1
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Tang J, Xing T, Chen S, Feng J. A Shape Memory Hydrogel with Excellent Mechanical Properties, Water Retention Capacity, and Tunable Fluorescence for Dual Encryption. Small 2024; 20:e2305928. [PMID: 37986102 DOI: 10.1002/smll.202305928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 11/03/2023] [Indexed: 11/22/2023]
Abstract
Information encryption platforms with reliable encryption performance, excellent mechanical performance, and high water retention capacity are highly desired. In this study, a tough double-network hydrogel is designed using the first network of a polyion complex containing lanthanide complexes via one-pot polymerization and the second network of a poly (N-hydroxyethyl acrylamide) (PHEAA) obtained by deep eutectic solvent (DES)-assisted introduction and subsequent photopolymerization. In this system, the pH-induced shape memory function and pH-/wavelength-dependent fluorescence allow the use of the prepared hydrogel as a dual-encryption platform. Owing to its high response reversibility, the hydrogel-based platform exhibits both a high security level and the advantages of rewritability, reprogrammability, and reusability. Additionally, the excellent mechanical properties and water retention capacity owing to the solvent exchange process involving the low-volatility solvent DES and the resulting introduction of the second network of PHEAA offer high practical application value for the hydrogel-based dual encryption platform, demonstrating its potential for information security protection.
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Affiliation(s)
- Junyi Tang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
| | - Tianyu Xing
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
| | - Sijia Chen
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
| | - Jiachun Feng
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200433, China
- Yiwu Research Institute of Fudan University, Yiwu City, Zhejiang, 322000, China
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2
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Petelinšek N, Mommer S. Tough Hydrogels for Load-Bearing Applications. Adv Sci (Weinh) 2024; 11:e2307404. [PMID: 38225751 DOI: 10.1002/advs.202307404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/08/2023] [Indexed: 01/17/2024]
Abstract
Tough hydrogels have emerged as a promising class of materials to target load-bearing applications, where the material has to resist multiple cycles of extreme mechanical impact. A variety of chemical interactions and network architectures are used to enhance the mechanical properties and fracture mechanics of hydrogels making them stiffer and tougher. In recent years, the mechanical properties of tough, high-performance hydrogels have been benchmarked, however, this is often incomplete as important variables like water content are largely ignored. In this review, the aim is to clarify the reported mechanical properties of state-of-the-art tough hydrogels by providing a comprehensive library of fracture and mechanical property data. First, common methods for mechanical characterization of such high-performance hydrogels are introduced. Then, various modes of energy dissipation to obtain tough hydrogels are discussed and used to categorize the individual datasets helping to asses the material's (fracture) mechanical properties. Finally, current applications are considered, tough high-performance hydrogels are compared with existing materials, and promising future opportunities are discussed.
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Affiliation(s)
- Nika Petelinšek
- Macromolecular Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, Zurich, 8092, Switzerland
| | - Stefan Mommer
- Macromolecular Engineering Laboratory, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, Zurich, 8092, Switzerland
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3
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Wang XQ, Xie AQ, Cao P, Yang J, Ong WL, Zhang KQ, Ho GW. Structuring and Shaping of Mechanically Robust and Functional Hydrogels toward Wearable and Implantable Applications. Adv Mater 2024:e2309952. [PMID: 38389497 DOI: 10.1002/adma.202309952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 02/16/2024] [Indexed: 02/24/2024]
Abstract
Hydrogels possess unique features such as softness, wetness, responsiveness, and biocompatibility, making them highly suitable for biointegrated applications that have close interactions with living organisms. However, conventional man-made hydrogels are usually soft and brittle, making them inferior to the mechanically robust biological hydrogels. To ensure reliable and durable operation of biointegrated wearable and implantable devices, mechanical matching and shape adaptivity of hydrogels to tissues and organs are essential. Recent advances in polymer science and processing technologies have enabled mechanical engineering and shaping of hydrogels for various biointegrated applications. In this review, polymer network structuring strategies at micro/nanoscales for toughening hydrogels are summarized, and representative mechanical functionalities that exist in biological materials but are not easily achieved in synthetic hydrogels are further discussed. Three categories of processing technologies, namely, 3D printing, spinning, and coating for fabrication of tough hydrogel constructs with complex shapes are reviewed, and the corresponding hydrogel toughening strategies are also highlighted. These developments enable adaptive fabrication of mechanically robust and functional hydrogel devices, and promote application of hydrogels in the fields of biomedical engineering, bioelectronics, and soft robotics.
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Affiliation(s)
- Xiao-Qiao Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - An-Quan Xie
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Pengle Cao
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Jian Yang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Wei Li Ong
- Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore, 117583, Singapore
| | - Ke-Qin Zhang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou, 215123, China
| | - Ghim Wei Ho
- Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore, 117583, Singapore
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4
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Sun Z, Dong C, Chen B, Li W, Hu H, Zhou J, Li C, Huang Z. Strong, Tough, and Anti-Swelling Supramolecular Conductive Hydrogels for Amphibious Motion Sensors. Small 2023; 19:e2303612. [PMID: 37394709 DOI: 10.1002/smll.202303612] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 06/20/2023] [Indexed: 07/04/2023]
Abstract
Conductive polymer hydrogels (CPHs) are widely employed in emerging flexible electronic devices because they possess both the electrical conductivity of conductors and the mechanical properties of hydrogels. However, the poor compatibility between conductive polymers and the hydrogel matrix, as well as the swelling behavior in humid environments, greatly compromises the mechanical and electrical properties of CPHs, limiting their applications in wearable electronic devices. Herein, a supramolecular strategy to develop a strong and tough CPH with excellent anti-swelling properties by incorporating hydrogen, coordination bonds, and cation-π interactions between a rigid conducting polymer and a soft hydrogel matrix is reported. Benefiting from the effective interactions between the polymer networks, the obtained supramolecular hydrogel has homogeneous structural integrity, exhibiting remarkable tensile strength (1.63 MPa), superior elongation at break (453%), and remarkable toughness (5.5 MJ m-3 ). As a strain sensor, the hydrogel possesses high electrical conductivity (2.16 S m-1 ), a wide strain linear detection range (0-400%), and excellent sensitivity (gauge factor = 4.1), sufficient to monitor human activities with different strain windows. Furthermore, this hydrogel with high swelling resistance has been successfully applied to underwater sensors for monitoring frog swimming and underwater communication. These results reveal new possibilities for amphibious applications of wearable sensors.
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Affiliation(s)
- Zhiyuan Sun
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518000, P. R. China
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Chao Dong
- Chemistry and Physics Department, College of Art and Science, The University of Texas of Permian Basin, Odessa, TX, 79762, USA
| | - Bingda Chen
- Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Beijing Engineering Research Center of Nanomaterials for Green Printing Technology, Beijing National Laboratory for Molecular Sciences (BNLMS), Zhongguancun North First Street 2, Beijing, 100190, P. R. China
| | - Wenbo Li
- AECC Beijing Institute of Aeronautical Materials, Beijing, 100095, P. R. China
| | - Huiyuan Hu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518000, P. R. China
- Guangdong Polytechnic of Science and Technology, Zhuhai, 519090, P. R. China
| | - Jinsheng Zhou
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, 518000, P. R. China
| | - Chong Li
- Guangdong Polytechnic of Science and Technology, Zhuhai, 519090, P. R. China
| | - Zhandong Huang
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
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5
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Fonseca RG, Kuster A, Fernandes PP, Tavakoli M, Pereira P, Fernandes JR, De Bon F, Serra AC, Fonseca AC, Coelho JFJ. Facile Synthesis of Highly Stretchable, Tough, and Photodegradable Hydrogels. Adv Healthc Mater 2023; 12:e2300918. [PMID: 37133868 DOI: 10.1002/adhm.202300918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Indexed: 05/04/2023]
Abstract
Recently, highly stretchable and tough hydrogels that are photodegradable on-demand have been reported. Unfortunately, the preparation procedure is complex due to the hydrophobic nature of the photocrosslinkers. Herein, a simple method is reported to prepare photodegradable double-network (DN) hydrogels that exhibit high stretchability, toughness, and biocompatibility. Hydrophilic ortho-nitrobenzyl (ONB) crosslinkers incorporating different poly(ethylene glycol) (PEG) backbones (600, 1000, and 2000 g mol-1 ) are synthesized. These photodegradable DN hydrogels are prepared by the irreversible crosslinking of chains by using such ONB crosslinkers, and the reversible ionic crosslinking between sodium alginate and divalent cations (Ca2+ ). Remarkable mechanical properties are obtained by combining ionic and covalent crosslinking and their synergistic effect, and by reducing the length of the PEG backbone. The rapid on-demand degradation of these hydrogels is also demonstrated by using cytocompatible light wavelength (λ = 365 nm) that degrades the photosensitive ONB units. The authors have successfully used these hydrogels as skin-worn sensors for monitoring human respiration and physical activities. A combination of excellent mechanical properties, facile fabrication, and on-demand degradation holds promise for their application as the next generation of substrates or active sensors eco-friendly for bioelectronics, biosensors, wearable computing, and stretchable electronics.
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Affiliation(s)
- Rita G Fonseca
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, Coimbra, 3030-790, Portugal
| | - Aline Kuster
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, Coimbra, 3030-790, Portugal
| | - Pedro P Fernandes
- Soft and Printed Microelectronics Lab, Department of Electrical Engineering, University of Coimbra, Coimbra, 3030-194, Portugal
| | - Mahmoud Tavakoli
- Soft and Printed Microelectronics Lab, Department of Electrical Engineering, University of Coimbra, Coimbra, 3030-194, Portugal
| | - Patrícia Pereira
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, Coimbra, 3030-790, Portugal
- IPN - Instituto Pedro Nunes, Associação para a Inovação e Desenvolvimento em Ciência e Tecnologia, Rua Pedro Nunes, Coimbra, 3030-199, Portugal
| | - José R Fernandes
- Chemical Centre - Vila Real (CQVR), Physics Department, School of Science and Technology, University of Trás-os-Montes e Alto Douro, Vila Real, 5000-801, Portugal
| | - Francesco De Bon
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, Coimbra, 3030-790, Portugal
| | - Arménio C Serra
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, Coimbra, 3030-790, Portugal
| | - Ana C Fonseca
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, Coimbra, 3030-790, Portugal
| | - Jorge F J Coelho
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, Coimbra, 3030-790, Portugal
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6
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Chen H, Wei P, Qi Y, Xie Y, Huang X. Water-Induced Cellulose Nanofibers/Poly(vinyl alcohol) Hydrogels Regulated by Hydrogen Bonding for In Situ Water Shutoff. ACS Appl Mater Interfaces 2023; 15:39883-39895. [PMID: 37578297 DOI: 10.1021/acsami.3c07989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Hydrogels have been widely applied to the water shutoff in oilfields due to their excellent three-dimensional network and thermal and physicochemical stability, and it is still a huge challenge to develop new hydrogels with simple preparation, low cost, and high mechanical performance that can meet the requirements of practical applications. Herein, we devised a simple and universal manufacturing method for regulating the hydrogen bonds between poly(vinyl alcohol) (PVA) and cellulose nanofibers (CNF) via the water-diffusion action, thus fabricating a physically tough PVA-CNF hydrogel for the in situ water shutoff. This method allowed the polymer chains to strengthen the molecular interactions between polymers upon replacing with water (a poor solvent) to regulate the cross-linking structure, characterizing by the nano-crystallinity domains and fibrillar segments, which also accounted for the thermal stability, extraordinary elasticity, high stretchability, and toughness of PVA-CNF hydrogel. Further, the obtained PVA-CNF hydrogel exhibited superb plugging performance, that is, the breakthrough pressure gradient could reach 71.56 MPa·m-1, surpassing all currently reported gelling water shutoff agents. This water-induced in situ hydrogelation made it well suited as a water shutoff agent in oilfields and may provide a promising strategy to fabricate mechanically robust smart materials for the water shutoff projects with low cost, simple processing, and high efficiency.
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Affiliation(s)
- Hongjie Chen
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources & MOE Key Laboratory of Oil and Gas Fine Chemicals, College of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China
| | - Peng Wei
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources & MOE Key Laboratory of Oil and Gas Fine Chemicals, College of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China
| | - Ying Qi
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources & MOE Key Laboratory of Oil and Gas Fine Chemicals, College of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China
| | - Yahong Xie
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources & MOE Key Laboratory of Oil and Gas Fine Chemicals, College of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China
| | - Xueli Huang
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources & MOE Key Laboratory of Oil and Gas Fine Chemicals, College of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China
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7
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Peng Z, Xue H, Liu X, Wang S, Liu G, Jia X, Zhu Z, Orvy MJ, Yang Y, Wang Y, Zhang D, Tong L. Tough, adhesive biomimetic hyaluronic acid methacryloyl hydrogels for effective wound healing. Front Bioeng Biotechnol 2023; 11:1222088. [PMID: 37539434 PMCID: PMC10395096 DOI: 10.3389/fbioe.2023.1222088] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 07/10/2023] [Indexed: 08/05/2023] Open
Abstract
The development of cost-effective, biocompatible soft wound dressings is highly desirable; however, conventional dressings are only designed for flat wounds, which creates difficulty with promising healing efficiency in complex practical conditions. Herein, we developed a tough, adhesive biomimetic hyaluronic acid methacryloyl hydrogels composed of chemically crosslinked hyaluronic acid methacryloyl (HAMA) network and poly(N-hydroxyethyl acrylamide) (PHEAA) network rich in multiple hydrogen bonding. Due to the multiple chemical crosslinking sites (acrylamide groups) of HAMA; the bulk HEMA/PHEAA hydrogels presented significant enhancements in mechanical properties (∼0.45 MPa) than common hyaluronic acid hydrogels (<0.1 MPa). The abundant hydrogen bonding also endowed the resultant hydrogels with extremely high adhesiveness on many nonporous substrates, including glass and biological tissues (e.g., heart, liver, lung, kidney, stomach, and muscle), with a considerable interfacial toughness of ∼1432 J m-2. Accordingly, since both natural hyaluronic acid derivative polymers and hydrophilic PHEAA networks are highly biocompatible, the hydrogel matrix possesses good blood compatibility (<5% of hemolysis ratio) and satisfies the general dressing requirements (>99% of cell viability). Based on these physicochemical features, we have demonstrated that this adhesive hydrogel, administered in the form of a designed patch, could be applied to wound tissue healing by promoting epithelialization, angiogenesis, and collagen deposition. We believe that our proposed biomimetic hydrogel design holds great potential for wound repair and our developed HAMA/PHEAA hydrogels are extremely promising for the next-generation tissue healings in emergency situations.
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Affiliation(s)
- Zhiwei Peng
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Huai Xue
- Xuzhou Medical University, Xuzhou, China
- Department of Emergency, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Xiao Liu
- Department of Emergency, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Shuguang Wang
- Department of Emergency, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Guodong Liu
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Xinghai Jia
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Ziqiang Zhu
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Moontarij Jahan Orvy
- Department of Chemical and Petroleum Engineering, UCSI University, Kuala Lumpur, Malaysia
| | - Yin Yang
- Tianjin Food Safety Inspection Technology Institute, Tianjin, China
| | - Yunqing Wang
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Dong Zhang
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, United States
| | - Lei Tong
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
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8
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Yan Y, Duan S, Liu B, Wu S, Alsaid Y, Yao B, Nandi S, Du Y, Wang TW, Li Y, He X. Tough Hydrogel Electrolytes for Anti-Freezing Zinc-Ion Batteries. Adv Mater 2023; 35:e2211673. [PMID: 36932878 DOI: 10.1002/adma.202211673] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/04/2023] [Indexed: 05/05/2023]
Abstract
As the soaring demand for energy storage continues to grow, batteries that can cope with extreme conditions are highly desired. Yet, existing battery materials are limited by weak mechanical properties and freeze-vulnerability, prohibiting safe energy storage in devices that are exposed to low temperature and unusual mechanical impacts. Herein, a fabrication method harnessing the synergistic effect of co-nonsolvency and "salting-out" that can produce poly(vinyl alcohol) hydrogel electrolytes with unique open-cell porous structures, composed of strongly aggregated polymer chains, and containing disrupted hydrogen bonds among free water molecules, is introduced. The hydrogel electrolyte simultaneously combines high strength (tensile strength 15.6 MPa), freeze-tolerance (< -77 °C), high mass transport (10× lower overpotential), and dendrite and parasitic reactions suppression for stable performance (30 000 cycles). The high generality of this method is further demonstrated with poly(N-isopropylacrylamide) and poly(N-tertbutylacrylamide-co-acrylamide) hydrogels. This work takes a further step toward flexible battery development for harsh environments.
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Affiliation(s)
- Yichen Yan
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Sidi Duan
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Bo Liu
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Shuwang Wu
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Yousif Alsaid
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Bowen Yao
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Sunny Nandi
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- Department of Physics, Tezpur University, Assam, 784028, India
| | - Yingjie Du
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Ta-Wei Wang
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Yuzhang Li
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Ximin He
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- California Nanosystems Institute, Los Angeles, CA, 90095, USA
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9
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Wang H, Cheng J, Sun F, Dou X, Liu J, Wang Y, Li M, Gao J, Liu X, Wang X, Yang F, Zhu Z, Shen H, Zhang L, Tang P, Wu D. A Super Tough, Rapidly Biodegradable, Ultrafast Hemostatic Bioglue. Adv Mater 2023; 35:e2208622. [PMID: 36579739 DOI: 10.1002/adma.202208622] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 11/24/2022] [Indexed: 06/17/2023]
Abstract
Death happening due to massive hemorrhage has been involved in military conflicts, traffic accidents, and surgical injuries of various human disasters. Achieving rapid and effective hemostasis to save lives is crucial in urgent massive bleeding situations. Herein, a covalent cross-linked AG-PEG glue based on extracellular matrix-like amino-gelatin (AG) and PEG derivatives is developed. The AG-PEG glue gelatinizes fast and exhibits firm and indiscriminate close adhesion with various moist tissues upon being dosed. The formed glue establishes an adhesive and robust barrier to seal the arterial, hepatic, and cardiac hemorrhagic wounds, enabling it to withstand up to 380 mmHg blood pressure in comparison with normal systolic blood pressure of 60-180 mmHg. Remarkably, massive bleeding from a pig cardiac penetrating hole with 6 mm diameter is effectively stopped using the glue within 60 s. Postoperative indexes of the treated pig gradually recover and the cardiac wounds regrow significantly at 14 days. Possessing on-demand solubility, self-gelling, and rapid degradability, the AG-PEG glue may provide a fascinating stop-bleeding approach for clinical hemostasis and emergency rescue.
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Affiliation(s)
- Hufei Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Junyao Cheng
- Senior Department of Orthopedics, National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Chinese PLA General Hospital, Beijing, 100853, China
| | - Feifei Sun
- CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Xueyu Dou
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, China
| | - Jianheng Liu
- Senior Department of Orthopedics, National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Chinese PLA General Hospital, Beijing, 100853, China
| | - Yiru Wang
- Department of Ultrasound, First Medical Center, Chinese PLA General Hospital, Beijing, 100853, China
| | - Ming Li
- Senior Department of Orthopedics, National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Chinese PLA General Hospital, Beijing, 100853, China
| | - Jianpeng Gao
- Senior Department of Orthopedics, National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Chinese PLA General Hospital, Beijing, 100853, China
| | - Xiao Liu
- Senior Department of Orthopedics, National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Chinese PLA General Hospital, Beijing, 100853, China
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fei Yang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ziran Zhu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hong Shen
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Licheng Zhang
- Senior Department of Orthopedics, National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Chinese PLA General Hospital, Beijing, 100853, China
| | - Peifu Tang
- Senior Department of Orthopedics, National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Chinese PLA General Hospital, Beijing, 100853, China
| | - Decheng Wu
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, China
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
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10
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Koh E, Freedman BR, Ramazani F, Gross J, Graham A, Kuttler A, Weber E, Mooney DJ. Controlled Delivery of Corticosteroids Using Tunable Tough Adhesives. Adv Healthc Mater 2023; 12:e2201000. [PMID: 36285360 PMCID: PMC11046305 DOI: 10.1002/adhm.202201000] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 09/27/2022] [Indexed: 01/26/2023]
Abstract
Hydrogel-based drug delivery systems typically aim to release drugs locally to tissue in an extended manner. Tissue adhesive alginate-polyacrylamide tough hydrogels are recently demonstrated to serve as an extended-release system for the corticosteroid triamcinolone acetonide. Here, the stimuli-responsive controlled release of triamcinolone acetonide from the alginate-polyacrylamide tough hydrogel drug delivery systems (TADDS) and evolving new approaches to combine alginate-polyacrylamide tough hydrogel with drug-loaded nano and microparticles, generating composite TADDS is described. Stimulation with ultrasound pulses or temperature changes is demonstrated to control the release of triamcinolone acetonide from the TADDS. The incorporation of laponite nanoparticles or PLGA microparticles into the tough hydrogel is shown to further enhance the versatility to control and modulate the release of triamcinolone acetonide. A first technical exploration of a TADDS shelf-life concept is performed using lyophilization, where lyophilized TADDS are physically stable and the bioactive integrity of released triamcinolone acetonide is demonstrated. Given the tunability of properties, the TADDS are a suggested technology platform for controlled drug delivery.
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Affiliation(s)
- Esther Koh
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
| | - Benjamin R Freedman
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Farshad Ramazani
- Novartis Pharma AG, Technical Research and Development, Basel, 4056, Switzerland
| | - Johannes Gross
- Novartis Pharma AG, Technical Research and Development, Basel, 4056, Switzerland
| | - Adam Graham
- Center for Nanoscale Systems, Harvard University, Cambridge, MA, 02138, USA
| | - Andreas Kuttler
- Novartis Institutes for Biomedical Research, Basel, 4056, Switzerland
| | - Eckhard Weber
- Novartis Institutes for Biomedical Research, Basel, 4056, Switzerland
| | - David J Mooney
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
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11
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Dong M, Han Y, Hao XP, Yu HC, Yin J, Du M, Zheng Q, Wu ZL. Digital Light Processing 3D Printing of Tough Supramolecular Hydrogels with Sophisticated Architectures as Impact-Absorption Elements. Adv Mater 2022; 34:e2204333. [PMID: 35763430 DOI: 10.1002/adma.202204333] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 06/08/2022] [Indexed: 06/15/2023]
Abstract
Processing tough hydrogels into sophisticated architectures is crucial for their applications as structural elements. However, Digital Light Processing (DLP) printing of tough hydrogels is challenging because of the low-speed gelation and toughening process. Described here is a simple yet versatile system suitable for DLP printing to form tough hydrogel architectures. The aqueous precursor consists of commercial photoinitiator, acrylic acid, and zirconium ion (Zr4+ ), readily forming tough metallo-supramolecular hydrogel under digital light because of in situ formation of carboxyl-Zr4+ coordination complexes. The high-stiffness and antiswelling properties of as-printed gel enable high-efficiency printing to form high-fidelity constructs. Furthermore, swelling-induced morphing of the gel is also achieved by encoding structure gradients during the printing with grayscale digital light. Mechanical properties of the printed hydrogels are further improved after incubation in water due to the variation of local pH and rearrangement of coordination complex. The swelling-enhanced stiffness affords the printed hydrogel with shape fixation ability after manual deformations, and thereby provides an additional avenue to form more complex configurations. These printed hydrogels are used to devise an impact-absorption element or a high-sensitivity pressure sensor as proof-of-concept examples. This work should merit engineering of other tough gels and extend their scope of applications in diverse fields.
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Affiliation(s)
- Min Dong
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Ying Han
- The State Key Laboratory of Fluid Power and Mechatronic Systems, Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Xing Peng Hao
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Hai Chao Yu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Jun Yin
- The State Key Laboratory of Fluid Power and Mechatronic Systems, Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Miao Du
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Qiang Zheng
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Zi Liang Wu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
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12
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Wei J, Zhang B, Zhang P, Wei H, Yu Y. Bifunctional Phenol-enabled Sequential Polymerization Strategy for Printable Tough Hydrogels. Macromol Rapid Commun 2022; 43:e2200419. [PMID: 35748664 DOI: 10.1002/marc.202200419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 06/21/2022] [Indexed: 11/08/2022]
Abstract
Hydrogels are promising material candidates in engineering soft robotics, mechanical sensors, biomimetic regenerative medicine, etc. However, developing multinetwork hydrogels with high mechanical properties and excellent printability is still challenging. Here, we report a bifunctional phenol-enabled sequential polymerization (BPSP) strategy to fabricate high-performance multinetwork hydrogels under the orthogonal catalysis of efficient ruthenium photochemistry. Benefiting from this bifunctional design, phenols can sequentially polymerize with typical monomers and themselves to fabricate various phenol-containing polymers (Ph-Ps) and Ph-Ps-based multinetwork tough hydrogels, respectively. The as-prepared hydrogels have maximum stress of 0.75 MPa and toughness of 2.2 MJ/m3 under the critical strain of 800%. These property parameters are a maximum of 16 times higher than that of the phenol-postmodified and phenol-free hydrogels. Moreover, the rapid coupling polymerization of phenols can shorten the gelation times of hydrogels to as low as ∼4 s, which enables its printable property for customizable applications. As a proof of concept, a 3D scaffold-like structure is optimized as highly sensitive mechanical sensors for detecting various human motions. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Jiayi 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, 710069, 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, 710069, 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, 710069, 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, 710069, China
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13
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Kim YW, Kim DY, Sun JY. Fracture Toughness and Blocking Force of Temperature-Sensitive PolyNIPAAm and Alginate Hybrid Gels. Gels 2022; 8:324. [PMID: 35621622 DOI: 10.3390/gels8050324] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/17/2022] [Accepted: 05/18/2022] [Indexed: 01/27/2023] Open
Abstract
In the field of actuator materials, hydrogels that undergo large volume changes in response to external stimuli have been developed for a variety of promising applications. However, most conventional hydrogels are brittle and therefore rupture when they are stretched to moderate strains (~50%). Thus, gels to be used for actuators still require improved mechanical properties and actuation performance. In this study, we synthesized a tough and thermo-sensitive hydrogel with a large actuation force by forming interpenetrating networks between covalently crosslinked poly(N-isopropylacrylamide) and ionically crosslinked alginate. Poly(N-isopropylacrylamide) was used as a thermo-sensitive actuation material, and alginate was found to enhance the mechanical properties of the hydrogels. Due to the enhanced elastic modulus and energy dissipation in the hybrid gel, the toughness was increased by a factor of 60 over that of pure PNIPAAm gel. Further, based on the results showing that the hybrid gel exhibits an actuation force that is seven times higher than that of pure PNIPAAm gel, the hybrid gel is more applicable to real actuators.
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14
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Smith PT, Altin G, Millik SC, Narupai B, Sietz C, Park JO, Nelson A. Methacrylated Bovine Serum Albumin and Tannic Acid Composite Materials for Three-Dimensional Printing Tough and Mechanically Functional Parts. ACS Appl Mater Interfaces 2022; 14:21418-21425. [PMID: 35471016 DOI: 10.1021/acsami.2c01446] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Nature uses proteins as building blocks to create three-dimensional (3D) structural components (like spiderwebs and tissue) that are recycled within a closed loop. Furthermore, it is difficult to replicate the mechanical properties of these 3D architectures within synthetic systems. In the absence of biological machinery, protein-based materials can be difficult to process and can have a limited range of mechanical properties. Herein, we present an additive manufacturing workflow to fabricate tough, protein-based composite hydrogels and bioplastics with a range of mechanical properties. Briefly, methacrylated bovine-serum-albumin-based aqueous resins were 3D-printed using a commercial vat photopolymerization system. The printed structures were then treated with tannic acid to introduce additional non-covalent interactions and form tough hydrogels. The hydrogel material could be sutured and withstand mechanical load, even after immersion in water for 24 h. Additionally, a denaturing thermal cure could be used to virtually eliminate rehydration of the material and form a bioplastic. To highlight the functionality of this material, a bioplastic screw was 3D-printed and driven into wood without damage to the screw. Moreover, the 3D-printed constructs enzymatically degraded up to 85% after 30 days in pepsin solution. Thus, these protein-based 3D-printed constructs show great potential for biomedical devices that degrade in situ.
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Affiliation(s)
- Patrick T Smith
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Gokce Altin
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - S Cem Millik
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Benjaporn Narupai
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Cameron Sietz
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - James O Park
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Alshakim Nelson
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
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15
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Zhang X, Xiang J, Hong Y, Shen L. Recent Advances in Design Strategies of Tough Hydrogels. Macromol Rapid Commun 2022; 43:e2200075. [PMID: 35436378 DOI: 10.1002/marc.202200075] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 04/05/2022] [Indexed: 11/10/2022]
Abstract
Hydrogels are a fascinating class of materials popular in numerous fields, including tissue engineering, drug delivery, soft robotics, and sensors, attributed to their 3D network porous structure containing a significant amount of water. However, traditional hydrogels exhibit poor mechanical strength, limiting their practical applications. Thus, many researchers have focused on the development of mechanically enhanced hydrogels. This review describes the design considerations for constructing tough hydrogels and some of the latest strategies in recent years. These tough hydrogels have an up-and-coming prospect and bring great hope to the fields of biomedicine and others. Nonetheless, it is still no small challenge to realize hydrogel materials that are tough, multifunctional, intelligent, and zero-defect. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Xiaojia Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, 1200, Road Cailun, Pudong District, Shanghai, 201203, China
| | - Jinxi Xiang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, 1200, Road Cailun, Pudong District, Shanghai, 201203, China
| | - Yanlong Hong
- Shanghai Collaborative Innovation Center for Chinese Medicine Health Services, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Lan Shen
- School of Pharmacy, 1200, Road Cailun, Pudong District, Shanghai, 201203, China
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16
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Park N, Kim J. Anisotropic Hydrogels with a Multiscale Hierarchical Structure Exhibiting High Strength and Toughness for Mimicking Tendons. ACS Appl Mater Interfaces 2022; 14:4479-4489. [PMID: 34969247 DOI: 10.1021/acsami.1c18989] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Owing to their anisotropic and hierarchical structure, tendons exhibit an outstanding mechanical performance despite the low polymer concentration and softness of the constituent materials. Here, we propose a tendon-mimicking, strong, and tough hydrogel with a multiscale hierarchical and anisotropic structure. An isotropic, precursor double-network hydrogel is transformed into an anisotropic hydrogel by stretching, solvent exchange, and subsequent fixation via ionic crosslinking. Solvent exchange induces densification of the stretched polymer network, enhancement of linear alignment of polymer chains, and microphase separation, leading to anisotropic toughening of the hydrogel. The resulting anisotropic hydrogels show high strength and toughness, which vary over a wide range (1.2-3.3 MPa of strength and 4.9-8.8 MJ/m3 of toughness, respectively), controlled by the degree of pre-stretching. Furthermore, a hierarchical architecture is constructed by braiding the anisotropic hydrogel strands into a rope, resulting in an improved mechanical performance (4.7 MPa of strength in a four-strand hydrogel rope) compared to separated unbraided strands of a hydrogel (2.3 MPa of strength). The higher hierarchical hydrogel cable, prepared by braiding four hydrogel ropes, can withstand a heavy load even up to 13 kg. These results represent that a hierarchical assembly of anisotropic hydrogels exhibits high mechanical performance and a hierarchically anisotropic structure, which are reminiscent of tendons.
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Affiliation(s)
- Nuri Park
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Jaeyun Kim
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- Institute of Quantum Biophysics (IQB), Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
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17
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Taheri S, Bao G, He Z, Mohammadi S, Ravanbakhsh H, Lessard L, Li J, Mongeau L. Injectable, Pore-Forming, Perfusable Double-Network Hydrogels Resilient to Extreme Biomechanical Stimulations. Adv Sci (Weinh) 2022; 9:e2102627. [PMID: 34811970 PMCID: PMC8805581 DOI: 10.1002/advs.202102627] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 08/26/2021] [Indexed: 06/13/2023]
Abstract
Biological tissues hinge on blood perfusion and mechanical toughness to function. Injectable hydrogels that possess both high permeability and toughness have profound impacts on regenerative medicine but remain a long-standing challenge. To address this issue, injectable, pore-forming double-network hydrogels are fabricated by orchestrating stepwise gelation and phase separation processes. The interconnected pores of the resulting hydrogels enable direct medium perfusion through organ-sized matrices. The hydrogels are amenable to cell encapsulation and delivery while promoting cell proliferation and spreading. They are also pore insensitive, tough, and fatigue resistant. When tested in biomimetic perfusion bioreactors, the hydrogels maintain physical integrity under prolonged, high-frequency biomechanical stimulations (>6000 000 cycles at 120 Hz). The excellent biomechanical performance suggests the great potential of the new injectable hydrogel technology for repairing mechanically dynamic tissues, such as vocal folds, and other applications, such as tissue engineering, biofabrication, organs-on-chips, drug delivery, and disease modeling.
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Affiliation(s)
- Sareh Taheri
- Department of Mechanical EngineeringMcGill UniversityMontrealQCH3A 0C3Canada
| | - Guangyu Bao
- Department of Mechanical EngineeringMcGill UniversityMontrealQCH3A 0C3Canada
| | - Zixin He
- Department of Mechanical EngineeringMcGill UniversityMontrealQCH3A 0C3Canada
| | - Sepideh Mohammadi
- Department of Mechanical EngineeringMcGill UniversityMontrealQCH3A 0C3Canada
| | - Hossein Ravanbakhsh
- Department of Mechanical EngineeringMcGill UniversityMontrealQCH3A 0C3Canada
| | - Larry Lessard
- Department of Mechanical EngineeringMcGill UniversityMontrealQCH3A 0C3Canada
| | - Jianyu Li
- Department of Mechanical EngineeringMcGill UniversityMontrealQCH3A 0C3Canada
- Department of Biomedical EngineeringMcGill UniversityMontrealQCH3A 2B4Canada
| | - Luc Mongeau
- Department of Mechanical EngineeringMcGill UniversityMontrealQCH3A 0C3Canada
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18
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Takeno H, Suto N. Robust and Highly Stretchable Chitosan Nanofiber/Alumina-Coated Silica/Carboxylated Poly (Vinyl Alcohol)/Borax Composite Hydrogels Constructed by Multiple Crosslinking. Gels 2021; 8:6. [PMID: 35049541 PMCID: PMC8774304 DOI: 10.3390/gels8010006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/19/2021] [Accepted: 12/20/2021] [Indexed: 11/22/2022] Open
Abstract
We investigated the mechanical and structural properties of composite hydrogels composed of chitosan nanofiber (ChsNF), positively charged alumina-coated silica (ac-SiO2) nanoparticles, carboxylated poly (vinyl alcohol) (cPVA), and borax. ChsNF/cPVA/borax hydrogels without ac-SiO2 exhibited high Young's modulus but poor elongation, whereas cPVA/ac-SiO2/borax hydrogels without ChsNF had moderate Young's modulus but high elongation. ChsNF/ac-SiO2/cPVA/borax hydrogels using both ChsNF and ac-SiO2 as reinforcement agents exhibited high extensibility (930%) and high Young's modulus beyond 1 MPa at a high ac-SiO2 concentration. The network was formed by multiple crosslinking such as the complexation between borate and cPVA, the ionic complexation between ac-SiO2 and cPVA, and the hydrogen bond between ChsNF and cPVA. Structural analysis by synchrotron small-angle X-ray scattering revealed that the nanostructural inhomogeneity in ChsNF/ac-SiO2/cPVA/borax hydrogel was suppressed compared to those of the ChsNF/cPVA/borax and cPVA/ac-SiO2/borax hydrogels.
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Affiliation(s)
- Hiroyuki Takeno
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan;
- Center for Food Science and Wellness, Gunma University, 4-2 Aramaki, Maebashi 371-8510, Japan
| | - Nagisa Suto
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan;
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19
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Imani KBC, Jo A, Choi GM, Kim B, Chung JW, Lee HS, Yoon J. High-Resolution 3D Printing of Mechanically Tough Hydrogels Prepared by Thermo-Responsive Poloxamer Ink Platform. Macromol Rapid Commun 2021; 43:e2100579. [PMID: 34708464 DOI: 10.1002/marc.202100579] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/27/2021] [Indexed: 12/12/2022]
Abstract
High-resolution 3D-printable hydrogels with high mechanical strength and biocompatibility are in great demand because of their potential applications in numerous fields. In this study, a material system comprising Pluronic F-127 dimethacrylate (FDMA) is developed to function as a direct ink writing (DIW) hydrogel for 3D printing. FDMA is a triblock copolymer that transforms into micelles at elevated temperatures. The transformation increases the viscosity of FDMA and preserves its structure during DIW 3D printing, whereupon the printed structure is solidified through photopolymerization. Because of this viscosity shift, various functionalities can be incorporated through the addition of other materials in the solution state. Acrylic acid is incorporated into the pregel solution to enhance the mechanical strength, because the carboxylate group of poly(acrylic acid) ionically crosslinks with Fe3+ , increasing the toughness of the DIW hydrogel 37 times to 2.46 MJ m-3 . Tough conductive hydrogels are also 3D printed by homogenizing poly(3,4-ethylenedioxythiophene) polystyrene sulfonate into the pregel solution. Furthermore, the FDMA platform developed herein uses DIW, which facilitates multicartridges 3D printing, and because all the materials included are biocompatible, the platform may be used to fabricate complex structures for biological applications.
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Affiliation(s)
- Kusuma Betha Cahaya Imani
- Graduate Department of Chemical Materials, Institute for Plastic Information and Energy Materials, Sustainable Utilization of Photovoltaic Energy Research center, Pusan National University, Busan, 46241, Republic of Korea
| | - Ara Jo
- Department of Biomedical Science, Dong-A University, 37 Nakdong-Daero 550 beon-gil, Saha-gu, Busan, 49315, Republic of Korea
| | - Gyeong Min Choi
- Department of Chemical Engineering, Dong-A University, 37 Nakdong-Daero 550 beon-gil, Saha-gu, Busan, 49315, Republic of Korea
| | - Beogyeong Kim
- Graduate Department of Chemical Materials, Institute for Plastic Information and Energy Materials, Sustainable Utilization of Photovoltaic Energy Research center, Pusan National University, Busan, 46241, Republic of Korea
| | - Jin-Woong Chung
- Department of Biomedical Science, Dong-A University, 37 Nakdong-Daero 550 beon-gil, Saha-gu, Busan, 49315, Republic of Korea
| | - Heon Sang Lee
- Department of Chemical Engineering, Dong-A University, 37 Nakdong-Daero 550 beon-gil, Saha-gu, Busan, 49315, Republic of Korea
| | - Jinhwan Yoon
- Graduate Department of Chemical Materials, Institute for Plastic Information and Energy Materials, Sustainable Utilization of Photovoltaic Energy Research center, Pusan National University, Busan, 46241, Republic of Korea
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20
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Xu X, Chen R, Li Y, Yu D, Chen J, Wyman I, Xiao C, Peng S, Chen Y, Hu X, Wu X. A Surface-Confined Gradient Conductive Network Strategy for Transparent Strain Sensors toward Full-Range Monitoring. ACS Appl Mater Interfaces 2021; 13:43806-43819. [PMID: 34478269 DOI: 10.1021/acsami.1c14875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The development of transparent and flexible sensors suitable for the full-range monitoring of human activities is highly desirable, yet presents a daunting challenge due to the need for a combination of properties such as high stretchability, high sensitivity, and good linearity. Gradient structures are commonly found in many biological systems and exhibit excellent mechanical properties. Here, we report a novel surface-confined gradient conductive network (SGN) strategy to construct conductive polymer hydrogel-based stain sensors (CHSS). This CHSS showed an ultrahigh stretchability of 4000% strain, transparency above 90% at a wavelength of 600 nm, as well as skin-like Young's modulus of 40 kPa. Impressively, the sensitivity was improved to 3.0 and outstanding linear sensing performance was achieved simultaneously in the ultrawide range of 0% to 4000% strain with a high R-square value of 0.994. With the help of SGN strategy, this CHSS was able to monitor both large-scale and small-scale human motions and activities. This SGN strategy can open a new avenue for the development of novel flexible strain sensors with excellent mechanical, transparent, and sensing performance for full-range monitoring of human activities.
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Affiliation(s)
- Xiubin Xu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Rui Chen
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Yunlong Li
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Danfeng Yu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Junmin Chen
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Ian Wyman
- Department of Chemistry, Queen's University, Kingston K7L 3N6, Canada
| | - Chuanghong Xiao
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Siyu Peng
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Yanting Chen
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Xiaofeng Hu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Xu Wu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
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21
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Zhu CN, Bai T, Wang H, Ling J, Huang F, Hong W, Zheng Q, Wu ZL. Dual-Encryption in a Shape-Memory Hydrogel with Tunable Fluorescence and Reconfigurable Architecture. Adv Mater 2021; 33:e2102023. [PMID: 34081366 DOI: 10.1002/adma.202102023] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 04/01/2021] [Indexed: 05/07/2023]
Abstract
Materials capable of shape-morphing and/or fluorescence imaging have practical significances in the fields of anti-counterfeiting, information display, and information protection. However, it's challenging to realize these functions in hydrogels due to the poor mechanical properties and lack of tunable fluorescence. A tough hydrogel with good shape-memory ability and phototunable fluorescence is reported here, which affords reprogrammable shape designing and information encoding for dual-encryption. This hydrogel is prepared by incorporating donor-acceptor chromophore units into a poly(1-vinylimidazole-co-methacrylic acid) network, in which the dense intra- and interchain hydrogen bonds lead to desirable features including high stiffness, high toughness, and temperature-mediated shape-memory property. Additionally, the hydrogel shows photomediated tunable fluorescence through a unimer-to-dimer transformation of the chromophores. By combining photolithography and origami/kirigami designs, hydrogel sheets encoded with fluorescent patterns can deform into specific 3D configurations. The geometrically encrypted fluorescent information in the architected hydrogels is readable only after sequential shape recovery and UV light irradiation. As demonstrated by proof-of-concept experiments, both the fluorescent pattern and the 3D configuration are reprogrammable, facilitating repeated information protection and display. The design of tough hydrogels with rewritable fluorescent patterns and reconfigurable shapes should guide the future development of smart materials with improved security and wider applications in aqueous environments.
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Affiliation(s)
- Chao Nan Zhu
- Key Laboratory of Macromolecular Synthesis and Functionalization of Ministry of Education Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Tianwen Bai
- Key Laboratory of Macromolecular Synthesis and Functionalization of Ministry of Education Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Hu Wang
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Jun Ling
- Key Laboratory of Macromolecular Synthesis and Functionalization of Ministry of Education Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Feihe Huang
- State Key Laboratory of Chemical Engineering, Center for Chemistry of High-Performance & Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Wei Hong
- Department of Mechanics and Aerospace Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Qiang Zheng
- Key Laboratory of Macromolecular Synthesis and Functionalization of Ministry of Education Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Zi Liang Wu
- Key Laboratory of Macromolecular Synthesis and Functionalization of Ministry of Education Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
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22
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Hua M, Wu S, Jin Y, Zhao Y, Yao B, He X. Tough-Hydrogel Reinforced Low-Tortuosity Conductive Networks for Stretchable and High-Performance Supercapacitors. Adv Mater 2021; 33:e2100983. [PMID: 34060153 DOI: 10.1002/adma.202100983] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/31/2021] [Indexed: 05/26/2023]
Abstract
All-solid-state supercapacitors are seeing emerging applications in flexible and stretchable electronics. Supercapacitors with high capacitance, high power density, simple form factor, and good mechanical robustness are highly desired, which demands electrode materials with high surface area, high mass loading, good conductivity, larger thickness, low tortuosity, and high toughness. However, it has been challenging to simultaneously realize them in a single material. By compositing a superficial layer of tough hydrogel on conductive and low tortuous foams, a thick capacitor electrode with large capacitance (5.25 F cm-2 ), high power density (41.28 mW cm-2 ), and good mechanical robustness (ε = 140%, Γ = 1000 J m-2 ) is achieved. The tough hydrogel serves as both a load-bearing layer to maintain structural integrity during deformation and a permeable binder to allow interaction between the conductive electrode and electrolyte. It is shown that the tough hydrogel reinforcement is beneficial for both electrical and mechanical stability. With a simple design and facile fabrication, this strategy is generalizable for various conductive materials.
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Affiliation(s)
- Mutian Hua
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Shuwang Wu
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Yin Jin
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Yusen Zhao
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Bowen Yao
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Ximin He
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
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23
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Bettahar F, Bekkar F, Pérez-Álvarez L, Ferahi MI, Meghabar R, Vilas-Vilela JL, Ruiz-Rubio L. Tough Hydrogels Based on Maleic Anhydride, Bulk Properties Study and Microfiber Formation by Electrospinning. Polymers (Basel) 2021; 13:polym13060972. [PMID: 33810000 PMCID: PMC8004733 DOI: 10.3390/polym13060972] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 03/17/2021] [Accepted: 03/18/2021] [Indexed: 12/31/2022] Open
Abstract
Hydrogels present a great number of advantages, such as their swelling capacity or their capability to mimic tissues, which make them very interesting biomaterials. However, one of their main disadvantages is their lack of good mechanical properties, which could limit some of their applications. Several strategies have been carried out to develop hydrogels with enhanced mechanical properties, but many of the suggested synthetic pathways to improve this property are expensive and time consuming. In this work, we studied an easy synthetic path to produce tough hydrogels based on different maleic anhydride copolymers crosslinked with polyethylenglycol. The effect of the comonomers in the mechanical properties has been studied, their excellent mechanical properties, good swelling behavior and thermal stability being remarkable. In addition, in order to evaluate their possible applications as scaffolds or in wound healing applications, microsized fibers have been fabricated by electrospinning.
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Affiliation(s)
- Faiza Bettahar
- Laboratoire de Chimie des Polymères, Université Oran1 Ahmed Ben Bella, El-Mnao uer, BP 1524, Oran 31000, Algeria; (F.B.); (F.B.); (M.I.F.); (R.M.); (J.L.V.-V.)
| | - Fadila Bekkar
- Laboratoire de Chimie des Polymères, Université Oran1 Ahmed Ben Bella, El-Mnao uer, BP 1524, Oran 31000, Algeria; (F.B.); (F.B.); (M.I.F.); (R.M.); (J.L.V.-V.)
| | - Leyre Pérez-Álvarez
- Macromolecular Chemistry Group (LQM), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain;
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| | - Mohammed Issam Ferahi
- Laboratoire de Chimie des Polymères, Université Oran1 Ahmed Ben Bella, El-Mnao uer, BP 1524, Oran 31000, Algeria; (F.B.); (F.B.); (M.I.F.); (R.M.); (J.L.V.-V.)
| | - Rachid Meghabar
- Laboratoire de Chimie des Polymères, Université Oran1 Ahmed Ben Bella, El-Mnao uer, BP 1524, Oran 31000, Algeria; (F.B.); (F.B.); (M.I.F.); (R.M.); (J.L.V.-V.)
| | - José Luis Vilas-Vilela
- Laboratoire de Chimie des Polymères, Université Oran1 Ahmed Ben Bella, El-Mnao uer, BP 1524, Oran 31000, Algeria; (F.B.); (F.B.); (M.I.F.); (R.M.); (J.L.V.-V.)
- Macromolecular Chemistry Group (LQM), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain;
| | - Leire Ruiz-Rubio
- Laboratoire de Chimie des Polymères, Université Oran1 Ahmed Ben Bella, El-Mnao uer, BP 1524, Oran 31000, Algeria; (F.B.); (F.B.); (M.I.F.); (R.M.); (J.L.V.-V.)
- Macromolecular Chemistry Group (LQM), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain;
- Correspondence: ; Tel.: +34-94-6017-972
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24
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Wu S, Hua M, Alsaid Y, Du Y, Ma Y, Zhao Y, Lo CY, Wang C, Wu D, Yao B, Strzalka J, Zhou H, Zhu X, He X. Poly(vinyl alcohol) Hydrogels with Broad-Range Tunable Mechanical Properties via the Hofmeister Effect. Adv Mater 2021; 33:e2007829. [PMID: 33554414 DOI: 10.1002/adma.202007829] [Citation(s) in RCA: 145] [Impact Index Per Article: 48.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/28/2020] [Indexed: 05/26/2023]
Abstract
Hydrogels, exhibiting wide applications in soft robotics, tissue engineering, implantable electronics, etc., often require sophisticately tailoring of the hydrogel mechanical properties to meet specific demands. For examples, soft robotics necessitates tough hydrogels; stem cell culturing demands various tissue-matching modulus; and neuron probes desire dynamically tunable modulus. Herein, a strategy to broadly alter the mechanical properties of hydrogels reversibly via tuning the aggregation states of the polymer chains by ions based on the Hofmeister effect is reported. An ultratough poly(vinyl alcohol) (PVA) hydrogel as an exemplary material (toughness 150 ± 20 MJ m-3 ), which surpasses synthetic polymers like poly(dimethylsiloxane), synthetic rubber, and natural spider silk is fabricated. With various ions, the hydrogel's various mechanical properties are continuously and reversibly in situ modulated over a large window: tensile strength from 50 ± 9 kPa to 15 ± 1 MPa, toughness from 0.0167 ± 0.003 to 150 ± 20 MJ m-3 , elongation from 300 ± 100% to 2100 ± 300%, and modulus from 24 ± 2 to 2500 ± 140 kPa. Importantly, the ions serve as gelation triggers and property modulators only, not necessarily required to remain in the gel, maintaining the high biocompatibility of PVA without excess ions. This strategy, enabling high mechanical performance and broad dynamic tunability, presents a universal platform for broad applications from biomedicine to wearable electronics.
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Affiliation(s)
- Shuwang Wu
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Mutian Hua
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Yousif Alsaid
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Yingjie Du
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Yanfei Ma
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Yusen Zhao
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Chiao-Yueh Lo
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Canran Wang
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Dong Wu
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Bowen Yao
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Joseph Strzalka
- X-Ray Science Division, Argonne National Laboratory, Argonne, IL, 60439, USA
| | - Hua Zhou
- X-Ray Science Division, Argonne National Laboratory, Argonne, IL, 60439, USA
| | - Xinyuan Zhu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Ximin He
- Department of Materials Science and Engineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
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25
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Nonoyama T, Wang L, Tsuda M, Suzuki Y, Kiyama R, Yasuda K, Tanaka S, Nagata K, Fujita R, Sakamoto N, Kawasaki N, Yurimoto H, Gong JP. Isotope Microscopic Observation of Osteogenesis Process Forming Robust Bonding of Double Network Hydrogel to Bone. Adv Healthc Mater 2021; 10:e2001731. [PMID: 33191665 DOI: 10.1002/adhm.202001731] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/02/2020] [Indexed: 01/15/2023]
Abstract
Tough double network (DN) hydrogels are promising substitutes of soft supporting tissues such as cartilage and ligaments. For such applications, it is indispensable to robustly fix the hydrogels to bones with medically feasible methods. Recently, robustly bonding the DN hydrogels to defected bones of rabbits in vivo has been proved successful. The low crystalline hydroxyapatite (HAp) of calcium-phosphate-hydroxide salt coated on the surface layer of the DN hydrogels induced spontaneous osteogenesis penetrating into the semi-permeable hydrogels to form a gel/bone composite layer. In this work, the 44 Ca isotope-doped HAp/DN hydrogel is implanted in a defect of rabbit femoral bone and the dynamic osteogenesis process at the gel/bone interface is analyzed by tracing the calcium isotope ratio using isotope microscopy. The synthetic HAp hybridized on the surface layer of DN gel dissolves rapidly in the first two weeks by inflammation, and then the immature bone with a gradient structure starts to form in the gel region, reutilizing the dissolved Ca ions. These results reveal, for the first time, that synthetic HAp is reutilized for osteogenesis. These facts help to understand the lifetime of bone absorbable materials and to elucidate the mechanism of spontaneous, non-toxic, but strong fixation of hydrogels to bones.
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Affiliation(s)
- Takayuki Nonoyama
- Faculty of Advanced Life Science Hokkaido University Kita‐21 Nishi‐11, Kita‐ku Sapporo 001‐0021 Japan
- Global Station for Soft Matter Global Institution for Collaborative Research and Education (GSS GI‐CoRE) Hokkaido University Kita‐21 Nishi‐11, Kita‐ku Sapporo 001‐0021 Japan
| | - Lei Wang
- Global Station for Soft Matter Global Institution for Collaborative Research and Education (GSS GI‐CoRE) Hokkaido University Kita‐21 Nishi‐11, Kita‐ku Sapporo 001‐0021 Japan
- Department of Cancer Pathology Faculty of Medicine Hokkaido University Kita‐15, Nishi‐7, Kita‐ku Sapporo 060‐8638 Japan
| | - Masumi Tsuda
- Global Station for Soft Matter Global Institution for Collaborative Research and Education (GSS GI‐CoRE) Hokkaido University Kita‐21 Nishi‐11, Kita‐ku Sapporo 001‐0021 Japan
- Department of Cancer Pathology Faculty of Medicine Hokkaido University Kita‐15, Nishi‐7, Kita‐ku Sapporo 060‐8638 Japan
- Institute for Chemical Reaction Design and Discovery (WPI‐ICReDD) Hokkaido University Kita‐21 Nishi‐11, Kita‐ku Sapporo 001‐0021 Japan
| | - Yuki Suzuki
- Graduate School of Life Science Hokkaido University Kita‐21 Nishi‐11, Kita‐ku Sapporo 001‐0021 Japan
| | - Ryuji Kiyama
- Graduate School of Life Science Hokkaido University Kita‐21 Nishi‐11, Kita‐ku Sapporo 001‐0021 Japan
| | - Kazunori Yasuda
- Faculty of Advanced Life Science Hokkaido University Kita‐21 Nishi‐11, Kita‐ku Sapporo 001‐0021 Japan
- Global Station for Soft Matter Global Institution for Collaborative Research and Education (GSS GI‐CoRE) Hokkaido University Kita‐21 Nishi‐11, Kita‐ku Sapporo 001‐0021 Japan
| | - Shinya Tanaka
- Global Station for Soft Matter Global Institution for Collaborative Research and Education (GSS GI‐CoRE) Hokkaido University Kita‐21 Nishi‐11, Kita‐ku Sapporo 001‐0021 Japan
- Department of Cancer Pathology Faculty of Medicine Hokkaido University Kita‐15, Nishi‐7, Kita‐ku Sapporo 060‐8638 Japan
- Institute for Chemical Reaction Design and Discovery (WPI‐ICReDD) Hokkaido University Kita‐21 Nishi‐11, Kita‐ku Sapporo 001‐0021 Japan
| | - Kousuke Nagata
- Department of Natural History Sciences Hokkaido University Kita‐21 Nishi‐11, Kita‐ku Sapporo 001‐0021 Japan
| | - Ryosuke Fujita
- Isotope Imaging Laboratory Creative Research Institution Hokkaido University Kita‐21 Nishi‐11, Kita‐ku Sapporo 001‐0021 Japan
- Laboratory of Sanitary Entomology Faculty of Agriculture Kyushu University Motooka 744, Nishi‐ku Fukuoka 819‐0395 Japan
| | - Naoya Sakamoto
- Isotope Imaging Laboratory Creative Research Institution Hokkaido University Kita‐21 Nishi‐11, Kita‐ku Sapporo 001‐0021 Japan
| | - Noriyuki Kawasaki
- Department of Natural History Sciences Hokkaido University Kita‐21 Nishi‐11, Kita‐ku Sapporo 001‐0021 Japan
| | - Hisayoshi Yurimoto
- Department of Natural History Sciences Hokkaido University Kita‐21 Nishi‐11, Kita‐ku Sapporo 001‐0021 Japan
| | - Jian Ping Gong
- Faculty of Advanced Life Science Hokkaido University Kita‐21 Nishi‐11, Kita‐ku Sapporo 001‐0021 Japan
- Global Station for Soft Matter Global Institution for Collaborative Research and Education (GSS GI‐CoRE) Hokkaido University Kita‐21 Nishi‐11, Kita‐ku Sapporo 001‐0021 Japan
- Institute for Chemical Reaction Design and Discovery (WPI‐ICReDD) Hokkaido University Kita‐21 Nishi‐11, Kita‐ku Sapporo 001‐0021 Japan
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26
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Yu HC, Zheng SY, Fang L, Ying Z, Du M, Wang J, Ren KF, Wu ZL, Zheng Q. Reversibly Transforming a Highly Swollen Polyelectrolyte Hydrogel to an Extremely Tough One and its Application as a Tubular Grasper. Adv Mater 2020; 32:e2005171. [PMID: 33150633 DOI: 10.1002/adma.202005171] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/21/2020] [Indexed: 06/11/2023]
Abstract
Poly(2-acrylamido-2-methyl-1-propanesulfonic acid) and its copolymer hydrogels are typical polyelectrolyte gels with extremely high swelling capacity that are widely used in industry. It's common to consider these hydrogels as weak materials that are difficult to toughen. Reported here is a facile strategy to transform swollen and weak poly(acrylamide-co-2-acrylamido-2-methyl-1-propanesulfonic acid) [P(AAm-co-AMPS)] hydrogels to tough ones by forming strong sulfonate-Zr4+ metal-coordination complexes. The resultant hydrogels with moderate water content possess high stiffness, strength, and fracture energy, which can be tuned over 3-4 orders of magnitude by controlling the composition and metal-to-ligand ratio. Owing to the dynamic nature of the coordination bonds, these hydrogels show rate- and temperature-dependent mechanical performances, as well as good self-recovery properties. This strategy is universal, as manifested by the drastically improved mechanical properties of hydrogels of various natural and synthetic sulfonate-containing polymers. The toughened hydrogels can be converted to the original swollen ones by breaking up the metal-coordination complexes in alkaline solutions. The reversible brittle-tough transition and concomitant dramatic volume change of polyelectrolyte hydrogels afford diverse applications, as demonstrated by the design of a tubular grasper with holding force a thousand times its own weight for objects with different geometries. It is envisioned that these hydrogels enable versatile applications in the biomedical and engineering fields.
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Affiliation(s)
- Hai Chao Yu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Si Yu Zheng
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Lingtao Fang
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Zhimin Ying
- Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Miao Du
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Jing Wang
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Ke-Feng Ren
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Zi Liang Wu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Qiang Zheng
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
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27
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Fang K, Wang R, Zhang H, Zhou L, Xu T, Xiao Y, Zhou Y, Gao G, Chen J, Liu D, Ai F, Fu J. Mechano-Responsive, Tough, and Antibacterial Zwitterionic Hydrogels with Controllable Drug Release for Wound Healing Applications. ACS Appl Mater Interfaces 2020; 12:52307-52318. [PMID: 33183010 DOI: 10.1021/acsami.0c13009] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Acute wounds subject to frequent deformations are difficult to be treated because the healing process was easily interfered by external mechanical forces. Traditional wound dressings have limited efficacy because of their poor mechanical properties and skin adhesiveness and difficulty in the delivery of therapeutic drugs effectively. As such, tough and skin-adhesive wound dressings with sustainable and stimuli-responsive drug release properties for treatment of those wounds are highly desirable. For this purpose, we have developed a mechano-responsive poly(sulfobetaine methacrylate) hydrogel which aims to control the delivery of antibiotic drug upon application of mechanical forces. Diacrylated Pluronic F127 micelles were used as a macro-cross-linker of the hydrogel and loaded with hydrophobic antimicrobial drugs. The micelle-cross-linked hydrogel has excellent mechanical properties, with the ultimate tensile strength and tensile strain of up to 112 kPa and 1420%, respectively, and compressive stress of up to 1.41 MPa. Adhesiveness of the hydrogel to the skin tissue was ∼6 kPa, and it did not decrease significantly after repetitive adhesion cycles. Protein adsorption on the hydrogel was significantly inhibited compared to that on commercial wound dressings. Because of the mechano-responsive deformation of micelles, the release of drug from the hydrogel could be precisely controlled by the extent and cycles of mechanical loading and unloading, endowing the hydrogel with superior antibacterial property against both Gram-positive and Gram-negative bacteria. In addition, drug penetration into the skin tissue was enhanced by mechanical stress applied to the hydrogel. The micelle-cross-linked zwitterionic hydrogel also showed good cell biocompatibility, negligible skin irritation, and healing capacity to acute skin wounds in mice. Such a tough mechano-responsive hydrogel holds great promise as wound dressings for acute wounds subjected to frequent movements.
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Affiliation(s)
- Kun Fang
- School of Mechatronics Engineering, Nanchang University, Nanchang 330031, China
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Cixi, Ningbo 315300, China
| | - Rong Wang
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Cixi, Ningbo 315300, China
| | - Hua Zhang
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Cixi, Ningbo 315300, China
| | - Linjie Zhou
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Cixi, Ningbo 315300, China
| | - Ting Xu
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Cixi, Ningbo 315300, China
| | - Ying Xiao
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Cixi, Ningbo 315300, China
| | - Yang Zhou
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Cixi, Ningbo 315300, China
| | - Guorong Gao
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Cixi, Ningbo 315300, China
| | - Jing Chen
- Cixi Institute of Biomedical Engineering, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Cixi, Ningbo 315300, China
| | - Donglei Liu
- School of Mechatronics Engineering, Nanchang University, Nanchang 330031, China
| | - Fanrong Ai
- School of Mechatronics Engineering, Nanchang University, Nanchang 330031, China
| | - Jun Fu
- School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China
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28
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Dai CF, Zhang XN, Du C, Frank A, Schmidt HW, Zheng Q, Wu ZL. Photoregulated Gradient Structure and Programmable Mechanical Performances of Tough Hydrogels with a Hydrogen-Bond Network. ACS Appl Mater Interfaces 2020; 12:53376-53384. [PMID: 33170639 DOI: 10.1021/acsami.0c17198] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Gradient materials exist widely in natural living organisms, affording fascinating biological and mechanical properties. However, the synthetic gradient hydrogels are usually mechanically weak or only have relatively simple gradient structures. Here, we report on tough nanocomposite hydrogels with designable gradient network structure and mechanical properties by a facile post-photoregulation strategy. Poly(1-vinylimidazole-co-methacrylic acid) hydrogels containing gold nanorods (AuNRs) are in a glassy state and show typical yielding and forced elastic deformation at room temperature. The gel slightly contracts its volume when the temperature is above the glass-transition temperature that results in a collapse of the chain segments and formation of denser intra- and interchain hydrogen bonds. Consequently, the mechanical properties of the gels are enhanced, when the temperature returns to room temperature. The mechanical performances of hydrogels can also be locally tuned by near-infrared light irradiation due to the photothermal effect of AuNRs. Hydrogels with arbitrary two-dimensional gradients can be facilely developed by site-specific photoirradiation. The treated and untreated regions with different stiffness and yielding stress possess construct behaviors in stretching or twisting deformations. A locally reinforced hydrogel with the kirigami structure becomes notch-insensitive and exhibits improved strength and stretchability because the treated regions ahead the cuts have better resistance to crack advancement. These tough hydrogels with programmable gradient structure and mechanics should find applications as structural elements, biological devices, etc.
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Affiliation(s)
- Chen Fei Dai
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xin Ning Zhang
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Cong Du
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Andreas Frank
- Department of Macromolecular Chemistry I and Bavarian Polymer Institute, University of Bayreuth, Bayreuth 95440, Germany
| | - Hans-Werner Schmidt
- Department of Macromolecular Chemistry I and Bavarian Polymer Institute, University of Bayreuth, Bayreuth 95440, Germany
| | - Qiang Zheng
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zi Liang Wu
- Ministry of Education Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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29
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Tavafoghi M, Sheikhi A, Tutar R, Jahangiry J, Baidya A, Haghniaz R, Khademhosseini A. Engineering Tough, Injectable, Naturally Derived, Bioadhesive Composite Hydrogels. Adv Healthc Mater 2020; 9:e1901722. [PMID: 32329254 DOI: 10.1002/adhm.201901722] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 02/08/2020] [Accepted: 02/10/2020] [Indexed: 01/13/2023]
Abstract
Engineering mechanically robust bioadhesive hydrogels that can withstand large strains may open new opportunities for the sutureless sealing of highly stretchable tissues. While typical chemical modifications of hydrogels, such as increasing the functional group density of crosslinkable moieties and blending them with other polymers or nanomaterials have resulted in improved mechanical stiffness, the modified hydrogels have often exhibited increased brittleness resulting in deteriorated sealing capabilities under large strains. Furthermore, highly elastic hydrogels, such as tropoelastin derivatives are highly expensive. Here, gelatin methacryloyl (GelMA) is hybridized with methacrylate-modified alginate (AlgMA) to enable ion-induced reversible crosslinking that can dissipate energy under strain. The hybrid hydrogels provide a photocrosslinkable, injectable, and bioadhesive platform with an excellent toughness that can be tailored using divalent cations, such as calcium. This class of hybrid biopolymers with more than 600% improved toughness compared to GelMA may set the stage for durable, mechanically resilient, and cost-effective tissue sealants. This strategy to increase the toughness of hydrogels may be extended to other crosslinkable polymers with similarly reactive moieties.
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Affiliation(s)
- Maryam Tavafoghi
- Department of BioengineeringUniversity of California Los Angeles, 410 Westwood Plaza Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C‐MIT)University of California Los Angeles, 570 Westwood Plaza Los Angeles CA 90095 USA
- California NanoSystems Institute (CNSI)University of California Los Angeles, 570 Westwood Plaza Los Angeles CA 90095 USA
| | - Amir Sheikhi
- Department of BioengineeringUniversity of California Los Angeles, 410 Westwood Plaza Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C‐MIT)University of California Los Angeles, 570 Westwood Plaza Los Angeles CA 90095 USA
- California NanoSystems Institute (CNSI)University of California Los Angeles, 570 Westwood Plaza Los Angeles CA 90095 USA
- Department of Chemical EngineeringThe Pennsylvania State University University Park PA 16802 USA
- Department of Biomedical EngineeringThe Pennsylvania State University University Park PA 16802 USA
| | - Rumeysa Tutar
- Department of BioengineeringUniversity of California Los Angeles, 410 Westwood Plaza Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C‐MIT)University of California Los Angeles, 570 Westwood Plaza Los Angeles CA 90095 USA
- California NanoSystems Institute (CNSI)University of California Los Angeles, 570 Westwood Plaza Los Angeles CA 90095 USA
- Department of Chemistry, Faculty of EngineeringIstanbul University‐Cerrahpasa Avcılar Istanbul 34320 Turkey
| | - Jamileh Jahangiry
- Department of BioengineeringUniversity of California Los Angeles, 410 Westwood Plaza Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C‐MIT)University of California Los Angeles, 570 Westwood Plaza Los Angeles CA 90095 USA
- California NanoSystems Institute (CNSI)University of California Los Angeles, 570 Westwood Plaza Los Angeles CA 90095 USA
| | - Avijit Baidya
- Department of BioengineeringUniversity of California Los Angeles, 410 Westwood Plaza Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C‐MIT)University of California Los Angeles, 570 Westwood Plaza Los Angeles CA 90095 USA
- California NanoSystems Institute (CNSI)University of California Los Angeles, 570 Westwood Plaza Los Angeles CA 90095 USA
| | - Reihaneh Haghniaz
- Department of BioengineeringUniversity of California Los Angeles, 410 Westwood Plaza Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C‐MIT)University of California Los Angeles, 570 Westwood Plaza Los Angeles CA 90095 USA
- California NanoSystems Institute (CNSI)University of California Los Angeles, 570 Westwood Plaza Los Angeles CA 90095 USA
| | - Ali Khademhosseini
- Department of BioengineeringUniversity of California Los Angeles, 410 Westwood Plaza Los Angeles CA 90095 USA
- Center for Minimally Invasive Therapeutics (C‐MIT)University of California Los Angeles, 570 Westwood Plaza Los Angeles CA 90095 USA
- California NanoSystems Institute (CNSI)University of California Los Angeles, 570 Westwood Plaza Los Angeles CA 90095 USA
- Department of Chemical and Biomolecular EngineeringUniversity of California Los Angeles, 5531 Boelter Hall Los Angeles CA 90095 USA
- Department of Radiological Sciences, David Geffen School of MedicineUniversity of California Los Angeles, 10833 Le Conte Ave Los Angeles CA 90095 USA
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30
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Abstract
Hydrogels have long been explored as attractive materials for biomedical applications given their outstanding biocompatibility, high water content, and versatile fabrication platforms into materials with different physiochemical properties and geometries. Nonetheless, conventional hydrogels suffer from weak mechanical properties, restricting their use in persistent load-bearing applications often required of materials used in medical settings. Thus, the fabrication of mechanically robust hydrogels that can prolong the lifetime of clinically suitable materials under uncompromising in vivo conditions is of great interest. This review focuses on design considerations and strategies to construct such tough hydrogels. Several promising advances in the proposed use of specialty tough hydrogels for soft actuators, drug delivery vehicles, adhesives, coatings, and in tissue engineering settings are highlighted. While challenges remain before these specialty tough hydrogels will be deemed translationally acceptable for clinical applications, promising preliminary results undoubtedly spur great hope in the potential impact this embryonic research field can have on the biomedical community.
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Affiliation(s)
- Stephanie Fuchs
- Department of Biological and Environmental Engineering, Cornell University, Riley Robb Hall 322, Ithaca, NY, 14853, USA
| | - Kaavian Shariati
- Department of Biological and Environmental Engineering, Cornell University, Riley Robb Hall 322, Ithaca, NY, 14853, USA
| | - Minglin Ma
- Department of Biological and Environmental Engineering, Cornell University, Riley Robb Hall 322, Ithaca, NY, 14853, USA
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31
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Gan D, Wang Z, Xie C, Wang X, Xing W, Ge X, Yuan H, Wang K, Tan H, Lu X. Mussel-Inspired Tough Hydrogel with In Situ Nanohydroxyapatite Mineralization for Osteochondral Defect Repair. Adv Healthc Mater 2019; 8:e1901103. [PMID: 31609095 DOI: 10.1002/adhm.201901103] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 09/20/2019] [Indexed: 01/15/2023]
Abstract
Repairing osteochondral defects is a considerable challenge because it involves the breakdown of articular cartilage and underlying bone. Traditional hydrogels with a homogenized single-layer structure cannot fully restore the function of osteochondral cartilage tissue. In this study, a mussel-inspired hydrogel with a bilayer structure is developed to repair osteochondral defects. The hydrogel is synthesized by simultaneously polymerizing two layers using a one-pot method. The resulting upper and lower gelatin methacryloyl-polydopamine hydrogel layers are used as cartilage and subchondral bone repair layers, respectively. Polydopamine-induced hydroxyapatite in situ mineralization takes place in the lower layer to mimic the structure of subchondral bone. The bilayer hydrogel exhibits good mechanical properties for the synergistic effect of covalent and noncovalent bonds, as well as nanoreinforcement of mineralized hydroxyapatite. To improve the tissue-inducibility of hydrogels, transforming growth factor β3 is immobilized in the upper layer to induce cartilage regeneration, while bone morphogenetic protein 2 is immobilized in the lower layer to induce bone regeneration. Bone and cartilage repair performance of the hydrogel is examined by implantation into a full-thickness cartilage defect of a rabbit knee joint. The bilayer-structure hydrogel promotes regeneration of osteochondral tissue, thus providing a new option for repair of osteochondral defects.
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Affiliation(s)
- Donglin Gan
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China
| | - Zhixiong Wang
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China
| | - Chaoming Xie
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China
| | - Xiao Wang
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China
| | - Wensi Xing
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China
| | - Xiang Ge
- Key Laboratory of Mechanism Theory and Equipment Design of Ministry of Education, School of Mechanical Engineering, Tianjin University, Tianjin, 300354, China
| | - Huipin Yuan
- College of Physical Science and Technology, Sichuan University, Chengdu, Sichuan, 610064, China
| | - Kefeng Wang
- National Engineering Research Center for Biomaterials, Genome Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan, 610064, China
| | - Hui Tan
- Health Science Center, Department of Neurosurgery, The First Affiliated Hospital of Shenzhen University, No. 3002, Sungang West Road, Futian District, Shenzhen, 518035, China
| | - Xiong Lu
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan, 610031, China
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32
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Tao Z, Fan H, Huang J, Sun T, Kurokawa T, Gong JP. Fabrication of Tough Hydrogel Composites from Photoresponsive Polymers to Show Double-Network Effect. ACS Appl Mater Interfaces 2019; 11:37139-37146. [PMID: 31525861 DOI: 10.1021/acsami.9b13746] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Inspired by the toughening mechanism of double-network (DN) gels, tough hydrogel composites with a sandwich structure were fabricated from photoresponsive polymers. By copolymerization of hydrophilic monomers, 2-ureidoethyl methacrylate (UM), and photoresponsive hydrophobic monomers, (2-nitrobenzyloxycarbonylaminoethyl methacrylate (NBOC)) at high concentrations, physical hydrogels that are soft and highly stretchable are formed due to the hydrophobic associations of NBOC, serving as dynamic crosslinkers. By UV irradiation, the physical crosslinking switches into chemical crosslinking, and the soft physical hydrogels transform into rigid and less stretchable chemical hydrogels. By UV curing the surface layers of the physical hydrogels, we prepared hydrogel composites having a sandwiched structure with two rigid outer layers and a soft inner layer. The molecular-level continuous interfaces and matched swelling ratios between the layers ensure the macroscale hydrogel composites' high strength and toughness with a DN gel effect. The outer layers fracture preferentially at deformation, playing a role like the first network of a DN gel, while the inner layer maintains the integrity, playing a role resembling the second network. The evolution of the fracture morphology of the rigid layers gives useful insight into the internal fracture process of DN gels.
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Affiliation(s)
| | | | | | - Taolin Sun
- South China Advanced Institute for Soft Matter Science and Technology , South China University of Technology , 381st Wushan Road , Tianhe District, Guangzhou 510640 , China
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33
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Liu Y, Yang T, Zhang Y, Qu G, Wei S, Liu Z, Kong T. Ultrastretchable and Wireless Bioelectronics Based on All-Hydrogel Microfluidics. Adv Mater 2019; 31:e1902783. [PMID: 31418928 DOI: 10.1002/adma.201902783] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 06/29/2019] [Indexed: 06/10/2023]
Abstract
Hydrogel bioelectronics that can interface biological tissues and flexible electronics is at the core of the growing field of healthcare monitoring, smart drug systems, and wearable and implantable devices. Here, a simple strategy is demonstrated to prototype all-hydrogel bioelectronics with embedded arbitrary conductive networks using tough hydrogels and liquid metal. Due to their excellent stretchability, the resultant all-hydrogel bioelectronics exhibits stable electrochemical properties at large tensile stretch and various modes of deformation. The potential of fabricated all-hydrogel bioelectronics is demonstrated as wearable strain sensors, cardiac patches, and near-field communication (NFC) devices for monitoring various physiological conditions wirelessly. The presented simple platform paves the way of implantable hydrogel electronics for Internet-of-Things and tissue-machine interfacing applications.
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Affiliation(s)
- Yaming Liu
- Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, Guangdong, 518000, China
| | - Tiyun Yang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, 518000, China
| | - Yuyan Zhang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, 518000, China
| | - Gang Qu
- Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, Guangdong, 518000, China
| | - Shanshan Wei
- Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, Guangdong, 518000, China
| | - Zhou Liu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, 518000, China
| | - Tiantian Kong
- Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen, Guangdong, 518000, China
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34
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Tran VT, Mredha MTI, Pathak SK, Yoon H, Cui J, Jeon I. Conductive Tough Hydrogels with a Staggered Ion-Coordinating Structure for High Self-Recovery Rate. ACS Appl Mater Interfaces 2019; 11:24598-24608. [PMID: 31246394 DOI: 10.1021/acsami.9b06478] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Conductive hydrogels are attracting increasing attention owing to their great potential for applications in flexible devices. For practical use, these high-water-content materials should not only show good conductivity but also be strong, stretchable, tough, and elastic. Herein, we describe a class of novel conductive tough hydrogels based on strong staggered Fe3+-carboxyl coordinating interactions. They are made from copolymers of acrylamide and N-acryloyl glutamic acid, a bidentate-based comonomer. The design of the staggered structure of Fe3+ and bidentate units is expected to enable energy dissipation and also results in a synergetic effect of two binding sites for fast self-recovery. We demonstrate that the equilibrated hydrogels with a water content of 53 wt % exhibit superior mechanical properties (e.g., highest tensile strength, 12.1 MPa; Young's modulus, 36.1 MPa; work of extension, 42.1 MJ m-3; fracture energy, 10,691 J m-2; compressive strength, 65.1 MPa at 98% strain without a macroscopic fracture) compared to the ion-coordinated hydrogels reported to date, including elasticity at small strain, fast self-recoverability at room temperature (∼25 °C), a high dielectric constant (k = 341-1395 at 100 kHz), and good electrical conductivity (0.0018-0.024 S cm-1). Given their extraordinary overall characteristics, we envision their potential applications in flexible electronic devices.
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Affiliation(s)
- Van Tron Tran
- School of Mechanical Engineering , Chonnam National University , 77 Yongbong-ro , Buk-gu, Gwangju 61186 , Republic of Korea
| | - Md Tariful Islam Mredha
- School of Mechanical Engineering , Chonnam National University , 77 Yongbong-ro , Buk-gu, Gwangju 61186 , Republic of Korea
| | - Suraj Kumar Pathak
- School of Mechanical Engineering , Chonnam National University , 77 Yongbong-ro , Buk-gu, Gwangju 61186 , Republic of Korea
| | - Hyungsuk Yoon
- School of Mechanical Engineering , Chonnam National University , 77 Yongbong-ro , Buk-gu, Gwangju 61186 , Republic of Korea
- Korea Research Institute of Standards and Science (KRISS) , 267 Gajeong-ro , Yuseong-gu, Daejeon 34113 , Republic of Korea
| | - Jiaxi Cui
- INM - Leibniz Institute for New Materials , Campus D2 2, Saarbrücken 66123 , Germany
- Institute of Fundamental and Frontier Sciences , University of Electronic Science and Technology of China , Chengdu , Sichuan 610054 , China
| | - Insu Jeon
- School of Mechanical Engineering , Chonnam National University , 77 Yongbong-ro , Buk-gu, Gwangju 61186 , Republic of Korea
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35
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Wang L, Gao G, Zhou Y, Xu T, Chen J, Wang R, Zhang R, Fu J. Tough, Adhesive, Self-Healable, and Transparent Ionically Conductive Zwitterionic Nanocomposite Hydrogels as Skin Strain Sensors. ACS Appl Mater Interfaces 2019; 11:3506-3515. [PMID: 30592203 DOI: 10.1021/acsami.8b20755] [Citation(s) in RCA: 173] [Impact Index Per Article: 34.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
It is desired to create skin strain sensors composed of multifunctional conductive hydrogels with excellent toughness and adhesion properties to sustain cyclic loadings during use and facilitate the electrical signal transmission. Herein, we prepared transparent, compliant, and adhesive zwitterionic nanocomposite hydrogels with excellent mechanical properties. The incorporated zwitterionic polymers can form interchain dipole-dipole associations to offer additional physical cross-linking of the network. The hydrogels show a high fracture elongation up to 2000%, a fracture strength up to 0.27 MPa, and a fracture toughness up to 2.45 MJ/m3. Moreover, the reversible physical interaction imparts the hydrogels with rapid self-healing ability without any stimuli. The hydrogels are adhesive to many surfaces including polyelectrolyte hydrogels, skin, glasses, silicone rubbers, and nitrile rubbers. The presence of abundant zwitterionic groups facilitates ionic conductivity in the hydrogels. The combination of these properties enables the hydrogels to act as strain sensors with high sensitivity (gauge factor = 1.8). The strategy to design the tough, adhesive, self-healable, and conductive hydrogels as skin strain sensors by the zwitterionic nanocomposite hydrogels is promising for practical applications.
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Affiliation(s)
- Liufang Wang
- State Key Laboratory of Chemical Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
- Cixi Institute of Biomedical Engineering & Polymers and Composites Division, Ningbo Institute of Materials Technology & Engineering , Chinese Academy of Sciences , 1219 Zhongguan West Road , Ningbo 315201 , China
| | - Guorong Gao
- Cixi Institute of Biomedical Engineering & Polymers and Composites Division, Ningbo Institute of Materials Technology & Engineering , Chinese Academy of Sciences , 1219 Zhongguan West Road , Ningbo 315201 , China
| | - Yang Zhou
- Cixi Institute of Biomedical Engineering & Polymers and Composites Division, Ningbo Institute of Materials Technology & Engineering , Chinese Academy of Sciences , 1219 Zhongguan West Road , Ningbo 315201 , China
| | - Ting Xu
- Cixi Institute of Biomedical Engineering & Polymers and Composites Division, Ningbo Institute of Materials Technology & Engineering , Chinese Academy of Sciences , 1219 Zhongguan West Road , Ningbo 315201 , China
| | - Jing Chen
- Cixi Institute of Biomedical Engineering & Polymers and Composites Division, Ningbo Institute of Materials Technology & Engineering , Chinese Academy of Sciences , 1219 Zhongguan West Road , Ningbo 315201 , China
| | - Rong Wang
- Cixi Institute of Biomedical Engineering & Polymers and Composites Division, Ningbo Institute of Materials Technology & Engineering , Chinese Academy of Sciences , 1219 Zhongguan West Road , Ningbo 315201 , China
| | - Rui Zhang
- State Key Laboratory of Chemical Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
| | - Jun Fu
- Cixi Institute of Biomedical Engineering & Polymers and Composites Division, Ningbo Institute of Materials Technology & Engineering , Chinese Academy of Sciences , 1219 Zhongguan West Road , Ningbo 315201 , China
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36
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Güney A, Gardiner C, McCormack A, Malda J, Grijpma DW. Thermoplastic PCL- b-PEG- b-PCL and HDI Polyurethanes for Extrusion-Based 3D-Printing of Tough Hydrogels. Bioengineering (Basel) 2018; 5:E99. [PMID: 30441879 PMCID: PMC6316089 DOI: 10.3390/bioengineering5040099] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 10/26/2018] [Accepted: 11/03/2018] [Indexed: 12/30/2022] Open
Abstract
Novel tough hydrogel materials are required for 3D-printing applications. Here, a series of thermoplastic polyurethanes (TPUs) based on poly(ɛ-caprolactone)-b-poly(ethylene glycol)-b-poly(ɛ-caprolactone) (PCL-b-PEG-b-PCL) triblock copolymers and hexamethylene diisocyanate (HDI) were developed with PEG contents varying between 30 and 70 mol%. These showed excellent mechanical properties not only when dry, but also when hydrated: TPUs prepared from PCL-b-PEG-b-PCL with PEG of Mn 6 kg/mol (PCL₇-PEG₆-PCL₇) took up 122 wt.% upon hydration and had an E-modulus of 52 ± 10 MPa, a tensile strength of 17 ± 2 MPa, and a strain at break of 1553 ± 155% in the hydrated state. They had a fracture energy of 17976 ± 3011 N/mm² and a high tearing energy of 72 kJ/m². TPUs prepared using PEG with Mn of 10 kg/mol (PCL₅-PEG10-PCL₅) took up 534% water and were more flexible. When wet, they had an E-modulus of 7 ± 2 MPa, a tensile strength of 4 ± 1 MPa, and a strain at break of 147 ± 41%. These hydrogels had a fracture energy of 513 ± 267 N/mm² and a tearing energy of 16 kJ/m². The latter TPU was first extruded into filaments and then processed into designed porous hydrogel structures by 3D-printing. These hydrogels can be used in 3D printing of tissue engineering scaffolds with high fracture toughness.
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Affiliation(s)
- Aysun Güney
- Department of Biomaterials Science and Technology, Science and Technology Faculty, Technical Medical Centre, University of Twente, 7500AE Enschede, The Netherlands.
| | - Christina Gardiner
- Department of Biomaterials Science and Technology, Science and Technology Faculty, Technical Medical Centre, University of Twente, 7500AE Enschede, The Netherlands.
| | - Andrew McCormack
- Department of Biomaterials Science and Technology, Science and Technology Faculty, Technical Medical Centre, University of Twente, 7500AE Enschede, The Netherlands.
| | - Jos Malda
- Department of Orthopaedics, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands.
- Regenerative Medicine Utrecht, Utrecht University, 3584 CX Utrecht, The Netherlands.
- Faculty of Veterinary Sciences, Utrecht University, 3584 CL Utrecht, The Netherlands.
| | - Dirk W Grijpma
- Department of Biomaterials Science and Technology, Science and Technology Faculty, Technical Medical Centre, University of Twente, 7500AE Enschede, The Netherlands.
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37
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Abstract
Hydrogels are three-dimensional cross-linked polymer networks which can absorb and retain large amount of water. As representative soft materials with tunable chemical, physical and biological properties, hydrogels with different functions have been developed and utilized in a broad range of applications, from tissue engineering to soft robotics. However, conventional hydrogels usually suffer from weak mechanical properties and they are easily deformed or damaged when they are subjected to mechanical forces. The accumulation of the damage may lead to the permanent structural change and the loss of the functional properties of the hydrogels. Therefore, it is important to develop mechanically robust hydrogels with autonomous self-healing property in order to extend their lifespan for various applications. In this mini review, we focus on the discussion about the appropriate molecular design of the hydrogel network for achieving self-healing and excellent mechanical properties, respectively as well as the corresponding self-healing and toughening mechanisms. We conclude with perspectives on the remaining challenges in the field as well as the recommendations for future development.
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Affiliation(s)
| | - Ravin Narain
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada
| | - Hongbo Zeng
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada
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38
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Gilshteyn EP, Lin S, Kondrashov VA, Kopylova DS, Tsapenko AP, Anisimov AS, Hart AJ, Zhao X, Nasibulin AG. A One-Step Method of Hydrogel Modification by Single-Walled Carbon Nanotubes for Highly Stretchable and Transparent Electronics. ACS Appl Mater Interfaces 2018; 10:28069-28075. [PMID: 30052424 DOI: 10.1021/acsami.8b08409] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Electrically conductive hydrogels (ECHs) are attracting much interest in the field of biomaterials science because of their unique properties. However, effective incorporation and dispersion of conductive materials in the matrices of polymeric hydrogels for improved conductivity remains a great challenge. Here, we demonstrate highly transparent, electrically conductive, stretchable tough hydrogels modified by single-walled carbon nanotubes (SWCNTs). Two different approaches for the fabrication of SWCNT/hydrogel structures are examined: a simple SWCNT film transfer onto the as-prepared hydrogel and the film deposition onto the pre-stretched hydrogel. Functionality of our method is confirmed by scanning electron microscopy along with optical and electrical measurements of our structures while subjecting them to different strains. Since the hydrogel-based structures are intrinsically soft, stretchable, wet, and sticky, they conform well to a human skin. We demonstrate applications of our material as skin-like passive electrodes and active finger-mounted joint motion sensors. Our technique shows promise to accelerate the development of biointegrated wearable electronics.
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Affiliation(s)
- Evgenia P Gilshteyn
- Center for Photonics and Quantum Materials, Laboratory of Nanomaterials , Skolkovo Institute of Science and Technology , Nobel St., 3 , Moscow 121205 , Russia
| | - Shaoting Lin
- Department of Mechanical Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Vladislav A Kondrashov
- Center for Photonics and Quantum Materials, Laboratory of Nanomaterials , Skolkovo Institute of Science and Technology , Nobel St., 3 , Moscow 121205 , Russia
| | - Daria S Kopylova
- Center for Photonics and Quantum Materials, Laboratory of Nanomaterials , Skolkovo Institute of Science and Technology , Nobel St., 3 , Moscow 121205 , Russia
| | - Alexey P Tsapenko
- Center for Photonics and Quantum Materials, Laboratory of Nanomaterials , Skolkovo Institute of Science and Technology , Nobel St., 3 , Moscow 121205 , Russia
| | | | - A John Hart
- Department of Mechanical Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Xuanhe Zhao
- Department of Mechanical Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Albert G Nasibulin
- Center for Photonics and Quantum Materials, Laboratory of Nanomaterials , Skolkovo Institute of Science and Technology , Nobel St., 3 , Moscow 121205 , Russia
- Department of Applied Physics , Aalto University , P.O. Box 15100, FI-00076 Aalto, Espoo , Finland
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39
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Morelle XP, Illeperuma WR, Tian K, Bai R, Suo Z, Vlassak JJ. Highly Stretchable and Tough Hydrogels below Water Freezing Temperature. Adv Mater 2018; 30:e1801541. [PMID: 29989671 DOI: 10.1002/adma.201801541] [Citation(s) in RCA: 201] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 06/02/2018] [Indexed: 05/26/2023]
Abstract
Hydrogels consist of hydrophilic polymer networks dispersed in water. Many applications of hydrogels rely on their unique combination of solid-like mechanical behavior and water-like transport properties. If the temperature is lowered below 0 °C, however, hydrogels freeze and become rigid, brittle, and non-conductive. Here, a general class of hydrogels that do not freeze at temperatures far below 0 °C, while retaining high stretchability and fracture toughness, is demonstrated. These hydrogels are synthesized by adding a suitable amount of an ionic compound to the hydrogel. The present study focuses on tough polyacrylamide-alginate double network hydrogels equilibrated with aqueous solutions of calcium chloride. The resulting hydrogels can be cooled to temperatures as low as -57 °C without freezing. In this temperature range, the hydrogels can still be stretched more than four times their initial length and have a fracture toughness of 5000 J m-2 . It is anticipated that this new class of hydrogels will prove useful in developing new applications operating under a broad range of environmental and atmospheric conditions.
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Affiliation(s)
- Xavier P Morelle
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Kavli Institute for Bionano Science and Technology, Cambridge, MA, 02138, USA
- Soft Matter Science and Engineering Laboratory, ESPCI ParisTech, Paris, 75005, France
| | - Widusha R Illeperuma
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
| | - Kevin Tian
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
| | - Ruobing Bai
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Kavli Institute for Bionano Science and Technology, Cambridge, MA, 02138, USA
| | - Zhigang Suo
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Kavli Institute for Bionano Science and Technology, Cambridge, MA, 02138, USA
| | - Joost J Vlassak
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
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40
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Rao P, Sun TL, Chen L, Takahashi R, Shinohara G, Guo H, King DR, Kurokawa T, Gong JP. Tough Hydrogels with Fast, Strong, and Reversible Underwater Adhesion Based on a Multiscale Design. Adv Mater 2018; 30:e1801884. [PMID: 29939425 DOI: 10.1002/adma.201801884] [Citation(s) in RCA: 145] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 04/30/2018] [Indexed: 06/08/2023]
Abstract
Hydrogels have promising applications in diverse areas, especially wet environments including tissue engineering, wound dressing, biomedical devices, and underwater soft robotics. Despite strong demands in such applications and great progress in irreversible bonding of robust hydrogels to diverse synthetic and biological surfaces, tough hydrogels with fast, strong, and reversible underwater adhesion are still not available. Herein, a strategy to develop hydrogels demonstrating such characteristics by combining macroscale surface engineering and nanoscale dynamic bonds is proposed. Based on this strategy, excellent underwater adhesion performance of tough hydrogels with dynamic ionic and hydrogen bonds, on diverse substrates, including hard glasses, soft hydrogels, and biological tissues is obtained. The proposed strategy can be generalized to develop other soft materials with underwater adhesion.
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Affiliation(s)
- Ping Rao
- Graduate School of Life Science, Hokkaido University, Sapporo, 001-0021, Japan
| | - Tao Lin Sun
- Faculty of Advanced Life Science, Hokkaido University, Sapporo, 001-0021, Japan
- Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, 001-0021, Japan
- South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, 510640, China
| | - Liang Chen
- Graduate School of Life Science, Hokkaido University, Sapporo, 001-0021, Japan
| | - Riku Takahashi
- Graduate School of Life Science, Hokkaido University, Sapporo, 001-0021, Japan
| | - Gento Shinohara
- Department of Zoology, National Museum of Nature and Science, Tsukuba, 305-0005, Japan
| | - Hui Guo
- Faculty of Advanced Life Science, Hokkaido University, Sapporo, 001-0021, Japan
| | - Daniel R King
- Faculty of Advanced Life Science, Hokkaido University, Sapporo, 001-0021, Japan
- Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, 001-0021, Japan
| | - Takayuki Kurokawa
- Faculty of Advanced Life Science, Hokkaido University, Sapporo, 001-0021, Japan
- Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, 001-0021, Japan
| | - Jian Ping Gong
- Faculty of Advanced Life Science, Hokkaido University, Sapporo, 001-0021, Japan
- Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Sapporo, 001-0021, Japan
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41
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Liu Y, He W, Zhang Z, Lee BP. Recent Developments in Tough Hydrogels for Biomedical Applications. Gels 2018; 4:E46. [PMID: 30674822 PMCID: PMC6209285 DOI: 10.3390/gels4020046] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 05/14/2018] [Accepted: 05/17/2018] [Indexed: 12/15/2022] Open
Abstract
A hydrogel is a three-dimensional polymer network with high water content and has been attractive for many biomedical applications due to its excellent biocompatibility. However, classic hydrogels are mechanically weak and unsuitable for most physiological load-bearing situations. Thus, the development of tough hydrogels used in the biomedical field becomes critical. This work reviews various strategies to fabricate tough hydrogels with the introduction of non-covalent bonds and the construction of stretchable polymer networks and interpenetrated networks, such as the so-called double-network hydrogel. Additionally, the design of tough hydrogels for tissue adhesive, tissue engineering, and soft actuators is reviewed.
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Affiliation(s)
- Yuan Liu
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, MA 01003, USA.
| | - Weilue He
- FM Wound Care LLC, Hancock, MI 49930, USA.
| | - Zhongtian Zhang
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI 49931, USA.
| | - Bruce P Lee
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI 49931, USA.
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42
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Li J, Weber E, Guth-Gundel S, Schuleit M, Kuttler A, Halleux C, Accart N, Doelemeyer A, Basler A, Tigani B, Wuersch K, Fornaro M, Kneissel M, Stafford A, Freedman BR, Mooney DJ. Tough Composite Hydrogels with High Loading and Local Release of Biological Drugs. Adv Healthc Mater 2018; 7:e1701393. [PMID: 29441702 PMCID: PMC6192424 DOI: 10.1002/adhm.201701393] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 01/09/2018] [Indexed: 11/10/2022]
Abstract
Hydrogels are under active development for controlled drug delivery, but their clinical translation is limited by low drug loading capacity, deficiencies in mechanical toughness and storage stability, and poor control over the drug release that often results in burst release and short release duration. This work reports a design of composite clay hydrogels, which simultaneously achieve a spectrum of mechanical, storage, and drug loading/releasing properties to address the critical needs from translational perspectives. The clay nanoparticles provide large surface areas to adsorb biological drugs, and assemble into microparticles that are physically trapped within and toughen hydrogel networks. The composite hydrogels demonstrate feasibility of storage, and extended release of large quantities of an insulin-like growth factor-1 mimetic protein (8 mg mL-1 ) over four weeks. The release rate is primarily governed by ionic exchange and can be upregulated by low pH, which is typical for injured tissues. A rodent model of Achilles tendon injury is used to demonstrate that the composite hydrogels allow for highly extended and localized release of biological drugs in vivo, while demonstrating biodegradation and biocompatibility. These attributes make the composite hydrogel a promising system for drug delivery and regenerative medicine.
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Affiliation(s)
- Jianyu Li
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA, 02138, USA
- Department of Mechanical Engineering, McGill University, Montreal, QC, H3A 0C3, Canada
| | - Eckhard Weber
- Novartis Institutes for BioMedical Research, Fabrikstrasse 2, Novartis Campus, Basel, CH, 4056, Switzerland
| | - Sabine Guth-Gundel
- Novartis Institutes for BioMedical Research, Fabrikstrasse 2, Novartis Campus, Basel, CH, 4056, Switzerland
| | - Michael Schuleit
- Novartis Institutes for BioMedical Research, Fabrikstrasse 2, Novartis Campus, Basel, CH, 4056, Switzerland
| | - Andreas Kuttler
- Novartis Institutes for BioMedical Research, Fabrikstrasse 2, Novartis Campus, Basel, CH, 4056, Switzerland
| | - Christine Halleux
- Novartis Institutes for BioMedical Research, Fabrikstrasse 2, Novartis Campus, Basel, CH, 4056, Switzerland
| | - Nathalie Accart
- Novartis Institutes for BioMedical Research, Fabrikstrasse 2, Novartis Campus, Basel, CH, 4056, Switzerland
| | - Arno Doelemeyer
- Novartis Institutes for BioMedical Research, Fabrikstrasse 2, Novartis Campus, Basel, CH, 4056, Switzerland
| | - Anne Basler
- Novartis Institutes for BioMedical Research, Fabrikstrasse 2, Novartis Campus, Basel, CH, 4056, Switzerland
| | - Bruno Tigani
- Novartis Institutes for BioMedical Research, Fabrikstrasse 2, Novartis Campus, Basel, CH, 4056, Switzerland
| | - Kuno Wuersch
- Novartis Institutes for BioMedical Research, Fabrikstrasse 2, Novartis Campus, Basel, CH, 4056, Switzerland
| | - Mara Fornaro
- Novartis Institutes for BioMedical Research, Fabrikstrasse 2, Novartis Campus, Basel, CH, 4056, Switzerland
| | - Michaela Kneissel
- Novartis Institutes for BioMedical Research, Fabrikstrasse 2, Novartis Campus, Basel, CH, 4056, Switzerland
| | - Alexander Stafford
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA, 02138, USA
| | - Benjamin R Freedman
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA, 02138, USA
| | - David J Mooney
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA, 02138, USA
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43
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Chen F, Zhou D, Wang J, Li T, Zhou X, Gan T, Handschuh-Wang S, Zhou X. Rational Fabrication of Anti-Freezing, Non-Drying Tough Organohydrogels by One-Pot Solvent Displacement. Angew Chem Int Ed Engl 2018; 57:6568-6571. [PMID: 29656553 DOI: 10.1002/anie.201803366] [Citation(s) in RCA: 175] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 04/10/2018] [Indexed: 01/20/2023]
Abstract
Tough hydrogels, polymeric network structures with excellent mechanical properties (such as high stretchability and toughness), are emerging soft materials. Despite their remarkably mechanical features, tough hydrogels exhibit two flaws (freezing around the icing temperatures of water and drying under arid conditions). Inspired by cryoprotectants (CPAs) used in the inhibition of the icing of water in biological samples, a versatile and straightforward method is reported to fabricate extreme anti-freezing, non-drying CPA-based organohydrogels with long-term stability by partially displacing water molecules within the pre-fabricated hydrogels. CPA-based Ca-alginate/polyacrylamide (PAAm) tough hydrogels were successfully fabricated with glycerol, glycol, and sorbitol. The CPA-based organohydrogels remain unfrozen and mechanically flexible even up to -70 °C and are stable under ambient conditions or even vacuum.
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Affiliation(s)
- Fan Chen
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, P. R. China
| | - Dan Zhou
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, P. R. China
| | - Jiahui Wang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, P. R. China
| | - Tianzhen Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, P. R. China
| | - Xiaohu Zhou
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, P. R. China
| | - Tiansheng Gan
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, P. R. China
| | - Stephan Handschuh-Wang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, P. R. China
| | - Xuechang Zhou
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, P. R. China
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44
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Wei S, Qu G, Luo G, Huang Y, Zhang H, Zhou X, Wang L, Liu Z, Kong T. Scalable and Automated Fabrication of Conductive Tough-Hydrogel Microfibers with Ultrastretchability, 3D Printability, and Stress Sensitivity. ACS Appl Mater Interfaces 2018; 10:11204-11212. [PMID: 29504395 DOI: 10.1021/acsami.8b00379] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Creating complex three-dimensional structures from soft yet durable materials enables advances in fields such as flexible electronics, regenerating tissue engineering, and soft robotics. Tough hydrogels that mimic the human skin can bear enormous mechanical loads. By employing a spider-inspired biomimetic microfluidic nozzle, we successfully achieve continuous printing of tough hydrogels into fibers, two-dimensional networks, and even three-dimensional structures without compromising their extreme mechanical properties. The resultant thin fibers demonstrate a stretch up to 21 times of their original length at a water content of 52%, and are intrinsically transparent, biocompatible, and conductive at high stretches. Moreover, the printed robust tough-hydrogel networks can sense strain that are orders of magnitude lower than stretchable conductors by percolations of conductive particles. To demonstrate their potential application, we use printed tough-hydrogel fiber networks as wearable sensors for detecting human motions. The capability to shape tough hydrogels into complex structures by scalable continuous printing opens opportunities for new areas of applications such as tissue scaffolds, large-area soft electronics, and smart textiles.
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Affiliation(s)
| | | | | | | | | | | | - Liqiu Wang
- Department of Mechanical Engineering , University of Hong Kong , Pokfulam Road, 999077 , Hong Kong
- HKU-Zhejiang Institute of Research and Innovation (HKU-ZIRI) , Hangzhou 310000 , Zhejiang , China
| | | | - Tiantian Kong
- HKU-Zhejiang Institute of Research and Innovation (HKU-ZIRI) , Hangzhou 310000 , Zhejiang , China
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45
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Zhou X, Li T, Wang J, Chen F, Zhou D, Liu Q, Li B, Cheng J, Zhou X, Zheng B. Mechanochemical Regulated Origami with Tough Hydrogels by Ion Transfer Printing. ACS Appl Mater Interfaces 2018; 10:9077-9084. [PMID: 29465225 DOI: 10.1021/acsami.8b01610] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Stimuli-responsive hydrogels that undergo programmable shape deformation are of great importance for a wide variety of applications spanning from soft robotics and biomedical devices to tissue engineering and drug delivery. To guide shape morphing, anisotropic elements need to be encoded into the hydrogels during fabrication, which are extremely difficult to alter afterward. This study reports a simple and reliable mechanochemical regulation strategy to postengineer the hydrogels by encoding structures of high stiffness locally into prestretched tough hydrogels through ion transfer printing with a paper-cut. During printing, trivalent ions (Fe3+) were patterned and diffused into the prestretched tough gels, which dramatically increased the local stiffness by forming the second trivalent ionically cross-linked network. By removing the applied stretching force, the stiff anisotropy-encoded prestretched tough hydrogels underwent programmable shape morphing into complex three-dimensional origami structures due to the stiffness mismatch.
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Affiliation(s)
- Xiaohu Zhou
- College of Chemistry and Environmental Engineering , Shenzhen University , Shenzhen 518060 , P. R. China
- Department of Chemistry , The Chinese University of Hong Kong , Shatin, N.T. , Hong Kong SAR , P. R. China
| | - Tianzhen Li
- College of Chemistry and Environmental Engineering , Shenzhen University , Shenzhen 518060 , P. R. China
| | - Jiahui Wang
- College of Chemistry and Environmental Engineering , Shenzhen University , Shenzhen 518060 , P. R. China
| | - Fan Chen
- College of Chemistry and Environmental Engineering , Shenzhen University , Shenzhen 518060 , P. R. China
| | - Dan Zhou
- College of Chemistry and Environmental Engineering , Shenzhen University , Shenzhen 518060 , P. R. China
| | - Qi Liu
- Department of Chemistry , The Chinese University of Hong Kong , Shatin, N.T. , Hong Kong SAR , P. R. China
| | - Baijia Li
- College of Chemistry and Environmental Engineering , Shenzhen University , Shenzhen 518060 , P. R. China
| | - Jingyue Cheng
- College of Chemistry and Environmental Engineering , Shenzhen University , Shenzhen 518060 , P. R. China
| | - Xuechang Zhou
- College of Chemistry and Environmental Engineering , Shenzhen University , Shenzhen 518060 , P. R. China
| | - Bo Zheng
- Department of Chemistry , The Chinese University of Hong Kong , Shatin, N.T. , Hong Kong SAR , P. R. China
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46
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Abstract
Hydrogels have been proposed for sensing, drug delivery, and soft robotics applications, yet most of these materials suffer from low mechanical robustness and high permeability to small molecules, limiting their widespread use. This study reports a general strategy and versatile method to fabricate robust, highly stretchable, and impermeable hydrogel laminates via hybrid lamination of an elastomer layer bonded between hydrogel layers. By controlling the layers' composition and thickness, it is possible to tune the stiffness of the impermeable hydrogels without sacrificing the stretchability. These hydrogel laminates exhibit ultralow surface coefficients of friction and, unlike common single-material hydrogels, do not allow diffusion of various molecules across the structure due to the presence of the elastomer layer. This feature is then used to release different model drugs and, in a subsequent experiment, to sense different pH conditions on the two sides of the hydrogel laminate. A potential healthcare application is shown using the presented method to coat medical devices (catheter, tubing, and condom) with hydrogel, to allow for drug release and sensing of environmental conditions for gastrointestinal or urinary tract.
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Affiliation(s)
- German A. Parada
- Soft Active Materials Laboratory Department of Mechanical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Hyunwoo Yuk
- Soft Active Materials Laboratory Department of Mechanical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Xinyue Liu
- Soft Active Materials Laboratory Department of Mechanical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Alex J. Hsieh
- U.S. Army Research Laboratory RDRL‐WMM‐G Aberdeen Proving Ground MD 21005‐5069 USA
| | - Xuanhe Zhao
- Soft Active Materials Laboratory Department of Mechanical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
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47
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La TG, Li X, Kumar A, Fu Y, Yang S, Chung HJ. Highly Flexible, Multipixelated Thermosensitive Smart Windows Made of Tough Hydrogels. ACS Appl Mater Interfaces 2017; 9:33100-33106. [PMID: 28836752 DOI: 10.1021/acsami.7b08907] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In a cold night, a clear window that will become opaque while retaining the indoor heat is highly desirable for both privacy and energy efficiency. A thermally responsive material that controls both the transmittance of solar radiance (predominantly in the visible and near-infrared wavelengths) and blackbody radiation (mainly in the mid-infrared) can realize such windows with minimal energy consumption. Here, we report a smart coating made from polyampholyte hydrogel (PAH) that transforms from a transparency state to opacity to visible radiation and strengthens opacity to mid-infrared when lowering the temperature as a result of phase separation between the water-rich and polymer-rich phases. To match a typical temperature fluctuation during the day, we fine-tune the phase transition temperature between 25 and 55 °C by introducing a small amount of relatively hydrophobic monomers (0.1 to 0.5 wt % to PAH). To further demonstrate an actively controlled, highly flexible, and high-contrast smart window, we build in an array of electric heaters made of printed elastomeric composite. The multipixelated window offers rapid switching, ∼70 s per cycle, whereas the device can withstand high strain (up to 80%) during operations.
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Affiliation(s)
- Thanh-Giang La
- Department of Chemical and Materials Engineering, University of Alberta , Edmonton, Alberta T6G1H9, Canada
- Institute for Reconstructive Sciences in Medicine (iRSM), Misericordia Community Hospital , Edmonton, Alberta T5R4H5, Canada
- Department of Communication Sciences and Disorders, University of Alberta , Edmonton, Alberta T6G2G4, Canada
| | - Xinda Li
- Department of Chemical and Materials Engineering, University of Alberta , Edmonton, Alberta T6G1H9, Canada
| | - Amit Kumar
- Department of Chemical and Materials Engineering, University of Alberta , Edmonton, Alberta T6G1H9, Canada
| | - Yiyang Fu
- Department of Electrical and Computer Engineering, University of Alberta , Edmonton, Alberta T6G1H9, Canada
| | - Shu Yang
- Department of Materials Science and Engineering, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States
| | - Hyun-Joong Chung
- Department of Chemical and Materials Engineering, University of Alberta , Edmonton, Alberta T6G1H9, Canada
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48
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Ma J, Lee J, Han SS, Oh KH, Nam KT, Sun JY. Highly Stretchable and Notch-Insensitive Hydrogel Based on Polyacrylamide and Milk Protein. ACS Appl Mater Interfaces 2016; 8:29220-29226. [PMID: 27749026 DOI: 10.1021/acsami.6b10912] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Protein-based hydrogels have received attention for biomedical applications and tissue engineering because they are biocompatible and abundant. However, the poor mechanical properties of these hydrogels remain a hurdle for practical use. We have developed a highly stretchable and notch-insensitive hydrogel by integrating casein micelles into polyacrylamide (PAAm) networks. In the casein-PAAm hybrid gels, casein micelles and polyacrylamide chains synergistically enhance the mechanical properties. Casein-PAAm hybrid gels are highly stretchable, stretching to more than 35 times their initial length under uniaxial tension. The hybrid gels are notch-insensitive and tough with a fracture energy of approximately 3000 J/m2. A new mechanism of energy dissipation that includes friction between casein micelles and plastic deformation of casein micelles was suggested.
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Affiliation(s)
- Jinwoo Ma
- Department of Material Science and Engineering, Seoul National University , Seoul 151-742, South Korea
| | - Jaehun Lee
- Department of Material Science and Engineering, Seoul National University , Seoul 151-742, South Korea
| | - Sang Sub Han
- Department of Material Science and Engineering, Seoul National University , Seoul 151-742, South Korea
| | - Kyu Hwan Oh
- Department of Material Science and Engineering, Seoul National University , Seoul 151-742, South Korea
| | - Ki Tae Nam
- Department of Material Science and Engineering, Seoul National University , Seoul 151-742, South Korea
| | - Jeong-Yun Sun
- Department of Material Science and Engineering, Seoul National University , Seoul 151-742, South Korea
- Research Institute of Advanced Materials (RIAM), Seoul National University , Seoul 151-744, South Korea
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49
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Yang Y, Wang C, Wiener CG, Hao J, Shatas S, Weiss RA, Vogt BD. Tough Stretchable Physically-Cross-linked Electrospun Hydrogel Fiber Mats. ACS Appl Mater Interfaces 2016; 8:22774-22779. [PMID: 27548013 DOI: 10.1021/acsami.6b08255] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Nature uses supramolecular interactions and hierarchical structures to produce water-rich materials with combinations of properties that are challenging to obtain in synthetic systems. Here, we demonstrate hierarchical supramolecular hydrogels from electrospun, self-associated copolymers with unprecedented elongation and toughness for high porosity hydrogels. Hydrophobic association of perfluoronated comonomers provides the physical cross-links for these hydrogels based on copolymers of dimethyl acrylamide and 2-(N-ethylperfluorooctane sulfonamido)ethyl methacrylate (FOSM). Intriguingly, the hydrogel fiber mats show an enhancement in toughness in comparison to compression molded bulk hydrogels. This difference is attributed to the size distribution of the hydrophobic aggregates where narrowing the distribution in the electrospun material enhances the toughness of the hydrogel. These hydrogel fiber mats exhibit extensibility more than double that of the bulk hydrogel and a comparable modulus despite the porosity of the fiber mat leading to >25 wt % increase in water content.
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Affiliation(s)
- Yiming Yang
- Department of Polymer Engineering, University of Akron , 250 South Forge Street, Akron, Ohio 44325, United States
| | - Chao Wang
- Department of Polymer Engineering, University of Akron , 250 South Forge Street, Akron, Ohio 44325, United States
| | - Clinton G Wiener
- Department of Polymer Engineering, University of Akron , 250 South Forge Street, Akron, Ohio 44325, United States
| | - Jinkun Hao
- Department of Polymer Engineering, University of Akron , 250 South Forge Street, Akron, Ohio 44325, United States
| | - Sophia Shatas
- Department of Polymer Engineering, University of Akron , 250 South Forge Street, Akron, Ohio 44325, United States
| | - R A Weiss
- Department of Polymer Engineering, University of Akron , 250 South Forge Street, Akron, Ohio 44325, United States
| | - Bryan D Vogt
- Department of Polymer Engineering, University of Akron , 250 South Forge Street, Akron, Ohio 44325, United States
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50
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Zhang HJ, Sun TL, Zhang AK, Ikura Y, Nakajima T, Nonoyama T, Kurokawa T, Ito O, Ishitobi H, Gong JP. Tough Physical Double-Network Hydrogels Based on Amphiphilic Triblock Copolymers. Adv Mater 2016; 28:4884-90. [PMID: 27117393 DOI: 10.1002/adma.201600466] [Citation(s) in RCA: 253] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 02/26/2016] [Indexed: 05/22/2023]
Abstract
A series of physical double-network hydrogels is synthesized based on an amphiphilic triblock copolymer. The gel, which contains strong hydrophobic domains and sacrificial dynamic bonds of hydrogen bonds, is stiff and tough, and even stiffens in concentrated saline solution. Furthermore, due to its supramolecular structure, the gel features improved self-healing and self-recovery abilities.
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Affiliation(s)
- Hui Jie Zhang
- Graduate School of Life Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Tao Lin Sun
- Faculty of Advanced Life Science, Hokkaido University, Sapporo, 060-0810, Japan
- Global Station for Soft Matter, Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo, 060-0810, Japan
| | - Ao Kai Zhang
- Graduate School of Life Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Yumihiko Ikura
- Faculty of Advanced Life Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Tasuku Nakajima
- Faculty of Advanced Life Science, Hokkaido University, Sapporo, 060-0810, Japan
- Global Station for Soft Matter, Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo, 060-0810, Japan
| | - Takayuki Nonoyama
- Faculty of Advanced Life Science, Hokkaido University, Sapporo, 060-0810, Japan
- Global Station for Soft Matter, Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo, 060-0810, Japan
| | - Takayuki Kurokawa
- Faculty of Advanced Life Science, Hokkaido University, Sapporo, 060-0810, Japan
- Global Station for Soft Matter, Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo, 060-0810, Japan
| | - Osamu Ito
- Otsuka Chemical Co. Ltd, Osaka, 540-0021, Japan
| | | | - Jian Ping Gong
- Faculty of Advanced Life Science, Hokkaido University, Sapporo, 060-0810, Japan
- Global Station for Soft Matter, Global Institution for Collaborative Research and Education, Hokkaido University, Sapporo, 060-0810, Japan
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