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Wu J, Chen T, Wang Y, Bai J, Lao C, Luo M, Chen M, Peng W, Zhi W, Weng J, Wang J. Piezoelectric Effect of Antibacterial Biomimetic Hydrogel Promotes Osteochondral Defect Repair. Biomedicines 2022; 10:biomedicines10051165. [PMID: 35625903 PMCID: PMC9138878 DOI: 10.3390/biomedicines10051165] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/30/2022] [Accepted: 05/09/2022] [Indexed: 12/10/2022] Open
Abstract
The lack of vascular tissue and the low metabolism and biological activity of mature chondrocytes lead to the low regeneration ability of articular cartilage. People try to solve this problem through various methods, but the effect is not very ideal. Inspired by the piezoelectric effect of collagen in cartilage tissue, this work focused on the design of a biomimetic hydrogel by introducing piezoelectric materials and silver nanowires into hydrogel to endow them with piezoelectric and antibacterial properties to promote tissue regeneration. Additionally, the mechanical and swelling properties of the material were adjusted to match natural articular cartilage. Based on bionic principles, a double-layer piezoelectric hydrogel was prepared and applied for the repair of osteochondral defects. An enhanced repair effect of osteochondral defects has been seen, which has demonstrated potential values for future application in bionics principle- and piezoelectric effect-based osteochondral tissue engineering. Furthermore, piezoelectric effect-induced degradation was observed. These results fully indicated the positive effect of the piezoelectric effect on promoting the regeneration of osteochondral tissue and in vivo degradation of materials.
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Affiliation(s)
- Jiahang Wu
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China; (J.W.); (T.C.); (Y.W.); (J.B.); (C.L.); (M.L.); (M.C.); (W.Z.); (J.W.)
| | - Taijun Chen
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China; (J.W.); (T.C.); (Y.W.); (J.B.); (C.L.); (M.L.); (M.C.); (W.Z.); (J.W.)
| | - Yingying Wang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China; (J.W.); (T.C.); (Y.W.); (J.B.); (C.L.); (M.L.); (M.C.); (W.Z.); (J.W.)
| | - Jiafan Bai
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China; (J.W.); (T.C.); (Y.W.); (J.B.); (C.L.); (M.L.); (M.C.); (W.Z.); (J.W.)
| | - Chenwen Lao
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China; (J.W.); (T.C.); (Y.W.); (J.B.); (C.L.); (M.L.); (M.C.); (W.Z.); (J.W.)
| | - Minyue Luo
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China; (J.W.); (T.C.); (Y.W.); (J.B.); (C.L.); (M.L.); (M.C.); (W.Z.); (J.W.)
| | - Mingxia Chen
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China; (J.W.); (T.C.); (Y.W.); (J.B.); (C.L.); (M.L.); (M.C.); (W.Z.); (J.W.)
| | - Wenzhen Peng
- Chengdu Yikeda Biotechnology Co., Ltd., Chengdu 610095, China;
| | - Wei Zhi
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China; (J.W.); (T.C.); (Y.W.); (J.B.); (C.L.); (M.L.); (M.C.); (W.Z.); (J.W.)
| | - Jie Weng
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China; (J.W.); (T.C.); (Y.W.); (J.B.); (C.L.); (M.L.); (M.C.); (W.Z.); (J.W.)
| | - Jianxin Wang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China; (J.W.); (T.C.); (Y.W.); (J.B.); (C.L.); (M.L.); (M.C.); (W.Z.); (J.W.)
- Correspondence: ; Tel.: +86-28-87634023
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Sun P, Ma C, Chen Y, Liu H. Flexible Conducting Composite Film with Reversible In-Plane Folding-Unfolding Property. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:e2102314. [PMID: 34390231 PMCID: PMC8529486 DOI: 10.1002/advs.202102314] [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: 06/02/2021] [Revised: 07/01/2021] [Indexed: 06/13/2023]
Abstract
Flexible conducting films in the forms of bendability or stretchability are developed as a key component to enable soft electronics. With the requirements of miniaturization and portability of modern electronics, conducting film that can endure in-plane shrinkage is urgently needed but still remains challenging. Here, a new type of conducting film achieving reversible in-plane folding-unfolding function with large deformation by infusing conductive liquids into hierarchically structured polymer films consisting of both nanostructured polymer nanofibers and microstructured frames is reported. Nanostructured polymer nanofibers that can be completely wetted by the conductive liquids provide capillary forces to gain reversible in-plane folding-unfolding property, while the microstructured frames greatly enhance the extent during folding-unfolding process. Conductivity of the produced films can be significantly improved by rationally tuning the composition of infused conductive liquids, which always keeps high values during the folding-unfolding deformation. It is believed that this work may serve as the basis for robust fabrication of flexible conducting films with reversible in-plane folding-unfolding function, and can also put one-step forward of modern soft electronics.
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Affiliation(s)
- Peiru Sun
- School of Chemistry and Chemical EngineeringYantai UniversityYantai264005P. R. China
- School of Metallurgy and Materials EngineeringChongqing University of Science and TechnologyChongqing401331P. R. China
| | - Chuao Ma
- College of ChemistryJilin UniversityChangchun130012P. R. China
| | - Yong Chen
- School of Metallurgy and Materials EngineeringChongqing University of Science and TechnologyChongqing401331P. R. China
| | - Hongliang Liu
- School of Chemistry and Chemical EngineeringYantai UniversityYantai264005P. R. China
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Wang F, Zhang C, Wan X. Carbon Nanotubes-Coated Conductive Elastomer: Electrical and Near Infrared Light Dual-Stimulated Shape Memory, Self-Healing, and Wearable Sensing. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.0c06050] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Fei Wang
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Cheng Zhang
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Xuejuan Wan
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, PR China
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Shen Z, Chen F, Zhu X, Yong KT, Gu G. Stimuli-responsive functional materials for soft robotics. J Mater Chem B 2020; 8:8972-8991. [PMID: 32901646 DOI: 10.1039/d0tb01585g] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Functional materials have spurred the advancement of soft robotics with the potential to perform safe interactions and adaptative functions in unstructured environments. The responses of functional materials under external stimuli lend themselves to programmable actuation and sensing, opening up new possibilities of robot design with built-in mechanical intelligence and unlocking new applications. Here, we review the development of stimuli-responsive functional materials particularly used for soft robotic systems. This review covers five representative types of soft stimuli-responsive functional materials, namely (i) dielectric elastomers, (ii) hydrogels, (iii) shape memory polymers, (iv) liquid crystal elastomers, and (v) magnetic materials, with focuses on their inherent material properties, working mechanisms, and design strategies for actuation and sensing. We also highlight the state-of-the-art applications of soft stimuli-responsive functional materials in locomotion robots, grippers and sensors. Finally, we summarize the current challenges and map out future trends for engineering next-generation functional materials for soft robotics.
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Affiliation(s)
- Zequn Shen
- Robotics Institute, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China. and State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Feifei Chen
- Robotics Institute, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China. and State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiangyang Zhu
- Robotics Institute, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China. and State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Ken-Tye Yong
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore.
| | - Guoying Gu
- Robotics Institute, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China. and State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, China
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