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Guan X, Zheng S, Zhang B, Sun X, Meng K, Elafify MS, Zhu Y, El-Gowily AH, An M, Li D, Han Q. Masking Strategy Constructed Metal Coordination Hydrogels with Improved Mechanical Properties for Flexible Electronic Sensors. ACS APPLIED MATERIALS & INTERFACES 2024; 16:5168-5182. [PMID: 38234121 DOI: 10.1021/acsami.3c18077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Metal coordination hydrogels (MC-HGs) that introduce dynamically coordinate bonds together with metal ionic conduction have attracted considerable attention in flexible electronics. However, the traditional soaking method alleged to have technical scalability faces the challenge of forming MC-HGs with a "core-shell" structure, which undoubtedly reduces the whole mechanical properties and ionic stimulation responsiveness required for flexible electronics materials. Herein, a novel strategy referred to as "masking" has been proposed based on the theory of the valence bond and coordination chemistry. By regulating the masking agents and their concentrations as well as pairing mode with the metal ions, the whole mechanical properties of the resulting composites (MC-HGsMasking) show nearly double the values of their traditional soaking samples (MC-HGsSoaking). For example, the fracture stress and toughness of Fe-HGsMasking(SA, 5.0 g/L) are 1.55 MPa and 2.14 MJ/m3, almost twice those of Fe-HGsSoaking (0.83 MPa and 0.93 MJ/m3, respectively). Microstructure characterization combined with finite element analysis, molecular dynamics, and first-principles simulations demonstrates that the masking strategy first facilitating interfacial permeation of metal complexes and then effective coordination with functional ligands (carboxylates) of the hydrogels is the mechanism to strengthen the mechanical properties of composites MC-HGsMasking, which has the potential to break through the limitations of current MC-HGs in flexible electronic sensor applications.
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Affiliation(s)
- Xiaoyu Guan
- College of Bioresources Chemical and Materials Engineering, Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology, College of Mechanical and Electrical Engineering, Shaanxi University of Science & Technology, Xi'an, Shaanxi 710021, China
- Nano Medical Engineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Key Laboratory of Leather Chemistry and Engineering (Sichuan University), Ministry of Education, Chengdu 610065, China
| | - Sai Zheng
- College of Bioresources Chemical and Materials Engineering, Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology, College of Mechanical and Electrical Engineering, Shaanxi University of Science & Technology, Xi'an, Shaanxi 710021, China
| | - Bingyuan Zhang
- College of Bioresources Chemical and Materials Engineering, Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology, College of Mechanical and Electrical Engineering, Shaanxi University of Science & Technology, Xi'an, Shaanxi 710021, China
| | - Xuhui Sun
- College of Bioresources Chemical and Materials Engineering, Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology, College of Mechanical and Electrical Engineering, Shaanxi University of Science & Technology, Xi'an, Shaanxi 710021, China
| | - Kai Meng
- College of Bioresources Chemical and Materials Engineering, Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology, College of Mechanical and Electrical Engineering, Shaanxi University of Science & Technology, Xi'an, Shaanxi 710021, China
| | - Mohamed S Elafify
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Menoufia University, Gamal Abdel El-Nasr Street, Shebin El-Kom, Menoufia 32511, Egypt
| | - Yanxia Zhu
- College of Bioresources Chemical and Materials Engineering, Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology, College of Mechanical and Electrical Engineering, Shaanxi University of Science & Technology, Xi'an, Shaanxi 710021, China
| | - Afnan H El-Gowily
- Nano Medical Engineering Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Biochemistry Division, Chemistry Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Meng An
- College of Bioresources Chemical and Materials Engineering, Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology, College of Mechanical and Electrical Engineering, Shaanxi University of Science & Technology, Xi'an, Shaanxi 710021, China
| | - Dongping Li
- College of Bioresources Chemical and Materials Engineering, Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology, College of Mechanical and Electrical Engineering, Shaanxi University of Science & Technology, Xi'an, Shaanxi 710021, China
| | - Qingxin Han
- College of Bioresources Chemical and Materials Engineering, Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and Technology, College of Mechanical and Electrical Engineering, Shaanxi University of Science & Technology, Xi'an, Shaanxi 710021, China
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Luo Y, Pauer W, Luinstra GA. Tough, Stretchable, and Thermoresponsive Smart Hydrogels. Gels 2023; 9:695. [PMID: 37754376 PMCID: PMC10528277 DOI: 10.3390/gels9090695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/22/2023] [Accepted: 08/25/2023] [Indexed: 09/28/2023] Open
Abstract
Self-healing, thermoresponsive hydrogels with a triple network (TN) were obtained by copolymerizing N-isopropyl acryl amide (NiPAAm) with polyvinyl alkohol (PVA) functionalized with methacrylic acid and N,N'-methylene bis(acryl amide) crosslinker in the presence of low amounts (<1 wt.%) of tannic acid (TA). The final gels were obtained by crystalizing the PVA in a freeze-thaw procedure. XRD, DCS, and SEM imaging indicate that the crystallinity is lower and the size of the PVA crystals is smaller at higher TA concentrations. A gel with 0.5 wt.% TA has an elongation at a break of 880% at a tension of 1.39 MPa. It has the best self-healing efficiency of 81% after cutting and losing the chemical network. Step-sweep strain experiments show that the gel has thixotropic properties, which are related to the TA/PVA part of the triple network. The low amount of TA leaves the gel with good thermal responsiveness (equilibrium swelling ratio of 13.3). Swelling-deswelling loop tests show enhanced dimensional robustness of the hydrogel, with a substantial constancy after two cycles.
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Affiliation(s)
| | | | - Gerrit A. Luinstra
- Institut für Technische und Makromolekulare Chemie, Universität Hamburg, 20146 Hamburg, Germany; (Y.L.); (W.P.)
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Karvinen J, Kellomäki M. Characterization of self-healing hydrogels for biomedical applications. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Copper Ions Absorbed on Acrylic-Acid-Grafted Polystyrene Enable Direct Bonding with Tunable Bonding Strength and Debonding on Demand. Polymers (Basel) 2022; 14:polym14235142. [PMID: 36501536 PMCID: PMC9739571 DOI: 10.3390/polym14235142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/21/2022] [Accepted: 11/21/2022] [Indexed: 11/30/2022] Open
Abstract
Recycling adhesively bonded polymers is inconvenient due to its expensive separation and removal of adhesive residues. To tackle this problem, adhesive technologies are needed allowing debonding on demand and which do not contaminate the surface of the substrate. Direct bonding enabled by oxygen plasma treatment has already achieved substantial adhesion between flat substrates. However, debonding takes place by water, thus limiting the applications of this technology to water-free environments. The work presented in the following shows that this drawback can be overcome by grafting acrylic acid and adding copper(II) ions on the surface of polystyrene. In this process, the number of functional groups on the surface was significantly increased without increasing the surface roughness. The bonding strength between the substrates could be increased, and the process temperature could be lowered. Nevertheless, the samples could be debonded by exposure to EDTA solution under ultrasound. Hence, by combining acrylic acid grafting, variations in the bonding temperatures and the use of copper(II) ions, the bonding strength (5 N to >85 N) and the debonding time under the action of water can be tuned over large ranges (seconds to complete resistance).
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Song X, Guo J, Liu Y, Li F, Yang Q, Guan F, Di C. Preparation and characterization of multi-network hydrogels based on sodium alginate/krill protein/polyacrylamide-Strength, shape memory, conductivity and biocompatibility. Int J Biol Macromol 2022; 207:140-151. [PMID: 35257727 DOI: 10.1016/j.ijbiomac.2022.03.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/17/2022] [Accepted: 03/03/2022] [Indexed: 11/18/2022]
Abstract
Sodium alginate/krill protein/polyacrylamide (SA/AKP/PAM) hydrogel with "covalent bond-ion complex-hydrogen bond" multi-network structure was prepared by covalent cross-linking and complexion ion crosslinking using SA, AKP, and acrylamide (AM) as raw materials. The effects of ion species (Fe3+, Ba2+, Sr2+, Ca2+, and Zn2+) on the structure, morphology, and properties of multi-network hydrogels were studied in detail. The results showed that the mechanical strength of ionic cross-linked hydrogels increased significantly. The compressive strength of Fe3+ cross-linked hydrogels was 5.56 MPa, 16.13 times that of non-ionic crosslinked hydrogels. The results of ionic conductivity measurements showed that hydrogels had significant ionic conductivity and were sensitive to external forces. Interestingly, the hydrogel can be used as a capacitive pen in mobile phone writing, painting and dialing numbers. Moreover, ionic cross-linked hydrogels had a unique three-dimensional porous structure with gradient distribution, excellent shape memory effect, and good biocompatibility. Fe3+, Ba2+, Sr2+, and Ca2+ cross-linked hydrogels were nontoxic and conducive to the adhesion and growth of Schwann cells. These excellent properties of ionic cross-linked SA/AKP/PAM hydrogels have broad applications prospects in flexible electronic devices, sensors, soft electronic skins, and tissue engineering.
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Affiliation(s)
- Xuecui Song
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, PR China
| | - Jing Guo
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, PR China; Liaoning Engineering Technology Research Centre of Function Fiber and its Composites, Dalian 116034, PR China.
| | - Yuanfa Liu
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, PR China
| | - Feng Li
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, PR China
| | - Qiang Yang
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, PR China
| | - Fucheng Guan
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, PR China.
| | - Chunqiu Di
- School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034, PR China
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Shahriari MH, Hadjizadeh A, Abdouss M. Advances in self-healing hydrogels to repair tissue defects. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04133-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Wanasinghe SV, De Alwis Watuthanthrige N, Konkolewicz D. Interpenetrated triple network polymers: synergies of three different dynamic bonds. Polym Chem 2022. [DOI: 10.1039/d2py00575a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Triply interpenetrated networks were made with a unique dynamic linker in each network. The linkers were hydrogen bonds, boronic esters and Diels–Alder adducts. Triply dynamic materials had superior properties compared to doubly dynamic analogues.
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Affiliation(s)
| | | | - Dominik Konkolewicz
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH, 45056, USA
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Zhou HR, Huang J, Chen M, Li Y, Yuan M, Yang H. Effect of metal ions with reducing properties on hydrogels containing catechol groups. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127657] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Abstract
Hydrogels have three-dimensional network structures, high water content, good flexibility, biocompatibility, and stimulation response, which have provided a unique role in many fields such as industry, agriculture, and medical treatment. Poly(vinyl alcohol) PVA hydrogel is one of the oldest composite hydrogels. It has been extensively explored due to its chemical stability, nontoxic, good biocompatibility, biological aging resistance, high water-absorbing capacity, and easy processing. PVA-based hydrogels have been widely investigated in drug carriers, articular cartilage, wound dressings, tissue engineering, and other intelligent materials, such as self-healing and shape-memory materials, supercapacitors, sensors, and other fields. In this paper, the discovery, development, preparation, modification methods, and applications of PVA functionalized hydrogels are reviewed, and their potential applications and future research trends are also prospected.
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Highly sensitive self-healable strain biosensors based on robust transparent conductive nanocellulose nanocomposites: Relationship between percolated network and sensing mechanism. Biosens Bioelectron 2021; 191:113467. [PMID: 34218176 DOI: 10.1016/j.bios.2021.113467] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 06/21/2021] [Accepted: 06/25/2021] [Indexed: 12/31/2022]
Abstract
The conventional skin sensor detection of human physiological signals can be an effective method for disease diagnosis and health monitoring, but the poor biocompatibility, low sensitivity and complex design largely limit their applications. Developing natural nanofiller-reinforced composites as strain biosensors is an appealing solution to reduce environmental impacts and overcome technical bottleneck. Herein, a versatile nature skin-inspired composite film as flexible strain biosensor was developed based on cellulose nanocrystals-polyaniline (CNC-PANI) composites by utilizing their percolated conductive network in polyvinyl alcohol (PVA) matrix. The composite electronic skin showed robust mechanical strength (50.62 MPa) and high sensitivity (Gauge Factor = 11.467) with easy water-induced self-healing abilities. Moreover, we investigated the functioning mechanism of percolated network and the sensory behavior determined by CNC nanocomposite alignment. The percolation threshold of CNC-polyaniline (PANI) was determined at 4.278% and 5% CNC-PANI composite film shows the best overall sensing property. It was also discovered that the sensitivity of this type of conductive-filler electronic skin can be divided into two separate regions at different strain range due to its percolated network. With films prepared by dry casting and dip coating, the alignment of CNC-PANI also contributes to this unique change in electrical property. Generally, our results demonstrated the mechanism and tunability of conductive nanofiller-based composite strain biosensors as a potential alternative to commercial synthetic sensors.
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Jiao Y, Lu Y, Lu K, Yue Y, Xu X, Xiao H, Li J, Han J. Highly stretchable and self-healing cellulose nanofiber-mediated conductive hydrogel towards strain sensing application. J Colloid Interface Sci 2021; 597:171-181. [PMID: 33866209 DOI: 10.1016/j.jcis.2021.04.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/08/2021] [Accepted: 04/01/2021] [Indexed: 12/12/2022]
Abstract
HYPOTHESIS Hydrogel-based sensors have attracted considerable attention due to potential opportunities in human health monitoring when both mechanical flexibility and sensing ability are required. Therefore, the integration of excellent mechanical properties, electrical conductivity and self-healing properties into hydrogels may improve the application range and durability of hydrogel-based sensors. EXPERIMENTS A novel composite hydrogel composed of polyaniline (PANI), polyacrylic acid (PAA) and 2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO)-oxidized cellulose nanofibrils (TOCNFs) was designed. The viscoelastic, mechanical, conductive, self-healing and sensing properties of hydrogels were studied. FINDINGS The TOCNF/PANI/PAA hydrogel exhibits a fracture strain of 982%, tensile strength of 74.98 kPa and electrical conductivity of 3.95 S m-1, as well as good mechanical and electrical self-healing properties within 6 h at ambient temperature without applying any stimuli. Furthermore, owing to the high sensitivity of the TOCNF/PANI/PAA-0.6 hydrogel-based strain sensor (gauge factor, GF = 8.0), the sensor can accurately and rapidly detect large-scale motion and subtle localized activity. The proposed composite hydrogel is as a promising material for use as soft wearable sensors for health monitoring and smart robotics applications.
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Affiliation(s)
- Yue Jiao
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Ya Lu
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Kaiyue Lu
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yiying Yue
- Biology and Environment College, Nanjing Forestry University, Nanjing 210037, China
| | - Xinwu Xu
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Huining Xiao
- Chemical Engineering Department, New Brunswick University, Fredericton, New Brunswick E3B 5A3, Canada
| | - Jian Li
- Material Science and Engineering College, Northeast Forestry University, Harbin 150040, China
| | - Jingquan Han
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China; Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China.
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12
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Facile preparation of agar/polyvinyl alcohol-based triple-network composite hydrogels with excellent mechanical performances. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126270] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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13
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Wang T, Ren X, Bai Y, Liu L, Wu G. Adhesive and tough hydrogels promoted by quaternary chitosan for strain sensor. Carbohydr Polym 2021; 254:117298. [DOI: 10.1016/j.carbpol.2020.117298] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 10/09/2020] [Accepted: 10/19/2020] [Indexed: 12/11/2022]
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Zheng C, Lu K, Lu Y, Zhu S, Yue Y, Xu X, Mei C, Xiao H, Wu Q, Han J. A stretchable, self-healing conductive hydrogels based on nanocellulose supported graphene towards wearable monitoring of human motion. Carbohydr Polym 2020; 250:116905. [DOI: 10.1016/j.carbpol.2020.116905] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 07/09/2020] [Accepted: 08/04/2020] [Indexed: 12/22/2022]
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Gu J, Huang J, Chen G, Hou L, Zhang J, Zhang X, Yang X, Guan L, Jiang X, Liu H. Multifunctional Poly(vinyl alcohol) Nanocomposite Organohydrogel for Flexible Strain and Temperature Sensor. ACS APPLIED MATERIALS & INTERFACES 2020; 12:40815-40827. [PMID: 32794689 DOI: 10.1021/acsami.0c12176] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hydrogels are important for stretchable and wearable multifunctional sensors, but their application is limited by their low mechanical strength and poor long-term stability. Herein, a conductive organohydrogel with a 3D honeycomb structure was prepared by integrating carbon nanotubes (CNTs) and carbon black (CB) into a poly(vinyl alcohol)/glycerol (PVA/Gly) organohydrogel. Such a nanocomposite organohydrogel is built on a physical cross-linking network formed by the hydrogen bonds among PVA, glycerol, and water. CNTs and CB had an add-in synergistic impact on the mechanical and electrical performances of the PVA/Gly organohydrogel because of the distinct aspect ratios and geometric shapes. The prepared organohydrogel integrated with a tensile strength of 4.8 MPa, a toughness of 15.93 MJ m-3, and flexibility with an elongation at break up to 640%. The organohydrogels also showed good antifreezing feature, long-term moisture retention, self-healing, and thermoplasticity. Sensors designed from these organohydrogels displayed high stretching sensitivity to tensile strain and temperature, with a gauge factor of 2.1 within a relatively broad strain range (up to ∼600% strain), a temperature coefficient of resistance of -0.935%·°C-1, and long-term durability. The sensors could detect full-range human physiological signals and respond to the change in temperature, which are highly desired for multifunctional wearable electronic devices.
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Affiliation(s)
- Jianfeng Gu
- School of Chemical Engineering, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Jianren Huang
- School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, People's Republic of China
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People's Republic of China
| | - Guoqi Chen
- School of Chemical Engineering, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Linxi Hou
- School of Chemical Engineering, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Jin Zhang
- School of Chemical Engineering, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Xi Zhang
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People's Republic of China
| | - Xiaoxiang Yang
- School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Lunhui Guan
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, People's Republic of China
| | - Xiancai Jiang
- School of Chemical Engineering, Fuzhou University, Fuzhou 350108, People's Republic of China
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People's Republic of China
| | - Huiyong Liu
- School of Chemical Engineering, Fuzhou University, Fuzhou 350108, People's Republic of China
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Sarkar N, Sahoo G, Swain SK. Nanoclay sandwiched reduced graphene oxide filled macroporous polyacrylamide-agar hybrid hydrogel as an adsorbent for dye decontamination. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.nanoso.2020.100507] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Wang M, Zhuge J, Li C, Jiang L, Yang H. Self-healing quadruple shape memory hydrogels based on coordination, borate bonds and temperature with tunable mechanical properties. IRANIAN POLYMER JOURNAL 2020. [DOI: 10.1007/s13726-020-00821-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Wu G, Jin K, Liu L, Zhang H. A rapid self-healing hydrogel based on PVA and sodium alginate with conductive and cold-resistant properties. SOFT MATTER 2020; 16:3319-3324. [PMID: 32187247 DOI: 10.1039/c9sm02455g] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Self-healing hydrogels as renewable materials have attracted significant attention recently. However, traditional self-healing hydrogels require a long time for self-healing and cannot be used at low temperatures. Besides, their poor biocompatibility limits the application of hydrogels. Herein, we have prepared a hydrogel composed of polyvinyl alcohol (PVA) and modified sodium alginate. Due to the dynamic recombination of borate bonds, these hydrogels show a strong self-healing ability, with the shortest self-healing time up to 15 seconds. Also, glycerin (GI) was added into the hydrogel to increase the cold resistance of the hydrogel. At -25 °C, the hydrogel still displayed good frost resistance and elasticity. NaCl and other inorganic salts were added to endow the hydrogel with good electrical conductivity. The hydrogel also had good skin-like properties and could activate the capacitive screen of an electronic device.
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Affiliation(s)
- Guangfeng Wu
- School of Chemical Engineering, Changchun University of Technology, Changchun University of Technology, Changchun 130012, Jilin, China. and Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, and Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, Jilin, China
| | - Kaiyun Jin
- School of Chemical Engineering, Changchun University of Technology, Changchun University of Technology, Changchun 130012, Jilin, China. and Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, and Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, Jilin, China
| | - Li Liu
- School of Chemical Engineering, Changchun University of Technology, Changchun University of Technology, Changchun 130012, Jilin, China. and Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, and Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, Jilin, China
| | - Huixuan Zhang
- School of Chemical Engineering, Changchun University of Technology, Changchun University of Technology, Changchun 130012, Jilin, China. and Engineering Research Center of Synthetic Resin and Special Fiber, Ministry of Education, and Advanced Institute of Materials Science, Changchun University of Technology, Changchun 130012, Jilin, China
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Facile preparation and characterization of super tough chitosan/poly(vinyl alcohol) hydrogel with low temperature resistance and anti-swelling property. Int J Biol Macromol 2020; 142:574-582. [DOI: 10.1016/j.ijbiomac.2019.09.132] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 09/14/2019] [Accepted: 09/29/2019] [Indexed: 12/11/2022]
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Khoury LR, Popa I. Chemical unfolding of protein domains induces shape change in programmed protein hydrogels. Nat Commun 2019; 10:5439. [PMID: 31784506 PMCID: PMC6884551 DOI: 10.1038/s41467-019-13312-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Accepted: 10/30/2019] [Indexed: 12/31/2022] Open
Abstract
Programmable behavior combined with tailored stiffness and tunable biomechanical response are key requirements for developing successful materials. However, these properties are still an elusive goal for protein-based biomaterials. Here, we use protein-polymer interactions to manipulate the stiffness of protein-based hydrogels made from bovine serum albumin (BSA) by using polyelectrolytes such as polyethyleneimine (PEI) and poly-L-lysine (PLL) at various concentrations. This approach confers protein-hydrogels with tunable wide-range stiffness, from ~10-64 kPa, without affecting the protein mechanics and nanostructure. We use the 6-fold increase in stiffness induced by PEI to program BSA hydrogels in various shapes. By utilizing the characteristic protein unfolding we can induce reversible shape-memory behavior of these composite materials using chemical denaturing solutions. The approach demonstrated here, based on protein engineering and polymer reinforcing, may enable the development and investigation of smart biomaterials and extend protein hydrogel capabilities beyond their conventional applications.
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Affiliation(s)
- Luai R Khoury
- Department of Physics, University of Wisconsin-Milwaukee, 3135 North Maryland Ave., Milwaukee, WI, 53211, USA.
| | - Ionel Popa
- Department of Physics, University of Wisconsin-Milwaukee, 3135 North Maryland Ave., Milwaukee, WI, 53211, USA.
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22
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Zhao P, Gao X, Lu C, Wang X, He Y, Yao D. Fabricating a partial wetting structure for improving the toughness of intumescent flame‐retardant HDPE. J Appl Polym Sci 2019. [DOI: 10.1002/app.48735] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Pan Zhao
- Chemical Engineering and Pharmaceutics SchoolHenan University of Science and Technology Luoyang 471023 China
| | - Xiping Gao
- Chemical Engineering and Pharmaceutics SchoolHenan University of Science and Technology Luoyang 471023 China
- Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and DevicesEast China University of Technology Nanchang 330013 China
| | - Chang Lu
- Chemical Engineering and Pharmaceutics SchoolHenan University of Science and Technology Luoyang 471023 China
| | - Xiao Wang
- Chemical Engineering and Pharmaceutics SchoolHenan University of Science and Technology Luoyang 471023 China
| | - Yuxin He
- Chemical Engineering and Pharmaceutics SchoolHenan University of Science and Technology Luoyang 471023 China
| | - Dahu Yao
- Chemical Engineering and Pharmaceutics SchoolHenan University of Science and Technology Luoyang 471023 China
- Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and DevicesEast China University of Technology Nanchang 330013 China
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23
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Hou K, Hu Z, Mugaanire IT, Li C, Chen G, Zhu M. Fiber forming mechanism and reaction kinetics of novel dynamic-crosslinking-spinning for Poly(ethylene glycol) diacrylate fiber fabrication. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121903] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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24
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Li X, Qin H, Zhang X, Guo Z. Triple-network hydrogels with high strength, low friction and self-healing by chemical-physical crosslinking. J Colloid Interface Sci 2019; 556:549-556. [DOI: 10.1016/j.jcis.2019.08.100] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/25/2019] [Accepted: 08/26/2019] [Indexed: 12/31/2022]
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25
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Xiang Y, Li B, Zhang Y, Ma S, Li B, Gao H, Yu B, Li J, Zhou F. Reversely Orthogonal Actuation of a Janus-Faced Film Based on Asymmetric Polymer Brush Modification. ACS APPLIED MATERIALS & INTERFACES 2019; 11:36073-36080. [PMID: 31486632 DOI: 10.1021/acsami.9b10885] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The actuation phenomena of materials upon external stimulus have attracted much attention for the development of excellent sensors and devices. Herein, we present a smart Janus-faced film that exhibits novel behavior of reverse orthogonal actuation under high humidity and a positive actuation under low humidity, which is achieved by asymmetric polymer brushes on polydimethysiloxane as a substrate through surface-initiated atom transfer radical polymerization. The classical theory of plates and shells and finite element simulations are also applied to understand the orthogonal actuation mechanism of the actuator. This Janus-faced film can reversely grab objects rapidly under high humidity, which provides significant potential to design a more intelligent actuator. In addition, this film is highly sensitive to humidity that even the approaching finger can make it to bend, which is just like the actuation behavior of Mimosa pudica. Based on the above phenomena, we also design the sensing devices to realize the detection of humidity. Interestingly, the film intelligently identifies different solvents (e.g., water and ethanol). This work may demonstrate significant potential in smart surface modifications, flexible robots, bionic sensors, and other fields.
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Affiliation(s)
- Yangyang Xiang
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering , Northwest Normal University , Lanzhou 730070 , China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics , Chinese Academy of Sciences , Lanzhou 730000 , China
| | - Bianhong Li
- School of Mechatronical Engineering , Beijing Institute of Technology , Beijing 100081 , China
| | - Yunlei Zhang
- University of Chinese Academy of Sciences , Beijing 100039 , China
| | - Shuanhong Ma
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics , Chinese Academy of Sciences , Lanzhou 730000 , China
| | - Bin Li
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics , Chinese Academy of Sciences , Lanzhou 730000 , China
| | - Hanjun Gao
- School of Mechanical Engineering and Automation , Beihang University , Beijing 100191 , China
| | - Bo Yu
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics , Chinese Academy of Sciences , Lanzhou 730000 , China
| | - Jian Li
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering , Northwest Normal University , Lanzhou 730070 , China
| | - Feng Zhou
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics , Chinese Academy of Sciences , Lanzhou 730000 , China
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26
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Wang Y, Wu J, Cao Z, Ma C, Tong Q, Li J, Liu H, Zheng J, Huang G. Mechanically robust, notch-insensitive, fatigue resistant and self-recoverable hydrogels with homogeneous and viscoelastic network constructed by a novel multifunctional cross-linker. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121661] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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27
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Salimi S, Hart L, Feula A, Hermida-Merino D, Touré A, Kabova E, Ruiz-Cantu L, Irvine D, Wildman R, Shankland K, Hayes W. Property enhancement of healable supramolecular polyurethanes. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.05.042] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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28
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Jing Z, Zhang Q, Liang Y, Zhang Z, Hong P, Li Y. Synthesis of poly(acrylic acid)–Fe
3+
/gelatin/poly(vinyl alcohol) triple‐network supramolecular hydrogels with high toughness, high strength and self‐healing properties. POLYM INT 2019. [DOI: 10.1002/pi.5876] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Zhanxin Jing
- College of Chemistry and EnvironmentGuangdong Ocean University Zhanjiang People's Republic of China
| | - Qiangshan Zhang
- College of Chemistry and EnvironmentGuangdong Ocean University Zhanjiang People's Republic of China
| | - Yan‐Qiu Liang
- College of Chemistry and EnvironmentGuangdong Ocean University Zhanjiang People's Republic of China
| | - Zhaoxia Zhang
- College of Chemistry and EnvironmentGuangdong Ocean University Zhanjiang People's Republic of China
| | - Pengzhi Hong
- College of Chemistry and EnvironmentGuangdong Ocean University Zhanjiang People's Republic of China
| | - Yong Li
- College of Chemistry and EnvironmentGuangdong Ocean University Zhanjiang People's Republic of China
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29
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Li S, Bu X, Wu L, Ma X, Diao W, Zhuang Z, Zhou Y. Tough and recoverable triple‐network hydrogels based on multiple pairs of toughing mechanisms with excellent ionic conductivity as stable strain sensors. POLYM ENG SCI 2019. [DOI: 10.1002/pen.25164] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Shuai Li
- College of Materials Science and Engineering, Nanjing Tech University Nanjing 210009 People's Republic of China
| | - Ximan Bu
- College of Materials Science and Engineering, Nanjing Tech University Nanjing 210009 People's Republic of China
| | - Linlin Wu
- College of Materials Science and Engineering, Nanjing Tech University Nanjing 210009 People's Republic of China
| | - Xiaofeng Ma
- College of Science, Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Wenjing Diao
- College of Materials Science and Engineering, Nanjing Tech University Nanjing 210009 People's Republic of China
| | - Zhenzhen Zhuang
- College of Materials Science and Engineering, Nanjing Tech University Nanjing 210009 People's Republic of China
| | - Yongmin Zhou
- College of Materials Science and Engineering, Nanjing Tech University Nanjing 210009 People's Republic of China
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30
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Jing Z, Xu A, Liang YQ, Zhang Z, Yu C, Hong P, Li Y. Biodegradable Poly(acrylic acid- co-acrylamide)/Poly(vinyl alcohol) Double Network Hydrogels with Tunable Mechanics and High Self-healing Performance. Polymers (Basel) 2019; 11:E952. [PMID: 31159410 PMCID: PMC6631433 DOI: 10.3390/polym11060952] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 05/12/2019] [Accepted: 05/12/2019] [Indexed: 02/04/2023] Open
Abstract
We proposed a novel strategy in the fabrication of biodegradable poly(acrylic acid-co-acrylamide)/poly(vinyl alcohol) (P(AAc-co-Am)/PVA) double network (DN) hydrogels with good mechanical and self-healing properties. In the DN hydrogel system, P(AAc-co-Am) polymers form a network through the ionic coordinates between -COO- and Fe3+ and hydrogen bonding between -COOH and -CONH2, while another network is fabricated by the complexation between PVA and borax. The influences of the composition on the rheological behaviors and mechanical properties of the synthesized DN hydrogels were investigated. The rheological measurements revealed that the viscoelasticity and stiffness of the P(AAc-co-Am)/PVA DN hydrogels increase as the acrylamide and Fe3+ concentrations increase. At 0.05 mmol of Fe3+ and 50% of acrylamide, tensile strength and elongation at break of P(AAc-co-Am)/PVA DN hydrogels could reach 329.5 KPa and 12.9 mm/mm, respectively. These properties arise from the dynamic reversible bonds existed in the P(AAc-co-Am)/PVA DN hydrogels. These reversible bonds also give good self-healing properties, and the maximum self-healing efficiency of P(AAc-co-Am)/PVA DN hydrogels is up to 96.4%. The degradation test of synthesized DN hydrogels was also conducted under simulated physiological conditions and the weight loss could reach 74% in the simulated intestinal fluid. According to the results presented here, the synthesized P(AAc-co-Am)/PVA DN hydrogels have a potential application prospect in various biomedical fields.
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Affiliation(s)
- Zhanxin Jing
- College of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, Guangdong, China.
| | - Aixing Xu
- College of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, Guangdong, China.
| | - Yan-Qiu Liang
- College of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, Guangdong, China.
| | - Zhaoxia Zhang
- College of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, Guangdong, China.
| | - Chuanming Yu
- College of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, Guangdong, China.
| | - Pengzhi Hong
- College of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, Guangdong, China.
| | - Yong Li
- College of Chemistry and Environment, Guangdong Ocean University, Zhanjiang 524088, Guangdong, China.
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31
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Li F, Ye Q, Gao Q, Chen H, Shi SQ, Zhou W, Li X, Xia C, Li J. Facile Fabrication of Self-Healable and Antibacterial Soy Protein-Based Films with High Mechanical Strength. ACS APPLIED MATERIALS & INTERFACES 2019; 11:16107-16116. [PMID: 30964267 DOI: 10.1021/acsami.9b03725] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Soy protein isolate (SPI), a ubiquitous and readily available biopolymer, has drawn increasing attention because of its sustainability, abundance, and low price. However, the poor mechanical properties, tedious performance adjustments, irreversible damage, and weak microorganism resistance have limited its applications. In this study, a facile but delicate strategy is proposed to fabricate an excellently self-healable and remarkably antibacterial SPI-based material with high mechanical strength by integrating polyethyleneimine (PEI) and metal ions (Cu(II) or Zn(II)). The tensile strengths of the SPI/PEI-Cu-0.750 and SPI/PEI-Zn-0.750 films reach up to 10.46 ± 0.50 and 9.06 ± 0.62 MPa, which is 367.06 and 306.28% strength increase compared to that of neat SPI film, respectively. Due to abundant non-covalent bonds and low glass transition temperature of the network, both SPI/PEI-Cu and SPI/PEI-Zn films exhibit a satisfactory self-healing behavior even at room temperature. Furthermore, SPI/PEI-Cu and SPI/PEI-Zn films demonstrate high bacterial resistance against Escherichia coli and Staphylococcus aureus. This facile strategy of establishing dynamic networks in a biomaterial with numerous excellent properties will enormously expand the scope of its applications, especially in the field of recyclable and durable materials.
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Affiliation(s)
- Feng Li
- MOE Key Laboratory of Wooden Material Science and Application & Beijing Key Laboratory of Wood Science and Engineering , Beijing Forestry University , Beijing 100083 , China
| | - Qianqian Ye
- MOE Key Laboratory of Wooden Material Science and Application & Beijing Key Laboratory of Wood Science and Engineering , Beijing Forestry University , Beijing 100083 , China
| | - Qiang Gao
- MOE Key Laboratory of Wooden Material Science and Application & Beijing Key Laboratory of Wood Science and Engineering , Beijing Forestry University , Beijing 100083 , China
| | - Hui Chen
- MOE Key Laboratory of Wooden Material Science and Application & Beijing Key Laboratory of Wood Science and Engineering , Beijing Forestry University , Beijing 100083 , China
| | - Sheldon Q Shi
- Department of Mechanical and Energy Engineering , University of North Texas , Denton , Texas 76203 , United States
| | - Wenrui Zhou
- MOE Key Laboratory of Wooden Material Science and Application & Beijing Key Laboratory of Wood Science and Engineering , Beijing Forestry University , Beijing 100083 , China
| | - Xiaona Li
- College of Materials Science and Engineering , Nanjing Forestry University , Nanjing 210037 , China
| | - Changlei Xia
- Department of Mechanical and Energy Engineering , University of North Texas , Denton , Texas 76203 , United States
| | - Jianzhang Li
- MOE Key Laboratory of Wooden Material Science and Application & Beijing Key Laboratory of Wood Science and Engineering , Beijing Forestry University , Beijing 100083 , China
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32
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Qin Y, Wang J, Qiu C, Xu X, Jin Z. A Dual Cross-Linked Strategy to Construct Moldable Hydrogels with High Stretchability, Good Self-Recovery, and Self-Healing Capability. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:3966-3980. [PMID: 30888158 DOI: 10.1021/acs.jafc.8b05147] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Most conventional synthetic hydrogels suffer from poor mechanical properties; despite recent significant progress in fabricating tough hydrogels, it is still a challenge to simultaneously realize high stretchability, self-recovery, and self-healing capability in a hydrogel. In this work, a new type of starch/PVA/borax hybrid dual cross-linked (DC) hydrogel was synthesized by a one-pot method. The as-prepared DC hydrogels exhibited mechanical properties of remarkable extensibility (ca. 2485%), excellent toughness (ca. 290.5 kJ m-3), high compression strength (ca. 547.8 kPa), rapid recoverability (81.9% energy recovery after 30 min), and free-shapeable behavior. More impressively, the DC gels sustained approximately 300 times their own weight and exhibited an outstanding self-healing capability at room temperature both in air and underwater. Furthermore, the adsorption amount of methylene blue onto the anionic DC gel (144.68 mg/g) was much higher than that of corn starch gel. Consequently, the eco-friendly, stable, and biodegradable hydrogels will have a great potential application in removing anionic dyes from the wastewater produced by agriculture and industry.
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33
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Li X, Zhang Y, Yang Q, Li D, Zhang G, Long S. Agar/PAAc-Fe3+ hydrogels with pH-sensitivity and high toughness using dual physical cross-linking. IRANIAN POLYMER JOURNAL 2018. [DOI: 10.1007/s13726-018-0657-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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34
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Peng S, Liu S, Sun Y, Xiang N, Jiang X, Hou L. Facile preparation and characterization of poly(vinyl alcohol)-NaCl-glycerol supramolecular hydrogel electrolyte. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.07.024] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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35
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Zhuang Z, Wu L, Ma X, Diao W, Fang Y. High-strength, tough, rapidly self-recoverable, and fatigue-resistant hydrogels based on multi-network and multi-bond toughening mechanism. J Appl Polym Sci 2018. [DOI: 10.1002/app.46847] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Zhenzhen Zhuang
- College of Materials Science and Engineering, Nanjing Tech University; Nanjing 210009 China
| | - Linlin Wu
- College of Materials Science and Engineering, Nanjing Tech University; Nanjing 210009 China
| | - Xiaofeng Ma
- College of Science, Nanjing Forestry University; Nanjing 210037 China
| | - Wenjing Diao
- College of Materials Science and Engineering, Nanjing Tech University; Nanjing 210009 China
| | - Ying Fang
- College of Materials Science and Engineering, Nanjing Tech University; Nanjing 210009 China
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