1
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Zou J, Lin Z, Zhan L, Qin Y, Sun Q, Ji N, Xie F. A short linear glucan nanocomposite hydrogel formed by in situ self-assembly with highly elastic, fatigue-resistant and self-recovery. Carbohydr Polym 2024; 340:122241. [PMID: 38858016 DOI: 10.1016/j.carbpol.2024.122241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/30/2024] [Accepted: 05/06/2024] [Indexed: 06/12/2024]
Abstract
Polyacrylamide (PAM) hydrogels are widely used in wide-ranging applications in biology, medicine, pharmaceuticals and environmental sectors. However, achieving the requisite mechanical properties, fatigue resistance, self-recovery, biocompatibility, and biodegradability remains a challenge. Herein, we present a facile method to construct a nanocomposite hydrogel by integrating short linear glucan (SLG), obtained by debranching waxy corn starch, into a PAM network through self-assembly. The resulting composite hydrogel with 10 % SLG content exhibited satisfactory stretchability (withstanding over 1200 % strain), along with maximum compressive and shear strengths of about 490 kPa and 39 kPa at 90 % deformation, respectively. The hydrogel demonstrated remarkable resilience and could endure repeated compression and stretching. Notably, the nanocomposite hydrogel with 10 % SLG content exhibited full stress recovery at 90 % compression deformation after 20 s, without requiring specific environmental conditions, achieving an energy dissipation recovery rate of 98 %. Meanwhile, these hydrogels exhibited strong adhesion to various soft and hard substrates, including skin, glasses and metals. Furthermore, they maintain solid integrity at both 37 °C and 50 °C after swelling equilibrium, unlike traditional PAM hydrogels, which exhibited softening under similar conditions. We hope that this PAM-SLG hydrogel will open up new avenues for the development of multifunctional electronic devices, offering enhanced performance and versatility.
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Affiliation(s)
- Jinling Zou
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China; Qingdao Special Food Research Institute, Qingdao 266109, China
| | - Zhiwei Lin
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China; Qingdao Special Food Research Institute, Qingdao 266109, China
| | - Linjie Zhan
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China; Qingdao Special Food Research Institute, Qingdao 266109, China
| | - Yang Qin
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China; Qingdao Special Food Research Institute, Qingdao 266109, China
| | - Qingjie Sun
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China; Qingdao Special Food Research Institute, Qingdao 266109, China
| | - Na Ji
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China; Qingdao Special Food Research Institute, Qingdao 266109, China.
| | - Fengwei Xie
- Department of Chemical Engineering, University of Bath, Bath BA2 7AY, UK
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2
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Zhou L, Zhao B, Liang J, Lu F, Yang W, Xu J, Zheng J, Liu Y, Wang R, Liu Z. Low hysteresis, water retention, anti-freeze multifunctional hydrogel strain sensor for human-machine interfacing and real-time sign language translation. MATERIALS HORIZONS 2024; 11:3856-3866. [PMID: 38776065 DOI: 10.1039/d4mh00126e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/13/2024]
Abstract
Hydrogel strain sensors have received increasing attention due to their potential applications in human-machine interfaces and flexible electronics. However, they usually suffer from both mechanical and electrical hysteresis and poor water retention, which limit their practical applications. To address this challenge, a poly(acrylic acid-co-acrylamide) hydrogel crosslinked by silica nanoparticles is fabricated via photo polymerization and salting-out of hydrophilic ions for the strain sensor. The resulting hydrogel strain sensor possessed low electrical hysteresis (1.6%), low mechanical hysteresis (<7%), high cycle stability (>10 000 cycles), high durability, water retention and anti-freezing ability. Moreover, this strain sensor can be used as a wearable sensor for real-time control of robotic hands and hand gesture recognition. Finally, a sign language translation system has been demonstrated with the aid of machine learning, achieving recognition rates of over 98% for 15 different sign languages. This work offers a promising prospect for human-machine interfaces, smart wearable devices, and the Internet of Things.
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Affiliation(s)
- Lijuan Zhou
- School of Textile Science and Engineering, Tiangong University, 399 West Binshui Road, Tianjin 300387, China.
| | - Bin Zhao
- School of Artificial Intelligence, Guangxi Colleges and Universities Key Laboratory of AI Algorithm Engineering, Guilin University of Electronic Technology, Guilin Guangxi, 541004, China
| | - Jingye Liang
- School of Textile Science and Engineering, Tiangong University, 399 West Binshui Road, Tianjin 300387, China.
| | - Fangying Lu
- School of Textile Science and Engineering, Tiangong University, 399 West Binshui Road, Tianjin 300387, China.
| | - Weiping Yang
- School of Textile Science and Engineering, Tiangong University, 399 West Binshui Road, Tianjin 300387, China.
| | - Jishuai Xu
- School of Textile Science and Engineering, Tiangong University, 399 West Binshui Road, Tianjin 300387, China.
| | - Jingxuan Zheng
- School of Textile Science and Engineering, Tiangong University, 399 West Binshui Road, Tianjin 300387, China.
| | - Yong Liu
- School of Textile Science and Engineering, Tiangong University, 399 West Binshui Road, Tianjin 300387, China.
| | - Run Wang
- School of Textile Science and Engineering, Tiangong University, 399 West Binshui Road, Tianjin 300387, China.
| | - Zunfeng Liu
- State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Functional Polymer Materials, College of Chemistry Frontiers Science Center for New Organic Matter, Nankai University, 94 Weijin Road, Tianjin 300071, China
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Fang YH, Liang C, Liljeström V, Lv ZP, Ikkala O, Zhang H. Toughening Hydrogels with Fibrillar Connected Double Networks. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2402282. [PMID: 38577824 DOI: 10.1002/adma.202402282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 03/19/2024] [Indexed: 04/06/2024]
Abstract
Biological tissues, such as tendons or cartilage, possess high strength and toughness with very low plastic deformations. In contrast, current strategies to prepare tough hydrogels commonly utilize energy dissipation mechanisms based on physical bonds that lead to irreversible large plastic deformations, thus limiting their load-bearing applications. This article reports a strategy to toughen hydrogels using fibrillar connected double networks (fc-DN), which consist of two distinct but chemically interconnected polymer networks, that is, a polyacrylamide network and an acrylated agarose fibril network. The fc-DN design allows efficient stress transfer between the two networks and high fibril alignment during deformation, both contributing to high strength and toughness, while the chemical crosslinking ensures low plastic deformations after undergoing high strains. The mechanical properties of the fc-DN network can be readily tuned to reach an ultimate tensile strength of 8 MPa and a toughness of above 55 MJ m-3, which is 3 and 3.5 times more than that of fibrillar double network hydrogels without chemical connections, respectively. The application potential of the fc-DN hydrogel is demonstrated as load-bearing damping material for a jointed robotic lander. The fc-DN design provides a new toughening mechanism for hydrogels that can be used for soft robotics or bioelectronic applications.
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Affiliation(s)
- Yu-Huang Fang
- Department of Applied Physics, Aalto University, P.O. Box 15100, Espoo, 02150, Finland
| | - Chen Liang
- Department of Applied Physics, Aalto University, P.O. Box 15100, Espoo, 02150, Finland
| | - Ville Liljeström
- Nanomicroscopy Center, OtaNano, Aalto University, P.O. Box 15100, Espoo, 02150, Finland
| | - Zhong-Peng Lv
- Department of Applied Physics, Aalto University, P.O. Box 15100, Espoo, 02150, Finland
| | - Olli Ikkala
- Department of Applied Physics, Aalto University, P.O. Box 15100, Espoo, 02150, Finland
| | - Hang Zhang
- Department of Applied Physics, Aalto University, P.O. Box 15100, Espoo, 02150, Finland
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4
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Wang S, Liu J, Zhou L, Xu H, Zhang D, Zhang X, Wang Q, Zhou Q. Research progresses on mitochondrial-targeted biomaterials for bone defect repair. Regen Biomater 2024; 11:rbae082. [PMID: 39055307 PMCID: PMC11272180 DOI: 10.1093/rb/rbae082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 05/23/2024] [Accepted: 06/15/2024] [Indexed: 07/27/2024] Open
Abstract
In recent years, the regulation of the cell microenvironment has opened up new avenues for bone defect repair. Researchers have developed novel biomaterials to influence the behavior of osteoblasts and immune cells by regulating the microenvironment, aiming to achieve efficient bone repair. Mitochondria, as crucial organelles involved in energy conversion, biosynthesis and signal transduction, play a vital role in maintaining bone integrity. Dysfunction of mitochondria can have detrimental effects on the transformation of the immune microenvironment and the differentiation of stem cells, thereby hindering bone tissue regeneration. Consequently, targeted therapy strategies focusing on mitochondria have emerged. This approach offers a wide range of applications and reliable therapeutic effects, thereby providing a new treatment option for complex and refractory bone defect diseases. In recent studies, more biomaterials have been used to restore mitochondrial function and promote positive cell differentiation. The main directions are mitochondrial energy metabolism, mitochondrial biogenesis and mitochondrial quality control. In this review, we investigated the biomaterials used for mitochondria-targeted treatment of bone defect repair in recent years from the perspective of progress and strategies. We also summarized the micro-molecular mechanisms affected by them. Through discussions on energy metabolism, oxidative stress regulation and autophagy regulation, we emphasized the opportunities and challenges faced by mitochondria-targeted biomaterials, providing vital clues for developing a new generation of bone repair materials.
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Affiliation(s)
- Shuze Wang
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang 110001, China
| | - Jialin Liu
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang 110001, China
| | - Linxi Zhou
- Department of Orthodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai 200011, China
- National Center for Stomatology, Shanghai 200011, China
- National Clinical Research Center for Oral Diseases, Shanghai 200011, China
- Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - Hao Xu
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang 110001, China
| | - Dan Zhang
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang 110001, China
| | - Xing Zhang
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Qiang Wang
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang 110001, China
| | - Qing Zhou
- Liaoning Provincial Key Laboratory of Oral Diseases, School and Hospital of Stomatology, China Medical University, Shenyang 110001, China
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5
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Gao ZQ, Liu CH, Zhang SL, Li SH, Gao LW, Chai RL, Zhou TY, Ma XJ, Li X, Li S, Zhao J, Zhao Q. Lanternarene-Based Self-Sorting Double-Network Hydrogels for Flexible Strain Sensors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2404231. [PMID: 38943438 DOI: 10.1002/smll.202404231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 06/21/2024] [Indexed: 07/01/2024]
Abstract
Conductive flexible hydrogels have attracted immense attentions recently due to their wide applications in wearable sensors. However, the poor mechanical properties of most conductive polymer limit their utilizations. Herein, a double network hydrogel is fabricated via a self-sorting process with cationic polyacrylamide as the first flexible network and the lantern[33]arene-based hydrogen organic framework nanofibers as the second rigid network. This hydrogel is endowed with good conductivity (0.25 S m-1) and mechanical properties, such as large Young's modulus (31.9 MPa), fracture elongation (487%) and toughness (6.97 MJ m-3). The stretchability of this hydrogel is greatly improved after the kirigami cutting, which makes it can be used as flexible strain sensor for monitoring human motions, such as bending of fingers, wrist and elbows. This study not only provides a valuable strategy for the construction of double network hydrogels by lanternarene, but also expands the application of the macrocycle hydrogels to flexible electronics.
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Affiliation(s)
- Zi-Qi Gao
- College of Sciences, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin, 300457, P. R. China
| | - Chuan-Hong Liu
- College of Sciences, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin, 300457, P. R. China
| | - Shuang-Long Zhang
- College of Sciences, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin, 300457, P. R. China
| | - Sheng-Hua Li
- Tianjin R&D Biotechnology Co., Ltd., Tianjin, 300456, P. R. China
| | - Li-Wei Gao
- College of Sciences, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin, 300457, P. R. China
| | - Rui-Lin Chai
- College of Sciences, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin, 300457, P. R. China
| | - Tuo-Yu Zhou
- College of Sciences, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin, 300457, P. R. China
| | - Xu-Juan Ma
- College of Sciences, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin, 300457, P. R. China
| | - Xin Li
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, P. R. China
| | - Shibo Li
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin, 300382, P. R. China
| | - Jin Zhao
- College of Sciences, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin, 300457, P. R. China
| | - Qian Zhao
- College of Sciences, College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, Tianjin, 300457, P. R. China
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Tang J, Zhang Y, Qi C, Li B, Wu Y, Ma S, Ma Y, Yu Q, Yang W, Xi P, Yu B, Zhou F. Robust and Lubricating Interface Semi-Interpenetrating Network on Inert Polymer Substrates Enabled by Subsurface-Initiated Polymerization. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403303. [PMID: 39031810 DOI: 10.1002/smll.202403303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 05/30/2024] [Indexed: 07/22/2024]
Abstract
Lubricating hydrogel coatings on inert rubber and plastic surfaces significantly reduce friction and wear, thus enhancing material durability and lifespan. However, achieving optimal hydration lubrication typically requires a porous polymer network, which unfortunately reduces their mechanical strength and limits their applicability where robust durability and wear-resistance are essential. In the research, a hydrogel coating with remarkable wear resistance and surface stability is developed by forming a semi-interpenetrating polymer network with polymer substrate at the interface. By employing a good solvent swelling method, monomers, and photoinitiators are embedded within the substrates' subsurface, followed by in situ polymerization under ultraviolet light, creating a robust semi-interpenetrating and entangled network structure. This approach, offering a thicker energy-dissipating layer, outperforms traditional surface modifications in wear resistance while preserving anti-fatigue, hydrophilicity, oleophobicity, and other properties. Adaptable to various rubber and plastic substrates by using suitable solvents, this method provides an efficient solution for creating durable, lubricating surfaces, broadening the potential applications in multiple industries.
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Affiliation(s)
- Jie Tang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yunlei Zhang
- RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Changmin Qi
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bin Li
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Yang Wu
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Shuanhong Ma
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Yanfei Ma
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Qiangliang Yu
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Wufang Yang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Pinxian Xi
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Bo Yu
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - Feng Zhou
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
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7
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Tang J, Liang H, Ren A, Ma L, Hao W, Yao Y, Zheng L, Li H, Li Q. Mechanical Performance of Copper-Nanocluster-Polymer Nanolattices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2400080. [PMID: 38553432 DOI: 10.1002/adma.202400080] [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: 03/26/2024] [Indexed: 04/06/2024]
Abstract
A type of copper-nanocluster-polymer composites is reported and showcased that their 3D nanolattices exhibit a superior combination of high strength, toughness, deformability, resilience, and damage-tolerance. Notably, the strength and toughness of ultralight copper-nanocluster-polymer nanolattices in some cases surpass current best performers, including alumina, nickel, and other ceramic or metallic lattices at low densities. Additionally, copper-nanocluster-polymer nanolattices are super-resilient, crack-resistant, and one-step printed under ambient condition which can be easily integrated into sophisticated microsystems as highly effective internal protectors. The findings suggest that, unlike traditional nanocomposites, the laser-induced interface and the high fraction of ultrasmall Cu15 nanoclusters as crosslinking junctions contribute to the marked nonlinear elasticity of copper-nanocluster-polymer network, which synergizes with the lattice-topology effect and culminates in the exceptional mechanical performance.
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Affiliation(s)
- Jin Tang
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Heyi Liang
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, 60637, USA
| | - An Ren
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Liang Ma
- State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Wei Hao
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Yuqing Yao
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Letian Zheng
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Hanying Li
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Qi Li
- 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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8
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Wang ZD, Bo K, Zhong CL, Xin YH, Lu GL, Sun H, Liang S, Liu ZN, Zang HY. Multifunctional Polyoxometalates-Based Ionohydrogels toward Flexible Electronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2400099. [PMID: 38481340 DOI: 10.1002/adma.202400099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 03/06/2024] [Indexed: 03/20/2024]
Abstract
Multifunctional flexible electronics present tremendous opportunities in the rapidly evolving digital age. One potential avenue to realize this goal is the integration of polyoxometalates (POMs) and ionic liquid-based gels (ILGs), but the challenge of macrophase separation due to poor compatibility, especially caused by repulsion between like-charged units, poses a significant hurdle. Herein, the possibilities of producing diverse and homogenous POMs-containing ionohydrogels by nanoconfining POMs and ionic liquids (ILs) within an elastomer-like polyzwitterionic hydrogel using a simple one-step random copolymerization method, are expanded vastly. The incorporation of polyzwitterions provides a nanoconfined microenvironment and effectively modulates excessive electrostatic interactions in POMs/ILs/H2O blending system, facilitating a phase transition from macrophase separation to a submillimeter scale worm-like microphase-separation system. Moreover, combining POMs-reinforced ionohydrogels with a developed integrated self-powered sensing system utilizing strain sensors and Zn-ion hybrid supercapacitors has enabled efficient energy storage and detection of external strain changes with high precision. This work not only provides guidelines for manipulating morphology within phase-separation gelation systems, but also paves the way for developing versatile POMs-based ionohydrogels for state-of-the-art smart flexible electronics.
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Affiliation(s)
- Zhi-Da Wang
- Key Laboratory of Bionic Engineering of the Ministry of Education, College of Biological and Agricultural Engineering, Jilin University, Changchun, 130022, P. R. China
| | - Kai Bo
- Key Laboratory of Bionic Engineering of the Ministry of Education, College of Biological and Agricultural Engineering, Jilin University, Changchun, 130022, P. R. China
| | - Chen-Long Zhong
- Key Laboratory of Bionic Engineering of the Ministry of Education, College of Biological and Agricultural Engineering, Jilin University, Changchun, 130022, P. R. China
| | - Yu-Hang Xin
- Key Laboratory of Bionic Engineering of the Ministry of Education, College of Biological and Agricultural Engineering, Jilin University, Changchun, 130022, P. R. China
| | - Guo-Long Lu
- Key Laboratory of Bionic Engineering of the Ministry of Education, College of Biological and Agricultural Engineering, Jilin University, Changchun, 130022, P. R. China
| | - Hang Sun
- Key Laboratory of Bionic Engineering of the Ministry of Education, College of Biological and Agricultural Engineering, Jilin University, Changchun, 130022, P. R. China
| | - Song Liang
- Key Laboratory of Bionic Engineering of the Ministry of Education, College of Biological and Agricultural Engineering, Jilin University, Changchun, 130022, P. R. China
| | - Zhen-Ning Liu
- Key Laboratory of Bionic Engineering of the Ministry of Education, College of Biological and Agricultural Engineering, Jilin University, Changchun, 130022, P. R. China
| | - Hong-Ying Zang
- Key Laboratory of Polyoxometalate Science of the Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China
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9
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Wang XQ, Xie AQ, Cao P, Yang J, Ong WL, Zhang KQ, Ho GW. Structuring and Shaping of Mechanically Robust and Functional Hydrogels toward Wearable and Implantable Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2309952. [PMID: 38389497 DOI: 10.1002/adma.202309952] [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: 09/25/2023] [Revised: 02/16/2024] [Indexed: 02/24/2024]
Abstract
Hydrogels possess unique features such as softness, wetness, responsiveness, and biocompatibility, making them highly suitable for biointegrated applications that have close interactions with living organisms. However, conventional man-made hydrogels are usually soft and brittle, making them inferior to the mechanically robust biological hydrogels. To ensure reliable and durable operation of biointegrated wearable and implantable devices, mechanical matching and shape adaptivity of hydrogels to tissues and organs are essential. Recent advances in polymer science and processing technologies have enabled mechanical engineering and shaping of hydrogels for various biointegrated applications. In this review, polymer network structuring strategies at micro/nanoscales for toughening hydrogels are summarized, and representative mechanical functionalities that exist in biological materials but are not easily achieved in synthetic hydrogels are further discussed. Three categories of processing technologies, namely, 3D printing, spinning, and coating for fabrication of tough hydrogel constructs with complex shapes are reviewed, and the corresponding hydrogel toughening strategies are also highlighted. These developments enable adaptive fabrication of mechanically robust and functional hydrogel devices, and promote application of hydrogels in the fields of biomedical engineering, bioelectronics, and soft robotics.
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Affiliation(s)
- Xiao-Qiao Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - An-Quan Xie
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Pengle Cao
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Jian Yang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Wei Li Ong
- Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore, 117583, Singapore
| | - Ke-Qin Zhang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Ghim Wei Ho
- Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore, 117583, Singapore
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10
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Xiong J, Duan M, Zou X, Gao S, Guo J, Wang X, Li Q, Li W, Wang X, Yan F. Biocompatible Tough Ionogels with Reversible Supramolecular Adhesion. J Am Chem Soc 2024; 146:13903-13913. [PMID: 38721817 DOI: 10.1021/jacs.4c01758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/23/2024]
Abstract
Cohesive and interfacial adhesion energies are difficult to balance to obtain reversible adhesives with both high mechanical strength and high adhesion strength, although various methods have been extensively investigated. Here, a biocompatible citric acid/L-(-)-carnitine (CAC)-based ionic liquid was developed as a solvent to prepare tough and high adhesion strength ionogels for reversible engineered and biological adhesives. The prepared ionogels exhibited good mechanical properties, including tensile strength (14.4 MPa), Young's modulus (48.1 MPa), toughness (115.2 MJ m-3), and high adhesion strength on the glass substrate (24.4 MPa). Furthermore, the ionogels can form mechanically matched tough adhesion at the interface of wet biological tissues (interfacial toughness about 191 J m-2) and can be detached by saline solution on demand, thus extending potential applications in various clinical scenarios such as wound adhesion and nondestructive transfer of organs.
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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
| | - Minzhi Duan
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Xiuyang Zou
- School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Shuna Gao
- 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
| | - Jiangna Guo
- 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
| | - 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
| | - 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
| | - Xiaoliang Wang
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, 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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11
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Wu Q, Chen A, Xu Y, Han S, Zhang J, Chen Y, Hang J, Yang X, Guan L. Multiple physical crosslinked highly adhesive and conductive hydrogels for human motion and electrophysiological signal monitoring. SOFT MATTER 2024; 20:3666-3675. [PMID: 38623704 DOI: 10.1039/d4sm00195h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Hydrogel-based flexible electronic devices serve as a next-generation bridge for human-machine interaction and find extensive applications in clinical therapy, military equipment, and wearable devices. However, the mechanical mismatch between hydrogels and human tissues, coupled with the failure of conformal interfaces, hinders the transmission of information between living organisms and flexible devices, which resulted in the instability and low fidelity of signals, especially in the acquisition of electromyographic (EMG) and electrocardiographic (ECG) signals. In this study, we designed an ion-conductive hydrogel (ICHgel) utilizing multiple physical interactions, successfully applied for human motion monitoring and the collection of epidermal physiological signals. By incorporating fumed silica (F-SiO2) nanoparticles and calcium chloride into an interpenetrating network (IPN) composed of polyvinyl alcohol (PVA) and polyacrylamide (AAm)/acrylic acid (AA) chains, the ICHgel exhibited exceptional tunable stretchability (>1450% strain) and conductivity (10.58 ± 0.85 S m-1). Additionally, the outstanding adhesion of the ICHgel proved to be a critical factor for effective communication between epidermal tissues and flexible devices. Demonstrating its capability to acquire stable electromechanical signals, the ICHgel was attached to different parts of the human body. More importantly, as a flexible electrode, the ICHgel outperformed commercial Ag/AgCl electrodes in the collection of ECG and EMG signals. In summary, the synthesized ICHgel with its outstanding conformal interface capabilities and mechanical adaptability paves the way for enhanced human-machine interaction, fostering the development of flexible electronic devices.
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Affiliation(s)
- Qirui Wu
- School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, Fujian, P.R. China
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350108, Fujian, P.R. China.
| | - Anbang Chen
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350108, Fujian, P.R. China.
| | - Yidan Xu
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei 230000, Anhui, P.R. China
| | - Songjiu Han
- School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, Fujian, P.R. China
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350108, Fujian, P.R. China.
| | - Jiayu Zhang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350108, Fujian, P.R. China.
| | - Yujia Chen
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350108, Fujian, P.R. China.
| | - Jianren Hang
- School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, Fujian, P.R. China
| | - Xiaoxiang Yang
- School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, Fujian, P.R. China
| | - Lunhui Guan
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350108, Fujian, P.R. China.
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12
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Gao S, Rao Y, Wang X, Zhang Q, Zhang Z, Wang Y, Guo J, Yan F. Chlorella-Loaded Antibacterial Microneedles for Microacupuncture Oxygen Therapy of Diabetic Bacterial Infected Wounds. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2307585. [PMID: 38307004 DOI: 10.1002/adma.202307585] [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: 07/29/2023] [Revised: 01/29/2024] [Indexed: 02/04/2024]
Abstract
Hypoxia and infection are urgent clinical problems in chronic diabetic wounds. Herein, living Chlorella-loaded poly(ionic liquid)-based microneedles (PILMN-Chl) are constructed for microacupuncture oxygen and antibacterial therapy against methicillin-resistant Staphylococcus aureus (MRSA)-infected chronic diabetic wounds. The PILMN-Chl can stably and continuously produce oxygen for more than 30 h due to the photosynthesis of the loaded self-supported Chlorella. By combining the barrier penetration capabilities of microneedles, the continuous and sufficient oxygen supply of Chlorella, and the sterilization activities of PIL, the PILMN-Chl can accelerate chronic diabetic wounds in vivo by topical targeted sterilization and hypoxia relief in deep parts of wounds. Thus, the self-oxygen produced microneedles modality may provide a promising and facile therapeutic strategy for treating chronic, hypoxic, and infected diabetic wounds.
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Affiliation(s)
- Shuna Gao
- 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
| | - Yu Rao
- 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
| | - Qiuyang Zhang
- 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
| | - Zijun Zhang
- 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
| | - Yuxuan 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
| | - Jiangna Guo
- 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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13
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Wang M, Dickey MD. Tear-resistant stretchy gels. NATURE MATERIALS 2024; 23:29-30. [PMID: 38129576 DOI: 10.1038/s41563-023-01764-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Affiliation(s)
- Meixiang Wang
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA
| | - Michael D Dickey
- Department of Chemical and Biomolecular Engineering, North Carolina State University, Raleigh, NC, USA.
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