‐functionalities. Finally, promising examples different addition further development potential.

Язык: Английский

Процитировано

382

3D printing of highly stretchable hydrogel with diverse UV curable polymers DOI Creative Commons
Qi Ge, Zhe Chen, Jianxiang Cheng

и другие.

Science Advances, Год журнала: 2021, Номер 7(2)

Опубликована: Янв. 6, 2021

This article proposes an approach of 3D printing structures consisting stretchable hydrogels bonded with UV curable polymers.

Язык: Английский

Процитировано

378