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Feng H, Chen Z, Li L, Shao X, Fan W, Wang C, Song L, Matyjaszewski K, Pan X, Wang Z. Aerobic mechanochemical reversible-deactivation radical polymerization. Nat Commun 2024; 15:6179. [PMID: 39039089 PMCID: PMC11263483 DOI: 10.1038/s41467-024-50562-z] [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: 10/05/2023] [Accepted: 07/15/2024] [Indexed: 07/24/2024] Open
Abstract
Polymer materials suffer mechano-oxidative deterioration or degradation in the presence of molecular oxygen and mechanical forces. In contrast, aerobic biological activities combined with mechanical stimulus promote tissue regeneration and repair in various organs. A synthetic approach in which molecular oxygen and mechanical energy synergistically initiate polymerization will afford similar robustness in polymeric materials. Herein, aerobic mechanochemical reversible-deactivation radical polymerization was developed by the design of an organic mechano-labile initiator which converts oxygen into activators in response to ball milling, enabling the reaction to proceed in the air with low-energy input, operative simplicity, and the avoidance of potentially harmful organic solvents. In addition, this approach not only complements the existing methods to access well-defined polymers but also has been successfully employed for the controlled polymerization of (meth)acrylates, styrenic monomers and solid acrylamides as well as the synthesis of polymer/perovskite hybrids without solvent at room temperature which are inaccessible by other means.
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Affiliation(s)
- Haoyang Feng
- Frontiers Science Center for Flexible Electronics (FSCFE) & Institute of Flexible Electronics (IFE), Northwestern Polytechnical University, Xi'an, 710072, China
| | - Zhe Chen
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Lei Li
- Frontiers Science Center for Flexible Electronics (FSCFE) & Institute of Flexible Electronics (IFE), Northwestern Polytechnical University, Xi'an, 710072, China
| | - Xiaoyang Shao
- Frontiers Science Center for Flexible Electronics (FSCFE) & Institute of Flexible Electronics (IFE), Northwestern Polytechnical University, Xi'an, 710072, China
| | - Wenru Fan
- Frontiers Science Center for Flexible Electronics (FSCFE) & Institute of Flexible Electronics (IFE), Northwestern Polytechnical University, Xi'an, 710072, China
| | - Chen Wang
- Frontiers Science Center for Flexible Electronics (FSCFE) & Institute of Flexible Electronics (IFE), Northwestern Polytechnical University, Xi'an, 710072, China
| | - Lin Song
- Frontiers Science Center for Flexible Electronics (FSCFE) & Institute of Flexible Electronics (IFE), Northwestern Polytechnical University, Xi'an, 710072, China
| | - Krzysztof Matyjaszewski
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, PA, 15213, USA.
| | - Xiangcheng Pan
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China.
| | - Zhenhua Wang
- Frontiers Science Center for Flexible Electronics (FSCFE) & Institute of Flexible Electronics (IFE), Northwestern Polytechnical University, Xi'an, 710072, China.
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2
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Kitchen G, Sun B, Omar MM, Eisape A, Kang SH. Self-limiting material growth triggered and tunable by force through piezocharge-induced mineralization. MATERIALS HORIZONS 2024. [PMID: 38984449 DOI: 10.1039/d4mh00498a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Controlling the growth of material is crucial in material processing for desired properties. Current approaches often involve sophisticated equipment for controlling precursors and monitoring material formation. Here we report a self-limiting material growth mechanism controlled by the experienced mechanical loading without the need for precise control over precursors or monitoring material growth. Material formation that reduces the driving force for growth is hypothesized to result in a saturation thickness that is dependent on the maximum driving force. Analytical relations based on the growth model are derived and verified using a piezoelectric substrate immersed in an electrolyte solution under fixed frequency cyclic loading to attract surrounding mineral ions to form mineral layers. Accumulating mineral layers decrease the driving force for further growth and the material eventually reaches a saturation thickness. This allows for loading force to control the saturation thickness of the self-limiting material growth. Experimental data supports the predicted exponential relations, offering guides to predict the saturation thickness and control the growth profile. The findings are envisioned to contribute to the fundamental understanding of the self-limiting material growth mechanism and could benefit a range of applications including coatings for orthopedic implants as well as marine surface and underwater vehicles.
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Affiliation(s)
- Grant Kitchen
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, 21218, USA
- Hopkins Extreme Materials Institute, Johns Hopkins University, Baltimore, 21218, USA
| | - Bohan Sun
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, 21218, USA.
- Hopkins Extreme Materials Institute, Johns Hopkins University, Baltimore, 21218, USA
| | - Mostafa M Omar
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, 21218, USA.
- Hopkins Extreme Materials Institute, Johns Hopkins University, Baltimore, 21218, USA
| | - Adebayo Eisape
- Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, 21218, USA
- Hopkins Extreme Materials Institute, Johns Hopkins University, Baltimore, 21218, USA
| | - Sung Hoon Kang
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, 21218, USA.
- Hopkins Extreme Materials Institute, Johns Hopkins University, Baltimore, 21218, USA
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
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3
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Cheng L, Zhao J, Xiong Z, Liu S, Yan X, Yu W. Hyperbranched Vitrimer for Ultrahigh Energy Dissipation. Angew Chem Int Ed Engl 2024; 63:e202406937. [PMID: 38656692 DOI: 10.1002/anie.202406937] [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: 04/11/2024] [Revised: 04/23/2024] [Accepted: 04/24/2024] [Indexed: 04/26/2024]
Abstract
Polymers are ideally utilized as damping materials due to the high internal friction of molecular chains, enabling effective suppression of vibrations and noises in various fields. Current strategies rely on broadening the glass transition region or introducing additional relaxation components to enhance the energy dissipation capacity of polymeric damping materials. However, it remains a significant challenge to achieve high damping efficiency through structural control while maintaining dynamic characteristics. In this work, we propose a new strategy to develop hyperbranched vitrimers (HBVs) containing dense pendant chains and loose dynamic crosslinked networks. A novel yet weak dynamic transesterification between the carboxyl and boronic acid ester was confirmed and used to prepare HBVs based on poly (hexyl methacrylate-2-(4-ethenylphenyl)-5,5-dimethyl-1,3,2-dioxaborinane) P(HMA-co-ViCL) copolymers. TheA B n ${{AB}_{n}}$ -type of macromonomers, the crosslinking points formed by the dynamic covalent connection via the associative exchange, and the weak yet dynamic exchange reaction are the three keys to developing high-performance HBV damping materials. We found that P(HMA-co-ViCL) 20k-40-60 HBV exhibited ultrahigh energy-dissipation performance over a broad frequency and temperature range, attributed to the synergistic effect of dense pendant chains and weak dynamic covalent crosslinks. This unique design concept will provide a general approach to developing advanced damping materials.
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Affiliation(s)
- Lin Cheng
- Advanced Rheology Institute, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Jun Zhao
- Advanced Rheology Institute, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Zhongqiang Xiong
- Advanced Rheology Institute, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Sijun Liu
- Advanced Rheology Institute, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Xuzhou Yan
- Advanced Rheology Institute, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Wei Yu
- Advanced Rheology Institute, School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
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4
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Wang ZJ, Lin J, Nakajima T, Gong JP. Hydrogel morphogenesis induced by force-controlled growth. Proc Natl Acad Sci U S A 2024; 121:e2402587121. [PMID: 38923994 PMCID: PMC11228514 DOI: 10.1073/pnas.2402587121] [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: 02/06/2024] [Accepted: 05/27/2024] [Indexed: 06/28/2024] Open
Abstract
Morphogenesis is one of the most marvelous natural phenomena. The morphological characteristics of biological organs develop through growth, which is often triggered by mechanical force. In this study, we propose a bioinspired strategy for hydrogel morphogenesis through force-controlled chemical reaction and growth under isothermal conditions. We adopted a double network (DN) hydrogel with sacrificial bonds. Applying mechanical force to the gel caused deformation and sacrificial bond rupture. By supplying monomers to the gel, the radicals generated by the bond rupture triggered the formation of a new network inside the deformed gel. This new network conferred plasticity to the elastic gel, allowing it to maintain its deformed shape, along with increased volume and strength. We demonstrated that sheet-shaped DN hydrogels rapidly adopted various three-dimensional shapes at ambient temperature when subjected to forces such as drawing and blowing. This mechanism enables morphogenesis of elastic hydrogels and will promote the application of these materials in biomedical fields and soft machines.
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Affiliation(s)
- Zhi Jian Wang
- Graduate School of Life Science, Hokkaido University, Sapporo 001-0021, Japan
- Institute for Chemical Reaction Design and Discovery, Hokkaido University, Sapporo 001-0021, Japan
| | - Ji Lin
- Center for Mechanics Plus under Extreme Environments, School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China
| | - Tasuku Nakajima
- Institute for Chemical Reaction Design and Discovery, Hokkaido University, Sapporo 001-0021, Japan
- Faculty of Advanced Life Science, Hokkaido University, Sapporo 001-0021, Japan
| | - Jian Ping Gong
- Institute for Chemical Reaction Design and Discovery, Hokkaido University, Sapporo 001-0021, Japan
- Faculty of Advanced Life Science, Hokkaido University, Sapporo 001-0021, Japan
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5
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Xue L, Li A, Li H, Yu X, Li K, Yuan R, Deng X, Li R, Liu Q, Song Y. Droplet-based mechanical transducers modulated by the symmetry of wettability patterns. Nat Commun 2024; 15:4225. [PMID: 38762537 PMCID: PMC11102432 DOI: 10.1038/s41467-024-48538-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 05/03/2024] [Indexed: 05/20/2024] Open
Abstract
Asymmetric mechanical transducers have important applications in energy harvesting, signal transmission, and micro-mechanics. To achieve asymmetric transformation of mechanical motion or energy, active robotic metamaterials, as well as materials with asymmetric microstructures or internal orientation, are usually employed. However, these strategies usually require continuous energy supplement and laborious fabrication, and limited transformation modes are achieved. Herein, utilizing wettability patterned surfaces for precise control of the droplet contact line and inner flow, we demonstrate a droplet-based mechanical transducer system, and achieve multimodal responses to specific vibrations. By virtue of the synergistic effect of surface tension and solid-liquid adhesion on the liquid dynamics, the droplet on the patterned substrate can exhibit symmetric/asymmetric vibration transformation when the substrate vibrates horizontally. Based on this, we construct arrayed patterns with distinct arrangements on the substrate, and employ the swarm effect of the arrayed droplets to achieve three-dimensional and multimodal actuation of the target plate under a fixed input vibration. Further, we demonstrate the utilization of the mechanical transducers for vibration management, object transport, and laser modulation. These findings provide a simple yet efficient strategy to realize a multimodal mechanical transducer, which shows significant potential for aseismic design, optical molding, as well as micro-electromechanical systems (MEMS).
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Affiliation(s)
- Luanluan Xue
- Key Laboratory of Green Printing, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - An Li
- Key Laboratory of Green Printing, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Huizeng Li
- Key Laboratory of Green Printing, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Xinye Yu
- Key Laboratory of Green Printing, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Kaixuan Li
- Key Laboratory of Green Printing, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Renxuan Yuan
- Key Laboratory of Green Printing, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiao Deng
- Key Laboratory of Green Printing, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Rujun Li
- Key Laboratory of Green Printing, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Quan Liu
- Key Laboratory of Green Printing, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yanlin Song
- Key Laboratory of Green Printing, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
- Xiangfu Laboratory, Jiashan, Zhejiang, 314102, China.
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6
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Zeng X, Zhou Y, Xia X, Fan J, Rao S, Ren L, Shen X, Sun R, Zeng X. Elastomer Composites with High Damping and Low Thermal Resistance via Hierarchical Interactions and Regulating Filler. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306946. [PMID: 38133511 DOI: 10.1002/smll.202306946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 12/03/2023] [Indexed: 12/23/2023]
Abstract
Modern microelectronics and emerging technologies such as wearable electronics and soft robotics require elastomers to integrate high damping with low thermal resistance to avoid damage caused by vibrations and heat accumulation. However, the strong coupling between storage modulus and loss factor makes it generally challenging to simultaneously increase both thermal conductance and damping. Here, a strategy of introducing hierarchical interaction and regulating fillers in polybutadiene/spherical aluminum elastomer composites is reported to simultaneously achieve extraordinary damping ability of tan δ > 1.0 and low thermal resistance of 0.15 cm2 K W-1, which surpasses state-of-the-art elastomers and their composites. The enhanced damping is attributed to increased energy dissipation via introducing the hierarchical hydrogen bond interactions in polybutadiene networks and the addition of spherical aluminum, which also functions as a thermally conductive filler to achieve low thermal resistance. As a proof of concept, the polybutadiene/spherical aluminum elastomer composites are used as thermal interface materials, showing effective heat dissipation for electronic devices in vibration scenarios. The combination of outstanding damping performance and extraordinary heat dissipation ability of the elastomer composites may create new opportunities for their applications in electronics.
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Affiliation(s)
- Xiangliang Zeng
- College of Chemistry and Chemical Engineering, Hunan University, Lushan South Road, Yuelu District, Changsha, 410082, China
| | - Yu Zhou
- National Key Laboratory of Materials for Integrated Circuits, Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Xinnian Xia
- College of Chemistry and Chemical Engineering, Hunan University, Lushan South Road, Yuelu District, Changsha, 410082, China
| | - Jianfeng Fan
- National Key Laboratory of Materials for Integrated Circuits, Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Shipeng Rao
- National Key Laboratory of Materials for Integrated Circuits, Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Linlin Ren
- National Key Laboratory of Materials for Integrated Circuits, Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Xi Shen
- Department of Aeronautical and Aviation Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, China
| | - Rong Sun
- National Key Laboratory of Materials for Integrated Circuits, Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Xiaoliang Zeng
- National Key Laboratory of Materials for Integrated Circuits, Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
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7
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Wang T, Zhang J, Chen Z, Zhang R, Duan G, Wang Z, Chen X, Gu Z, Li Y. Sonochemical Synthesis of Natural Polyphenolic Nanoparticles for Modulating Oxidative Stress. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401731. [PMID: 38682736 DOI: 10.1002/smll.202401731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/01/2024] [Indexed: 05/01/2024]
Abstract
Natural polyphenolic compounds play a vital role in nature and are widely utilized as building blocks in the fabrication of emerging functional nanomaterials. Although diverse fabrication methodologies are developed in recent years, the challenges of purification, uncontrollable reaction processes and additional additives persist. Herein, a modular and facile methodology is reported toward the fabrication of natural polyphenolic nanoparticles. By utilizing low frequency ultrasound (40 kHz), the assembly of various natural polyphenolic building blocks is successfully induced, allowing for precise control over the particle formation process. The resulting natural polyphenolic nanoparticles possessed excellent in vitro antioxidative abilities and in vivo therapeutic effects in typical oxidative stress models including wound healing and acute kidney injury. This study opens new avenues for the fabrication of functional materials from naturally occurring building blocks, offering promising prospects for future advancements in this field.
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Affiliation(s)
- Tianyou Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Jianhua Zhang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Zhan Chen
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Rong Zhang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Gaigai Duan
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Zhao Wang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Xianchun Chen
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Zhipeng Gu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Yiwen Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
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8
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Zhao ZH, Chen SY, Zhao PC, Luo WL, Luo YL, Zuo JL, Li CH. Mechanically Adaptive Polymers Constructed from Dynamic Coordination Equilibria. Angew Chem Int Ed Engl 2024; 63:e202400758. [PMID: 38450854 DOI: 10.1002/anie.202400758] [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: 01/15/2024] [Revised: 03/06/2024] [Accepted: 03/06/2024] [Indexed: 03/08/2024]
Abstract
Designing materials capable of adapting their mechanical properties in response to external stimuli is the key to preventing failure and extending their service life. However, existing mechanically adaptive polymers are hindered by limitations such as inadequate load-bearing capacity, difficulty in achieving reversible changes, high cost, and a lack of multiple responsiveness. Herein, we address these challenges using dynamic coordination bonds. A new type of mechanically adaptive material with both rate- and temperature-responsiveness was developed. Owing to the stimuli-responsiveness of the coordination equilibria, the prepared polymers, PBMBD-Fe and PBMBD-Co, exhibit mechanically adaptive properties, including temperature-sensitive strength modulation and rate-dependent impact hardening. Benefitting from the dynamic nature of the coordination bonds, the polymers exhibited impressive energy dissipation, damping capacity (loss factors of 1.15 and 2.09 at 1.0 Hz), self-healing, and 3D printing abilities, offering durable and customizable impact resistance and protective performance. The development of impact-resistant materials with comprehensive properties has potential applications in the sustainable and intelligent protection fields.
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Affiliation(s)
- Zi-Han Zhao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, P. R. China
| | - Shi-Yi Chen
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
| | - Pei-Chen Zhao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
| | - Wen-Lin Luo
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
| | - Yan-Long Luo
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
- College of Science, Nanjing Forestry University, Nanjing, 210037, P. R. China
| | - Jing-Lin Zuo
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
| | - Cheng-Hui Li
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
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9
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Yang L, Guo X, Yang Y, Duan G, Chen K, Wang J, Li Y, Wang Z. Mechanically Controlled Enzymatic Polymerization and Remodeling. ACS Macro Lett 2024; 13:401-406. [PMID: 38511967 DOI: 10.1021/acsmacrolett.4c00057] [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: 03/22/2024]
Abstract
In nature, proteins possess the remarkable ability to sense and respond to mechanical forces, thereby triggering various biological events, such as bone remodeling and muscle regeneration. However, in synthetic systems, harnessing the mechanical force to induce material growth still remains a challenge. In this study, we aimed to utilize low-frequency ultrasound (US) to activate horseradish peroxidase (HRP) and catalyze free radical polymerization. Our findings demonstrate the efficacy of this mechano-enzymatic chemistry in rapidly remodeling the properties of materials through cross-linking polymerization and surface coating. The resulting samples exhibited a significant enhancement in tensile strength, elongation, and Young's modulus. Moreover, the hydrophobicity of the surface could be completely switched within just 30 min of US treatment. This work presents a novel approach for incorporating mechanical sensing and rapid remodeling capabilities into materials.
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Affiliation(s)
- Lei Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Xinyu Guo
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Yiyan Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Gaigai Duan
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Kai Chen
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Jian Wang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Yiwen Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Zhao Wang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
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10
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Wang Y, Guan Q, Guo Y, Sun L, Neisiany RE, Guo X, Huang H, Yang L, You Z. Bone-inspired stress-gaining elastomer enabled by dynamic molecular locking. SCIENCE ADVANCES 2024; 10:eadk5177. [PMID: 38517961 PMCID: PMC10959417 DOI: 10.1126/sciadv.adk5177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 02/16/2024] [Indexed: 03/24/2024]
Abstract
The limited capacity of typical materials to resist stress loading, which affects their mechanical performance, is one of the most formidable challenges in materials science. Here, we propose a bone-inspired stress-gaining concept of converting typically destructive stress into a favorable factor to substantially enhance the mechanical properties of elastomers. The concept was realized by a molecular design of dynamic poly(oxime-urethanes) network with mesophase domains. During external loading, the mesophase domains in the condensed state were aligned into more ordered domains, and the dynamic oxime-urethane bonds served as the dynamic molecular locks disassociating and reorganizing to facilitate and fix the mesophase domains. Consequently, the tensile modulus and strength were enhanced by 1744 and 49.3 times after four cycles of mechanical training, respectively. This study creates a molecular concept with stress-gaining properties induced by repeated mechanical stress loading and will inspire a series of innovative materials for diverse applications.
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Affiliation(s)
- Yang Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, P. R. China
| | - Qingbao Guan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, P. R. China
| | - Yue Guo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, P. R. China
| | - Lijie Sun
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, P. R. China
| | - Rasoul Esmaeely Neisiany
- Department of Polymer Engineering, Hakim Sabzevari University, Sabzevar 9617976487, Iran
- Biotechnology Centre, Silesian University of Technology, Krzywoustego 8, 44-100 Gliwice, Poland
| | - Xuran Guo
- Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hongfei Huang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, P. R. China
| | - Lei Yang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, P. R. China
| | - Zhengwei You
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Institute of Functional Materials, Research Base of Textile Materials for Flexible Electronics and Biomedical Applications (China Textile Engineering Society), Shanghai Engineering Research Center of Nano Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, P. R. China
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11
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Liu Y, Wang L, Liu Z, Kang Y, Chen T, Xu C, Zhu T. Durable Immunomodulatory Nanofiber Niche for the Functional Remodeling of Cardiovascular Tissue. ACS NANO 2024; 18:951-971. [PMID: 38146717 DOI: 10.1021/acsnano.3c09692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
Functional remodeling and prolonged anti-inflammatory responses are both vital for repairing damage in the cardiovascular system. Although these aspects have each been studied extensively alone, attempts to fabricate scaffolds that combine these effects have seen limited success. In this study, we synthesized salvianic acid A (SA, danshensu) blocked biodegradable polyurethane (PCHU-D) and enclosed it within electrospun nanofibers to synthesize a durable immunomodulatory nanofiber niche (DINN), which provided sustained SA release during inflammation. Given its excellent processability, mechanical properties, and shape memory function, we developed two variants of the DINN as vascular scaffolds and heart patches. Both these variants exhibited outstanding therapeutic effects in in vivo experiments. The DINN was expertly designed such that it gradually decomposes along with SA release, substantially facilitating cellular infiltration and tissue remodeling. Therefore, the DINN effectively inhibited the migration and chemotaxis of inflammatory cells, while also increasing the expression of angiogenic genes. As a result, it promoted the recovery of myocardial function after myocardial infarction and induced rapid reendothelialization following arterial orthotopic transplantation repair. These excellent characteristics indicate that the DINN holds great potential as a multifunctional agent for repairing cardiovascular tissues.
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Affiliation(s)
- Yonghang Liu
- Multidisciplinary Centre for Advanced Materials, Institute for Frontier Medical Technology, School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, P.R. China
| | - Liren Wang
- Department of Sports Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 600 Yishan Road, Shanghai 200233, P.R. China
| | - Zhuo Liu
- Department of Physiology and Pathophysiology, Shanghai Key Laboratory of Bioactive Small Molecules, School of Basic Medical Sciences, Fudan University, 138 Xueyuan Road, Shanghai 200032, P.R. China
| | - Yuhao Kang
- Department of Sports Medicine, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 600 Yishan Road, Shanghai 200233, P.R. China
| | - Tianhui Chen
- Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, 83 Fenyang Road, Shanghai 200031, P.R. China
| | - Chen Xu
- Department of Physiology and Pathophysiology, Shanghai Key Laboratory of Bioactive Small Molecules, School of Basic Medical Sciences, Fudan University, 138 Xueyuan Road, Shanghai 200032, P.R. China
| | - Tonghe Zhu
- Multidisciplinary Centre for Advanced Materials, Institute for Frontier Medical Technology, School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai 201620, P.R. China
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12
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Mu Q, Hu J. Polymer mechanochemistry: from single molecule to bulk material. Phys Chem Chem Phys 2024; 26:679-694. [PMID: 38112120 DOI: 10.1039/d3cp04160c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
The field of polymer mechanochemistry has experienced a renaissance over the past decades, primarily propelled by the rapid development of force-sensitive molecular units (i.e., mechanophores) and principles governing the reactivity of polymer networks for mechanochemical transduction or material strengthening. In addition to fundamental guidelines for converting mechanical energy input into chemical output, there has also been increasing focus on engineering applications of polymer mechanochemistry for specific functions, mechanically adaptive material systems, and smart devices. These endeavors are made possible by multidisciplinary approaches involving the development of multifunctional mechanophores for mechanoresponsive polymer systems, mechanochemical catalysis and synthesis, three-dimensional (3D) printed mechanochromic materials, reasonable design of polymer network topology, and computational modeling. The aim of this minireview is to provide a summary of recent advancements in covalent polymer mechanochemistry. We specifically focus on productive mechanophores, mechanical remodeling of polymeric materials, and the development of theoretical concepts.
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Affiliation(s)
- Qifeng Mu
- RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Jian Hu
- State Key Laboratory for Strength and Vibration of Mechanical Structures, Department of Engineering Mechanics, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
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13
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Zhou D, Liu H, Zheng Z, Wu D. Design principles in mechanically adaptable biomaterials for repairing annulus fibrosus rupture: A review. Bioact Mater 2024; 31:422-439. [PMID: 37692911 PMCID: PMC10485601 DOI: 10.1016/j.bioactmat.2023.08.012] [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: 06/01/2023] [Revised: 07/25/2023] [Accepted: 08/12/2023] [Indexed: 09/12/2023] Open
Abstract
Annulus fibrosus (AF) plays a crucial role in the biomechanical loading of intervertebral disc (IVD). AF is difficult to self-heal when the annulus tears develop, because AF has a unique intricate structure and biologic milieu in vivo. Tissue engineering is promising for repairing AF rupture, but construction of suitable mechanical matching devices or scaffolds is still a grand challenge. To deeply know the varied forces involved in the movement of the native annulus is highly beneficial for designing biomimetic scaffolds to recreate the AF function. In this review, we overview six freedom degrees of forces and adhesion strength on AF tissue. Then, we summarize the mechanical modalities to simulate related forces on AF and to assess the characteristics of biomaterials. We finally outline some current advanced techniques to develop mechanically adaptable biomaterials for AF rupture repair.
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Affiliation(s)
- Dan Zhou
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Hongmei Liu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Zhaomin Zheng
- Department of Spine Surgery, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, China
- Pain Research Center, Sun Yat-Sen University, Guangzhou 510080, China
| | - Decheng Wu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
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14
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Zeitler SM, Golder MR. Shake, shear, and grind! - the evolution of mechanoredox polymerization methodology. Chem Commun (Camb) 2023; 60:26-35. [PMID: 38018257 DOI: 10.1039/d3cc04323a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
In the last half decade, mechanoredox catalysis has enabled an entirely new genre of polymerization methodology. In this paradigm, mechanical force, such as ultrasonic cavitation bubble collapse or ball mill grinding, polarizes piezoelectric nanoparticles; the resultant piezopotential drives the redox processes necessary for free- and controlled-radical polymerizations. Since being introduced, evolution of these methods facilitates exploration of mechanistic underpinnings behind key electron-transfer events. Mechanical force has not only been identified as a "greener" alternative to more traditional reaction stimuli (e.g., heat, light) for the synthesis of commodity polymers, but also a potential technology to enable the production of novel thermoplastic and thermoset materials that are either challenging, or even impossible, to access using conventional solution-state approaches. In this Feature Article, significant contributions to such methods are highlighted within. Advances and ongoing challenges in both ultrasound and ball milling driven reactions for radical polymerization and crosslinking are identified and discussed.
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Affiliation(s)
- Sarah M Zeitler
- Department of Chemistry and Molecular Engineering & Science Institute, University of Washington, Seattle, WA 98195, USA.
| | - Matthew R Golder
- Department of Chemistry and Molecular Engineering & Science Institute, University of Washington, Seattle, WA 98195, USA.
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15
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Ayarza J, Wang J, Kim H, Huang PR, Cassaidy B, Yan G, Liu C, Jaeger HM, Rowan SJ, Esser-Kahn AP. Bioinspired mechanical mineralization of organogels. Nat Commun 2023; 14:8319. [PMID: 38097549 PMCID: PMC10721619 DOI: 10.1038/s41467-023-43733-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: 04/15/2023] [Accepted: 11/17/2023] [Indexed: 12/17/2023] Open
Abstract
Mineralization is a long-lasting method commonly used by biological materials to selectively strengthen in response to site specific mechanical stress. Achieving a similar form of toughening in synthetic polymer composites remains challenging. In previous work, we developed methods to promote chemical reactions via the piezoelectrochemical effect with mechanical responses of inorganic, ZnO nanoparticles. Herein, we report a distinct example of a mechanically-mediated reaction in which the spherical ZnO nanoparticles react themselves leading to the formation of microrods composed of a Zn/S mineral inside an organogel. The microrods can be used to selectively create mineral deposits within the material resulting in the strengthening of the overall resulting composite.
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Affiliation(s)
- Jorge Ayarza
- Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, IL, 60637, USA
| | - Jun Wang
- Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, IL, 60637, USA
| | - Hojin Kim
- Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, IL, 60637, USA
- James Franck Institute, University of Chicago, 929 East 57th Street, Chicago, IL, 60637, USA
| | - Pin-Ruei Huang
- Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, IL, 60637, USA
| | - Britteny Cassaidy
- Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, IL, 60637, USA
| | - Gangbin Yan
- Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, IL, 60637, USA
| | - Chong Liu
- Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, IL, 60637, USA
| | - Heinrich M Jaeger
- James Franck Institute, University of Chicago, 929 East 57th Street, Chicago, IL, 60637, USA
- Department of Physics, University of Chicago, 5720 South Ellis Avenue, Chicago, IL, 60637, USA
| | - Stuart J Rowan
- Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, IL, 60637, USA
- Department of Chemistry, University of Chicago, 5735 South Ellis Avenue, Chicago, IL, 60637, USA
- Chemical and Engineering Sciences Division, Argonne National Laboratory, 9700 Cass Avenue, Lemont, IL, 60439, USA
| | - Aaron P Esser-Kahn
- Pritzker School of Molecular Engineering, University of Chicago, 5640 South Ellis Avenue, Chicago, IL, 60637, USA.
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16
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Kim H, Esser-Kahn AP, Rowan SJ, Jaeger HM. Stress-activated friction in sheared suspensions probed with piezoelectric nanoparticles. Proc Natl Acad Sci U S A 2023; 120:e2310088120. [PMID: 38015840 PMCID: PMC10710073 DOI: 10.1073/pnas.2310088120] [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: 06/15/2023] [Accepted: 10/28/2023] [Indexed: 11/30/2023] Open
Abstract
A hallmark of concentrated suspensions is non-Newtonian behavior, whereby the viscosity increases dramatically once a characteristic shear rate or stress is exceeded. Such strong shear thickening is thought to originate from a network of frictional particle-particle contact forces, which forms under sufficiently large stress, evolves dynamically, and adapts to changing loads. While there is much evidence from simulations for the emergence of this network during shear thickening, experimental confirmation has been difficult. Here, we use suspensions of piezoelectric nanoparticles and exploit the strong local stress focusing within the network to activate charge generation. This charging can then be detected in the measured ac conductance and serve as a signature of frictional contact formation. The direct link between stress-activated frictional particle interactions and piezoelectric suspension response is further demonstrated by tracking the emergence of structural memory in the contact network under oscillatory shear and by showing how stress-activated friction can drive mechano-transduction of chemical reactions with nonlinear reaction kinetics. Taken together, this makes the ac conductance of piezoelectric suspensions a sensitive in-situ reporter of the micromechanics associated with frictional interactions.
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Affiliation(s)
- Hojin Kim
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL60637
- James Franck Institute and Department of Physics, University of Chicago, Chicago, IL60637
| | - Aaron P. Esser-Kahn
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL60637
| | - Stuart J. Rowan
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL60637
- Department of Chemistry, University of Chicago, Chicago, IL60637
- Chemical and Engineering Sciences Division, Argonne National Laboratory, Lemont, IL60439
| | - Heinrich M. Jaeger
- James Franck Institute and Department of Physics, University of Chicago, Chicago, IL60637
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17
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Li Z, Wang Z, Wang C, Li W, Fan W, Zhao R, Feng H, Peng D, Huang W. Mechanoluminescent Materials Enable Mechanochemically Controlled Atom Transfer Radical Polymerization and Polymer Mechanotransduction. RESEARCH (WASHINGTON, D.C.) 2023; 6:0243. [PMID: 37795336 PMCID: PMC10546606 DOI: 10.34133/research.0243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 09/13/2023] [Indexed: 10/06/2023]
Abstract
Organic mechanophores have been widely adopted for polymer mechanotransduction. However, most examples of polymer mechanotransduction inevitably experience macromolecular chain rupture, and few of them mimic mussel's mechanochemical regeneration, a mechanically mediated process from functional units to functional materials in a controlled manner. In this paper, inorganic mechanoluminescent (ML) materials composed of CaZnOS-ZnS-SrZnOS: Mn2+ were used as a mechanotransducer since it features both piezoelectricity and mechanolunimescence. The utilization of ML materials in polymerization enables both mechanochemically controlled radical polymerization and the synthesis of ML polymer composites. This procedure features a mechanochemically controlled manner for the design and synthesis of diverse mechanoresponsive polymer composites.
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Affiliation(s)
- Zexuan Li
- Frontiers Science Center for Flexible Electronics, Institute of Flexible Electronics, Northwestern Polytechnical University, Xi’an 710072, China
| | - Zhenhua Wang
- Frontiers Science Center for Flexible Electronics, Institute of Flexible Electronics, Northwestern Polytechnical University, Xi’an 710072, China
| | - Chen Wang
- Frontiers Science Center for Flexible Electronics, Institute of Flexible Electronics, Northwestern Polytechnical University, Xi’an 710072, China
| | - Wenxi Li
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China
| | - Wenru Fan
- Frontiers Science Center for Flexible Electronics, Institute of Flexible Electronics, Northwestern Polytechnical University, Xi’an 710072, China
| | - Ruoqing Zhao
- Frontiers Science Center for Flexible Electronics, Institute of Flexible Electronics, Northwestern Polytechnical University, Xi’an 710072, China
| | - Haoyang Feng
- Frontiers Science Center for Flexible Electronics, Institute of Flexible Electronics, Northwestern Polytechnical University, Xi’an 710072, China
| | - Dengfeng Peng
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Wei Huang
- Frontiers Science Center for Flexible Electronics, Institute of Flexible Electronics, Northwestern Polytechnical University, Xi’an 710072, China
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18
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Ren Z, Ding C, Ding R, Wang J, Li Z, Tan R, Wang X, Wang Z, Zhang Z. Enhancing Ultrasound-Assisted Iodine-Mediated Reversible-Deactivation Radical Polymerization by Piezoelectric Nanoparticles. ACS Macro Lett 2023; 12:1159-1165. [PMID: 37523272 DOI: 10.1021/acsmacrolett.3c00317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
The development of mechanochemical tools for regulating the polymerization process has received an increasing amount of attention in recent years. Herein, we report the example of the mechanically controlled iodine-mediated reversible-deactivation radical polymerization (mechano-RDRP) using piezoelectric tetragonal BaTiO3 nanoparticles (T-BTO) as mechanoredox catalyst and alkyl iodide as the initiator. We demonstrated a more efficient mechanochemical initiation and reversible deactivation process than sonochemical activation via a mechanoredox-mediated alkyl iodide cleavage reaction. The mechanochemical activation of the C-I bond was verified by density functional theory (DFT) calculations. Theoretical calculations together with experimental results confirmed the more efficient initiation and polymerization than the traditional sonochemical approach. The influence of BaTiO3, initiator, and solvent was further examined to reveal the mechanism of the mechano-RDRP. The results showed good controllability over molecular weight and capacity for a one-pot chain extension. This work expands the scope of mechanically controlled polymerization and shows good potential in the construction of adaptive materials.
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Affiliation(s)
- Ziye Ren
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Chengqiang Ding
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Ran Ding
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Junce Wang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Zhengheng Li
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Rui Tan
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Xin Wang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Zhao Wang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Zhengbiao Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
- State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, China
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19
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Cvek M, Jazani AM, Sobieski J, Jamatia T, Matyjaszewski K. Comparison of Mechano- and PhotoATRP with ZnO Nanocrystals. Macromolecules 2023; 56:5101-5110. [PMID: 37457022 PMCID: PMC10339823 DOI: 10.1021/acs.macromol.3c00250] [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: 02/12/2023] [Revised: 04/24/2023] [Indexed: 07/18/2023]
Abstract
Zinc oxide (ZnO) was previously reported as an excellent cocatalyst for mechanically controlled atom transfer radical polymerization (mechanoATRP), but its photocatalytic properties in photoinduced ATRP (photoATRP) have been much less explored. Herein, well-defined ZnO nanocrystals were prepared via microwave-assisted synthesis and applied as a heterogeneous cocatalyst in mechano- and photoATRP. Both techniques yielded polymers with outstanding control over the molecular weight, but ZnO-cocatalyzed photoATRP was much faster than analogous mechanoATRP (conversion of 91% in 1 h vs 54% in 5 h). The kinetics of photoATRP was tuned by loadings of ZnO nanocrystals. PhotoATRP with ZnO did not require any excess of ligand versus Cu, in contrast to mechanoATRP, requiring an excess of ligand, acting as a reducing agent. ZnO-cocatalyzed photoATRP proceeded controllably without prior deoxygenation, since ZnO was involved in a cascade of reactions, leading to the rapid elimination of oxygen. The versatility and robustness of the technique were demonstrated for various (meth)acrylate monomers with good temporal control and preservation of end-group functionality, illustrated by the formation of tailored block copolymers.
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Affiliation(s)
- Martin Cvek
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
- Centre
of Polymer Systems, Tomas Bata University
in Zlin, Trida T. Bati 5678, 760 01 Zlin, Czech Republic
| | - Arman Moini Jazani
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Julian Sobieski
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Thaiskang Jamatia
- Centre
of Polymer Systems, Tomas Bata University
in Zlin, Trida T. Bati 5678, 760 01 Zlin, Czech Republic
| | - Krzysztof Matyjaszewski
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
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20
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Hu S, Fang Y, Liang C, Turunen M, Ikkala O, Zhang H. Thermally trainable dual network hydrogels. Nat Commun 2023; 14:3717. [PMID: 37349296 DOI: 10.1038/s41467-023-39446-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 06/14/2023] [Indexed: 06/24/2023] Open
Abstract
Inspired by biological systems, trainable responsive materials have received burgeoning research interests for future adaptive and intelligent material systems. However, the trainable materials to date typically cannot perform active work, and the training allows only one direction of functionality change. Here, we demonstrate thermally trainable hydrogel systems consisting of two thermoresponsive polymers, where the volumetric response of the system upon phase transitions enhances or decreases through a training process above certain threshold temperature. Positive or negative training of the thermally induced deformations can be achieved, depending on the network design. Importantly, softening, stiffening, or toughening of the hydrogel can be achieved by the training process. We demonstrate trainable hydrogel actuators capable of performing increased active work or implementing an initially impossible task. The reported dual network hydrogels provide a new training strategy that can be leveraged for bio-inspired soft systems such as adaptive artificial muscles or soft robotics.
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Affiliation(s)
- Shanming Hu
- Department of Applied Physics, Aalto University, P.O. Box 15100, Espoo, FI 02150, Finland
| | - Yuhuang Fang
- Department of Applied Physics, Aalto University, P.O. Box 15100, Espoo, FI 02150, Finland
| | - Chen Liang
- Department of Applied Physics, Aalto University, P.O. Box 15100, Espoo, FI 02150, Finland
| | - Matti Turunen
- Department of Applied Physics, Aalto University, P.O. Box 15100, Espoo, FI 02150, Finland
| | - Olli Ikkala
- Department of Applied Physics, Aalto University, P.O. Box 15100, Espoo, FI 02150, Finland.
| | - Hang Zhang
- Department of Applied Physics, Aalto University, P.O. Box 15100, Espoo, FI 02150, Finland.
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21
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Zhang K, Wu D, Chang L, Duan W, Wang Y, Li W, Qin J. Cellulose based self-healing hydrogel through Boronic Ester connections for wound healing and antitumor applications. Int J Biol Macromol 2023; 230:123294. [PMID: 36649869 DOI: 10.1016/j.ijbiomac.2023.123294] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 12/22/2022] [Accepted: 01/12/2023] [Indexed: 01/15/2023]
Abstract
The application of biodegradable hydrogels in medical field has drawn great attention because their networked structure provided ideal spaces for drug loading and cell growth. In this research, the boronic acid was coupled onto carboxyethyl cellulose (CMC) to synthesize boronic acid grafted CMC (CMC-BA) conveniently and self-healing hydrogel was fabricated with polyvinyl alcohol (PVA) crosslinking through dynamic boronic ester bond. The CMC-BA/PVA hydrogel showed good biocompatibility and could be degraded by cellulase and in vivo. The hydrogel formed fast fit for localized injection to cover the irregular wounds and localize the antitumor drugs to the tumor site. The in vivo wound repairing experiment revealed the hydrogel could form airtight adhesion to the wound site to reduce blood loss and accelerate the wound repairing rate. The hydrogel as a drug release carrier also reduced the acute in vivo toxicity of DOX with antitumor performance well preserved through a controlled release profile. Based on the above advantages, the CMC-based hydrogel with boronic ester connection should have great potential in biomedical areas with profitable future.
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Affiliation(s)
- Kaiyue Zhang
- College of Chemistry and Environmental Science, Hebei University, Baoding City, Hebei Province 071002, China
| | - Di Wu
- Key Laboratory of Pathogenesis Mechanism and Control of Inflammatory-Autoimmune Diseases in Hebei Province, Hebei University, Baoding City, Hebei Province 071002, China
| | - Limin Chang
- College of Chemistry and Environmental Science, Hebei University, Baoding City, Hebei Province 071002, China
| | - Wenhao Duan
- College of Chemistry and Environmental Science, Hebei University, Baoding City, Hebei Province 071002, China
| | - Yong Wang
- Key Laboratory of Pathogenesis Mechanism and Control of Inflammatory-Autoimmune Diseases in Hebei Province, Hebei University, Baoding City, Hebei Province 071002, China
| | - Wenjuan Li
- Key Laboratory of Pathogenesis Mechanism and Control of Inflammatory-Autoimmune Diseases in Hebei Province, Hebei University, Baoding City, Hebei Province 071002, China
| | - Jianglei Qin
- College of Chemistry and Environmental Science, Hebei University, Baoding City, Hebei Province 071002, China; Key Laboratory of Pathogenesis Mechanism and Control of Inflammatory-Autoimmune Diseases in Hebei Province, Hebei University, Baoding City, Hebei Province 071002, China.
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22
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Jian N, Guo R, Zuo L, Sun Y, Xue Y, Liu J, Zhang K. Bioinspired Self-Growing Hydrogels by Harnessing Interfacial Polymerization. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2210609. [PMID: 36585822 DOI: 10.1002/adma.202210609] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/26/2022] [Indexed: 06/17/2023]
Abstract
The production of natural materials is achieved through a bottom-up approach, in which materials spontaneously grow and adapt to the external environment. Synthetic materials are specifically designed and fabricated as engineered materials; however, they are far away from these natural self-growing attributes. Thus, design and fabrication of synthetic material systems to replicate the self-growing characteristics of those natural prototypes (i.e., hairs and nails) remains challenging. Inspired by the self-growing behaviors of keratin proteins, here the fabrication of synthetic hydrogels (i.e., polyacrylamide (PAAm)) from the free radical polymerization at the interface between AAm precursor solution and liquid metals (i.e., eutectic gallium-indium (EGaIn)) is reported. The newly formed hydrogel materials at the EGaIn/AAm precursor interface gradually push the whole hydrogel upward, enabling the self-growing of these synthetic hydrogel materials. This work not only endows the fabrication of synthetic materials with unprecedented self-growing characters, but also broadens the potential applications of self-growing materials in actuation and soft robotics.
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Affiliation(s)
- Nannan Jian
- School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Rui Guo
- School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Lei Zuo
- School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Yibo Sun
- School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Yu Xue
- Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Ji Liu
- Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
- Shenzhen Key Laboratory of Biomimetic Robotics and Intelligent Systems, Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
- Guangdong Provincial Key Laboratory of Human-Augmentation and Rehabilitation Robotics in Universities, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Kai Zhang
- School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China
- Tangshan Research Institute, Beijing Institute of Technology, Tangshan, 063000, P. R. China
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23
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Xiang H, Li X, Wu B, Sun S, Wu P. Highly Damping and Self-Healable Ionic Elastomer from Dynamic Phase Separation of Sticky Fluorinated Polymers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2209581. [PMID: 36670074 DOI: 10.1002/adma.202209581] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/17/2022] [Indexed: 06/17/2023]
Abstract
Shock-induced low-frequency vibration damage is extremely harmful to bionic soft robots and machines that may incur the malfunction of fragile electronic elements. However, current skin-like self-healable ionic elastomers as the artificial sensing and protecting layer still lack the ability to dampen vibrations, due to their almost opposite design for molecular frictions to material's elasticity. Inspired by the two-phase structure of adipose tissue (the natural damping skin layer), here, a highly damping ionic elastomer with energy-dissipating nanophases embedded in an elastic matrix is introduced, which is formed by polymerization-induced dynamic phase separation of sticky fluorinated copolymers in the presence of lithium salts. Such a supramolecular design decouples the elastic and damping functions into two distinct phases, and thus reconciles a few intriguing properties including ionic conductivity, high stretchability, softness, strain-stiffening, elastic recovery, room-temperature self-healability, recyclability, and most importantly, record-high damping capacity at the human motion frequency range (loss factor tan δ > 1 at 0.1-50 Hz). This study opens the door for the artificial syntheses of high-performance damping ionic skins with robust sensing and protective applications in soft electronics and robotics.
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Affiliation(s)
- Huai Xiang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry and Chemical Engineering & Center for Advanced Low-dimension Materials, Donghua University, 2999 North Renmin Road, Shanghai, 201620, China
| | - Xiaoxia Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry and Chemical Engineering & Center for Advanced Low-dimension Materials, Donghua University, 2999 North Renmin Road, Shanghai, 201620, China
| | - Baohu Wu
- Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ) Forschungszentrum Jülich, Lichtenbergstr. 1, 85748, Garching, Germany
| | - Shengtong Sun
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry and Chemical Engineering & Center for Advanced Low-dimension Materials, Donghua University, 2999 North Renmin Road, Shanghai, 201620, China
| | - Peiyi Wu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry and Chemical Engineering & Center for Advanced Low-dimension Materials, Donghua University, 2999 North Renmin Road, Shanghai, 201620, China
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24
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Temperature-dependent rheological behaviour of methylcellulose nanocomposite organogels. Macromol Res 2023. [DOI: 10.1007/s13233-023-00110-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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25
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Chakma P, Zeitler SM, Baum F, Yu J, Shindy W, Pozzo LD, Golder MR. Mechanoredox Catalysis Enables a Sustainable and Versatile Reversible Addition-Fragmentation Chain Transfer Polymerization Process. Angew Chem Int Ed Engl 2023; 62:e202215733. [PMID: 36395245 DOI: 10.1002/anie.202215733] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Indexed: 11/19/2022]
Abstract
The sustainable synthesis of macromolecules with control over sequence and molar mass remains a challenge in polymer chemistry. By coupling mechanochemistry and electron-transfer processes (i.e., mechanoredox catalysis), an energy-conscious controlled radical polymerization methodology is realized. This work explores an efficient mechanoredox reversible addition-fragmentation chain transfer (RAFT) polymerization process using mechanical stimuli by implementing piezoelectric barium titanate and a diaryliodonium initiator with minimal solvent usage. This mechanoredox RAFT process demonstrates exquisite control over poly(meth)acrylate dispersity and chain length while also showcasing an alternative to the solution-state synthesis of semifluorinated polymers that typically utilize exotic solvents and/or reagents. This chemistry will find utility in the sustainable development of materials across the energy, biomedical, and engineering communities.
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Affiliation(s)
- Progyateg Chakma
- Department of Chemistry and Molecular Engineering & Science Institute, University of Washington, 36 Bagley Hall, Seattle, WA 98195, USA
| | - Sarah M Zeitler
- Department of Chemistry and Molecular Engineering & Science Institute, University of Washington, 36 Bagley Hall, Seattle, WA 98195, USA
| | - Fábio Baum
- Department of Chemical Engineering and Department of Material Science & Engineering, University of Washington, 105 Benson Hall, Seattle, WA 98195, USA
| | - Jiatong Yu
- Department of Chemistry and Molecular Engineering & Science Institute, University of Washington, 36 Bagley Hall, Seattle, WA 98195, USA
| | - Waseem Shindy
- Department of Chemistry and Molecular Engineering & Science Institute, University of Washington, 36 Bagley Hall, Seattle, WA 98195, USA
| | - Lilo D Pozzo
- Department of Chemical Engineering and Department of Material Science & Engineering, University of Washington, 105 Benson Hall, Seattle, WA 98195, USA
| | - Matthew R Golder
- Department of Chemistry and Molecular Engineering & Science Institute, University of Washington, 36 Bagley Hall, Seattle, WA 98195, USA
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26
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Li P, Kim S, Tian B. Nanoenabled Trainable Systems: From Biointerfaces to Biomimetics. ACS NANO 2022; 16:19651-19664. [PMID: 36516872 PMCID: PMC9798864 DOI: 10.1021/acsnano.2c08042] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 12/09/2022] [Indexed: 05/30/2023]
Abstract
In the dynamic biological system, cells and tissues adapt to diverse environmental conditions and form memories, an essential aspect of training for survival and evolution. An understanding of the biological training principles will inform the design of biomimetic materials whose properties evolve with the environment and offer routes to programmable soft materials, neuromorphic computing, living materials, and biohybrid robotics. In this perspective, we examine the mechanisms by which cells are trained by environmental cues. We outline the artificial platforms that enable biological training and examine the relationship between biological training and biomimetic materials design. We place emphasis on nanoscale material platforms which, given their applicability to chemical, mechanical and electrical stimulation, are critical to bridging natural and synthetic systems.
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Affiliation(s)
- Pengju Li
- Pritzker
School of Molecular Engineering, The University
of Chicago, Chicago, Illinois 60637, United States
| | - Saehyun Kim
- Department
of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
| | - Bozhi Tian
- Department
of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
- The
James Franck Institute, The University of
Chicago, Chicago, Illinois 60637, United States
- The
Institute for Biophysical Dynamics, University
of Chicago, Chicago, Illinois 60637, United States
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27
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Shi J, Dai W, Gupta A, Zhang B, Wu Z, Zhang Y, Pan L, Wang L. Frontiers of Hydroxyapatite Composites in Bionic Bone Tissue Engineering. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15238475. [PMID: 36499970 PMCID: PMC9738134 DOI: 10.3390/ma15238475] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/21/2022] [Accepted: 11/25/2022] [Indexed: 05/31/2023]
Abstract
Bone defects caused by various factors may cause morphological and functional disorders that can seriously affect patient's quality of life. Autologous bone grafting is morbid, involves numerous complications, and provides limited volume at donor site. Hence, tissue-engineered bone is a better alternative for repair of bone defects and for promoting a patient's functional recovery. Besides good biocompatibility, scaffolding materials represented by hydroxyapatite (HA) composites in tissue-engineered bone also have strong ability to guide bone regeneration. The development of manufacturing technology and advances in material science have made HA composite scaffolding more closely related to the composition and mechanical properties of natural bone. The surface morphology and pore diameter of the scaffold material are more important for cell proliferation, differentiation, and nutrient exchange. The degradation rate of the composite scaffold should match the rate of osteogenesis, and the loading of cells/cytokine is beneficial to promote the formation of new bone. In conclusion, there is no doubt that a breakthrough has been made in composition, mechanical properties, and degradation of HA composites. Biomimetic tissue-engineered bone based on vascularization and innervation show a promising future.
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Affiliation(s)
- Jingcun Shi
- Department of Oral and Maxillofacial Surgery—Head & Neck Oncology, 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
- Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, National Clinical Research Center for Oral Diseases, National Center for Stomatology, Shanghai 200011, China
| | - Wufei Dai
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
- Shanghai Tissue Engineering Key Laboratory, Shanghai Research Institute of Plastic and Reconstructive Surgey, Shanghai 200011, China
| | - Anand Gupta
- Department of Dentistry, Government Medical College & Hospital, Chandigarh 160017, India
| | - Bingqing Zhang
- Department of Oral and Maxillofacial Surgery—Head & Neck Oncology, 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
- Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, National Clinical Research Center for Oral Diseases, National Center for Stomatology, Shanghai 200011, China
| | - Ziqian Wu
- Department of Oral and Maxillofacial Surgery—Head & Neck Oncology, 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
- Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, National Clinical Research Center for Oral Diseases, National Center for Stomatology, Shanghai 200011, China
| | - Yuhan Zhang
- Department of Oral and Maxillofacial Surgery—Head & Neck Oncology, 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
- Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, National Clinical Research Center for Oral Diseases, National Center for Stomatology, Shanghai 200011, China
| | - Lisha Pan
- College of Stomatology, Shanghai Jiao Tong University, Shanghai 200011, China
- Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, National Clinical Research Center for Oral Diseases, National Center for Stomatology, Shanghai 200011, China
| | - Lei Wang
- Department of Oral and Maxillofacial Surgery—Head & Neck Oncology, 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
- Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, National Clinical Research Center for Oral Diseases, National Center for Stomatology, Shanghai 200011, China
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28
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Liu J, Zhang B, Zhang P, Zhao K, Lu Z, Wei H, Zheng Z, Yang R, Yu Y. Protein Crystallization-Mediated Self-Strengthening of High-Performance Printable Conducting Organohydrogels. ACS NANO 2022; 16:17998-18008. [PMID: 36136126 DOI: 10.1021/acsnano.2c07823] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Conductive polymers have many advanced applications, but there is still an important target in developing a general and straightforward strategy for printable, mechanically stable, and durable organohydrogels with typical conducting polymers of, for example, polypyrrole, polyaniline, or poly(3,4-ethylenedioxythiophene). Here we report a protein crystallization-mediated self-strengthening strategy to fabricate printable conducting organohydrogels with the combination of rational photochemistry design. Such organohydrogels are one-step prepared via rapidly and orthogonally controllable photopolymerizations of pyrroles and gelatin protein in tens of seconds. As-prepared conducting organohydrogels are patterned and printed to complicated structures via shadow-mask lithography and 3D extrusion technology. The mild photocatalytic system gives the transition metal carbide/nitride (MXene) component high stability during the oxidative preparation process and storage. Controlling water evaporation promotes gelatin crystallization in the as-prepared organohydrogels that significantly self-strengthens their mechanical property and stability in a broad temperature range and durability against continuous friction treatment without introducing guest functional materials. Also, these organohydrogels have commercially electromagnetic shielding, thermal conducting properties, and temperature- and light-responsibility. To further demonstrate the merits of this simple strategy and as-prepared organohydrogels, prism arrays, as proofs-of-concept, are printed and applied to make wearable triboelectric nanogenerators. This self-strengthening process and 3D-printability can greatly improve their voltage, charge, and current output performances compared to the undried and flat samples.
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Affiliation(s)
- Jupen Liu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, China
| | - Bo Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Ping Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, China
| | - Keqi Zhao
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an 710000, China
| | - Zhe Lu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, China
| | - Hongqiu Wei
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, China
| | - Zijian Zheng
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, HongKong SAR, 999077, China
| | - Rusen Yang
- School of Advanced Materials and Nanotechnology, Xidian University, Xi'an 710000, China
| | - You Yu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an 710127, China
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29
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Jiao Y, Stoddart J. Electron / hole catalysis: A versatile strategy for promoting chemical transformations. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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30
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Cao J, Wang Y, Guo Q, Cui Q, Su G, Zhou T, Zhang X, Zhang C. Mechano-Regulable and Healable Silk-Based Materials for Adaptive Applications. Biomacromolecules 2022; 23:4296-4307. [PMID: 36059206 DOI: 10.1021/acs.biomac.2c00766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Mechanically adaptive materials responsive to environmental stimuli through changing mechanical properties are highly attractive in intelligent devices. However, it is hard to regulate the mechanical properties of most mechanically adaptive materials in a facile way. Moreover, it remains a challenge to achieve mechano-regulable materials with mechanical properties ranging from high strength to extreme toughness. Here, inspired by the reversible nanofibril network structure of skeletal muscle to achieve muscle strength regulation, we present a mechano-regulable biopolymeric silk fibroin (SF) composite through regulating dynamic metal-ligand coordination bonds by using water molecules as competitive regulators. Efficient interfacial hydrogen bonds between tannic acid-tungsten disulfide nanohybrids and the SF matrix endow the composite with high mechanical strength and self-healing ability. The resulting composite exhibits 837-fold change in Young's modulus (5.77 ± 0.61 GPa to 6.89 ± 0.64 MPa) after water vapor triggering, high mechanical properties (72.5 ± 6.3 MPa), and excellent self-healing efficiency (nearly 100%). The proof-of-concept ultraconformable iontronic skin and smart actuators are demonstrated, thereby providing a direction for future self-adaptive smart device applications.
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Affiliation(s)
- Jie Cao
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, China
| | - Yuting Wang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, China
| | - Quanquan Guo
- Faculty of Chemistry and Food Chemistry, Center for Advancing Electronics Dresden, Technische Universität Dresden, 01069 Dresden, Germany
| | - Qinke Cui
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, China
| | - Gehong Su
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, China.,College of Science, Sichuan Agricultural University, Xin Kang Road, Yucheng District, Ya'an 625014, P. R. China
| | - Tao Zhou
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, China
| | - Xinxing Zhang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, China
| | - Chuhong Zhang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, China
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31
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Zhang Q, Li K, Li Y, Li Y, Zhang X, Du Y, Tian D. Gradient monolayered porous membrane for liquid manipulation: from fabrication to application. NANOSCALE ADVANCES 2022; 4:3495-3503. [PMID: 36134360 PMCID: PMC9400516 DOI: 10.1039/d2na00421f] [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: 06/29/2022] [Accepted: 07/21/2022] [Indexed: 06/16/2023]
Abstract
The controlled transport of liquid on a smart material surface has important applications in the fields of microreactors, mass and heat transfer, water collection, microfluidic devices and so on. Porous membranes with special wettability have attracted extensive attention due to their unique unidirectional transport behavior, that is, liquid can easily penetrate in one direction while reverse transport is prevented, which shows great potential in functional textiles, fog collection, oil/water separation, sensors, etc. However, many porous membranes are synthesized from multilayer structural materials with poor mechanical properties and are currently prone to delamination, which limits their stability. While a monolayered porous membrane, especially for gradient structure, is an efficient, stable and durable material owing to its good durability and difficult stratification. Therefore, it is of great significance to fabricate a monolayered porous membrane for controllable liquid manipulation. In this minireview, we briefly introduce the classification and fabrication of typical monolayered porous membranes. And the applications of monolayered porous membranes in unidirectional penetration, selective separation and intelligent response are further emphasized and discussed. Finally, the controllable preparation and potential applications of porous membranes are featured and their prospects discussed on the basis of their current development.
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Affiliation(s)
- Qiuya Zhang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, School of Chemistry, Beihang University Beijing 100191 P. R. China
- School of Physics, Beihang University Beijing 100191 P. R. China
| | - Ke Li
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, School of Chemistry, Beihang University Beijing 100191 P. R. China
| | - Yuliang Li
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, School of Chemistry, Beihang University Beijing 100191 P. R. China
| | - Yan Li
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, School of Chemistry, Beihang University Beijing 100191 P. R. China
| | - Xiaofang Zhang
- School of Mathematics and Physics, University of Science & Technology Beijing Beijing 100083 P. R. China
| | - Yi Du
- School of Physics, Beihang University Beijing 100191 P. R. China
| | - Dongliang Tian
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, School of Chemistry, Beihang University Beijing 100191 P. R. China
- Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University Beijing 100191 P. R. China
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32
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Wu J, Wu B, Xiong J, Sun S, Wu P. Entropy‐Mediated Polymer–Cluster Interactions Enable Dramatic Thermal Stiffening Hydrogels for Mechanoadaptive Smart Fabrics. Angew Chem Int Ed Engl 2022; 61:e202204960. [DOI: 10.1002/anie.202204960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Indexed: 11/12/2022]
Affiliation(s)
- Jia Wu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Chemistry Chemical Engineering and Biotechnology & Center for Advanced Low-dimension Materials Donghua University Shanghai 201620 China
| | - Baohu Wu
- Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ) Forschungszentrum Jülich Lichtenbergstr. 1 85748 Garching Germany
| | - Jiaqing Xiong
- Innovation Center for Textile Science and Technology Donghua University Shanghai 201620 China
| | - Shengtong Sun
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Chemistry Chemical Engineering and Biotechnology & Center for Advanced Low-dimension Materials Donghua University Shanghai 201620 China
| | - Peiyi Wu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Chemistry Chemical Engineering and Biotechnology & Center for Advanced Low-dimension Materials Donghua University Shanghai 201620 China
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33
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Yu K, Feng Z, Du H, Lee KH, Li K, Zhang Y, Masri SF, Wang Q. Constructive adaptation of 3D-printable polymers in response to typically destructive aquatic environments. PNAS NEXUS 2022; 1:pgac139. [PMID: 36741439 PMCID: PMC9896903 DOI: 10.1093/pnasnexus/pgac139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 07/27/2022] [Indexed: 02/07/2023]
Abstract
In response to environmental stressors, biological systems exhibit extraordinary adaptive capacity by turning destructive environmental stressors into constructive factors; however, the traditional engineering materials weaken and fail. Take the response of polymers to an aquatic environment as an example: Water molecules typically compromise the mechanical properties of the polymer network in the bulk and on the interface through swelling and lubrication, respectively. Here, we report a class of 3D-printable synthetic polymers that constructively strengthen their bulk and interfacial mechanical properties in response to the aquatic environment. The mechanism relies on a water-assisted additional cross-linking reaction in the polymer matrix and on the interface. As such, the typically destructive water can constructively enhance the polymer's bulk mechanical properties such as stiffness, tensile strength, and fracture toughness by factors of 746% to 790%, and the interfacial bonding by a factor of 1,000%. We show that the invented polymers can be used for soft robotics that self-strengthen matrix and self-heal cracks after training in water and water-healable packaging materials for flexible electronics. This work opens the door for the design of synthetic materials to imitate the constructive adaptation of biological systems in response to environmental stressors, for applications such as artificial muscles, soft robotics, and flexible electronics.
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Affiliation(s)
- Kunhao Yu
- Sonny Astani Department of Civil and Environmental Engineering, University of Southern California, Los Angeles, CA 90089, USA
| | - Zhangzhengrong Feng
- Sonny Astani Department of Civil and Environmental Engineering, University of Southern California, Los Angeles, CA 90089, USA
| | - Haixu Du
- Sonny Astani Department of Civil and Environmental Engineering, University of Southern California, Los Angeles, CA 90089, USA
| | - Kyung Hoon Lee
- Sonny Astani Department of Civil and Environmental Engineering, University of Southern California, Los Angeles, CA 90089, USA
| | - Ketian Li
- Sonny Astani Department of Civil and Environmental Engineering, University of Southern California, Los Angeles, CA 90089, USA
| | - Yanchu Zhang
- Sonny Astani Department of Civil and Environmental Engineering, University of Southern California, Los Angeles, CA 90089, USA
| | - Sami F Masri
- Sonny Astani Department of Civil and Environmental Engineering, University of Southern California, Los Angeles, CA 90089, USA
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34
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Wu J, Wu B, Xiong J, Sun S, Wu P. Entropy‐Mediated Polymer‐Cluster Interactions Enable Dramatic Thermal Stiffening Hydrogels for Mechanoadaptive Smart Fabrics. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jia Wu
- Donghua University Chemistry CHINA
| | - Baohu Wu
- Forschungszentrum Julich ICG: Forschungszentrum Julich GmbH JCNS GERMANY
| | - Jiaqing Xiong
- Donghua University Innovation Center for Textile Science and Technology CHINA
| | | | - Peiyi Wu
- Fudan University Department of Macromolecular Science Handan Road 220 200433 Shanghai CHINA
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35
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Liu K, Zhang W, Zong L, He Y, Zhang X, Liu M, Shi G, Qiao X, Pang X. Dimensional Optimization for ZnO-Based Mechano-ATRP with Extraordinary Activity. J Phys Chem Lett 2022; 13:4884-4890. [PMID: 35617686 DOI: 10.1021/acs.jpclett.2c01106] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Various piezoelectric nanomaterials were utilized in ultrasound-mediated atom transfer radical polymerization (ATRP), owing to their outstanding piezoelectric effect. However, the relationship between the morphology of those piezocatalysts and polymerization has not been clearly established. Herein, we employed different piezoelectric zinc oxide (ZnO) nanomaterials to achieve novel mechano-induced ATRP (mechano-ATRP). Based on the synergistic effect of piezoelectric properties and specific surface area, the catalytic activity of 1D ZnO nanorods (1D-ZnO NRs) with increased aspect ratio outperformed that of 0D ZnO nanoparticles (0D-ZnO NPs). Compared to the conventional ATRP system, this system exhibited extraordinary activity toward the less activated monomer acrylonitrile (67% conversion after 6 h), with a narrow molecular weight distribution (polydispersity index ∼ 1.19). Furthermore, implications of ZnO loading, copper salt amount, degree of polymerization, monomer, and solvent were also studied for the highly efficient mechano-ATRP.
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Affiliation(s)
- Kaixin Liu
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Wenjie Zhang
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Lingxin Zong
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Yanjie He
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaomeng Zhang
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Minying Liu
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Ge Shi
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaoguang Qiao
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
- College of Materials Engineering; Henan International Joint Laboratory of Rare Earth Composite Materials, Henan University of Engineering, Zhengzhou 451191, China
| | - Xinchang Pang
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
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Vilhena JG, Pawlak R, D'Astolfo P, Liu X, Gnecco E, Kisiel M, Glatzel T, Pérez R, Häner R, Decurtins S, Baratoff A, Prampolini G, Liu SX, Meyer E. Flexible Superlubricity Unveiled in Sidewinding Motion of Individual Polymeric Chains. PHYSICAL REVIEW LETTERS 2022; 128:216102. [PMID: 35687435 DOI: 10.1103/physrevlett.128.216102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 02/22/2022] [Accepted: 04/19/2022] [Indexed: 06/15/2023]
Abstract
A combination of low temperature atomic force microcopy and molecular dynamic simulations is used to demonstrate that soft designer molecules realize a sidewinding motion when dragged over a gold surface. Exploiting their longitudinal flexibility, pyrenylene chains are indeed able to lower diffusion energy barriers via on-surface directional locking and molecular strain. The resulting ultralow friction reaches values on the order of tens of pN reported so far only for rigid chains sliding on an incommensurate surface. Therefore, we demonstrate how molecular flexibility can be harnessed to realize complex nanomotion while retaining a superlubric character. This is in contrast with the paradigm guiding the design of most superlubric nanocontacts (mismatched rigid contacting surfaces).
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Affiliation(s)
- J G Vilhena
- Department of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland
- Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
| | - Rémy Pawlak
- Department of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland
| | - Philipp D'Astolfo
- Department of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland
| | - Xunshan Liu
- Department of Chemistry, Zhejiang Sci-tech University, 314423 Hangzhou, China
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Enrico Gnecco
- Marian Smoluchowski Institute of Physics, Jagiellonian University, Lojasiewicza 11, 30-348 Krakow, Poland
| | - Marcin Kisiel
- Department of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland
| | - Thilo Glatzel
- Department of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland
| | - Rúben Pérez
- Departamento de Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
- Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, E-28049 Madrid, Spain
| | - Robert Häner
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Silvio Decurtins
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Alexis Baratoff
- Department of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland
| | - Giacomo Prampolini
- Istituto di Chimica dei Composti Organo Metallici, Consiglio Nazionale delle Ricerche (ICCOM-CNR), 56124 Pisa, Italy
| | - Shi-Xia Liu
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Ernst Meyer
- Department of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland
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37
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Ding C, Yan Y, Peng Y, Wu D, Shen H, Zhang J, Wang Z, Zhang Z. Piezoelectrically Mediated Reversible Addition–Fragmentation Chain-Transfer Polymerization. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00701] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chengqiang Ding
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Yuhan Yan
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Yuhao Peng
- Suzhou Medical College, Soochow University, Suzhou 215123, China
| | - Danming Wu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Hang Shen
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Jiandong Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Zhao Wang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Zhengbiao Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
- State Key Laboratory of Radiation Medicine and Protection, Soochow University, Suzhou 215123, China
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38
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Precision Polymer Synthesis by Controlled Radical Polymerization: Fusing the progress from Polymer Chemistry and Reaction Engineering. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2022.101555] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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39
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Affiliation(s)
- Qianhui Liu
- Department of Materials Science and Engineering, Center for Optical Materials Science and Technologies (COMSET), Clemson University, Clemson, SC, USA
| | - Marek W. Urban
- Department of Materials Science and Engineering, Center for Optical Materials Science and Technologies (COMSET), Clemson University, Clemson, SC, USA
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40
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Qi Y, Zhou C, Qiu Y, Cao X, Niu W, Wu S, Zheng Y, Ma W, Ye H, Zhang S. Biomimetic Janus photonic soft actuator with structural color self-reporting. MATERIALS HORIZONS 2022; 9:1243-1252. [PMID: 35080571 DOI: 10.1039/d1mh01693h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Soft actuators with variable signal/color play an important role in the fields of targeted locomotion, artificial phototropism, drug screening, cargo transportation, and interactive sensing. The ability to achieve rapid response, large curvature, wide bending angle, and full-color display continues to be an unresolved challenge for artificial actuating materials. Inspired by the angle-dependent structural color of broad-tailed hummingbird and the Janus wettability of the lotus leaf, a Janus photonic soft actuator (JPSA) was fabricated by integrating an underwater super-oleophilic copper micro-nano array and oil-phobic inverse opal through a Laplace channel. The JPSA exhibits unidirectional permeability to underwater oil droplets. Attractively, with the combination of a swellable super-oleophilic surface and photonic crystals, JPSAs were endowed with oil-controlled reversible bending behavior with self-reporting angle-dependent color indication. We described for the first time the directional actuating mechanism induced by underwater oil unidirectional penetration and revealed the corresponding actuating kinetics and the inner-stress distribution/transfer by using structural color. As an extension of such theory, a rapid responsive JPSA with a wide bending angle and full-color self-reporting is further fabricated. This work provides an efficient strategy for oil directional transportation and separation in aqueous media and inspires the fabrication of a soft actuator/sensor with structural color self-reporting.
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Affiliation(s)
- Yong Qi
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, P. O. Box 89, West Campus, 2# Linggong Rd, Dalian 116024, China.
| | - Changtong Zhou
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, P. O. Box 89, West Campus, 2# Linggong Rd, Dalian 116024, China.
| | - Yisong Qiu
- International Research Center for Computational Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Faculty of Vehicle Engineering and Mechanics, Dalian University of Technology, 2# Linggong Rd, Dalian 116024, China
| | - Xianfei Cao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, P. O. Box 89, West Campus, 2# Linggong Rd, Dalian 116024, China.
| | - Wenbin Niu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, P. O. Box 89, West Campus, 2# Linggong Rd, Dalian 116024, China.
| | - Suli Wu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, P. O. Box 89, West Campus, 2# Linggong Rd, Dalian 116024, China.
| | - Yonggang Zheng
- International Research Center for Computational Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Faculty of Vehicle Engineering and Mechanics, Dalian University of Technology, 2# Linggong Rd, Dalian 116024, China
| | - Wei Ma
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, P. O. Box 89, West Campus, 2# Linggong Rd, Dalian 116024, China.
| | - Hongfei Ye
- International Research Center for Computational Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Faculty of Vehicle Engineering and Mechanics, Dalian University of Technology, 2# Linggong Rd, Dalian 116024, China
| | - Shufen Zhang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, P. O. Box 89, West Campus, 2# Linggong Rd, Dalian 116024, China.
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41
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Wang X, Sun H, Kim YK, Wright DB, Tsuei M, Gianneschi NC, Abbott NL. Stimuli-Responsive Liquid Crystal Printheads for Spatial and Temporal Control of Polymerization. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2106535. [PMID: 35065542 DOI: 10.1002/adma.202106535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 12/23/2021] [Indexed: 06/14/2023]
Abstract
Polymerization reactions triggered by stimuli play a pivotal role in materials science, with applications ranging from lithography to biomedicine to adaptive materials. However, the development of chemically triggered, stimuli-responsive systems that can confer spatial and temporal control on polymerization remains a challenge. Herein, chemical-stimuli-induced polymerization based on a liquid crystal (LC) printhead is presented. The LC responds to a local chemical stimulus at its aqueous interface, resulting in the ejection of initiator into the solution to trigger polymerization. Various LC printhead geometries are designed, allowing programming of: i) bulk solution polymerization, ii) synthesis of a thin surface-confined polymeric coating, iii) polymerization-induced self-assembly of block copolymers to form various nanostructures (sphere, worm-like, and vesicles), and iv) 3D polymeric structures printed according to local solution conditions. The approach is demonstrated using amphiphiles, multivalent ions, and biomolecules as stimuli.
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Affiliation(s)
- Xin Wang
- Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY, 14850, USA
| | - Hao Sun
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Young-Ki Kim
- Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY, 14850, USA
| | - Daniel B Wright
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - Michael Tsuei
- Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY, 14850, USA
| | | | - Nicholas L Abbott
- Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, NY, 14850, USA
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42
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Stimuli-responsive composite hydrogels with three-dimensional stability prepared using oxidized cellulose nanofibers and chitosan. Carbohydr Polym 2022; 278:118907. [PMID: 34973728 DOI: 10.1016/j.carbpol.2021.118907] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/12/2021] [Accepted: 11/13/2021] [Indexed: 12/25/2022]
Abstract
Stimuli-responsive hydrogels have garnered the attention of the hydrogel industry, as they are able to change their physical and chemical properties based on changing external stimuli such as pH, temperature, ionic strength, electromagnetic fields, and light. However, stimuli-responsive hydrogel applications are hindered due to their inevitable swelling and shrinkage. Bacterial cellulose (BC), a natural hydrogel with tightly packed cellulose nanofibers (CNFs) was oxidized into dialdehyde BC (DABC) and was composited with chitosan (CS), a readily available natural polymer, to develop a mechanically adaptive hydrogel composite under different pH conditions. Composites exhibit pH sensitivity by presenting higher mechanical properties under acidic conditions and lower mechanical properties under basic conditions owing to the protonation of amino groups of the chitosan chains. Osmotic pressure is built up under acidic conditions, increasing the mechanical strength of the composites. The good three-dimensional stability of composites enables them to consistently maintain their volume when exposed to acidic or basic conditions.
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43
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Modulus adaptive lubricating prototype inspired by instant muscle hardening mechanism of catfish skin. Nat Commun 2022; 13:377. [PMID: 35046391 PMCID: PMC8770490 DOI: 10.1038/s41467-022-28038-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Accepted: 01/05/2022] [Indexed: 12/21/2022] Open
Abstract
In nature, living organisms evolve unique functional components with mechanically adaptive compatibility to cater dynamic change of interface friction/lubrication. This mechanism can be used for developing intelligent artificial lubrication-regulation systems. Inspired by the muscle hardening-triggered lubrication of longsnout catfish, here we report a modulus adaptive lubricating hydrogel prototype consisting of top mucus-like hydrophilic lubricating layer and muscle-like bottom hydrogel that can stiffen via thermal-triggered phase separation. It exhibits instant switch from soft/high frictional state (~0.3 MPa, μ~0.37) to stiff/lubricating state (~120 MPa, μ~0.027) in water upon heating up. Such switchable lubrication is effective for wide range of normal loads and attributed to the modulus-dominated adaptive contact mechanism. As a proof-of-concept, switchable lubricating hydrogel bullets and patches are engineered for realizing controllable interface movements. These important results demonstrate potential applications in the fields of intelligent motion devices and soft robots. Stimuli responsive materials are interesting for applications in different technological fields, but realizing controllable surface friction-control based on the change of the modulus of a material is less investigated. Here the authors demonstrate a lubrication regulating strategy and prototype based on thermally triggered changes of the modulus of a hydrogel.
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44
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Wang C, Fan W, Li Z, Xiong J, Zhang W, Wang Z. Sonochemistry-assisted photocontrolled atom transfer radical polymerization enabled by manganese carbonyl. Polym Chem 2022. [DOI: 10.1039/d2py00682k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Sonochemistry-assisted photocontrolled atom transfer radical polymerization (SAP-ATRP) is developed to circumvent the problem caused by the low penetration depth of light.
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Affiliation(s)
- Chen Wang
- Frontiers Science Center for Flexible Electronics & Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University, Xi'an 710072, China
| | - Wenru Fan
- Frontiers Science Center for Flexible Electronics & Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University, Xi'an 710072, China
| | - Zexuan Li
- Frontiers Science Center for Flexible Electronics & Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University, Xi'an 710072, China
| | - Jiaqiang Xiong
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Wei Zhang
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Zhenhua Wang
- Frontiers Science Center for Flexible Electronics & Xi'an Institute of Biomedical Materials and Engineering (IBME), Northwestern Polytechnical University, Xi'an 710072, China
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45
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Chen W, Zhang C, Chen D, Li Y, Wu S, Xu C, Su L, Zhang Q. Tumor redox microenvironment modulating composite hydrogels for enhanced sonodynamic therapy of colorectal cancer. J Mater Chem B 2022; 10:1960-1968. [DOI: 10.1039/d2tb00170e] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Effective treatment of colorectal cancer is important to improve the quality of life for patients, which however remains a great challenge in the clinic. Herein, we report the construction of...
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46
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Zeitler SM, Chakma P, Golder MR. Diaryliodonium Salts Facilitate Metal-Free Mechanoredox Free Radical Polymerizations. Chem Sci 2022; 13:4131-4138. [PMID: 35440983 PMCID: PMC8985515 DOI: 10.1039/d2sc00313a] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 03/15/2022] [Indexed: 11/21/2022] Open
Abstract
Mechanically-induced redox processes offer a promising alternative to more conventional thermal and photochemical synthetic methods. For macromolecule synthesis, current methods utilize sensitive transition metal additives and suffer from background reactivity....
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Affiliation(s)
- Sarah M Zeitler
- Department of Chemistry, Molecular Engineering & Science Institute, University of Washington 36 Bagley Hall Seattle WA 98195 USA
| | - Progyateg Chakma
- Department of Chemistry, Molecular Engineering & Science Institute, University of Washington 36 Bagley Hall Seattle WA 98195 USA
| | - Matthew R Golder
- Department of Chemistry, Molecular Engineering & Science Institute, University of Washington 36 Bagley Hall Seattle WA 98195 USA
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47
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He J, Yi Z, Chen Q, Li Z, Hu J, Zhu M. Piezoelectric polarization of MIL-100(Fe) by harvesting mechanical energy for cocatalyst-free H2 evolution. Chem Commun (Camb) 2022; 58:10723-10726. [DOI: 10.1039/d2cc03976a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To suit the emergency of a new strategy for hydrogen (H2) evolution, a metal–organic framework (MIL-100(Fe)) is applied in the piezoelectric-driven process for catalytic H2 generation. Herein, MIL-100(Fe) was firstly...
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48
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Soft features for robotics. NATURE MATERIALS 2021; 20:1581. [PMID: 34815570 DOI: 10.1038/s41563-021-01165-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
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49
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Qi J, Yu T, Hu B, Wu H, Ouyang H. Current Biomaterial-Based Bone Tissue Engineering and Translational Medicine. Int J Mol Sci 2021; 22:10233. [PMID: 34638571 PMCID: PMC8508818 DOI: 10.3390/ijms221910233] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/14/2021] [Accepted: 09/19/2021] [Indexed: 11/16/2022] Open
Abstract
Bone defects cause significant socio-economic costs worldwide, while the clinical "gold standard" of bone repair, the autologous bone graft, has limitations including limited graft supply, secondary injury, chronic pain and infection. Therefore, to reduce surgical complexity and speed up bone healing, innovative therapies are needed. Bone tissue engineering (BTE), a new cross-disciplinary science arisen in the 21st century, creates artificial environments specially constructed to facilitate bone regeneration and growth. By combining stem cells, scaffolds and growth factors, BTE fabricates biological substitutes to restore the functions of injured bone. Although BTE has made many valuable achievements, there remain some unsolved challenges. In this review, the latest research and application of stem cells, scaffolds, and growth factors in BTE are summarized with the aim of providing references for the clinical application of BTE.
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Affiliation(s)
- Jingqi Qi
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China;
- Zhejiang University-University of Edinburgh Institute, Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Tianqi Yu
- Department of Mechanical Engineering, Zhejiang University-University of Illinois at Urbana-Champaign Institute, Zhejiang University, Haining 314400, China;
| | - Bangyan Hu
- Section of Molecular and Cell Biology, Division of Biological Sciences, University of California San Diego, La Jolla, CA 92093, USA;
| | - Hongwei Wu
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China;
- Zhejiang University-University of Edinburgh Institute, Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Hongwei Ouyang
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China;
- Zhejiang University-University of Edinburgh Institute, Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou 310003, China
- Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou 310003, China
- China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou 310003, China
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50
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Ayarza J, Wang Z, Wang J, Esser-Kahn AP. Mechanically Promoted Synthesis of Polymer Organogels via Disulfide Bond Cross-Linking. ACS Macro Lett 2021; 10:799-804. [PMID: 35549197 DOI: 10.1021/acsmacrolett.1c00337] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Mechanically adaptive polymers could significantly improve the life-cycle of current materials. Piezo-polymerization is a novel approach that harnesses vibrational mechanical energy through piezoelectric nanoparticles to generate chemical promoters for linear polymerization and cross-linking reactions. However, the available piezo-polymerization systems rely on reactions forming irreversible covalent bonds. Dynamic covalent linkages could impart further adaptability to these polymeric systems. Here we show the first example of the piezoelectrochemical synthesis of disulfide bonds to form organogels from polymers with thiol side groups. We demonstrate that the reaction proceeds via piezo-oxidation of the thiol to disulfide in the presence of ZnO nanoparticles and iodide anions under mechanical agitation. We use mechanical energy in the form of ultrasound (40 kHz) and low frequency vibrations (2 kHz) to synthesize a variety of organogels from common synthetic polymers. Additionally, we show that the polymers in these gels can be chemically recycled with a reducing agent. Finally, we study the thermal and mechanical properties of the composites obtained after drying the gels. We believe this new system adds to the piezo-polymerization repertoire and serves as the basis to fabricate mechanically adaptive polymeric materials via dynamic covalent bonds.
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Affiliation(s)
- Jorge Ayarza
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Zhao Wang
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Jun Wang
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Aaron P. Esser-Kahn
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
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