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Wang X, Pan C, Xia N, Zhang C, Hao B, Jin D, Su L, Zhao J, Majidi C, Zhang L. Fracture-driven power amplification in a hydrogel launcher. NATURE MATERIALS 2024:10.1038/s41563-024-01955-4. [PMID: 39043929 DOI: 10.1038/s41563-024-01955-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 06/25/2024] [Indexed: 07/25/2024]
Abstract
Robotic tasks that require robust propulsion abilities such as jumping, ejecting or catapulting require power-amplification strategies where kinetic energy is generated from pre-stored energy. Here we report an engineered accumulated strain energy-fracture power-amplification method that is inspired by the pressurized fluidic squirting mechanism of Ecballium elaterium (squirting cucumber plants). We realize a light-driven hydrogel launcher that harnesses fast liquid vapourization triggered by the photothermal response of an embedded graphene suspension. This vapourization leads to appreciable elastic energy storage within the surrounding hydrogel network, followed by rapid elastic energy release within 0.3 ms. These soft hydrogel robots achieve controlled launching at high velocity with a predictable trajectory. The accumulated strain energy-fracture method was used to create an artificial squirting cucumber that disperses artificial seeds over metres, which can further achieve smart seeding through an integrated radio-frequency identification chip. This power-amplification strategy provides a basis for propulsive motion to advance the capabilities of miniaturized soft robotic systems.
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Affiliation(s)
- Xin Wang
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Chengfeng Pan
- The State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical Engineering, Zhejiang University, Hangzhou, People's Republic of China.
| | - Neng Xia
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Chong Zhang
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Bo Hao
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Dongdong Jin
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), Guangdong, People's Republic of China
| | - Lin Su
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Jinsheng Zhao
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, People's Republic of China
| | - Carmel Majidi
- Soft Machines Lab, Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA.
| | - Li Zhang
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, People's Republic of China.
- Multi-Scale Medical Robotics Center, Hong Kong Science Park, Shatin NT, Hong Kong, People's Republic of China.
- CUHK T Stone Robotics Institute, The Chinese University of Hong Kong, Hong Kong, People's Republic of China.
- Chow Yuk Ho Technology Center for Innovative Medicine, The Chinese University of Hong Kong, Hong Kong, People's Republic of China.
- Department of Surgery, The Chinese University of Hong Kong, Hong Kong, People's Republic of China.
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2
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Zhao X, Yao H, Lv Y, Chen Z, Dong L, Huang J, Mi S. Reprogrammable Magnetic Soft Actuators with Microfluidic Functional Modules via Pixel-Assembly. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310009. [PMID: 38295155 DOI: 10.1002/smll.202310009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/31/2023] [Indexed: 02/02/2024]
Abstract
Magnetic soft actuators and robots have attracted considerable attention in biomedical applications due to their speedy response, programmability, and biocompatibility. Despite recent advancements, the fabrication process of magnetic actuators and the reprogramming approach of their magnetization profiles continue to pose challenges. Here, a facile fabrication strategy is reported based on arrangements and distributions of reusable magnetic pixels on silicone substrates, allowing for various magnetic actuators with customizable architectures, arbitrary magnetization profiles, and integration of microfluidic technology. This approach enables intricate configurations with decent deformability and programmability, as well as biomimetic movements involving grasping, swimming, and wriggling in response to magnetic actuation. Moreover, microfluidic functional modules are integrated for various purposes, such as on/off valve control, curvature adjustment, fluid mixing, dynamic microfluidic architecture, and liquid delivery robot. The proposed method fulfills the requirements of low-cost, rapid, and simplified preparation of magnetic actuators, since it eliminates the need to sustain pre-defined deformations during the magnetization process or to employ laser heating or other stimulation for reprogramming the magnetization profile. Consequently, it is envisioned that magnetic actuators fabricated via pixel-assembly will have broad prospects in microfluidics and biomedical applications.
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Affiliation(s)
- Xiaoyu Zhao
- Bio-manufacturing Engineering Laboratory, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong, 518000, China
| | - Hongyi Yao
- Bio-manufacturing Engineering Laboratory, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong, 518000, China
| | - Yaoyi Lv
- Bio-manufacturing Engineering Laboratory, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong, 518000, China
| | - Zhixian Chen
- Bio-manufacturing Engineering Laboratory, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong, 518000, China
| | - Lina Dong
- Bio-manufacturing Engineering Laboratory, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong, 518000, China
| | - Jiajun Huang
- Bio-manufacturing Engineering Laboratory, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong, 518000, China
- Optometry Advanced Medical Equipment R&D Center, Research Institute of Tsinghua University in Shenzhen, Shenzhen, Guangdong, 518000, China
| | - Shengli Mi
- Bio-manufacturing Engineering Laboratory, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong, 518000, China
- Optometry Advanced Medical Equipment R&D Center, Research Institute of Tsinghua University in Shenzhen, Shenzhen, Guangdong, 518000, China
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3
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Zhu QL, Liu W, Khoruzhenko O, Breu J, Bai H, Hong W, Zheng Q, Wu ZL. Closed Twisted Hydrogel Ribbons with Self-Sustained Motions under Static Light Irradiation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2314152. [PMID: 38652466 DOI: 10.1002/adma.202314152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Revised: 03/25/2024] [Indexed: 04/25/2024]
Abstract
Self-sustained motions are widespread in biological systems by harvesting energy from surrounding environments, which inspire scientists to develop autonomous soft robots. However, most-existing soft robots require dynamic heterogeneous stimuli or complex fabrication with different components. Recently, control of topological geometry has been promising to afford soft robots with physical intelligence and thus life-like motions. Reported here are a series of closed twisted ribbon robots, which exhibit self-sustained flipping and rotation under constant light irradiation. Both Möbius strip and Seifert ribbon robots are devised for the first time by using an identical hydrogel, which responds to light irradiation on either side. Experiment and simulation results indicate that the self-regulated motions of the hydrogel robots are related to fast and reversible response of muscle-like gel, self-shadowing effect, and topology-facilitated refresh of light-exposed regions. The motion speeds and directions of the hydrogel robots can be tuned over a wide range. These closed twisted ribbon hydrogels are further applied to execute specific tasks in aqueous environments, such as collecting plastic balls, climbing a vertical rod, and transporting objects. This work presents new design principle for autonomous hydrogel robots by benefiting from material response and topology geometry, which may be inspirative for the robotics community.
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Affiliation(s)
- Qing Li Zhu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China
| | - Weixuan Liu
- Department of Mechanics and Aerospace Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Olena Khoruzhenko
- Bavarian Polymer Institute and Department of Chemistry, University of Bayreuth, Universitätsstrasse 30, 95440, Bayreuth, Germany
| | - Josef Breu
- Bavarian Polymer Institute and Department of Chemistry, University of Bayreuth, Universitätsstrasse 30, 95440, Bayreuth, Germany
| | - Huiying Bai
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China
| | - Wei Hong
- Department of Mechanics and Aerospace Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Qiang Zheng
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China
| | - Zi Liang Wu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China
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4
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Han W, Gao W, Wang X. Enhanced Magnetic Soft Robotics: Integrating Fiber Optics and 3D Printing for Rapid Actuation and Precision Sensing. ACS APPLIED MATERIALS & INTERFACES 2024; 16:30396-30407. [PMID: 38820388 DOI: 10.1021/acsami.4c04586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2024]
Abstract
Timely, accurate, and rapid grasping of dynamic change information in magnetic actuation soft robots is essential for advancing their evolution toward intelligent, integrated, and multifunctional systems. However, existing magnetic-actuation soft robots lack effective functions for integrating sensing and actuation. Herein, we demonstrate the integration of distributed fiber optics technology with advanced-programming 3D printing techniques. This integration provides our soft robots unique capabilities such as integrated sensing, precise shape reconstruction, controlled deformation, and sophisticated magnetic navigation. By utilizing an improved magneto-mechanical coupling model and an advanced inversion algorithm, we successfully achieved real-time reconstruction of complex structures, such as 'V', 'N', and 'M' shapes and gripper designs, with a notable response time of 34 ms. Additionally, our robots demonstrate proficiency in magnetic navigation and closed-loop deformation control, making them ideal for operation in confined or obscured environments. This work thus provides a transformative strategy to meet unmet demands in the rapidly growing field of soft robotics, especially in establishing the theoretical and technological foundation for constructing digitized robots.
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Affiliation(s)
- Wenheng Han
- Key Laboratory of Mechanics on Western Disaster and Environment, MoE, College of Civil Engineering and Mechanic, Key Laboratory of Special Function Materials and Structure Design of Ministry of Education, Lanzhou University, Lanzhou 730000, PR China
| | - Wei Gao
- School of Science, Lanzhou University of Technology, Lanzhou 730050, PR China
| | - Xingzhe Wang
- Key Laboratory of Mechanics on Western Disaster and Environment, MoE, College of Civil Engineering and Mechanic, Key Laboratory of Special Function Materials and Structure Design of Ministry of Education, Lanzhou University, Lanzhou 730000, PR China
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Chen Y, Estevez D, Zhu Z, Wang Y, Mai YW, Qin F. Multifunctional Conductive Hydrogel Composites with Nickel Nanowires and Liquid Metal Conductive Highways. ACS APPLIED MATERIALS & INTERFACES 2024; 16:29267-29281. [PMID: 38780052 DOI: 10.1021/acsami.4c05344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
The dramatic growth of smart wearable electronics has generated a demand for conductive hydrogels due to their tunability, stimulus responsiveness, and multimodal sensing capabilities. However, the substantial trade-off between mechanical and electrical properties hinders their multifunctionality. Here, we report a double-network hydrogel composite that features a conductive "highway" constructed using magnetic-field-aligned nickel nanowires and liquid metal. The liquid metal fills the gaps between the aligned nickel nanowires. Such interconnected structures can form efficient conductive paths at low filler content, resulting in high conductivity (1.11 × 104 S/m) and mechanical compliance (Young's modulus, 89 kPa; toughness, 721 kJ/m3). When used as a wearable sensor, the hydrogel displays a high sensitivity and fast response for wireless motion detection and human-machine interaction. Furthermore, by exploiting its outstanding conductivity and electrical heating capacity, the hydrogel integrates electromagnetic shielding and thermal management functionalities. Owing to these all-around properties, our design offers a broader platform for expanding hydrogel applications.
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Affiliation(s)
- Yanlin Chen
- Institute for Composites Science Innovation (InCSI), School of Materials Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
| | - Diana Estevez
- Ningbo Innovation Center, Zhejiang University, 1 South Qianhu Road, Ningbo 315100, P. R. China
| | - Zihao Zhu
- Institute for Composites Science Innovation (InCSI), School of Materials Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
| | - Yunfei Wang
- Institute for Composites Science Innovation (InCSI), School of Materials Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
| | - Yiu-Wing Mai
- Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 999077, P. R. China
| | - Faxiang Qin
- Institute for Composites Science Innovation (InCSI), School of Materials Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
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6
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Zhao J, Xin C, Zhu J, Xia N, Hao B, Liu X, Tan Y, Yang S, Wang X, Xue J, Wang Q, Lu H, Zhang L. Insect-Scale Biped Robots Based on Asymmetrical Friction Effect Induced by Magnetic Torque. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2312655. [PMID: 38465794 DOI: 10.1002/adma.202312655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 03/04/2024] [Indexed: 03/12/2024]
Abstract
Multimodal and controllable locomotion in complex terrain is of great importance for practical applications of insect-scale robots. Robust locomotion plays a particularly critical role. In this study, a locomotion mechanism for magnetic robots based on asymmetrical friction effect induced by magnetic torque is revealed and defined. The defined mechanism overcomes the design constraints imposed by both robot and substrate structures, enabling the realization of multimodal locomotion on complex terrains. Drawing inspiration from human walking and running locomotion, a biped robot based on the mechanism is proposed, which not only exhibits rapid locomotion across substrates with varying friction coefficients but also achieves precise locomotion along patterned trajectories through programmed controlling. Furthermore, apart from its exceptional locomotive capabilities, the biped robot demonstrates remarkable robustness in terms of load-carrying and weight-bearing performance. The presented locomotion and mechanism herein introduce a novel concept for designing magnetic robots while offering extensive possibilities for practical applications in insect-scale robotics.
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Affiliation(s)
- Jinsheng Zhao
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, 999077, China
| | - Chen Xin
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, 999077, China
| | - Jiaqi Zhu
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, 999077, China
| | - Neng Xia
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, 999077, China
| | - Bo Hao
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, 999077, China
| | - Xurui Liu
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, 999077, China
| | - Yu Tan
- College of Environment and Civil Engineering, Chengdu University of Technology, Chengdu, 610059, China
| | - Shihao Yang
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, 999077, China
| | - Xin Wang
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, 999077, China
| | - Junnan Xue
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, 999077, China
| | - Qinglong Wang
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, 999077, China
| | - Haojian Lu
- State Key Laboratory of Industrial Control and Technology, Zhejiang University, Hangzhou, 310027, China
- Institute of Cyber-Systems and Control, Department of Control Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Li Zhang
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, 999077, China
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7
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Xu GC, Nie Y, Li HN, Li WL, Lin WT, Xue YR, Li K, Fang Y, Liang HQ, Yang HC, Zhan H, Zhang C, Lü C, Xu ZK. Supergravity-Steered Generic Manufacturing of Nanosheets-Embedded Nanocomposite Hydrogel with Highly Oriented, Heterogeneous Architecture. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2400075. [PMID: 38597782 DOI: 10.1002/adma.202400075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 04/04/2024] [Indexed: 04/11/2024]
Abstract
Designing nanocomposite hydrogels with oriented nanosheets has emerged as a promising toolkit to achieve preferential performances that go beyond their disordered counterparts. Although current fabrication strategies via electric/magnetic force fields have made remarkable achievements, they necessitate special properties of nanosheets and suffer from an inferior orientation degree of nanosheets. Herein, a facile and universal approach is discovered to elaborate MXene-based nanocomposite hydrogels with highly oriented, heterogeneous architecture by virtue of supergravity to replace conventional force fields. The key to such architecture is to leverage bidirectional, force-tunable attributes of supergravity containing coupled orthogonal shear and centrifugal force field for steering high-efficient movement, pre-orientation, and stacking of MXene nanosheets in the bottom. Such a synergetic effect allows for yielding heterogeneous nanocomposite hydrogels with a high-orientation MXene-rich layer (orientation degree, f = 0.83) and a polymer-rich layer. The authors demonstrate that MXene-based nanocomposite hydrogels leverage their high-orientation, heterogeneous architecture to deliver an extraordinary electromagnetic interference shielding effectiveness of 55.2 dB at 12.4 GHz yet using a super-low MXene of 0.3 wt%, surpassing most hydrogels-based electromagnetic shielding materials. This versatile supergravity-steered strategy can be further extended to arbitrary nanosheets including MoS2, GO, and C3N4, offering a paradigm in the development of oriented nanocomposites.
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Affiliation(s)
- Guang-Chang Xu
- Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province and MOE Engineering Center of Separation Membranes and Water Treatment, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou, 310058, China
| | - Yihan Nie
- College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, 310058, China
| | - Hao-Nan Li
- Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province and MOE Engineering Center of Separation Membranes and Water Treatment, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou, 310058, China
| | - Wan-Long Li
- Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province and MOE Engineering Center of Separation Membranes and Water Treatment, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou, 310058, China
| | - Wan-Ting Lin
- Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province and MOE Engineering Center of Separation Membranes and Water Treatment, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou, 310058, China
| | - Yu-Ren Xue
- Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province and MOE Engineering Center of Separation Membranes and Water Treatment, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou, 310058, China
| | - Kai Li
- Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province and MOE Engineering Center of Separation Membranes and Water Treatment, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou, 310058, China
| | - Yu Fang
- Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province and MOE Engineering Center of Separation Membranes and Water Treatment, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou, 310058, China
| | - Hong-Qing Liang
- Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province and MOE Engineering Center of Separation Membranes and Water Treatment, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou, 310058, China
| | - Hao-Cheng Yang
- Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province and MOE Engineering Center of Separation Membranes and Water Treatment, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou, 310058, China
| | - Haifei Zhan
- College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, 310058, China
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology (QUT), Brisbane, QLD, 4001, Australia
| | - Chao Zhang
- Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province and MOE Engineering Center of Separation Membranes and Water Treatment, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou, 310058, China
| | - Chaofeng Lü
- College of Civil Engineering and Architecture, Zhejiang University, Hangzhou, 310058, China
- Faculty of Mechanical Engineering & Mechanics, Ningbo University, Ningbo, 315211, China
| | - Zhi-Kang Xu
- Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province and MOE Engineering Center of Separation Membranes and Water Treatment, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China
- The "Belt and Road" Sino-Portugal Joint Lab on Advanced Materials, International Research Center for X Polymers, Zhejiang University, Hangzhou, 310058, China
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8
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Gong S, Li W, Wu J, Feng B, Yi Z, Guo X, Zhang W, Shao L. A Soft Collaborative Robot for Contact-based Intuitive Human Drag Teaching. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308835. [PMID: 38647364 PMCID: PMC11200028 DOI: 10.1002/advs.202308835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 04/07/2024] [Indexed: 04/25/2024]
Abstract
Soft material-based robots, known for their safety and compliance, are expected to play an irreplaceable role in human-robot collaboration. However, this expectation is far from real industrial applications due to their complex programmability and poor motion precision, brought by the super elasticity and large hysteresis of soft materials. Here, a soft collaborative robot (Soft Co-bot) with intuitive and easy programming by contact-based drag teaching, and also with exceptional motion repeatability (< 0.30% of body length) and ultra-low hysteresis (< 2.0%) is reported. Such an unprecedented capability is achieved by a biomimetic antagonistic design within a pneumatic soft robot, in which cables are threaded to servo motors through tension sensors to form a self-sensing system, thus providing both precise actuation and dragging-aware collaboration. Hence, the Soft Co-bots can be first taught by human drag and then precisely repeat various tasks on their own, such as electronics assembling, machine tool installation, etc. The proposed Soft Co-bots exhibit a high potential for safe and intuitive human-robot collaboration in unstructured environments, promoting the immediate practical application of soft robots.
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Affiliation(s)
- Shoulu Gong
- University of Michigan–Shanghai Jiao Tong University Joint InstituteShanghai Jiao Tong UniversityShanghai200240China
| | - Wenbo Li
- School of Mechanical Engineering and State Key Laboratory of Mechanical System and VibrationShanghai Jiao Tong UniversityShanghai200240China
- School of Aerospace Engineering and Applied MechanicsTongji UniversityShanghai200092China
| | - Jiahao Wu
- University of Michigan–Shanghai Jiao Tong University Joint InstituteShanghai Jiao Tong UniversityShanghai200240China
| | - Bohan Feng
- University of Michigan–Shanghai Jiao Tong University Joint InstituteShanghai Jiao Tong UniversityShanghai200240China
| | - Zhiran Yi
- School of Mechanical Engineering and State Key Laboratory of Mechanical System and VibrationShanghai Jiao Tong UniversityShanghai200240China
| | - Xinyu Guo
- School of Mechanical Engineering and State Key Laboratory of Mechanical System and VibrationShanghai Jiao Tong UniversityShanghai200240China
| | - Wenming Zhang
- School of Mechanical Engineering and State Key Laboratory of Mechanical System and VibrationShanghai Jiao Tong UniversityShanghai200240China
| | - Lei Shao
- University of Michigan–Shanghai Jiao Tong University Joint InstituteShanghai Jiao Tong UniversityShanghai200240China
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9
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Lu P, Liao X, Guo X, Cai C, Liu Y, Chi M, Du G, Wei Z, Meng X, Nie S. Gel-Based Triboelectric Nanogenerators for Flexible Sensing: Principles, Properties, and Applications. NANO-MICRO LETTERS 2024; 16:206. [PMID: 38819527 PMCID: PMC11143175 DOI: 10.1007/s40820-024-01432-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 04/30/2024] [Indexed: 06/01/2024]
Abstract
The rapid development of the Internet of Things and artificial intelligence technologies has increased the need for wearable, portable, and self-powered flexible sensing devices. Triboelectric nanogenerators (TENGs) based on gel materials (with excellent conductivity, mechanical tunability, environmental adaptability, and biocompatibility) are considered an advanced approach for developing a new generation of flexible sensors. This review comprehensively summarizes the recent advances in gel-based TENGs for flexible sensors, covering their principles, properties, and applications. Based on the development requirements for flexible sensors, the working mechanism of gel-based TENGs and the characteristic advantages of gels are introduced. Design strategies for the performance optimization of hydrogel-, organogel-, and aerogel-based TENGs are systematically summarized. In addition, the applications of gel-based TENGs in human motion sensing, tactile sensing, health monitoring, environmental monitoring, human-machine interaction, and other related fields are summarized. Finally, the challenges of gel-based TENGs for flexible sensing are discussed, and feasible strategies are proposed to guide future research.
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Affiliation(s)
- Peng Lu
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, People's Republic of China
- Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 101400, People's Republic of China
| | - Xiaofang Liao
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, People's Republic of China
| | - Xiaoyao Guo
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, People's Republic of China
| | - Chenchen Cai
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, People's Republic of China
| | - Yanhua Liu
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, People's Republic of China
| | - Mingchao Chi
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, People's Republic of China
| | - Guoli Du
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, People's Republic of China
| | - Zhiting Wei
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, People's Republic of China
| | - Xiangjiang Meng
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, People's Republic of China
| | - Shuangxi Nie
- School of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, People's Republic of China.
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10
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Xian W, Zhan YS, Maiti A, Saab AP, Li Y. Filled Elastomers: Mechanistic and Physics-Driven Modeling and Applications as Smart Materials. Polymers (Basel) 2024; 16:1387. [PMID: 38794580 PMCID: PMC11125212 DOI: 10.3390/polym16101387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 05/06/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024] Open
Abstract
Elastomers are made of chain-like molecules to form networks that can sustain large deformation. Rubbers are thermosetting elastomers that are obtained from irreversible curing reactions. Curing reactions create permanent bonds between the molecular chains. On the other hand, thermoplastic elastomers do not need curing reactions. Incorporation of appropriated filler particles, as has been practiced for decades, can significantly enhance mechanical properties of elastomers. However, there are fundamental questions about polymer matrix composites (PMCs) that still elude complete understanding. This is because the macroscopic properties of PMCs depend not only on the overall volume fraction (ϕ) of the filler particles, but also on their spatial distribution (i.e., primary, secondary, and tertiary structure). This work aims at reviewing how the mechanical properties of PMCs are related to the microstructure of filler particles and to the interaction between filler particles and polymer matrices. Overall, soft rubbery matrices dictate the elasticity/hyperelasticity of the PMCs while the reinforcement involves polymer-particle interactions that can significantly influence the mechanical properties of the polymer matrix interface. For ϕ values higher than a threshold, percolation of the filler particles can lead to significant reinforcement. While viscoelastic behavior may be attributed to the soft rubbery component, inelastic behaviors like the Mullins and Payne effects are highly correlated to the microstructures of the polymer matrix and the filler particles, as well as that of the polymer-particle interface. Additionally, the incorporation of specific filler particles within intelligently designed polymer systems has been shown to yield a variety of functional and responsive materials, commonly termed smart materials. We review three types of smart PMCs, i.e., magnetoelastic (M-), shape-memory (SM-), and self-healing (SH-) PMCs, and discuss the constitutive models for these smart materials.
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Affiliation(s)
- Weikang Xian
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA; (W.X.); (Y.-S.Z.)
| | - You-Shu Zhan
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA; (W.X.); (Y.-S.Z.)
| | - Amitesh Maiti
- Lawrence Livermore National Laboratory, Livermore, CA 94550, USA; (A.M.); (A.P.S.)
| | - Andrew P. Saab
- Lawrence Livermore National Laboratory, Livermore, CA 94550, USA; (A.M.); (A.P.S.)
| | - Ying Li
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA; (W.X.); (Y.-S.Z.)
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11
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Dong M, Liu W, Dai CF, Jiao D, Zhu QL, Hong W, Yin J, Zheng Q, Wu ZL. Photo-steered rapid and multimodal locomotion of 3D-printed tough hydrogel robots. MATERIALS HORIZONS 2024; 11:2143-2152. [PMID: 38376773 DOI: 10.1039/d3mh02247a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
Hydrogels are an ideal material to develop soft robots. However, it remains a grand challenge to develop miniaturized hydrogel robots with mechanical robustness, rapid actuation, and multi-gait motions. Reported here is a facile strategy to fabricate hydrogel-based soft robots by three-dimensional (3D) printing of responsive and nonresponsive tough gels for programmed morphing and locomotion upon stimulations. Highly viscoelastic poly(acrylic acid-co-acrylamide) and poly(acrylic acid-co-N-isopropyl acrylamide) aqueous solutions, as well as their mixtures, are printed with multiple nozzles into 3D constructs followed by incubation in a solution of zirconium ions to form robust carboxyl-Zr4+ coordination complexes, to produce tough metallo-supramolecular hydrogel fibers. Gold nanorods are incorporated into ink to afford printed gels with response to light. Owing to the mechanical excellence and small diameter of gel fibers, the printed hydrogel robots exhibit high robustness, fast response, and agile motions when remotely steered by dynamic light. The design of printed constructs and steering with spatiotemporal light allow for multimodal motions with programmable trajectories of the gel robots. The hydrogel robots can walk, turn, flip, and transport cargos upon light stimulations. Such printed hydrogels with good mechanical performances, fast response, and agile locomotion may open opportunities for soft robots in biomedical and engineering fields.
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Affiliation(s)
- Min Dong
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China.
| | - Weixuan Liu
- Shenzhen Key Laboratory of Soft Mechanics & Smart Manufacturing, Department of Mechanics and Aerospace Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Chen Fei Dai
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China.
| | - Dejin Jiao
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China.
| | - Qing Li Zhu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China.
| | - Wei Hong
- Shenzhen Key Laboratory of Soft Mechanics & Smart Manufacturing, Department of Mechanics and Aerospace Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jun Yin
- The State Key Laboratory of Fluid Power and Mechatronic Systems, Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, School of Mechanical Engineering Zhejiang University, Hangzhou 310058, China
| | - Qiang Zheng
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China.
| | - Zi Liang Wu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, China.
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12
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Yang W, Wang X, Teng X, Qiao Z, Yu H, Yuan Z. A bionic mimosa soft robot based on a multi-responsive PNIPAM-PEGDA hydrogel composition. BIOMICROFLUIDICS 2024; 18:034102. [PMID: 38726372 PMCID: PMC11078265 DOI: 10.1063/5.0203482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 04/22/2024] [Indexed: 05/12/2024]
Abstract
Deformation plays a vital role in the survival of natural organisms. One example is that plants deform themselves to face the sun for sufficient sunlight exposure, which allows them to produce nutrients through photosynthesis. Drawing inspiration from nature, researchers have been exploring the development of 3D deformable materials. However, the traditional approach to manufacturing deformable hydrogels relies on complex technology, which limits their potential applications. In this study, we simulate the stress variations observed in the plant tissue to create a 3D structure from a 2D material. Using UV curing technology, we create a single-layer poly(N-isopropylacrylamide) hydrogel sheet with microchannels that exhibit distinct swelling rates when subjected to stimulation. After a two-step curing process, we produce a poly(N-isopropylacrylamide)-polyethylene glycol diacrylatedouble-layer structure that can be manipulated to change its shape by controlling the light and solvent content. Based on the double-layer structure, we fabricate a dual-response driven bionic mimosa robot that can perform a variety of functions. This soft robot can not only reversibly change its shape but also maintain a specific shape without continuous stimulation. Its capacity for reversible deformation, resulting from internal stress, presents promising application prospects in the biomedical and soft robotics domain. This study delivers an insightful framework for the development of programmable soft materials.
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Affiliation(s)
- Wenguang Yang
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China
| | - Xiaowen Wang
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China
| | - Xiangyu Teng
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China
| | - Zezheng Qiao
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China
| | - Haibo Yu
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
| | - Zheng Yuan
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China
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13
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Gao Y, Wang X, Chen Y. Light-driven soft microrobots based on hydrogels and LCEs: development and prospects. RSC Adv 2024; 14:14278-14288. [PMID: 38694551 PMCID: PMC11062240 DOI: 10.1039/d4ra00495g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 04/08/2024] [Indexed: 05/04/2024] Open
Abstract
In the daily life of mankind, microrobots can respond to stimulations received and perform different functions, which can be used to complete repetitive or dangerous tasks. Magnetic driving works well in robots that are tens or hundreds of microns in size, but there are big challenges in driving microrobots that are just a few microns in size. Therefore, it is impossible to guarantee the precise drive of microrobots to perform tasks. Acoustic driven micro-nano robot can achieve non-invasive and on-demand movement, and the drive has good biological compatibility, but the drive mode has low resolution and requires expensive experimental equipment. Light-driven robots move by converting light energy into other forms of energy. Light is a renewable, powerful energy source that can be used to transmit energy. Due to the gradual maturity of beam modulation and optical microscope technology, the application of light-driven microrobots has gradually become widespread. Light as a kind of electromagnetic wave, we can change the energy of light by controlling the wavelength and intensity of light. Therefore, the light-driven robot has the advantages of programmable, wireless, high resolution and accurate spatio-temporal control. According to the types of robots, light-driven robots are subdivided into three categories, namely light-driven soft microrobots, photochemical microrobots and 3D printed hard polymer microrobots. In this paper, the driving materials, driving mechanisms and application scenarios of light-driven soft microrobots are reviewed, and their advantages and limitations are discussed. Finally, we prospected the field, pointed out the challenges faced by light-driven soft micro robots and proposed corresponding solutions.
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Affiliation(s)
- Yingnan Gao
- School of Electromechanical and Automotive Engineering, Yantai University Yantai 264005 China
| | - Xiaowen Wang
- School of Electromechanical and Automotive Engineering, Yantai University Yantai 264005 China
| | - Yibao Chen
- School of Electromechanical and Automotive Engineering, Yantai University Yantai 264005 China
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14
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Kwon H, Yang Y, Kim G, Gim D, Ha M. Anisotropy in magnetic materials for sensors and actuators in soft robotic systems. NANOSCALE 2024; 16:6778-6819. [PMID: 38502047 DOI: 10.1039/d3nr05737b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
The field of soft intelligent robots has rapidly developed, revealing extensive potential of these robots for real-world applications. By mimicking the dexterities of organisms, robots can handle delicate objects, access remote areas, and provide valuable feedback on their interactions with different environments. For autonomous manipulation of soft robots, which exhibit nonlinear behaviors and infinite degrees of freedom in transformation, innovative control systems integrating flexible and highly compliant sensors should be developed. Accordingly, sensor-actuator feedback systems are a key strategy for precisely controlling robotic motions. The introduction of material magnetism into soft robotics offers significant advantages in the remote manipulation of robotic operations, including touch or touchless detection of dynamically changing shapes and positions resulting from the actuations of robots. Notably, the anisotropies in the magnetic nanomaterials facilitate the perception and response with highly selective, directional, and efficient ways used for both sensors and actuators. Accordingly, this review provides a comprehensive understanding of the origins of magnetic anisotropy from both intrinsic and extrinsic factors and summarizes diverse magnetic materials with enhanced anisotropy. Recent developments in the design of flexible sensors and soft actuators based on the principle of magnetic anisotropy are outlined, specifically focusing on their applicabilities in soft robotic systems. Finally, this review addresses current challenges in the integration of sensors and actuators into soft robots and offers promising solutions that will enable the advancement of intelligent soft robots capable of efficiently executing complex tasks relevant to our daily lives.
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Affiliation(s)
- Hyeokju Kwon
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea.
| | - Yeonhee Yang
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea.
| | - Geonsu Kim
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea.
| | - Dongyeong Gim
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea.
| | - Minjeong Ha
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea.
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15
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Yao X, Chen H, Qin H, Cong HP. Nanocomposite Hydrogel Actuators with Ordered Structures: From Nanoscale Control to Macroscale Deformations. SMALL METHODS 2024; 8:e2300414. [PMID: 37365950 DOI: 10.1002/smtd.202300414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/06/2023] [Indexed: 06/28/2023]
Abstract
Flexible intelligent actuators with the characteristics of flexibility, safety and scalability, are highly promising in industrial production, biomedical fields, environmental monitoring, and soft robots. Nanocomposite hydrogels are attractive candidates for soft actuators due to their high pliability, intelligent responsiveness, and capability to execute large-scale rapid reversible deformations under external stimuli. Here, the recent advances of nanocomposite hydrogels as soft actuators are reviewed and focus is on the construction of elaborate and programmable structures by the assembly of nano-objects in the hydrogel matrix. With the help of inducing the gradient or oriented distributions of the nanounits during the gelation process by the external forces or molecular interactions, nanocomposite hydrogels with ordered structures are achieved, which can perform bending, spiraling, patterned deformations, and biomimetic complex shape changes. Given great advantages of these intricate yet programmable shape-morphing, nanocomposite hydrogel actuators have presented high potentials in the fields of moving robots, energy collectors, and biomedicines. In the end, the challenges and future perspectives of this emerging field of nanocomposite hydrogel actuators are proposed.
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Affiliation(s)
- Xin Yao
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Hong Chen
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Haili Qin
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Huai-Ping Cong
- Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei, 230009, China
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16
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Tian Z, Xue J, Xiao X, Du C, Liu Y. Optomagnetic Coordination Helical Robot with Shape Transformation and Multimodal Motion Capabilities. NANO LETTERS 2024; 24:2885-2893. [PMID: 38407034 DOI: 10.1021/acs.nanolett.4c00047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Soft robots with magnetic responsiveness exhibit diverse motion modes and programmable shape transformations. While the fixed magnetization configuration facilitates coupling control of robot posture and motion, it limits individual posture control to some extent. This poses a challenge in independently controlling the robot's transformation and motion, restricting its versatile applications. This research introduces a multifunctional helical robot responsive to both light and magnetism, segregating posture control from movements. Light fields assist in robot shaping, achieving a 78% maximum diameter shift. Magnetic fields guide helical robots in multimodal motions, encompassing rotation, flipping, rolling, and spinning-induced propulsion. By controlling multimodal locomotion and shape transformation on demand, helical robots gain enhanced flexibility. This innovation allows them to tightly grip and wirelessly transport designated payloads, showcasing potential applications in drug delivery, soft grippers, and chemical reaction platforms. The unique combination of structural design and control methods holds promise for intelligent robots in the future.
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Affiliation(s)
- Zhuangzhuang Tian
- Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun 130025, P. R. China
| | - Jingze Xue
- Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun 130025, P. R. China
| | - Xinze Xiao
- Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun 130025, P. R. China
| | - Chuankai Du
- Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun 130025, P. R. China
| | - Yan Liu
- Key Laboratory of Bionic Engineering (Ministry of Education), Jilin University, Changchun 130025, P. R. China
- Weihai Institute for Bionics, Jilin University, Weihai, 264402, China
- Institute of Structured and Architected Materials, Liaoning Academy of Materials, Shenyang 110167, China
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17
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Guo K, Yang X, Zhou C, Li C. Self-regulated reversal deformation and locomotion of structurally homogenous hydrogels subjected to constant light illumination. Nat Commun 2024; 15:1694. [PMID: 38402204 PMCID: PMC10894256 DOI: 10.1038/s41467-024-46100-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 02/14/2024] [Indexed: 02/26/2024] Open
Abstract
Environmentally adaptive hydrogels that are capable of reconfiguration in response to external stimuli have shown great potential toward bioinspired actuation and soft robotics. Previous efforts have focused mainly on either the sophisticated design of heterogeneously structured hydrogels or the complex manipulation of external stimuli, and achieving self-regulated reversal shape deformation in homogenous hydrogels under a constant stimulus has been challenging. Here, we report the molecular design of structurally homogenous hydrogels containing simultaneously two spiropyrans that exhibit self-regulated transient deformation reversal when subjected to constant illumination. The deformation reversal mechanism originates from the molecular sequential descending-ascending charge variation of two coexisting spiropyrans upon irradiation, resulting in a macroscale volumetric contraction-expansion of the hydrogels. Hydrogel film actuators were developed to display complex temporary bidirectional shape transformations and self-regulated reversal rolling under constant illumination. Our work represents an innovative strategy for programming complex shape transformations of homogeneous hydrogels using a single constant stimulus.
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Affiliation(s)
- Kexin Guo
- Key Laboratory of Precision and Intelligent Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, China
| | - Xuehan Yang
- Key Laboratory of Precision and Intelligent Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Chao Zhou
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, China
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, China
| | - Chuang Li
- Key Laboratory of Precision and Intelligent Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, 230026, China.
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18
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Wang Z, Chen Y, Ma Y, Wang J. Bioinspired Stimuli-Responsive Materials for Soft Actuators. Biomimetics (Basel) 2024; 9:128. [PMID: 38534813 DOI: 10.3390/biomimetics9030128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 02/16/2024] [Accepted: 02/19/2024] [Indexed: 03/28/2024] Open
Abstract
Biological species can walk, swim, fly, jump, and climb with fast response speeds and motion complexity. These remarkable functions are accomplished by means of soft actuation organisms, which are commonly composed of muscle tissue systems. To achieve the creation of their biomimetic artificial counterparts, various biomimetic stimuli-responsive materials have been synthesized and developed in recent decades. They can respond to various external stimuli in the form of structural or morphological transformations by actively or passively converting input energy into mechanical energy. They are the core element of soft actuators for typical smart devices like soft robots, artificial muscles, intelligent sensors and nanogenerators. Significant progress has been made in the development of bioinspired stimuli-responsive materials. However, these materials have not been comprehensively summarized with specific actuation mechanisms in the literature. In this review, we will discuss recent advances in biomimetic stimuli-responsive materials that are instrumental for soft actuators. Firstly, different stimuli-responsive principles for soft actuators are discussed, including fluidic, electrical, thermal, magnetic, light, and chemical stimuli. We further summarize the state-of-the-art stimuli-responsive materials for soft actuators and explore the advantages and disadvantages of using electroactive polymers, magnetic soft composites, photo-thermal responsive polymers, shape memory alloys and other responsive soft materials. Finally, we provide a critical outlook on the field of stimuli-responsive soft actuators and emphasize the challenges in the process of their implementation to various industries.
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Affiliation(s)
- Zhongbao Wang
- State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yixin Chen
- State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yuan Ma
- Department of Mechanical Engineering, Research Institute for Intelligent Wearable Systems, The Hong Kong Polytechnic University, Hong Kong 999077, China
| | - Jing Wang
- State Key Laboratory of Mechanical System and Vibration, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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19
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Blanc B, Agyapong JN, Hunter I, Galas JC, Fernandez-Nieves A, Fraden S. Collective chemomechanical oscillations in active hydrogels. Proc Natl Acad Sci U S A 2024; 121:e2313258121. [PMID: 38300869 PMCID: PMC10861864 DOI: 10.1073/pnas.2313258121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 11/14/2023] [Indexed: 02/03/2024] Open
Abstract
We report on the collective response of an assembly of chemomechanical Belousov-Zhabotinsky (BZ) hydrogel beads. We first demonstrate that a single isolated spherical BZ hydrogel bead with a radius below a critical value does not oscillate, whereas an assembly of the same BZ hydrogel beads presents chemical oscillation. A BZ chemical model with an additional flux of chemicals out of the BZ hydrogel captures the experimentally observed transition from oxidized nonoscillating to oscillating BZ hydrogels and shows this transition is due to a flux of inhibitors out of the BZ hydrogel. The model also captures the role of neighboring BZ hydrogel beads in decreasing the critical size for an assembly of BZ hydrogel beads to oscillate. We finally leverage the quorum sensing behavior of the collective to trigger their chemomechanical oscillation and discuss how this collective effect can be used to enhance the oscillatory strain of these active BZ hydrogels. These findings could help guide the eventual fabrication of a swarm of autonomous, communicating, and motile hydrogels.
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Affiliation(s)
- Baptiste Blanc
- Laboratoire Jean Perrin, Sorbonne Université, CNRS, Institut de Biologie Paris-Seine (IBPS), Paris75005, France
- Department of Condensed Matter Physics, University of Barcelona, Barcelona08028, Spain
- Department of Physics, Brandeis University, Waltham, MA02454
| | - Johnson N. Agyapong
- Department of Physics, Brandeis University, Waltham, MA02454
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, NY13244
| | - Ian Hunter
- Department of Physics, Brandeis University, Waltham, MA02454
| | - Jean-Christophe Galas
- Laboratoire Jean Perrin, Sorbonne Université, CNRS, Institut de Biologie Paris-Seine (IBPS), Paris75005, France
| | - Alberto Fernandez-Nieves
- Department of Condensed Matter Physics, University of Barcelona, Barcelona08028, Spain
- Institute of Complex Systems, University of Barcelona, Barcelona08028, Spain
- Institució Catalanade Recerca i Estudis Avançats, Barcelona08010, Spain
| | - Seth Fraden
- Department of Physics, Brandeis University, Waltham, MA02454
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20
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Wang S, Lim S, Tasmim S, Kalairaj MS, Rivera-Tarazona LK, Abdelrahman MK, Javed M, George SM, Lee YJ, Jawed MK, Ware TH. Reconfigurable Growth of Engineered Living Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2309818. [PMID: 38288578 DOI: 10.1002/adma.202309818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 01/11/2024] [Indexed: 02/10/2024]
Abstract
The growth of multicellular organisms is a process akin to additive manufacturing where cellular proliferation and mechanical boundary conditions, among other factors, drive morphogenesis. Engineers have limited ability to engineer morphogenesis to manufacture goods or to reconfigure materials comprised of biomass. Herein, a method that uses biological processes to grow and regrow magnetic engineered living materials (mELMs) into desired geometries is reported. These composites contain Saccharomyces cerevisiae and magnetic particles within a hydrogel matrix. The reconfigurable manufacturing process relies on the growth of living cells, magnetic forces, and elastic recovery of the hydrogel. The mELM then adopts a form in an external magnetic field. Yeast within the material proliferates, resulting in 259 ± 14% volume expansion. Yeast proliferation fixes the magnetic deformation, even when the magnetic field is removed. The shape fixity can be up to 99.3 ± 0.3%. The grown mELM can recover up to 73.9 ± 1.9% of the original form by removing yeast cell walls. The directed growth and recovery process can be repeated at least five times. This work enables ELMs to be processed and reprocessed into user-defined geometries without external material deposition.
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Affiliation(s)
- Suitu Wang
- Department of Materials Science and Engineering, Texas A&M University, College Station, TX, 77840, USA
| | - Sangmin Lim
- Department of Mechanical & Aerospace Engineering, University of California, Los Angeles, CA, 90095, USA
| | - Seelay Tasmim
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77840, USA
| | | | | | - Mustafa K Abdelrahman
- Department of Materials Science and Engineering, Texas A&M University, College Station, TX, 77840, USA
| | - Mahjabeen Javed
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77840, USA
| | - Sasha M George
- Department of Materials Science and Engineering, Texas A&M University, College Station, TX, 77840, USA
| | - Yoo Jin Lee
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77840, USA
| | - M Khalid Jawed
- Department of Mechanical & Aerospace Engineering, University of California, Los Angeles, CA, 90095, USA
| | - Taylor H Ware
- Department of Materials Science and Engineering, Texas A&M University, College Station, TX, 77840, USA
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77840, USA
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21
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Zhu QL, Liu W, Khoruzhenko O, Breu J, Hong W, Zheng Q, Wu ZL. Animating hydrogel knotbots with topology-invoked self-regulation. Nat Commun 2024; 15:300. [PMID: 38182606 PMCID: PMC10770334 DOI: 10.1038/s41467-023-44608-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 12/21/2023] [Indexed: 01/07/2024] Open
Abstract
Steering soft robots in a self-regulated manner remains a grand challenge, which often requires continuous symmetry breaking and recovery steps for persistent motion. Although structural morphology is found significant for robotic functions, geometric topology has rarely been considered and appreciated. Here we demonstrate a series of knotbots, namely hydrogel-based robots with knotted structures, capable of autonomous rolling and spinning/rotating motions. With symmetry broken by external stimuli and restored by self-regulation, the coupling between self-constraint-induced prestress and photothermal strain animates the knotbots continuously. Experiments and simulations reveal that nonequilibrium processes are regulated dynamically and cooperatively by self-constraints, active deformations, and self-shadowing effect of the photo-responsive gel. The active motions enable the knotbots to execute tasks including gear rotation and rod climbing. This work paves the way to devise advanced soft robots with self-regulated sustainable motions by harnessing the topology.
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Affiliation(s)
- Qing Li Zhu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 310058, Hangzhou, China
| | - Weixuan Liu
- Shenzhen Key Laboratory of Soft Mechanics & Smart Manufacturing, Department of Mechanics and Aerospace Engineering, Southern University of Science and Technology, 518055, Shenzhen, China
| | - Olena Khoruzhenko
- Bavarian Polymer Institute and Department of Chemistry, University of Bayreuth, Universitätsstrasse 30, 95440, Bayreuth, Germany
| | - Josef Breu
- Bavarian Polymer Institute and Department of Chemistry, University of Bayreuth, Universitätsstrasse 30, 95440, Bayreuth, Germany
| | - Wei Hong
- Shenzhen Key Laboratory of Soft Mechanics & Smart Manufacturing, Department of Mechanics and Aerospace Engineering, Southern University of Science and Technology, 518055, Shenzhen, China.
| | - Qiang Zheng
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 310058, Hangzhou, China.
| | - Zi Liang Wu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, 310058, Hangzhou, China.
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22
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Huang SC, Zhu YJ, Huang XY, Xia XX, Qian ZG. Programmable adhesion and morphing of protein hydrogels for underwater robots. Nat Commun 2024; 15:195. [PMID: 38172123 PMCID: PMC10764313 DOI: 10.1038/s41467-023-44564-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 12/19/2023] [Indexed: 01/05/2024] Open
Abstract
Soft robots capable of efficiently implementing tasks in fluid-immersed environments hold great promise for diverse applications. However, it remains challenging to achieve robotization that relies on dynamic underwater adhesion and morphing capability. Here we propose the construction of such robots with designer protein materials. Firstly, a resilin-like protein is complexed with polyoxometalate anions to form hydrogels that can rapidly switch between soft adhesive and stiff non-adhesive states in aqueous environments in response to small temperature variation. To realize remote control over dynamic adhesion and morphing, Fe3O4 nanoparticles are then integrated into the hydrogels to form soft robots with photothermal and magnetic responsiveness. These robots are demonstrated to undertake complex tasks including repairing artificial blood vessel, capturing and delivering multiple cargoes in water under cooperative control of infrared light and magnetic field. These findings pave an avenue for the creation of protein-based underwater robots with on-demand functionalities.
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Affiliation(s)
- Sheng-Chen Huang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People's Republic of China
| | - Ya-Jiao Zhu
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People's Republic of China
| | - Xiao-Ying Huang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People's Republic of China
| | - Xiao-Xia Xia
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People's Republic of China.
| | - Zhi-Gang Qian
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, People's Republic of China.
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23
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Xiong J, Wang X, Li L, Li Q, Zheng S, Liu Z, Li W, Yan F. Low-Hysteresis and High-Toughness Hydrogels Regulated by Porous Cationic Polymers: the Effect of Counteranions. Angew Chem Int Ed Engl 2024; 63:e202316375. [PMID: 37997003 DOI: 10.1002/anie.202316375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 11/16/2023] [Accepted: 11/23/2023] [Indexed: 11/25/2023]
Abstract
Service life and range of polymer materials is heavily reliant on their elasticity and mechanical stability under long-term loading. Slippage of chain segments under load leads to significant hysteresis of the hydrogels, limiting its repeatability and mechanical stability. Achieving the desired elasticity exceeding that of rubber is a great challenge for hydrogels, particularly when subjected to large deformations. Here, low-hysteresis and high-toughness hydrogels were developed through controllable interactions of porous cationic polymers (PCPs) with adjustable counteranions, including reversible bonding of PCP frameworks/polymer segments (polyacrylamide, PAAm) and counteranions/PAAm. This strategy reduces chain segment slippage under load, endowing the PCP-based hydrogels (PCP-gels) with good elasticity under large deformations (7 % hysteresis at a strain ratio of 40). Furthermore, due to the enlarged chain segments entanglement by PCP, the PCP-gels exhibit large strain (13000 %), significantly enhanced toughness (68 MJ m-3 ), high fracture energy (43.1 kJ m-2 ), and fatigue resistance. The unique properties of these elastic PCP-gels have promising applications in the field of flexible sensors.
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Affiliation(s)
- Jiaofeng Xiong
- Jiangsu Engineering Laboratory of Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Suzhou Key Laboratory of Soft Material and New Energy, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Xiaowei Wang
- Jiangsu Engineering Laboratory of Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Suzhou Key Laboratory of Soft Material and New Energy, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Lingling Li
- Jiangsu Engineering Laboratory of Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Suzhou Key Laboratory of Soft Material and New Energy, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Qingning Li
- Jiangsu Engineering Laboratory of Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Suzhou Key Laboratory of Soft Material and New Energy, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Sijie Zheng
- Jiangsu Engineering Laboratory of Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Suzhou Key Laboratory of Soft Material and New Energy, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Ziyang Liu
- Jiangsu Engineering Laboratory of Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Suzhou Key Laboratory of Soft Material and New Energy, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Weizheng Li
- Jiangsu Engineering Laboratory of Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Suzhou Key Laboratory of Soft Material and New Energy, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Feng Yan
- Jiangsu Engineering Laboratory of Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Suzhou Key Laboratory of Soft Material and New Energy, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
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24
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Ni C, Chen D, Wen X, Jin B, He Y, Xie T, Zhao Q. High speed underwater hydrogel robots with programmable motions powered by light. Nat Commun 2023; 14:7672. [PMID: 37996451 PMCID: PMC10667353 DOI: 10.1038/s41467-023-43576-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 11/13/2023] [Indexed: 11/25/2023] Open
Abstract
Stimuli-responsive shape-changing hydrogels are attractive candidates for use as underwater soft robots. The bottleneck lies in the low actuation speed inherently limited by the water diffusion between hydrogels and their surrounding environment. In addition, accessing complex motions is restricted by the material fabrication methods. Here we report a hitherto unknown mechanism to achieve high-speed and programmable actuations for a disulfide crosslinked thermally responsive hydrogel. The dynamic photo-activated disulfide bond exchange allows photo-mechanical programming to introduce spatio-selective network anisotropy. This gives rise to an actuation behavior dominated by thermally driven conformation change of the locally oriented polymer chains instead of the common mass-diffusion-based mechanism. With the incorporation of photothermal fillers, light-powered oscillation at frequencies as high as 1.7 Hz is realized. This, coupled with the versatility of the programming, allows access to robots with diverse high-speed motions including continuous swimming, step-wise walking, and rotating.
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Affiliation(s)
- Chujun Ni
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 310058, Hangzhou, China
| | - Di Chen
- Ningbo innovation center, Zhejiang University, 315100, Ningbo, China
| | - Xin Wen
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 310058, Hangzhou, China
| | - Binjie Jin
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 310058, Hangzhou, China
| | - Yi He
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 310058, Hangzhou, China
| | - Tao Xie
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 310058, Hangzhou, China
- Ningbo innovation center, Zhejiang University, 315100, Ningbo, China
| | - Qian Zhao
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, 310058, Hangzhou, China.
- Ningbo innovation center, Zhejiang University, 315100, Ningbo, China.
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25
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Vazquez-Perez F, Gila-Vilchez C, Leon-Cecilla A, Álvarez de Cienfuegos L, Borin D, Odenbach S, Martin JE, Lopez-Lopez MT. Fabrication and Actuation of Magnetic Shape-Memory Materials. ACS APPLIED MATERIALS & INTERFACES 2023; 15. [PMID: 37924281 PMCID: PMC10658454 DOI: 10.1021/acsami.3c14091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/20/2023] [Accepted: 10/24/2023] [Indexed: 11/06/2023]
Abstract
Soft actuators are deformable materials that change their dimensions or shape in response to external stimuli. Among the various stimuli, remote magnetic fields are one of the most attractive forms of actuation, due to their ease of use, fast response, and safety in biological systems. Composites of magnetic particles with polymer matrices are the most common materials for magnetic soft actuators. In this paper, we demonstrate the fabrication and actuation of magnetic shape-memory materials based on hydrogels containing field-structured magnetic particles. These actuators are formed by placing the pregel dispersion into a mold of the desired on-field shape and exposing it to a homogeneous magnetic field until the gel point is reached. At this point, the material may be removed from the mold and fully gelled in the desired off-field shape. The resultant magnetic shape-memory material then transitions between these two shapes when it is subjected to successive cycles of a homogeneous magnetic field, acting as a large deformation actuator. For actuators that are planar in the off-field state, this can result in significant bending to return to the on-field state. In addition, it is possible to make shape-memory materials that twist under the application of a magnetic field. For these torsional actuators, both experimental and theoretical results are given.
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Affiliation(s)
- Francisco
J. Vazquez-Perez
- Departamento
de Física Aplicada, Universidad de
Granada, C.U. Fuentenueva, Granada E-18071, Spain
- Instituto
de Investigación Biosanitaria ibs.GRANADA, Avda. de Madrid 15, Granada E-18012, Spain
| | - Cristina Gila-Vilchez
- Departamento
de Física Aplicada, Universidad de
Granada, C.U. Fuentenueva, Granada E-18071, Spain
- Instituto
de Investigación Biosanitaria ibs.GRANADA, Avda. de Madrid 15, Granada E-18012, Spain
| | - Alberto Leon-Cecilla
- Departamento
de Física Aplicada, Universidad de
Granada, C.U. Fuentenueva, Granada E-18071, Spain
- Instituto
de Investigación Biosanitaria ibs.GRANADA, Avda. de Madrid 15, Granada E-18012, Spain
| | - Luis Álvarez de Cienfuegos
- Instituto
de Investigación Biosanitaria ibs.GRANADA, Avda. de Madrid 15, Granada E-18012, Spain
- Departamento
de Química Orgánica, Unidad de Excelencia Química
Aplicada a Biomedicina y Medioambiente, Universidad de Granada, C. U. Fuentenueva, Granada E-18071, Spain
| | - Dmitry Borin
- Chair
of Magnetofluiddynamics, Measuring and Automation Technology, Technische Universität Dresden, George-Bähr-Strasse 3, Dresden 01069, Germany
| | - Stefan Odenbach
- Chair
of Magnetofluiddynamics, Measuring and Automation Technology, Technische Universität Dresden, George-Bähr-Strasse 3, Dresden 01069, Germany
| | - James E. Martin
- Sandia
National Laboratories, Albuquerque, New Mexico 87059, United States
| | - Modesto T. Lopez-Lopez
- Departamento
de Física Aplicada, Universidad de
Granada, C.U. Fuentenueva, Granada E-18071, Spain
- Instituto
de Investigación Biosanitaria ibs.GRANADA, Avda. de Madrid 15, Granada E-18012, Spain
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26
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Qian Y, Zhou P, Wang Y, Zheng Y, Luo Z, Chen L. A PEDOT:PSS/MXene-based actuator with self-powered sensing function by incorporating a photo-thermoelectric generator. RSC Adv 2023; 13:32722-32733. [PMID: 38022765 PMCID: PMC10630741 DOI: 10.1039/d3ra06290b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
Actuators with sensing functions are becoming increasingly important in the field of soft robotics. However, most of the actuators are lack of self-powered sensing ability, which limits their applications. Here, we report a light-driven actuator with self-powered sensing function, which is designed to incorporate a photo-thermoelectric generator into the actuator based on poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS)/MXene composite and polyimide. The actuator shows a large bending curvature of 1.8 cm-1 under near-infrared light (800 mW cm-2) irradiation for 10 s, which is attribute to photothermal expansion mismatch between PEDOT:PSS/MXene composite and polyimide. Simultaneously, the actuator shows enhanced thermoelectric properties with Seebeck coefficient of 35.7 μV K-1, which are mainly attributed to a combination of energy filtering effects between the PEDOT:PSS and MXene interfaces as well as the synergistic effect of its charge carrier migration. The output voltage of the actuator changes in accordance with the bending curvature, so as to achieve the self-powered sensing function and monitor the operating state of the actuator. Moreover, a bionic flower is fabricated, which not only simulates the blooming and closing of the flower, but also perceives the real-time actuation status through the output voltage signal. Finally, a smart Braille system is elaborately designed, which can not only simulate Braille characters for tactile recognition of the blind people, but also automatically output the voltage signal of Braille for self-powered sensing, enabling multi-channel output and conversion of light energy. This research proposes a new idea for exploring multifunctional actuators, integrated devices and self-powered soft robots.
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Affiliation(s)
- Yongqiang Qian
- Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, College of Physics and Energy, Fujian Normal University Fuzhou 350117 China
- Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering Fuzhou 350117 China
- Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage Fuzhou 350117 China
| | - Peidi Zhou
- Institute of Smart Marine and Engineering, Fujian University of Technology Fuzhou 350118 China
| | - Yi Wang
- Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, College of Physics and Energy, Fujian Normal University Fuzhou 350117 China
- Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering Fuzhou 350117 China
- Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage Fuzhou 350117 China
| | - Ying Zheng
- Department of Obstetrics, Fuzhou Second Hospital Fuzhou 350007 China
| | - Zhiling Luo
- Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, College of Physics and Energy, Fujian Normal University Fuzhou 350117 China
- Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering Fuzhou 350117 China
- Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage Fuzhou 350117 China
| | - Luzhuo Chen
- Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, College of Physics and Energy, Fujian Normal University Fuzhou 350117 China
- Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering Fuzhou 350117 China
- Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage Fuzhou 350117 China
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27
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Shan Y, Zhang Q, Sheng J, Stuart MCA, Qu DH, Feringa BL. Motorized Photomodulator: Making A Non-photoresponsive Supramolecular Gel Switchable by Light. Angew Chem Int Ed Engl 2023; 62:e202310582. [PMID: 37681477 DOI: 10.1002/anie.202310582] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/05/2023] [Accepted: 09/06/2023] [Indexed: 09/09/2023]
Abstract
Introducing photo-responsive molecules offers an attractive approach for remote and selective control and dynamic manipulation of material properties. However, it remains highly challenging how to use a minimal amount of photo-responsive units to optically modulate materials that are inherently inert to light irradiation. Here we show the application of a light-driven rotary molecular motor as a "motorized photo-modulator" to endow a typical H-bond-based gel system with the ability to respond to light irradiation and create a reversible sol-gel transition. The key molecular design feature is the introduction of a minimal amount (2 mol %) of molecular motors into the supramolecular network as photo-switchable non-covalent crosslinkers. Advantage is taken of the subtle interplay of the large geometry change during photo-isomerization of the molecular motor guest and the dynamic nature of a supramolecular gel host system. As a result, a tiny amount of molecular motors is enough to switch the mechanical modulus of the entire supramolecular systems. This study proves the concept of designing photo-responsive materials with minimum use of non-covalent light-absorbing units.
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Affiliation(s)
- Yahan Shan
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
- Stratingh Institute for Chemistry and Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Qi Zhang
- Stratingh Institute for Chemistry and Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Jinyu Sheng
- Stratingh Institute for Chemistry and Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Marc C A Stuart
- Stratingh Institute for Chemistry and Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Da-Hui Qu
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
| | - Ben L Feringa
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China
- Stratingh Institute for Chemistry and Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
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28
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Li X, Huang C, Wang K, Qi L, Zhang C, Zhang M, Xue Y, Cui Y, Li Y. Alkyne-to-alkene conversion in graphdiyne driving instant reversible deformation of whole carbon film. SCIENCE ADVANCES 2023; 9:eadi1690. [PMID: 37801501 PMCID: PMC10558119 DOI: 10.1126/sciadv.adi1690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 09/06/2023] [Indexed: 10/08/2023]
Abstract
The emerging field of soft robotics demands the core actuators and related responsive functional materials with rapid responsiveness and controllable accurate deformation. Here, we developed an alkyne-to-alkene chemical bond conversion way as the driving force to control ultrasensitive and instant reversible deformation of 2D carbon graphdiyne (GDY) film with an asymmetric interface design. The alkyne-to-alkene chemical bond conversion was triggered by acetone through the fast binding and release process. The as-fabricated GDY-based deformation modulator was exhibited to rapidly change shape (within 0.15 seconds) while dipped in an acetone vapor atmosphere and recover to its original form when exposed to air (recovery time < 0.01 seconds), with outstanding properties like large curvature, quick recovery time, excellent stability, and repeatability. It could mimic the movement of mosquito larvae, displaying great promise as micro bionic soft robots. Our results suggest alkyne-to-alkene bond conversion as a unique driving force for developing smart materials for areas like intelligent robotics and bionics.
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Affiliation(s)
- Xiaodong Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao 266101, P.R. China
| | - Changshui Huang
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao 266101, P.R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Kun Wang
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao 266101, P.R. China
| | - Lu Qi
- Science Center for Material Creation and Energy Conversion, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 250100, P.R. China
| | - Chunfang Zhang
- Hebei University, No. 180 Wusi Dong Road, 071002 Baoding, P.R. China
| | - Mingjia Zhang
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao 266101, P.R. China
- College of Physics and Optoelectronic Engineering, Ocean University of China, Qingdao, Shandong 266100, P.R. China
| | - Yurui Xue
- Science Center for Material Creation and Energy Conversion, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 250100, P.R. China
| | - Yanguang Cui
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, No. 189 Songling Road, Qingdao 266101, P.R. China
| | - Yuliang Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P.R. China
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29
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Zhang Y, Sun T, Zhang D, Sun S, Liu J, Li B, Zhu W, Shi Z. Study of a Multiple Responses, High Deformation, and Programmable PLA-PPC/PVA-PDA Actuator. Macromol Rapid Commun 2023; 44:e2300327. [PMID: 37595144 DOI: 10.1002/marc.202300327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/19/2023] [Indexed: 08/20/2023]
Abstract
The intelligent response actuators based on bilayer polymer can deform under the stimulation of temperature, humidity, light, and other external environment, which is the focus of research. However, achieving multiple responses, high deformation, and programmability is still one of the challenges for these actuators. Herein, a nondetachable bilayer structure, polylactic acid-polypropylene carbonate/polyvinyl alcohol-polydopamine (PLA-PPC/PVA-PDA) multiresponse programmable actuator is prepared by a simple scraping film method. Using PLA-PPC as the solvent-driven response layer, the effects of length, thickness, shape, and solvent vapor on the deformation of PLA-PPC/PVA-PDA actuators are studied. Among them, the high curvature of the film stimulated by ethyl acetate (EA) solution is 29.85 cm-1 . Using PVA-PDA as the response layer to water molecules and infrared (IR) light, the bilayer film shows excellent curling performance. Moreover, the dynamic processes of human clothing and biomimetic squid under solvent stimulation, the picture rolling motion under water molecule stimulation, the biomimetic flower blooming and merging under the synergistic of water molecules and IR light, and the deformation process of biomimetic mimosa under the competition between water molecules and IR light are simulated, which broadens the road for the development of intelligent driving materials.
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Affiliation(s)
- Yan Zhang
- Key Laboratory of Water Pollution Treatment & Resource Reuse, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan, 571158, P. R. China
| | - Tianyi Sun
- Key Laboratory of Water Pollution Treatment & Resource Reuse, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan, 571158, P. R. China
| | - Dashuai Zhang
- Key Laboratory of Water Pollution Treatment & Resource Reuse, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan, 571158, P. R. China
| | - Shishu Sun
- Key Laboratory of Water Pollution Treatment & Resource Reuse, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan, 571158, P. R. China
| | - Jinrui Liu
- Key Laboratory of Water Pollution Treatment & Resource Reuse, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan, 571158, P. R. China
| | - Bangsen Li
- Key Laboratory of Water Pollution Treatment & Resource Reuse, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan, 571158, P. R. China
| | - Wenya Zhu
- Key Laboratory of Water Pollution Treatment & Resource Reuse, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan, 571158, P. R. China
| | - Zaifeng Shi
- Key Laboratory of Water Pollution Treatment & Resource Reuse, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, Hainan, 571158, P. R. China
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30
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Feng W, Wang Z. Tailoring the Swelling-Shrinkable Behavior of Hydrogels for Biomedical Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2303326. [PMID: 37544909 PMCID: PMC10558674 DOI: 10.1002/advs.202303326] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/15/2023] [Indexed: 08/08/2023]
Abstract
Hydrogels with tailor-made swelling-shrinkable properties have aroused considerable interest in numerous biomedical domains. For example, as swelling is a key issue for blood and wound extrudates absorption, the transference of nutrients and metabolites, as well as drug diffusion and release, hydrogels with high swelling capacity have been widely applicated in full-thickness skin wound healing and tissue regeneration, and drug delivery. Nevertheless, in the fields of tissue adhesives and internal soft-tissue wound healing, and bioelectronics, non-swelling hydrogels play very important functions owing to their stable macroscopic dimension and physical performance in physiological environment. Moreover, the negative swelling behavior (i.e., shrinkage) of hydrogels can be exploited to drive noninvasive wound closure, and achieve resolution enhancement of hydrogel scaffolds. In addition, it can help push out the entrapped drugs, thus promote drug release. However, there still has not been a general review of the constructions and biomedical applications of hydrogels from the viewpoint of swelling-shrinkable properties. Therefore, this review summarizes the tactics employed so far in tailoring the swelling-shrinkable properties of hydrogels and their biomedical applications. And a relatively comprehensive understanding of the current progress and future challenge of the hydrogels with different swelling-shrinkable features is provided for potential clinical translations.
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Affiliation(s)
- Wenjun Feng
- MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou310058China
| | - Zhengke Wang
- MOE Key Laboratory of Macromolecular Synthesis and FunctionalizationDepartment of Polymer Science and EngineeringZhejiang UniversityHangzhou310058China
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31
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Wang X, Gao Y, Ma X, Li W, Yang W. A Bionic Venus Flytrap Soft Microrobot Driven by Multiphysics for Intelligent Transportation. Biomimetics (Basel) 2023; 8:429. [PMID: 37754180 PMCID: PMC10526311 DOI: 10.3390/biomimetics8050429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 09/15/2023] [Accepted: 09/15/2023] [Indexed: 09/28/2023] Open
Abstract
With the continuous integration of material science and bionic technology, as well as increasing requirements for the operation of robots in complex environments, researchers continue to develop bionic intelligent microrobots, the development of which will cause a great revolution in daily life and productivity. In this study, we propose a bionic flower based on the PNIPAM-PEGDA bilayer structure. PNIPAM is temperature-responsive and solvent-responsive, thus acting as an active layer, while PEGDA does not change significantly in response to a change in temperature and solvent, thus acting as a rigid layer. The bilayer flower is closed in cold water and gradually opens under laser illumination. In addition, the flower gradually opens after injecting ethanol into the water. When the volume of ethanol exceeds the volume of water, the flower opens completely. In addition, we propose a bionic Venus flytrap soft microrobot with a bilayer structure. The robot is temperature-responsive and can reversibly transform from a 2D sheet to a 3D tubular structure. It is normally in a closed state in both cold (T < 32 °C) and hot water (T > 32 °C), and can be used to load and transport objects to the target position (magnetic field strength < 1 T).
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Affiliation(s)
- Xiaowen Wang
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China; (X.W.); (Y.G.); (X.M.)
| | - Yingnan Gao
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China; (X.W.); (Y.G.); (X.M.)
| | - Xiaoyang Ma
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China; (X.W.); (Y.G.); (X.M.)
| | - Weiqiang Li
- School of Accounting, Shandong Youth University of Political Science, Jinan 250000, China
| | - Wenguang Yang
- School of Electromechanical and Automotive Engineering, Yantai University, Yantai 264005, China; (X.W.); (Y.G.); (X.M.)
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32
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Lee Y, Koehler F, Dillon T, Loke G, Kim Y, Marion J, Antonini MJ, Garwood I, Sahasrabudhe A, Nagao K, Zhao X, Fink Y, Roche ET, Anikeeva P. Magnetically Actuated Fiber-Based Soft Robots. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2301916. [PMID: 37269476 PMCID: PMC10526629 DOI: 10.1002/adma.202301916] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/13/2023] [Indexed: 06/05/2023]
Abstract
Broad adoption of magnetic soft robotics is hampered by the sophisticated field paradigms for their manipulation and the complexities in controlling multiple devices. Furthermore, high-throughput fabrication of such devices across spatial scales remains challenging. Here, advances in fiber-based actuators and magnetic elastomer composites are leveraged to create 3D magnetic soft robots controlled by unidirectional fields. Thermally drawn elastomeric fibers are instrumented with a magnetic composite synthesized to withstand strains exceeding 600%. A combination of strain and magnetization engineering in these fibers enables programming of 3D robots capable of crawling or walking in magnetic fields orthogonal to the plane of motion. Magnetic robots act as cargo carriers, and multiple robots can be controlled simultaneously and in opposing directions using a single stationary electromagnet. The scalable approach to fabrication and control of magnetic soft robots invites their future applications in constrained environments where complex fields cannot be readily deployed.
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Affiliation(s)
- Youngbin Lee
- Department of Materials Science and Engineering, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
- Research Laboratory of Electronics, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
| | - Florian Koehler
- Research Laboratory of Electronics, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
| | - Tom Dillon
- Department of Mechanical Engineering, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
| | - Gabriel Loke
- Department of Materials Science and Engineering, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
- Research Laboratory of Electronics, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
| | - Yoonho Kim
- Department of Mechanical Engineering, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
| | - Juliette Marion
- Department of Materials Science and Engineering, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
- Research Laboratory of Electronics, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
| | - Marc-Joseph Antonini
- Research Laboratory of Electronics, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
| | - Indie Garwood
- Harvard/MIT Health Science & Technology Graduate Program; Cambridge, MA 02139, USA
| | - Atharva Sahasrabudhe
- Research Laboratory of Electronics, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
- McGovern Institute for Brain Research, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
- Department of Chemistry, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
| | - Keisuke Nagao
- Department of Materials Science and Engineering, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
- Research Laboratory of Electronics, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
| | - Xuanhe Zhao
- Department of Mechanical Engineering, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
| | - Yoel Fink
- Department of Materials Science and Engineering, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
- Research Laboratory of Electronics, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
- Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
| | - Ellen T. Roche
- Department of Mechanical Engineering, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
| | - Polina Anikeeva
- Department of Materials Science and Engineering, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
- Research Laboratory of Electronics, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
- McGovern Institute for Brain Research, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
- Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology; Cambridge, MA 02139, USA
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33
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Darmawan BA, Park JO, Go G, Choi E. Four-Dimensional-Printed Microrobots and Their Applications: A Review. MICROMACHINES 2023; 14:1607. [PMID: 37630143 PMCID: PMC10456732 DOI: 10.3390/mi14081607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/11/2023] [Accepted: 08/13/2023] [Indexed: 08/27/2023]
Abstract
Owing to their small size, microrobots have many potential applications. In addition, four-dimensional (4D) printing facilitates reversible shape transformation over time or upon the application of stimuli. By combining the concept of microrobots and 4D printing, it may be possible to realize more sophisticated next-generation microrobot designs that can be actuated by applying various stimuli, and also demonstrates profound implications for various applications, including drug delivery, cells delivery, soft robotics, object release and others. Herein, recent advances in 4D-printed microrobots are reviewed, including strategies for facilitating shape transformations, diverse types of external stimuli, and medical and nonmedical applications of microrobots. Finally, to conclude the paper, the challenges and the prospects of 4D-printed microrobots are highlighted.
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Affiliation(s)
- Bobby Aditya Darmawan
- Korea Institute of Medical Microrobotics, 43-26, Cheomdangwagi-ro 208-beon-gil, Buk-gu, Gwangju 61011, Republic of Korea; (B.A.D.); (J.-O.P.)
| | - Jong-Oh Park
- Korea Institute of Medical Microrobotics, 43-26, Cheomdangwagi-ro 208-beon-gil, Buk-gu, Gwangju 61011, Republic of Korea; (B.A.D.); (J.-O.P.)
| | - Gwangjun Go
- Korea Institute of Medical Microrobotics, 43-26, Cheomdangwagi-ro 208-beon-gil, Buk-gu, Gwangju 61011, Republic of Korea; (B.A.D.); (J.-O.P.)
- Department of Mechanical Engineering, Chosun University, 309 Pilmun-daero, Dong-gu, Gwangju 61452, Republic of Korea
| | - Eunpyo Choi
- Korea Institute of Medical Microrobotics, 43-26, Cheomdangwagi-ro 208-beon-gil, Buk-gu, Gwangju 61011, Republic of Korea; (B.A.D.); (J.-O.P.)
- School of Mechanical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
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34
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Yang Y, Li C, Palmer LC, Stupp SI. Autonomous hydrogel locomotion regulated by light and electric fields. SCIENCE ADVANCES 2023; 9:eadi4566. [PMID: 37531426 PMCID: PMC10396299 DOI: 10.1126/sciadv.adi4566] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 06/28/2023] [Indexed: 08/04/2023]
Abstract
Autonomous robotic functions in materials beyond simple stimulus-response actuation require the development of functional soft matter that can complete well-organized tasks without step-by-step control. We report the design of photo- and electroactivated hydrogels that can capture and deliver cargo, avoid obstacles, and return without external, stepwise control. By incorporating two spiropyran monomers with different chemical substituents in the hydrogel, we created chemically random networks that enabled photoregulated charge reversal and autonomous behaviors under a constant electric field. In addition, using perturbations in the electric field induced by a dielectric inhomogeneity, the hydrogel could be attracted to high dielectric constant materials and autonomously bypasses the low dielectric constant materials under the guidance of the electric field vector. The photo- and electroactive hydrogels investigated here can autonomously perform tasks using constant external stimuli, an encouraging observation for the potential development of molecularly designed intelligent robotic materials.
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Affiliation(s)
- Yang Yang
- Center for Bio-Inspired Energy Science, Northwestern University, Evanston, IL 60208, USA
| | - Chuang Li
- Center for Bio-Inspired Energy Science, Northwestern University, Evanston, IL 60208, USA
| | - Liam C Palmer
- Center for Bio-Inspired Energy Science, Northwestern University, Evanston, IL 60208, USA
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
| | - Samuel I Stupp
- Center for Bio-Inspired Energy Science, Northwestern University, Evanston, IL 60208, USA
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
- Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL 60611, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA
- Department of Medicine, Northwestern University, Chicago, IL 60611, USA
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35
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Morozova SM, Gevorkian A, Kumacheva E. Design, characterization and applications of nanocolloidal hydrogels. Chem Soc Rev 2023. [PMID: 37464914 DOI: 10.1039/d3cs00387f] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
Nanocolloidal gels (NCGs) are an emerging class of soft matter, in which nanoparticles act as building blocks of the colloidal network. Chemical or physical crosslinking enables NCG synthesis and assembly from a broad range of nanoparticles, polymers, and low-molecular weight molecules. The synergistic properties of NCGs are governed by nanoparticle composition, dimensions and shape, the mechanism of nanoparticle bonding, and the NCG architecture, as well as the nature of molecular crosslinkers. Nanocolloidal gels find applications in soft robotics, bioengineering, optically active coatings and sensors, optoelectronic devices, and absorbents. This review summarizes currently scattered aspects of NCG formation, properties, characterization, and applications. We describe the diversity of NCG building blocks, discuss the mechanisms of NCG formation, review characterization techniques, outline NCG fabrication and processing methods, and highlight most common NCG applications. The review is concluded with the discussion of perspectives in the design and development of NCGs.
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Affiliation(s)
- Sofia M Morozova
- N.E. Bauman Moscow State Technical University, 5/1 2-nd Baumanskaya street, 105005, Moscow, Russia
- Department of Chemistry University of Toronto, 80 Saint George street, Toronto, Ontario M5S 3H6, Canada.
| | - Albert Gevorkian
- Department of Chemistry University of Toronto, 80 Saint George street, Toronto, Ontario M5S 3H6, Canada.
| | - Eugenia Kumacheva
- Department of Chemistry University of Toronto, 80 Saint George street, Toronto, Ontario M5S 3H6, Canada.
- Department of Chemical Engineering and Applied Chemistry University of Toronto, 200 College street, Toronto, Ontario M5S 3E5, Canada
- The Institute of Biomaterials and Biomedical Engineering University of Toronto, 4 Taddle Creek Road, Toronto, Ontario M5S 3G9, Canada
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36
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Askari-Sedeh M, Baghani M. pH-Sensitive Hydrogel Bilayers: Investigation on Transient Swelling-Induced Bending through Analytical and FEM Approaches. Gels 2023; 9:563. [PMID: 37504442 PMCID: PMC10379676 DOI: 10.3390/gels9070563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/02/2023] [Accepted: 07/04/2023] [Indexed: 07/29/2023] Open
Abstract
pH-responsive hydrogels are recognized as versatile sensors and actuators due to their unique time-dependent properties. Specifically, pH-sensitive hydrogel-based bilayers exhibit remarkable bending capabilities when exposed to pH-triggered swelling. This study introduces a semi-analytical technique that combines non-linear solid mechanics with ionic species transport to investigate the bending behavior of such bilayers. The technique is validated through numerical simulations, exploring the influence of kinetic and geometric properties on bilayer behavior. The results highlight the significance of the interfacial region, particularly in configurations with lower hydrogel geometric ratios, which are susceptible to rupture. The study also uncovers the benefits of a lower hydrogel layer ratio in improving the swelling rate and final deflection, with a stronger effect observed in the presence of a buffer solution. Additionally, the compressibility of the elastomer contributes to the durability of the final bent shape. These findings enhance our understanding of pH-sensitive hydrogel-based bilayers and offer valuable insights for their design and optimization in diverse applications.
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Affiliation(s)
- Mahdi Askari-Sedeh
- School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran 14399-57131, Iran
| | - Mostafa Baghani
- School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran 14399-57131, Iran
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37
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Yan J, Zhang Y, Liu Z, Wang J, Xu J, Yu L. Ultracompact single-nanowire-morphed grippers driven by vectorial Lorentz forces for dexterous robotic manipulations. Nat Commun 2023; 14:3786. [PMID: 37355640 DOI: 10.1038/s41467-023-39524-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 06/16/2023] [Indexed: 06/26/2023] Open
Abstract
Ultracompact and soft pairwise grippers, capable of swift large-amplitude multi-dimensional maneuvering, are widely needed for high-precision manipulation, assembly and treatment of microscale objects. In this work, we demonstrate the simplest construction of such robotic structures, shaped via a single-nanowire-morphing and powered by geometry-tailored Lorentz vectorial forces. This has been accomplished via a designable folding growth of ultralong and ultrathin silicon NWs into single and nested omega-ring structures, which can then be suspended upon electrode frames and coated with silver metal layer to carry a passing current along geometry-tailored pathway. Within a magnetic field, the grippers can be driven by the Lorentz forces to demonstrate swift large-amplitude maneuvers of grasping, flapping and twisting of microscale objects, as well as high-frequency or even resonant vibrations to overcome sticky van de Waals forces in microscale for a reliable releasing of carried payloads. More sophisticated and functional teamwork of mutual alignment, precise passing and selective light-emitting-diode unit testing and installation were also successfully accomplished via pairwise gripper collaborations. This single-nanowire-morphing strategy provides an ideal platform to rapidly design, construct and prototype a wide range of advanced ultracompact nanorobotic, mechanical sensing and biological manipulation functionalities.
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Affiliation(s)
- Jiang Yan
- School of Electronic Science and Engineering, National Laboratory of Solid-State Microstructures, Nanjing University, 210023, Nanjing, China
| | - Ying Zhang
- School of Electronic Science and Engineering, National Laboratory of Solid-State Microstructures, Nanjing University, 210023, Nanjing, China
| | - Zongguang Liu
- School of Electronic Science and Engineering, National Laboratory of Solid-State Microstructures, Nanjing University, 210023, Nanjing, China.
| | - Junzhuan Wang
- School of Electronic Science and Engineering, National Laboratory of Solid-State Microstructures, Nanjing University, 210023, Nanjing, China
| | - Jun Xu
- School of Electronic Science and Engineering, National Laboratory of Solid-State Microstructures, Nanjing University, 210023, Nanjing, China
| | - Linwei Yu
- School of Electronic Science and Engineering, National Laboratory of Solid-State Microstructures, Nanjing University, 210023, Nanjing, China.
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38
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Jiang J, Xu S, Ma H, Li C, Huang Z. Photoresponsive hydrogel-based soft robot: A review. Mater Today Bio 2023; 20:100657. [PMID: 37229213 PMCID: PMC10205512 DOI: 10.1016/j.mtbio.2023.100657] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/13/2023] [Accepted: 05/03/2023] [Indexed: 05/27/2023] Open
Abstract
Soft robots have received a lot of attention because of their great human-robot interaction and environmental adaptability. Most soft robots are currently limited in their applications due to wired drives. Photoresponsive soft robotics is one of the most effective ways to promote wireless soft drives. Among the many soft robotics materials, photoresponsive hydrogels have received a lot of attention due to their good biocompatibility, ductility, and excellent photoresponse properties. This paper visualizes and analyzes the research hotspots in the field of hydrogels using the literature analysis tool Citespace, demonstrating that photoresponsive hydrogel technology is currently a key research direction. Therefore, this paper summarizes the current state of research on photoresponsive hydrogels in terms of photochemical and photothermal response mechanisms. The progress of the application of photoresponsive hydrogels in soft robots is highlighted based on bilayer, gradient, orientation, and patterned structures. Finally, the main factors influencing its application at this stage are discussed, including the development directions and insights. Advancement in photoresponsive hydrogel technology is crucial for its application in the field of soft robotics. The advantages and disadvantages of different preparation methods and structures should be considered in different application scenarios to select the best design scheme.
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Affiliation(s)
- Jingang Jiang
- Key Laboratory of Advanced Manufacturing and Intelligent Technology, Ministry of Education, Harbin University of Science and Technology, Harbin, 150080, Heilongjiang, PR China
| | - Shuainan Xu
- Key Laboratory of Advanced Manufacturing and Intelligent Technology, Ministry of Education, Harbin University of Science and Technology, Harbin, 150080, Heilongjiang, PR China
| | - Hongyuan Ma
- Key Laboratory of Advanced Manufacturing and Intelligent Technology, Ministry of Education, Harbin University of Science and Technology, Harbin, 150080, Heilongjiang, PR China
- Harbin Branch of Taili Communication Technology Limited, China Electronics Technology Group Corporation, Harbin, 150080, Heilongjiang, PR China
| | - Changpeng Li
- Key Laboratory of Advanced Manufacturing and Intelligent Technology, Ministry of Education, Harbin University of Science and Technology, Harbin, 150080, Heilongjiang, PR China
| | - Zhiyuan Huang
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, 150001, Heilongjiang, PR China
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39
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Zeng Z, Li Z, Li Q, Song G, Huo M. Strong and Tough Nanostructured Hydrogels and Organogels Prepared by Polymerization-Induced Self-Assembly. SMALL METHODS 2023; 7:e2201592. [PMID: 36965093 DOI: 10.1002/smtd.202201592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 02/20/2023] [Indexed: 06/09/2023]
Abstract
In nature, the hierarchical structure of biological tissues endows them with outstanding mechanics and elaborated functions. However, it remains a great challenge to construct biomimetic hydrogels with well-defined nanostructures and good mechanical properties. Herein, polymerization-induced self-assembly (PISA) is for the first time exploited as a general strategy for nanostructured hydrogels and organogels with tailored nanodomains and outstanding mechanical properties. As a proof-of-concept, PISA of BAB triblock copolymer is used to fabricate hydrogels with precisely regulated spherical nanodomains. These nanostructured hydrogels are strong, tough, stretchable, and recoverable, with mechanical properties correlating to their nanostructure. The outstanding mechanical properties are ascribed to the unique network architecture, where the entanglements of the hydrophilic chains act as slip links that transmit the tension to the micellar crosslinkers, while the micellar crosslinkers dissipate the energy via reversible deformation and irreversible detachment of the constituting polymers. The general feasibility of the PISA strategy toward nanostructured gels is confirmed by the successful fabrication of nanostructured hydrogels, alcogels, poly(ethylene glycol) gels, and ionogels with various PISA formulations. This work has provided a general platform for the design and fabrication of biomimetic hydrogels and organogels with tailorable nanostructures and mechanics and will inspire the design of functional nanostructured gels.
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Affiliation(s)
- Zhong Zeng
- Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
| | - Ziyun Li
- Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
| | - Qili Li
- Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
| | - Guangjie Song
- CAS Key Laboratory of Engineering Plastics and CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China
| | - Meng Huo
- Key Laboratory of Surface and Interface Science of Polymer Materials of Zhejiang Province, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
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40
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Rey M, Volpe G, Volpe G. Light, Matter, Action: Shining Light on Active Matter. ACS PHOTONICS 2023; 10:1188-1201. [PMID: 37215318 PMCID: PMC10197137 DOI: 10.1021/acsphotonics.3c00140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/04/2023] [Accepted: 04/04/2023] [Indexed: 05/24/2023]
Abstract
Light carries energy and momentum. It can therefore alter the motion of objects on the atomic to astronomical scales. Being widely available, readily controllable, and broadly biocompatible, light is also an ideal tool to propel microscopic particles, drive them out of thermodynamic equilibrium, and make them active. Thus, light-driven particles have become a recent focus of research in the field of soft active matter. In this Perspective, we discuss recent advances in the control of soft active matter with light, which has mainly been achieved using light intensity. We also highlight some first attempts to utilize light's additional properties, such as its wavelength, polarization, and momentum. We then argue that fully exploiting light with all of its properties will play a critical role in increasing the level of control over the actuation of active matter as well as the flow of light itself through it. This enabling step will advance the design of soft active matter systems, their functionalities, and their transfer toward technological applications.
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Affiliation(s)
- Marcel Rey
- Physics
Department, University of Gothenburg, 41296 Gothenburg, Sweden
| | - Giovanni Volpe
- Physics
Department, University of Gothenburg, 41296 Gothenburg, Sweden
| | - Giorgio Volpe
- Department
of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ London, United Kingdom
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41
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Zhu Y, Haghniaz R, Hartel MC, Mou L, Tian X, Garrido PR, Wu Z, Hao T, Guan S, Ahadian S, Kim HJ, Jucaud V, Dokmeci MR, Khademhosseini A. Recent Advances in Bioinspired Hydrogels: Materials, Devices, and Biosignal Computing. ACS Biomater Sci Eng 2023; 9:2048-2069. [PMID: 34784170 PMCID: PMC10823919 DOI: 10.1021/acsbiomaterials.1c00741] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The remarkable ability of biological systems to sense and adapt to complex environmental conditions has inspired new materials and novel designs for next-generation wearable devices. Hydrogels are being intensively investigated for their versatile functions in wearable devices due to their superior softness, biocompatibility, and rapid stimulus response. This review focuses on recent strategies for developing bioinspired hydrogel wearable devices that can accommodate mechanical strain and integrate seamlessly with biological systems. We will provide an overview of different types of bioinspired hydrogels tailored for wearable devices. Next, we will discuss the recent progress of bioinspired hydrogel wearable devices such as electronic skin and smart contact lenses. Also, we will comprehensively summarize biosignal readout methods for hydrogel wearable devices as well as advances in powering and wireless data transmission technologies. Finally, current challenges facing these wearable devices are discussed, and future directions are proposed.
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Affiliation(s)
- Yangzhi Zhu
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Reihaneh Haghniaz
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Martin C Hartel
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, California 90095, United States
| | - Lei Mou
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Xinyu Tian
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Pamela Rosario Garrido
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
- Department of Electric and Electronic Engineering, Technological Institute of Merida, Merida, Yucatan 97118, Mexico
| | - Zhuohong Wu
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Taige Hao
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Shenghan Guan
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, California 90089, United States
| | - Samad Ahadian
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Han-Jun Kim
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Vadim Jucaud
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Mehmet R Dokmeci
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
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42
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Shu S, Wang Z, Chen P, Zhong J, Tang W, Wang ZL. Machine-Learning Assisted Electronic Skins Capable of Proprioception and Exteroception in Soft Robotics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2211385. [PMID: 36750731 DOI: 10.1002/adma.202211385] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 02/01/2023] [Indexed: 05/05/2023]
Abstract
Inspired by natural biological systems, soft robots have recently been developed, showing tremendous potential in real-world applications because of their intrinsic softness and deformability. The confluence of electronic skins and machine learning is extensively studied to create effective biomimetic robotic systems. Based on a differential piezoelectric matrix, this study presents a shape-sensing electronic skin (SSES) that can recognize surface conformations with minimal interference from pressing, stretching, or other surrounding stimuli. It is then integrated with soft robots to reconstruct their shape during movement, serving as a proprioceptive sense. Additionally, the robot can utilize machine learning to identify various terrains, demonstrating exteroception and pointing toward more advanced autonomous robots capable of performing real-world tasks in challenging environments.
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Affiliation(s)
- Sheng Shu
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ziming Wang
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Pengfei Chen
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Junwen Zhong
- Department of Electromechanical Engineering, Centre for Artificial Intelligence and Robotics University of Macau, Macao, 999078, China
| | - Wei Tang
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Zhong Lin Wang
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, 100083, P. R. China
- Georgia Institute of Technology, Atlanta, GA, 30332-0245, USA
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43
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Lopez-Rios H, Olvera de la Cruz M. Ink that mimics the colour of incoming light. Nature 2023; 617:467-468. [PMID: 37198306 DOI: 10.1038/d41586-023-01582-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
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44
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Basu A, Okello LB, Castellanos N, Roh S, Velev OD. Assembly and manipulation of responsive and flexible colloidal structures by magnetic and capillary interactions. SOFT MATTER 2023; 19:2466-2485. [PMID: 36946137 DOI: 10.1039/d3sm00090g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The long-ranged interactions induced by magnetic fields and capillary forces in multiphasic fluid-particle systems facilitate the assembly of a rich variety of colloidal structures and materials. We review here the diverse structures assembled from isotropic and anisotropic particles by independently or jointly using magnetic and capillary interactions. The use of magnetic fields is one of the most efficient means of assembling and manipulating paramagnetic particles. By tuning the field strength and configuration or by changing the particle characteristics, the magnetic interactions, dynamics, and responsiveness of the assemblies can be precisely controlled. Concurrently, the capillary forces originating at the fluid-fluid interfaces can serve as means of reconfigurable binding in soft matter systems, such as Pickering emulsions, novel responsive capillary gels, and composites for 3D printing. We further discuss how magnetic forces can be used as an auxiliary parameter along with the capillary forces to assemble particles at fluid interfaces or in the bulk. Finally, we present examples how these interactions can be used jointly in magnetically responsive foams, gels, and pastes for 3D printing. The multiphasic particle gels for 3D printing open new opportunities for making of magnetically reconfigurable and "active" structures.
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Affiliation(s)
- Abhirup Basu
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC 27695, USA.
| | - Lilian B Okello
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC 27695, USA.
| | - Natasha Castellanos
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC 27695, USA.
| | - Sangchul Roh
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC 27695, USA.
| | - Orlin D Velev
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC 27695, USA.
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45
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Dhatt-Gauthier K, Livitz D, Wu Y, Bishop KJM. Accelerating the Design of Self-Guided Microrobots in Time-Varying Magnetic Fields. JACS AU 2023; 3:611-627. [PMID: 37006772 PMCID: PMC10052236 DOI: 10.1021/jacsau.2c00499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 02/23/2023] [Accepted: 02/24/2023] [Indexed: 06/19/2023]
Abstract
Mobile robots combine sensory information with mechanical actuation to move autonomously through structured environments and perform specific tasks. The miniaturization of such robots to the size of living cells is actively pursued for applications in biomedicine, materials science, and environmental sustainability. Existing microrobots based on field-driven particles rely on knowledge of the particle position and the target destination to control particle motion through fluid environments. Often, however, these external control strategies are challenged by limited information and global actuation where a common field directs multiple robots with unknown positions. In this Perspective, we discuss how time-varying magnetic fields can be used to encode the self-guided behaviors of magnetic particles conditioned on local environmental cues. Programming these behaviors is framed as a design problem: we seek to identify the design variables (e.g., particle shape, magnetization, elasticity, stimuli-response) that achieve the desired performance in a given environment. We discuss strategies for accelerating the design process using automated experiments, computational models, statistical inference, and machine learning approaches. Based on the current understanding of field-driven particle dynamics and existing capabilities for particle fabrication and actuation, we argue that self-guided microrobots with potentially transformative capabilities are close at hand.
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46
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Shit A, Singh S, Ibukun OJ, Gumtya M, Haldar D. α,ε-Hybrid Peptide-Stabilized Magnetic Nanoparticle-Coated Paper-Based Actuators. ACS OMEGA 2023; 8:8712-8721. [PMID: 36910952 PMCID: PMC9996580 DOI: 10.1021/acsomega.2c08092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
The development of α,ε-hybrid peptide-stabilized magnetic nanoparticles and their application to fabricate a paper-based actuator has been reported. From single-crystal diffraction analysis, the nitropeptide 2 has an extended structure with a trans geometry. The one-pot in situ multiple oxidation-reduction reaction of a synthetic nitropeptide solution in ammonium hydroxide and FeCl2 leads to the formation of Fe3O4 nanoparticles. The reduction reaction replaces the nitro group with an amine group, which finally acts as capping agent for the stabilization of the Fe3O4 nanoparticles. Paper-based soft magneto machines with multivariant actuation modes such as contraction-expansion, bending, and uplifting locomotion have been studied. The device has potential as controllable paper-based soft robots.
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Affiliation(s)
- Ananda Shit
- Department
of Chemical Sciences, Indian Institute of
Science Education and Research Kolkata, Mohanpur, West Bengal 741246, India
| | - Surajit Singh
- Department
of Chemical Sciences, Indian Institute of
Science Education and Research Kolkata, Mohanpur, West Bengal 741246, India
| | - Olamilekan Joseph Ibukun
- Department
of Chemical Sciences, Indian Institute of
Science Education and Research Kolkata, Mohanpur, West Bengal 741246, India
| | - Milan Gumtya
- Department
of Chemical Sciences, Indian Institute of
Science Education and Research Kolkata, Mohanpur, West Bengal 741246, India
| | - Debasish Haldar
- Department
of Chemical Sciences, Indian Institute of
Science Education and Research Kolkata, Mohanpur, West Bengal 741246, India
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47
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Shan T, Zheng K, Fei J, Li C, He H, Shi Y, Ma M, Chen S, Gao L, Wang X. Modulus watch: In situ determination of the gel modulus by timing the fluorescence color change. J Colloid Interface Sci 2023; 640:656-661. [PMID: 36893532 DOI: 10.1016/j.jcis.2023.01.133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 01/24/2023] [Accepted: 01/28/2023] [Indexed: 02/18/2023]
Abstract
The gel modulus, a key parameter for gel materials, is traditionally determined by cumbersome rheometer. Recently, probe technologies occur to meet the requirements of in situ determination. Till now, in situ and quantitatively testing of gel materials with unabridged structure informations still remains a challenge. Here, we provide a facile, in situ approach to determine the gel modulus, by timing the aggregation of a doped fluorescence probe. The probe shows green emission during aggregation and shifts to blue once it forms aggregates. The higher modulus of the gel, the longer probe's aggregation time. Furthermore, a quantitative correlation of gel modulus with the aggregation time is established. The in situ method not only facilitates the scientific researches in the field of gels, but also provides a new approach for spatiotemporal materials.
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Affiliation(s)
- Tianyu Shan
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Kai Zheng
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Junhao Fei
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Chao Li
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China; Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, China
| | - Huiwen He
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yanqin Shi
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Meng Ma
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Si Chen
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Longcheng Gao
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China; Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, China.
| | - Xu Wang
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou 310014, China.
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48
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Jin JN, Yang XR, Wang YF, Zhao LM, Yang LP, Huang L, Jiang W. Mechanical Training Enabled Reinforcement of Polyrotaxane-Containing Hydrogel. Angew Chem Int Ed Engl 2023; 62:e202218313. [PMID: 36583510 DOI: 10.1002/anie.202218313] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 12/29/2022] [Accepted: 12/30/2022] [Indexed: 12/31/2022]
Abstract
Many strategies have been developed for constructing anisotropic hydrogels, however, it remains a challenge to fabricate hydrogels with anisotropic nanocrystalline domains from intrinsically soft networks. Here, we report a naphthotube-based polyrotaxane-containing hydrogel that can be reinforced via mechanical training. During the training process, the hydrogel can adopt reorientation of polymer chains to form anisotropic structures driven by external uniaxial force. Due to the multiple hydrogen bonding sites and movable feature of naphthotube, the sliding of naphthotube on PEG chains simultaneously inducing the zipping of adjacent polymer chains to form densely anisotropic nanocrystalline domains through hydrogen bonded networks. Thus, the trained hydrogel exhibits an enhanced tension stress of ≈110 kPa, which realize a remarkable enhancement of ≈10 times compare to initial state. This study provides a new tactic for improving the mechanical performance of soft materials.
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Affiliation(s)
- Jia-Ni Jin
- Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, and Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Xi-Ran Yang
- Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, and Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Yan-Fang Wang
- Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, and Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Lei-Min Zhao
- Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, and Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Liu-Pan Yang
- Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, and Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Liping Huang
- Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, and Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
| | - Wei Jiang
- Shenzhen Grubbs Institute, Guangdong Provincial Key Laboratory of Catalysis, and Department of Chemistry, Southern University of Science and Technology, Xueyuan Blvd 1088, Shenzhen, 518055, China
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49
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Hou Y, Dai Y, Zhang W, Wang M, Zhao H, Feng L. Ultrasound-Based Real-Time Imaging of Hydrogel-Based Millirobots with Volume Change Capability. MICROMACHINES 2023; 14:422. [PMID: 36838121 PMCID: PMC9959195 DOI: 10.3390/mi14020422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/25/2023] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
Soft-bodied robots driven by external fields have better environmental adaptability, extending their applications. Nature also provides lots of inspiration for shape-morphing robot development, for example, larvae and jellyfish. This paper presents magnetically propelled hydrogel-based millirobots with volume changeability. The millirobot can be imaged in real time in a completely enclosed space with an ultrasound imaging system. Firstly, a custom-designed magnetic generating system with six square coils was introduced to generate a uniform field to propel the robot. The robot was fabricated using hydrogel with a thickness of around 300 μm. After programmable magnetization, the robot could change its shape and move using the rotating magnetic field. With the near-infrared illumination, the robot could shrink and could recover when the illumination stopped. Even when the robot shrank, it could be propelled by the external field, showing its potential usage in complex environments. Moreover, the posture information of the robot including the position and shape could be obtained in real time using ultrasound image technology.
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Affiliation(s)
- Yaxin Hou
- Department of Diagnostic Ultrasound, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Yuguo Dai
- Department of Mechanical Engineering, The University of Tokyo, Tokyo 113-8656, Japan
| | - Wei Zhang
- Department of Materials Science and Engineering, College of Design and Engineering, National University of Singapore, Singapore 117583, Singapore
| | - Minghui Wang
- NO. 1 Outpatient Department of Xi Cheng District, Beijing Garrison, Beijing 100055, China
| | - Hanxue Zhao
- Department of Diagnostic Ultrasound, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Lin Feng
- School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100083, China
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50
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Hao XP, Zhang CW, Hong W, Meng M, Hou LX, Du M, Zheng Q, Wu ZL. Engineering viscoelastic mismatch for temporal morphing of tough supramolecular hydrogels. MATERIALS HORIZONS 2023; 10:432-442. [PMID: 36606414 DOI: 10.1039/d2mh01339h] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Viscoelasticity is a generic characteristic of soft biotissues and polymeric materials, endowing them with unique time- and rate-dependent properties. Here, by spatiotemporally tailoring the viscoelasticity in tough supramolecular hydrogels, we demonstrate reprogrammable morphing of the gels based on differential viscoelastic recovery processes that lead to internal strain mismatch. The spatial heterogeneity of viscoelasticity is encoded through integrating dissimilar hydrogels or by site-specific treatment of a singular hydrogel. The temporal morphing behavior of tough gels, including a fast deformation process and then a slow shape-recovery process, is related to the kinetics of associative interactions and the entropic elasticity of supramolecular networks after pre-stretching and release, which takes place spontaneously in the absence of external stimuli. Such a kinetically driven morphing mechanism resolves the trade-off between the mechanical robustness and shape-changing speed in tough hydrogels with dense entanglements and physical associations, and should be applicable to other viscoelastic materials. A numerical theory for the temporal morphing of tough supramolecular gels has been formulated by dynamic coupling of viscoelastic recovery and mechanics of deformations, which is further implemented to predict the sophisticated morphed structures. Furthermore, magnetic particles are incorporated into the morphed tough hydrogels to devise versatile soft actuators and robots for specific applications.
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Affiliation(s)
- Xing Peng Hao
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Chuan Wei Zhang
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Wei Hong
- Department of Mechanics and Aerospace Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Meng Meng
- Design Informatics, Edinburgh College of Art, University of Edinburgh, Edinburgh, EH8 9JS, UK
| | - Li Xin Hou
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Miao Du
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Qiang Zheng
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
| | - Zi Liang Wu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
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