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Tang Y, Si M, Wang YJ, Zhou J, Deng Y, Xia K, Jiang Z, Zhang D, Zheng SY, Yang J. Endocytosis-Inspired Zwitterionic Gel Tape for High-Efficient and Sustainable Underoil Adhesion. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2407501. [PMID: 39248332 DOI: 10.1002/advs.202407501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Revised: 08/28/2024] [Indexed: 09/10/2024]
Abstract
Marine oil exploration is important yet greatly increases the risk of oil leakage, which will result in severe environment pollution and economic losses. It is an urgent need to develop effective underoil adhesives. However, realizing underoil adhesion is even harder than those underwater, due to the stubborn attachment of a highly viscous oil layer on target surface. Here, inspired by endocytosis, a tough gel tape composed of zwitterionic polymer network and zwitterionic surfactants is developed. The amphiphilic surfactants can form micelle to capture the oil droplets and transport them from the interface to gel via electrostatic attraction of polymer backbone, mimicking the endocytosis and achieving robust underoil adhesion. Benefiting from the oil-resistance of polymer backbone, the gel further realizes a combination of i) long-term adhesion with high durability, ii) repeated adhesion in oil, and iii) renewable adhesion efficiency after exhausted use. The tape exhibits an ultra-high adhesive toughness of 2446.86 J m-2 to stainless steel in silicone oil after 30 days' oil-exposure; such value of adhesive toughness surpasses many of those achieved in underwater adhesion and is greater than underoil adhesion performance of commercial tape. The strategy illustrated here will motivate the design of sustainable and efficient adhesives for wet environments.
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Affiliation(s)
- Yueman Tang
- College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Mengjie Si
- College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Yan-Jie Wang
- School of Materials Science and Engineering, Tiangong University, Tianjin, 300387, P. R. China
| | - Jiahui Zhou
- College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Yuming Deng
- College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Kaishun Xia
- Department of Orthopedics, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, P. R. China
| | - Zhen Jiang
- School of Mechanical Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Dong Zhang
- Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Si Yu Zheng
- College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
| | - Jintao Yang
- College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China
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2
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Dong C, d'Aquino AI, Sen S, Hall IA, Yu AC, Crane GB, Acosta JD, Appel EA. Water-Enhancing Gels Exhibiting Heat-Activated Formation of Silica Aerogels for Protection of Critical Infrastructure During Catastrophic Wildfire. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2407375. [PMID: 39169738 DOI: 10.1002/adma.202407375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 07/18/2024] [Indexed: 08/23/2024]
Abstract
A promising strategy to address the pressing challenges with wildfire, particularly in the wildland-urban interface (WUI), involves developing new approaches for preventing and controlling wildfire within wildlands. Among sprayable fire-retardant materials, water-enhancing gels have emerged as exceptionally effective for protecting civil infrastructure. They possess favorable wetting and viscoelastic properties that reduce the likelihood of ignition, maintaining strong adherence to a wide array of surfaces after application. Although current water-enhancing hydrogels effectively maintain surface wetness by creating a barricade, they rapidly desiccate and lose efficacy under high heat and wind typical of wildfire conditions. To address this limitation, unique biomimetic hydrogel materials from sustainable cellulosic polymers crosslinked by colloidal silica particles are developed that exhibit ideal viscoelastic properties and facile manufacturing. Under heat activation, the hydrogel transitions into a highly porous and thermally insulative silica aerogel coating in situ, providing a robust protective layer against ignition of substrates, even when the hydrogel fire suppressant becomes completely desiccated. By confirming the mechanical properties, substrate adherence, and enhanced substrate protection against fire, these heat-activatable biomimetic hydrogels emerge as promising candidates for next-generation water-enhancing fire suppressants. These advancements have the potential to dramatically improve the ability to protect homes and critical infrastructure during wildfire.
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Affiliation(s)
- Changxin Dong
- Department of Materials Science & Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Andrea I d'Aquino
- Department of Materials Science & Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Samya Sen
- Department of Materials Science & Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Ian A Hall
- Department of Bioengineering, Stanford University, Stanford, CA, 94305, USA
| | - Anthony C Yu
- Department of Materials Science & Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Gabriel B Crane
- Department of Materials Science & Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Jesse D Acosta
- Department of Natural Resource Management & Environmental Sciences, California Polytechnic State University, San Luis Obispo, CA, 93407, USA
| | - Eric A Appel
- Department of Materials Science & Engineering, Stanford University, Stanford, CA, 94305, USA
- Department of Bioengineering, Stanford University, Stanford, CA, 94305, USA
- Stanford ChEM-H Institute, Stanford University, Stanford, CA, 94305, USA
- Woods Institute for the Environment, Stanford University, Stanford, CA, 94305, USA
- Department of Pediatrics-Endocrinology, Stanford University School of Medicine, Stanford, CA, 94305, USA
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3
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Wang S, Ou R, Li J, Jin K, Yu L, Murto P, Wang Z, Xu X. Deformation-Resistant Underwater Adhesion in a Wide Salinity Range. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403350. [PMID: 38988140 DOI: 10.1002/smll.202403350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 06/12/2024] [Indexed: 07/12/2024]
Abstract
Conventional adhesives experience reduced adhesion when exposed to aqueous environments. The development of underwater adhesives capable of forming strong and durable bonds across various wet substrates is crucial in biomedical and engineering domains. Nonetheless, limited emphasis placed on retaining high adhesion strengths in different saline environments, addressing challenges such as elevated osmotic pressure and spontaneous dimensional alterations. Herein, a series of ionogel-based underwater adhesives are developed using a copolymerization approach that incorporates "dynamic complementary cross-linking" networks. Synergistic engineering of building blocks, cross-linking networks, pendant groups and counterions within ionogels ensures their adhesion and cohesion in brine spanning a wide salinity range. A high adhesion strength of ≈3.6 MPa is attained in freshwater. Gratifyingly, steady adhesion strengths exceeding 3.3 MPa are retained in hypersaline solutions with salinity ranging from 50 to 200 g kg-1, delivering one of the best-performing underwater adhesives suitable for diverse saline solutions. A combination of outstanding durability, reliability, deformation resistance, salt tolerance, and self-healing properties showcases the "self-contained" underwater adhesion. This study shines light on the facile fabrication of catechol-free ionogel-based adhesives, not merely boosting adhesion strengths in freshwater, but also broadening their applicability across various saline environments.
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Affiliation(s)
- Shuxue Wang
- College of Materials Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Richang Ou
- College of Materials Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Jingjing Li
- College of Materials Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Kai Jin
- College of Materials Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Liangmin Yu
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Petri Murto
- Yusuf Hamied Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK
| | - Zhihang Wang
- Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, CB3 0FS, UK
| | - Xiaofeng Xu
- College of Materials Science and Engineering, Ocean University of China, Qingdao, 266100, China
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4
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Wang S, He X, Wang G, Zheng SY, Yang J. Multiresponsive Bilayer Hydrogel Actuator with Switchable Shape Morphing Capability and Visible Color/Fluorescence Change. ACS APPLIED MATERIALS & INTERFACES 2024; 16:34125-34134. [PMID: 38888298 DOI: 10.1021/acsami.4c06121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
Bilayer hydrogels, endowed with multiresponsive and switchable color-changing properties, have garnered significant attention for bioinspired artificial intelligent materials. However, the design and fabrication of such hydrogels that can fully mimic the adaptation of the live organism, i.e., simultaneous changes in shape, fluorescent, and/or visible color, still remain significant challenges. Herein, a multiresponsive (e.g., temperature, salt, and pH) and multiadaptive (shape, fluorescent color, and visible color changes) hydrogel was fabricated by employing monomers featuring pH-responsive fluorescence 4-(2-(4-(dimethylamino) phenyl)-1-isocyanovinyl) phenol (DP) and switchable color-changing 4-(2-sulfethyl) -1-(4-vinylbenzyl) pyridinium betaine (VPES). The bilayer hydrogel comprises a temperature- and pH-responsive gel layer, poly(N-isopropylacrylamide-co-2-(dimethylamino) ethyl methacrylate), along with a pH-, temperature-, and salt-responsive gel layer, poly(acrylamide-co-2-(dimethylamino)ethyl methacrylate-co-VPES)@DP. Due to the opposite swelling/shrinking behavior between the two layers, the prepared hydrogel exhibits shape changes in response to thermal, salt, and pH stimuli, along with switchable fluorescent color and visible color change that originate from DP and polyVPES, respectively. Apart from multiresponsive behavior, this hydrogel also shows an excellent antifatigue property and high sensitivity, which makes it hold significant potential in many applications. We anticipate that this strategy to realize multiresponsive capability in this work can also inspire the design of the biomimetic smart materials.
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Affiliation(s)
- Shuaibing Wang
- Zhejiang Key Laboratory of Plastic Modification and Processing Technology, College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Xiaomin He
- Zhejiang Key Laboratory of Plastic Modification and Processing Technology, College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Gaopeng Wang
- Zhejiang Key Laboratory of Plastic Modification and Processing Technology, College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Si Yu Zheng
- Zhejiang Key Laboratory of Plastic Modification and Processing Technology, College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Jintao Yang
- Zhejiang Key Laboratory of Plastic Modification and Processing Technology, College of Materials Science & Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
- Pinghu Institute of Advanced Materials, Zhejiang University of Technology, Hangzhou 310014,P.R. China
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5
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Chen Y, Estevez D, Zhu Z, Wang Y, Mai YW, Qin F. Multifunctional Conductive Hydrogel Composites with Nickel Nanowires and Liquid Metal Conductive Highways. ACS APPLIED MATERIALS & INTERFACES 2024; 16:29267-29281. [PMID: 38780052 DOI: 10.1021/acsami.4c05344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
The dramatic growth of smart wearable electronics has generated a demand for conductive hydrogels due to their tunability, stimulus responsiveness, and multimodal sensing capabilities. However, the substantial trade-off between mechanical and electrical properties hinders their multifunctionality. Here, we report a double-network hydrogel composite that features a conductive "highway" constructed using magnetic-field-aligned nickel nanowires and liquid metal. The liquid metal fills the gaps between the aligned nickel nanowires. Such interconnected structures can form efficient conductive paths at low filler content, resulting in high conductivity (1.11 × 104 S/m) and mechanical compliance (Young's modulus, 89 kPa; toughness, 721 kJ/m3). When used as a wearable sensor, the hydrogel displays a high sensitivity and fast response for wireless motion detection and human-machine interaction. Furthermore, by exploiting its outstanding conductivity and electrical heating capacity, the hydrogel integrates electromagnetic shielding and thermal management functionalities. Owing to these all-around properties, our design offers a broader platform for expanding hydrogel applications.
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Affiliation(s)
- Yanlin Chen
- Institute for Composites Science Innovation (InCSI), School of Materials Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
| | - Diana Estevez
- Ningbo Innovation Center, Zhejiang University, 1 South Qianhu Road, Ningbo 315100, P. R. China
| | - Zihao Zhu
- Institute for Composites Science Innovation (InCSI), School of Materials Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
| | - Yunfei Wang
- Institute for Composites Science Innovation (InCSI), School of Materials Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
| | - Yiu-Wing Mai
- Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 999077, P. R. China
| | - Faxiang Qin
- Institute for Composites Science Innovation (InCSI), School of Materials Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
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6
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Li C, Yuan H, Liu T, Zhang R, Zhu J, Cui H, Wang Y, Cao D, Wang D, Zhi C. Distinguish MnO 2/Mn 2+ Conversion/ Zn 2+ Intercalation/ H + Conversion Chemistries at Different Potentials in Aqueous Zn||MnO 2 Batteries. Angew Chem Int Ed Engl 2024; 63:e202403504. [PMID: 38563637 DOI: 10.1002/anie.202403504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 03/31/2024] [Accepted: 04/01/2024] [Indexed: 04/04/2024]
Abstract
The rechargeable aqueous Zn||MnO2 chemistry has been extensively explored, but its electrochemical reaction mechanisms, especially in the context of MnO2/Mn2+ conversion and Zn2+/H+ intercalation chemistry, remain not fully understood. Here, we designed an amphiphilic hydrogel electrolyte, which distinguished the MnO2/Mn2+ conversion, Zn2+ intercalation, and H+ intercalation and conversion processes at three distinct discharge plateaus of an aqueous Zn||MnO2 battery. The amphiphilic hydrogel electrolyte is featured with an extended electrochemical stability window up to 3.0 V, high ionic conductivity, Zn2+-selective ion tunnels, and hydrophobic associations with cathode materials. This specifically designed electrolyte allows the MnO2/Mn2+ conversion reaction at a discharge plateau of 1.75 V. More interesting, the discharge plateaus of ~1.33 V, previously assigned as the co-intercalation of Zn2+ and H+ ions in the MnO2 cathode, are specified as the exclusive intercalation of Zn2+ ions, leading to an ultra-flat voltage plateau. Furthermore, with a distinct three-step electrochemical energy storage process, a high areal capacity of 1.8 mAh cm-2 and high specific energy of 0.858 Wh cm-2, even at a low MnO2 loading mass of 0.5 mg cm-2 are achieved. To our knowledge, this is the first report to fully distinguish different mechanisms at different potentials in aqueous Zn||MnO2 batteries.
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Affiliation(s)
- Chuan Li
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, 999077, China
| | - Haonan Yuan
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Tong Liu
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Rong Zhang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, 999077, China
| | - Jiaxiong Zhu
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, 999077, China
| | - Huilin Cui
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, 999077, China
| | - Yanbo Wang
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, 999077, China
| | - Duanyun Cao
- Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
- Chongqing Innovation Center, Beijing Institute of Technology, Chongqing, 401120, China
| | - Donghong Wang
- School of Materials Science and Engineering, Anhui University of Technology, Ma'anshan, 243032, Anhui, China
| | - Chunyi Zhi
- Department of Materials Science and Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong, 999077, China
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon, 999077, Hong Kong
- Hong Kong Institute for Advanced Study, City University of Hong Kong, Kowloon, Hong Kong, 999077, China
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7
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Xue Y, Lai X, Wang L, Shi H, Liu G, Liu X, Chen X. A stimuli-responsive hydrogel for reversible information storage, encryption and decryption. J Colloid Interface Sci 2024; 662:231-241. [PMID: 38350346 DOI: 10.1016/j.jcis.2024.02.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/22/2024] [Accepted: 02/06/2024] [Indexed: 02/15/2024]
Abstract
Smart hydrogel materials, known for their sensitivity to external stimuli, exhibit a reversible dynamic response and find applications in diverse fields, particularly in information storage. Despite significant efforts in this domain, developing a hydrogel with high-resolution, repeatable recording, and robust information encryption/decryption capabilities still remains a challenge. In this study, we synthesized a polymer hydrogel, namely polyvinyl alcohol-n-isopropylacrylamide-octadecyl polyoxyethylene ether acrylate hydrogel (PPNS), which features multiple hydrogen bonds through copolymerization, by using N-isopropylacrylamide, polyvinyl alcohol, and octadecyl polyoxyethylene ether acrylate (SGA15) as raw materials. The PPNS hydrogel demonstrated outstanding high-resolution, repeatable recording capabilities, enabling reversible recording, encryption, and decryption of information using anhydrous ethanol as the inducer. Varying the SGA15 monomer concentration revealed that the PPNS-2% hydrogel, prepared with 2% SGA15, outperformed the other hydrogels in terms of information recording and encryption/decryption when immersed in anhydrous ethanol and deionized water. Furthermore, the PPNS-2% hydrogel exhibited the ability to undergo multiple information cycles while maintaining excellent mechanical properties even after 25 cycles. Notably, ethanol served as a specialized ink for inscribing different patterns on the hydrogel surface for information recording. The recorded information could be erased through water wiping or ethanol volatilization, enabling reversible information recording, encryption, and decryption. Due to their responsive and dynamic nature of PPNS hydrogels are positions them as promising candidates for use as innovative information storage platforms.
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Affiliation(s)
- Yuyu Xue
- Key Laboratory of Auxiliary Chemistry &Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science &Technology, Weiyang district, Xi'an 710021, PR China
| | - Xiaojuan Lai
- Key Laboratory of Auxiliary Chemistry &Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science &Technology, Weiyang district, Xi'an 710021, PR China; Shaanxi Research Institute of Agricultural Products Processing Technology, Weiyang district, Xi'an 710021, PR China.
| | - Lei Wang
- Key Laboratory of Auxiliary Chemistry &Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science &Technology, Weiyang district, Xi'an 710021, PR China; Shaanxi Research Institute of Agricultural Products Processing Technology, Weiyang district, Xi'an 710021, PR China.
| | - Huaqiang Shi
- Research Institute of Oil & Gas Technology, Changqing Oilfield Branch Company, Xi'an 710021, PR China
| | - Guiru Liu
- Key Laboratory of Auxiliary Chemistry &Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science &Technology, Weiyang district, Xi'an 710021, PR China
| | - Xuan Liu
- Key Laboratory of Auxiliary Chemistry &Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science &Technology, Weiyang district, Xi'an 710021, PR China
| | - XiangLi Chen
- Key Laboratory of Auxiliary Chemistry &Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science &Technology, Weiyang district, Xi'an 710021, PR China
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Zhao M, Wu J, Zeng F, Dong Z, Shen X, Hua Z, Liu G. Wetting-enhanced adhesion of photo-polymerized supramolecular adhesives for both smooth and rough surfaces. Chem Sci 2024; 15:6445-6453. [PMID: 38699279 PMCID: PMC11062117 DOI: 10.1039/d4sc01188k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 03/27/2024] [Indexed: 05/05/2024] Open
Abstract
Efficient interactions between an adhesive and a substrate surface at the molecular level are the basis for the formation of robust adhesion, which substantially relies on interfacial wetting. However, strong adhesives usually improve cohesion but compromise interfacial properties. Herein, we have reported a kind of robust supramolecular adhesive based on the outstanding mobility and interfacial wettability of adhesive precursors. In situ fast photopolymerization endows supramolecular adhesives with more outstanding adhesion for both smooth and rough surfaces in air and underwater in contrast to their counterparts from thermal polymerization. In addition to their low viscosity and high monomer concentration, supramolecular adhesive precursors without any organic solvents possess well-defined hydrogen bonding interactions. These superior properties consistently contribute to the wetting of the substrate and the formation of adhesive polymers with high molecular weights. This work highlights that enhancing interfacial wetting between an adhesive and a substrate is a promising route to achieving robust adhesion.
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Affiliation(s)
- Mengyuan Zhao
- Department of Chemical Physics, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China Hefei Anhui 230026 China
| | - Jiang Wu
- Department of Chemical Physics, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China Hefei Anhui 230026 China
| | - Fanxuan Zeng
- Department of Chemical Physics, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China Hefei Anhui 230026 China
| | - Zhi Dong
- Department of Chemical Physics, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China Hefei Anhui 230026 China
| | - Xinyi Shen
- Department of Chemical Physics, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China Hefei Anhui 230026 China
| | - Zan Hua
- The Key Laboratory of Functional Molecular Solids, Ministry of Education, Department of Materials Chemistry, School of Chemistry and Materials Science, Anhui Normal University Wuhu Anhui 214002 China
| | - Guangming Liu
- Department of Chemical Physics, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China Hefei Anhui 230026 China
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9
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Ma P, Liang W, Huang R, Zheng B, Feng K, He W, Huang Z, Shen H, Wang H, Wu D. Super-Structured Wet-Adhesive Hydrogel with Ultralow Swelling, Ultrahigh Burst Pressure Tolerance, and Anti-Postoperative Adhesion Properties for Tissue Adhesion. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2305400. [PMID: 38010313 DOI: 10.1002/adma.202305400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 11/14/2023] [Indexed: 11/29/2023]
Abstract
Wet-adhesive hydrogels have been developed as an attractive strategy for tissue repair. However, achieving simultaneously low swelling and high burst pressure tolerance of wet-adhesive hydrogels is crucial for in vivo application which remains challenges. Herein, a novel super-structured porous hydrogel (denoted as PVA/PAAc-N+ ) is designed via facile moisture-induced phase separation-solvent exchange process for obtaining porous polyvinyl alcohol (PVA) hydrogel as dissipative layer and in situ photocuring technology for entangling quaternary ammonium-functionalized poly(acrylic acid)-based wet-adhesive layer (PAAc-N+ ) with the porous surface of PVA layer. Benefitting from the ionic crosslinking between quaternary ammonium ions and carboxylate ions in PAAc-N+ wet-adhesive layer as well as the high crystallinity induced by abundant hydrogen bonds of PVA layer, the hydrogel has unique ultralow swelling property (0.29) without sacrificing adhesion strength (63.1 kPa). The porous structure of PVA facilitates the mechanical interlock at the interface between PAAc-N+ wet-adhesive layer and tough PVA dissipative layer, leading to the ultrahigh burst pressure tolerance up to 493 mm Hg and effective repair for porcine heart rupture; the PVA layer surface of PVA/PAAc-N+ hydrogel can prevent postoperative adhesion. By integrating ultralow swelling, ultrahigh burst pressure tolerance, and anti-postoperative adhesion properties, PVA/PAAc-N+ hydrogel shows an appealing application prospect for tissue repair.
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Affiliation(s)
- Pengwei Ma
- PCFM Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Weiwen Liang
- Department of General Surgery (Colorectal Surgery), Guangdong Institute of Gastroenterology, Biomedical Innovation Center, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, P. R. China
| | - Rongkang Huang
- Department of General Surgery (Colorectal Surgery), Guangdong Institute of Gastroenterology, Biomedical Innovation Center, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, P. R. China
| | - Bingna Zheng
- Center of Accurate Diagnosis, Treatment and Transformation of Bone and Joint Diseases, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518000, P. R. China
| | - Kangni Feng
- Department of Cardiac Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, P. R. China
| | - Wenyi He
- PCFM Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Zeping Huang
- Department of General Surgery (Colorectal Surgery), Guangdong Institute of Gastroenterology, Biomedical Innovation Center, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, P. R. China
| | - Huiyong Shen
- Center of Accurate Diagnosis, Treatment and Transformation of Bone and Joint Diseases, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518000, P. R. China
| | - Hui Wang
- Department of General Surgery (Colorectal Surgery), Guangdong Institute of Gastroenterology, Biomedical Innovation Center, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510655, P. R. China
| | - Dingcai Wu
- PCFM Lab, School of Chemistry, Sun Yat-sen University, Guangzhou, 510006, P. R. China
- Center of Accurate Diagnosis, Treatment and Transformation of Bone and Joint Diseases, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518000, P. R. China
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10
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Cao Y, Liu X, Du X, Ren X, Jia F, Gao G. Solvent-Resistant Adhesive Gel with Thermal Post-Tunability. ACS APPLIED MATERIALS & INTERFACES 2024; 16:8140-8150. [PMID: 38295314 DOI: 10.1021/acsami.3c18076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
Adhesives have received extensive attention in flexible bioelectronics, wearable electronic medical devices, and biofuel cells. However, it is a challenge to achieve late regulation of performance once polymer-based gels are formed. Here, a double-network organogel composed of a hydrophilic and hydrophobic polymer network and a polyamide acid network was successfully prepared. In diverse liquid environments (including isopropyl alcohol, glycerol, epichlorohydrin, n-propanol, dichloromethane, triethanolamine, ethanol absolute, hydrogen peroxide, and ethyl acetate), the organogel adhesive demonstrated remarkable properties. It exhibits a strong tensile strength of 200 kPa, a high fracture strain reaching 560%, and an impressive adhesion strength of 38 kPa. In addition, the organogel demonstrates exceptional adhesive properties toward polytetrafluoroethylene, plastics, metals, rubber, and glass. Note that the organogel could also regulate adhesive and tough performance by thermally triggering a cyclization reaction even after the organogel has been formed. The strategy provides a new idea for designing soft materials with post-tunability.
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Affiliation(s)
- Yaxuan Cao
- Polymeric and Soft Materials Laboratory, School of Chemical Engineering and Advanced Institute of Materials Science, Changchun University of Technology, No. 2055, Yan'an Street, Changchun 130012, China
| | - Xin Liu
- Polymeric and Soft Materials Laboratory, School of Chemical Engineering and Advanced Institute of Materials Science, Changchun University of Technology, No. 2055, Yan'an Street, Changchun 130012, China
| | - Xuan Du
- Polymeric and Soft Materials Laboratory, School of Chemical Engineering and Advanced Institute of Materials Science, Changchun University of Technology, No. 2055, Yan'an Street, Changchun 130012, China
| | - Xiuyan Ren
- Polymeric and Soft Materials Laboratory, School of Chemical Engineering and Advanced Institute of Materials Science, Changchun University of Technology, No. 2055, Yan'an Street, Changchun 130012, China
| | - Fei Jia
- Polymeric and Soft Materials Laboratory, School of Chemical Engineering and Advanced Institute of Materials Science, Changchun University of Technology, No. 2055, Yan'an Street, Changchun 130012, China
| | - Guanghui Gao
- Polymeric and Soft Materials Laboratory, School of Chemical Engineering and Advanced Institute of Materials Science, Changchun University of Technology, No. 2055, Yan'an Street, Changchun 130012, China
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Li N, Shi JF, Zhang F, Jia LC, Wang YY, Yan DX, Li ZM. Peelable Microwave Absorption Coating with Reusable and Anticorrosion Merits. ACS APPLIED MATERIALS & INTERFACES 2024; 16:6462-6473. [PMID: 38266189 DOI: 10.1021/acsami.3c17805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
The peelable microwave absorption (MA) coating with reversible adhesion for stable presence on substrates and easy release without any residuals is highly desired in temporary electromagnetic protection, which can quickly enter and disengage the electromagnetic protection state according to the real-time changeable harsh surroundings. On the contrary, with the incorporation of abundant absorbent to achieve excellent MA ability, the tunable adhesion and sufficient cohesion are extremely challenging to fulfill the above requirement. The reported peelable coatings still have problems in controlling adhesion/cohesion strength and coating release, facing substantial residuals after peeling even using complex chemical modification or abundant additives. Herein, a peelable MA coating based on the block characteristics of polar and nonpolar segments of poly(styrene-(ethylene-co-butylene)-styrene) (SEBS) is successfully developed. The polyaniline-decorated carbon nanotube as a microwave absorber plays a positive influence on the adhesion/cohesion of the coating due to bonding interaction. The competitive effective absorption bandwidth (EAB) of 8.8 GHz and controllable yet reversible adhesion release on various substrates and complex surfaces have been achieved. The reusability endows peelable MA coating with 93% retention of EAB even after ten coating-peeling cycles. The coating with excellent chemical and adhesion stability can effectively protect substrates from salt/acid/alkali corrosion, showing over 98% retention of EAB even after 8 h of accelerated corrosion. Our peelable MA coating via a general yet reliable approach provides a prospect for temporary electromagnetic protection.
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Affiliation(s)
- Nan Li
- School of Aeronautics and Astronautics, Robotic Satellite Key Laboratory of Sichuan Province, Sichuan University, Chengdu 610065, China
| | - Jun-Feng Shi
- School of Aeronautics and Astronautics, Robotic Satellite Key Laboratory of Sichuan Province, Sichuan University, Chengdu 610065, China
| | - Feng Zhang
- School of Aeronautics and Astronautics, Robotic Satellite Key Laboratory of Sichuan Province, Sichuan University, Chengdu 610065, China
| | - Li-Chuan Jia
- College of Electrical Engineering, Sichuan University, Chengdu 610065, China
| | - Yue-Yi Wang
- School of Aeronautics and Astronautics, Robotic Satellite Key Laboratory of Sichuan Province, Sichuan University, Chengdu 610065, China
| | - Ding-Xiang Yan
- School of Aeronautics and Astronautics, Robotic Satellite Key Laboratory of Sichuan Province, Sichuan University, Chengdu 610065, China
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 10029, China
| | - Zhong-Ming Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
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Zhang X, Ding H, Li Z, Bai Y, Zhang L. A "Mesh Scaffold" that regulates the mechanical properties and restricts the phase transition-induced volume change of the PNIPAM-based hydrogel for wearable sensors. MATERIALS HORIZONS 2024; 11:835-846. [PMID: 38037353 DOI: 10.1039/d3mh01638b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
Poly(N-isopropylacrylamide) (PNIPAM) is capable of improving the reversibility and responsiveness of flexible electronics. However, its phase transition-induced volume variation and poor adhesiveness remain limitations for expending its applications. Herein, a pressure-sensitive adhesive (PSA), which is a type of mesh scaffold, is constructed inside the network of PNIPAM, providing the hydrogel with a constant volume in response to different temperatures, in situ tunable mechanical properties, and superior adhesiveness. The reversible density of the mesh scaffold adjusts the aggregation state of the hydrogel chains, whereupon it is capable of changing its mechanical modulus from 6.7 kPa to 45.3 kPa. This mechanical mechanism contributes to hydrogel-based flexible devices for multiple applications, especially in pressure-related sensors. The mesh scaffold restricts the phase-transition-induced volume variation, which allows the hydrogel sensor to stably monitor the external pressure at various temperatures. The high adhesion enables the effective interfacial interaction with the skin, avoiding the loss of sensing signals during the detection of human body movements. When it is assembled into an electronic device, it can transmit information and recognize sign language via Morse code. Thus, herein, we report a hydrogel sensor that is promising for pressure detection in temperature-unstable environments, especially for managing the health of patients who require emergency medical care through sign language recognition.
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Affiliation(s)
- Xiaoyong Zhang
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, P. R. China.
| | - Haoran Ding
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, P. R. China.
| | - Zhaozhao Li
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, P. R. China.
| | - Yongping Bai
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150000, P. R. China
| | - Lidong Zhang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, P. R. China.
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Tang N, Jiang Y, Wei K, Zheng Z, Zhang H, Hu J. Evolutionary Reinforcement of Polymer Networks: A Stepwise-Enhanced Strategy for Ultrarobust Eutectogels. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2309576. [PMID: 37939373 DOI: 10.1002/adma.202309576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 10/27/2023] [Indexed: 11/10/2023]
Abstract
Gel materials are appealing due to their diverse applications in biomedicine, soft electronics, sensors, and actuators. Nevertheless, the existing synthetic gels are often plagued by feeble network structures and inherent defects associated with solvents, which compromise their mechanical load-bearing capacity and cast persistent doubts about their reliability. Herein, combined with attractive deep eutectic solvent (DES), a stepwise-enhanced strategy is presented to fabricate ultrarobust eutectogels. It focuses on the continuous modulation and optimization of polymer networks through complementary annealing and solvent exchange processes, which drives a progressive increase in both quantity and mass of the interconnected polymer chains at microscopic scale, hence contributing to the evolutionary enhancement of network structure. The resultant eutectogel exhibits superb mechanical properties, including record-breaking strength (31.8 MPa), toughness (76.0 MJ m-3 ), and Young's modulus (25.6 MPa), together with exceptional resistance ability to tear and crack propagation. Moreover, this eutectogel is able to be further programmed through photolithography to in situ create patterned eutectogel for imparting specific functionalities. Enhanced by its broad applicability to various DES combinations, this stepwise-enhanced strategy is poised to serve as a crucial template and methodology for the future development of robust gels.
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Affiliation(s)
- Ning Tang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, North Third Ring Road 15, Chaoyang District, Beijing, 100029, China
| | - Yujia Jiang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, North Third Ring Road 15, Chaoyang District, Beijing, 100029, China
| | - Kailun Wei
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, North Third Ring Road 15, Chaoyang District, Beijing, 100029, China
| | - Zhiran Zheng
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, North Third Ring Road 15, Chaoyang District, Beijing, 100029, China
| | - Hao Zhang
- Department of Mechanical Engineering, Tsinghua University, Shuangqing Road 30, Haidian District, Beijing, 100084, China
| | - Jun Hu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, North Third Ring Road 15, Chaoyang District, Beijing, 100029, China
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