151
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Gao Z, Sui J, Xie X, Li X, Song S, Zhang H, Hu Y, Hong Y, Wang X, Cui J, Hao J. Metal-organic gels of simple chemicals and their high efficacy in removing arsenic(V) in water. AIChE J 2018. [DOI: 10.1002/aic.16344] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zhiliang Gao
- Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Aggregated Materials, Ministry of Education; Shandong University; Jinan 250100 People's Republic of China
| | - Jianfei Sui
- Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Aggregated Materials, Ministry of Education; Shandong University; Jinan 250100 People's Republic of China
| | - Xiaolin Xie
- Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Aggregated Materials, Ministry of Education; Shandong University; Jinan 250100 People's Republic of China
| | - Xiaoyu Li
- Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Aggregated Materials, Ministry of Education; Shandong University; Jinan 250100 People's Republic of China
| | - Shuo Song
- Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Aggregated Materials, Ministry of Education; Shandong University; Jinan 250100 People's Republic of China
| | - Hongshu Zhang
- Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Aggregated Materials, Ministry of Education; Shandong University; Jinan 250100 People's Republic of China
| | - Yuanyuan Hu
- Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Aggregated Materials, Ministry of Education; Shandong University; Jinan 250100 People's Republic of China
| | - Yue Hong
- Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Aggregated Materials, Ministry of Education; Shandong University; Jinan 250100 People's Republic of China
| | - Xiaolin Wang
- Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Aggregated Materials, Ministry of Education; Shandong University; Jinan 250100 People's Republic of China
| | - Jiwei Cui
- Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Aggregated Materials, Ministry of Education; Shandong University; Jinan 250100 People's Republic of China
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Aggregated Materials, Ministry of Education; Shandong University; Jinan 250100 People's Republic of China
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152
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Huang Y, Liu J, Wang J, Hu M, Mo F, Liang G, Zhi C. An Intrinsically Self-Healing NiCo||Zn Rechargeable Battery with a Self-Healable Ferric-Ion-Crosslinking Sodium Polyacrylate Hydrogel Electrolyte. Angew Chem Int Ed Engl 2018; 57:9810-9813. [DOI: 10.1002/anie.201805618] [Citation(s) in RCA: 122] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Yan Huang
- Centre of Flexible and Printable Electronics; Harbin Institute of Technology; Shenzhen 518055 China
- School of Materials Science and Engineering; Harbin Institute of Technology; Shenzhen 518055 China
- State Key Laboratory of Advanced Welding and Joining; Harbin Institute of Technology; Harbin 150001 China
| | - Jie Liu
- Centre of Flexible and Printable Electronics; Harbin Institute of Technology; Shenzhen 518055 China
- School of Materials Science and Engineering; Harbin Institute of Technology; Shenzhen 518055 China
| | - Jiaqi Wang
- Centre of Flexible and Printable Electronics; Harbin Institute of Technology; Shenzhen 518055 China
- School of Materials Science and Engineering; Harbin Institute of Technology; Shenzhen 518055 China
| | - Mengmeng Hu
- Centre of Flexible and Printable Electronics; Harbin Institute of Technology; Shenzhen 518055 China
- School of Materials Science and Engineering; Harbin Institute of Technology; Shenzhen 518055 China
| | - Funian Mo
- Department of Materials Science and Engineering; City University of Hong Kong; 83 Dachi Road Kowloon Hong Kong SAR China
| | - Guojin Liang
- Department of Materials Science and Engineering; City University of Hong Kong; 83 Dachi Road Kowloon Hong Kong SAR China
| | - Chunyi Zhi
- Department of Materials Science and Engineering; City University of Hong Kong; 83 Dachi Road Kowloon Hong Kong SAR China
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153
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Huang Y, Liu J, Wang J, Hu M, Mo F, Liang G, Zhi C. An Intrinsically Self-Healing NiCo||Zn Rechargeable Battery with a Self-Healable Ferric-Ion-Crosslinking Sodium Polyacrylate Hydrogel Electrolyte. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805618] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yan Huang
- Centre of Flexible and Printable Electronics; Harbin Institute of Technology; Shenzhen 518055 China
- School of Materials Science and Engineering; Harbin Institute of Technology; Shenzhen 518055 China
- State Key Laboratory of Advanced Welding and Joining; Harbin Institute of Technology; Harbin 150001 China
| | - Jie Liu
- Centre of Flexible and Printable Electronics; Harbin Institute of Technology; Shenzhen 518055 China
- School of Materials Science and Engineering; Harbin Institute of Technology; Shenzhen 518055 China
| | - Jiaqi Wang
- Centre of Flexible and Printable Electronics; Harbin Institute of Technology; Shenzhen 518055 China
- School of Materials Science and Engineering; Harbin Institute of Technology; Shenzhen 518055 China
| | - Mengmeng Hu
- Centre of Flexible and Printable Electronics; Harbin Institute of Technology; Shenzhen 518055 China
- School of Materials Science and Engineering; Harbin Institute of Technology; Shenzhen 518055 China
| | - Funian Mo
- Department of Materials Science and Engineering; City University of Hong Kong; 83 Dachi Road Kowloon Hong Kong SAR China
| | - Guojin Liang
- Department of Materials Science and Engineering; City University of Hong Kong; 83 Dachi Road Kowloon Hong Kong SAR China
| | - Chunyi Zhi
- Department of Materials Science and Engineering; City University of Hong Kong; 83 Dachi Road Kowloon Hong Kong SAR China
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154
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Wang S, Guo G, Lu X, Ji S, Tan G, Gao L. Facile Soaking Strategy Toward Simultaneously Enhanced Conductivity and Toughness of Self-Healing Composite Hydrogels Through Constructing Multiple Noncovalent Interactions. ACS APPLIED MATERIALS & INTERFACES 2018; 10:19133-19142. [PMID: 29756768 DOI: 10.1021/acsami.8b04999] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Tough and stretchable conductive hydrogels are desirable for the emerging field of wearable and implanted electronics. Unfortunately, most existing conductive hydrogels have low mechanical strength. Current strategies to enhance mechanical properties include employing tough host gel matrices or introducing specific interaction between conductive polymer and host gel matrices. However, these strategies often involve additional complicated processes. Here, a simple yet effective soaking treatment is employed to concurrently enhance mechanical and conductive properties, both of which can be facilely tailored by controlling the soaking duration. The significant improvements are correlated with co-occurring mechanism of deswelling and multiple noncovalent interactions. The resulting optimal sample exhibits attractive combination of high water content (75 wt %), high tensile stress (∼2.5 MPa), large elongation (>600%), reasonable conductivity (∼25 mS/cm), and fast self-healing property with the aid of hot water. The potential application of gel as a strain sensor is demonstrated. The applicability of this method is not limited to conductive hydrogels alone but can also be extended to strengthen other functional hydrogels with weak mechanical properties.
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Affiliation(s)
- Shuting Wang
- School of Chemical Engineering and Light Industry , Guangdong University of Technology , Guangzhou 510006 , China
| | - Guoqiang Guo
- School of Chemical Engineering and Light Industry , Guangdong University of Technology , Guangzhou 510006 , China
| | - Xiaoxuan Lu
- School of Chemical Engineering and Light Industry , Guangdong University of Technology , Guangzhou 510006 , China
| | - Shaomin Ji
- School of Chemical Engineering and Light Industry , Guangdong University of Technology , Guangzhou 510006 , China
| | - Guoxin Tan
- School of Chemical Engineering and Light Industry , Guangdong University of Technology , Guangzhou 510006 , China
| | - Liang Gao
- School of Chemical Engineering and Light Industry , Guangdong University of Technology , Guangzhou 510006 , China
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155
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Tan YJ, Wu J, Li H, Tee BCK. Self-Healing Electronic Materials for a Smart and Sustainable Future. ACS APPLIED MATERIALS & INTERFACES 2018; 10:15331-15345. [PMID: 29668251 DOI: 10.1021/acsami.7b19511] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The survivability of living organisms relies critically on their ability to self-heal from damage in unpredictable situations and environmental variability. Such abilities are most important in external facing organs such as the mammalian skin. However, the properties of bulk elemental materials are typically unable to perform self-repair. Consequently, most conventional smart electronic devices today are not designed to repair themselves when damaged. Thus, inspired by the remarkable capability of self-healing in natural systems, smart self-healing materials are being intensively researched to mimic natural systems to have the ability to partially or completely self-repair damages inflicted on them. This exciting area of research could potentially power a sustainable and smart future.
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Affiliation(s)
- Yu Jun Tan
- Biomedical Institute for Global Health and Research (BIGHEART) , National University of Singapore , 119077 Singapore
| | - Jiake Wu
- Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , P. R. China
| | - Hanying Li
- Department of Polymer Science and Engineering , Zhejiang University , Hangzhou 310027 , P. R. China
| | - Benjamin C K Tee
- Biomedical Institute for Global Health and Research (BIGHEART) , National University of Singapore , 119077 Singapore
- Materials Science and Engineering Department , National University of Singapore , 117575 Singapore
- Institute of Materials Research and Engineering , Agency for Science Technology and Research , 138632 Singapore
- Department of Electrical & Computer Engineering , National University of Singapore , 117583 Singapore
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156
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Christoff-Tempesta T, Lew AJ, Ortony JH. Beyond Covalent Crosslinks: Applications of Supramolecular Gels. Gels 2018; 4:E40. [PMID: 30674816 PMCID: PMC6209248 DOI: 10.3390/gels4020040] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 04/26/2018] [Accepted: 04/28/2018] [Indexed: 12/25/2022] Open
Abstract
Traditionally, gels have been defined by their covalently cross-linked polymer networks. Supramolecular gels challenge this framework by relying on non-covalent interactions for self-organization into hierarchical structures. This class of materials offers a variety of novel and exciting potential applications. This review draws together recent advances in supramolecular gels with an emphasis on their proposed uses as optoelectronic, energy, biomedical, and biological materials. Additional special topics reviewed include environmental remediation, participation in synthesis procedures, and other industrial uses. The examples presented here demonstrate unique benefits of supramolecular gels, including tunability, processability, and self-healing capability, enabling a new approach to solve engineering challenges.
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Affiliation(s)
- Ty Christoff-Tempesta
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
| | - Andrew J Lew
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
| | - Julia H Ortony
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
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157
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Suga S, Suzuki M, Hanabusa K. Development of New D,L-Methionine-based Gelators. J Oleo Sci 2018; 67:539-549. [PMID: 29710040 DOI: 10.5650/jos.ess17248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
D,L-Methionine was chosen as a starting material for the preparation of a new gelator N-10-undecenoyl-D,L-methionylaminooctadecane (DL-Met-R18). Three oligo (dimethylsiloxane)-containing gelators, DL-Met-R18/Si3, DL-Met-R18/Si7-8, and DL-Met-R18/Si14-15, were also prepared from DL-Met-R18 by hydrosilylation reactions. Their gelation abilities were evaluated on the basis of the minimum gel concentration using nine solvents. Compound DL-Met-R18 was able to gelate liquid paraffin and silicone oil, but it crystallized in most solvents. However, DL-Met-R18/Si7-8 resulted to be the best gelator, gelling eight solvents at low concentrations. The results of gelation tests demonstrated that the ability to form stable gels decreases in the following order: DL-Met-R18/Si7-8 ≈ DL-Met-R18/Si14-15 > DL-Met-R18/Si3 >> DL-Met-R18. The aspects and thermal stabilities of the gels were investigated using three-component mixtures of solvents composed of hexadecyl 2-ethylhexanoate, liquid paraffin, and decamethylcyclopentasiloxane (66 combinations). DL-Met-R18/Si3, DL-Met-R18/Si7-8, and DL-Met-R18/Si14-15 could form gels with all these mixed solvent combinations; particularly, DL-Met-R18/Si7-8 gave rise to transparent or translucent gels. FT-IR spectra suggested that the formation of hydrogen bonds between the NH and C=O groups of the amides is one of driving forces involved in the gelation process. Aggregates comprising three-dimensional networks were studied by transmission electron microscopy. Moreover, the viscoelastic behavior of the gels was investigated by rheology measurements.
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Affiliation(s)
- Shunichi Suga
- Faculty of Textile Science & Technology, Shinshu University
| | - Masahiro Suzuki
- Interdisciplinary Graduate School of Science & Technology, Shinshu University
| | - Kenji Hanabusa
- Interdisciplinary Graduate School of Science & Technology, Shinshu University.,Division of Frontier Fibers, Institute for Fiber Engineering, ICCER, Shinshu University
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158
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Liu S, Oderinde O, Hussain I, Yao F, Fu G. Dual ionic cross-linked double network hydrogel with self-healing, conductive, and force sensitive properties. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.01.046] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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159
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Dong P, Cui K, Xu F, Jiang T, Ma Z. Synthesis of new ionic crosslinked polymer hydrogel combining polystyrene and poly(4-vinyl pyridine) and its self-healing through a reshuffling reaction of the trithiocarbonate moiety under irradiation of ultraviolet light. POLYM INT 2018. [DOI: 10.1002/pi.5571] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Peng Dong
- Key Laboratory of Synthesis and Self-assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; PR China
- College of Chemical Engineering and Materials Science; Tianjin University of Science and Technology; PR China
| | - Kun Cui
- Key Laboratory of Synthesis and Self-assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; PR China
| | - Fang Xu
- Key Laboratory of Synthesis and Self-assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; PR China
- College of Chemical Engineering and Materials Science; Tianjin University of Science and Technology; PR China
| | - Tao Jiang
- College of Chemical Engineering and Materials Science; Tianjin University of Science and Technology; PR China
| | - Zhi Ma
- Key Laboratory of Synthesis and Self-assembly Chemistry for Organic Functional Molecules, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; PR China
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160
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Liu K, Nasrallah J, Chen L, Huang L, Ni Y, Lin S, Wang H. A facile template approach to preparing stable NFC/Ag/polyaniline nanocomposites for imparting multifunctionality to paper. Carbohydr Polym 2018; 194:97-102. [PMID: 29801864 DOI: 10.1016/j.carbpol.2018.04.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 03/05/2018] [Accepted: 04/03/2018] [Indexed: 10/17/2022]
Abstract
Nanocomposites of function polymer and inorganic nanoparticles have many beneficial properties and can be used in many applications. However, the formation of aggregates of the polymer and inorganic nanoparticles in the nanocomposites limits their use in practical applications. Here, a facile approach to preparing stable nanofibrillated cellulose (NFC)/Ag/polyaniline nanocomposites by the templates of NFC was developed. The Ag nanoparticles and polyaniline were loaded on the NFC by the reduction of Ag cations and in situ chemical polymerization in the templates of NFC. The network structure of the NFC and the electrostatic repulsion resulted in the formation of stable nanocomposites. Owing to the well-dispersed Ag nanoparticles and polyaniline in the nanocomposites, the nanocomposites can be coated on the paper uniformly, thus imparting excellent conductivity and antibacterial properties to paper. The coated paper can be used as a new type of conductive paper with excellent antibacterial activity.
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Affiliation(s)
- Kai Liu
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Joseph Nasrallah
- Limerick Pulp and Paper Centre, Department of Chemical Engineering, University of New Brunswick, Fredericton, NB, E3B 5A3, Canada
| | - Lihui Chen
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Liulian Huang
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yonghao Ni
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Limerick Pulp and Paper Centre, Department of Chemical Engineering, University of New Brunswick, Fredericton, NB, E3B 5A3, Canada
| | - Shan Lin
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Hongping Wang
- Jinshan College, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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161
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Liu L, Luo S, Qing Y, Yan N, Wu Y, Xie X, Hu F. A Temperature-Controlled, Conductive PANI@CNFs/MEO 2 MA/PEGMA Hydrogel for Flexible Temperature Sensors. Macromol Rapid Commun 2018; 39:e1700836. [PMID: 29570892 DOI: 10.1002/marc.201700836] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 02/14/2018] [Indexed: 01/31/2023]
Abstract
Electrically conductive, yet stimuli-responsive hydrogels are highly desirable for many technological applications. However, the discontinuous conductivity of hydrogels during the response process has become a bottleneck that limits their application. To overcome this constraint, a linearly tunable, electrically conductive hydrogel is prepared using in-situ polymerized polyaniline (PANI) on a CNFs/MEO2 MA/PEGMA hydrogel (PANI@CMP hydrogel) substrate. The PANI@CMP hydrogel exhibits temperature-tunable electrical conductivity due to the liner relationship between thermosensitivity and temperature of the CMP hydrogel substrate. Furthermore, the stiffness and elasticity of the resultant hydrogel after PANI introduction is enhanced via physical interactions, and the compression load is improved by 42%. A highly sensitive temperature sensor is therefore fabricated with PANI@CMP hydrogel as the flexible induction element, and this sensor achieves temperature monitoring from 20 to 60 °C. This new temperature-controllable conductive hydrogel has excellent mechanical properties, showing great potential for applications in flexible smart sensors, conductive fillers, and medical devices.
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Affiliation(s)
- Liu Liu
- College of Materials Science and Technology, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China
| | - Sha Luo
- College of Materials Science and Technology, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China.,Central of Hunan Forest Products Quality Inspection and Testing, Changsha, Hunan, 410004, China
| | - Yan Qing
- College of Materials Science and Technology, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China.,Hunan Provincial Collaborative Innovation Center for High-efficiency Utilization of Wood and Bamboo Resources, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China
| | - Ning Yan
- College of Materials Science and Technology, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China.,Faculty of Forestry, University of Toronto, Toronto, Ontario, M5S 2E8, Canada
| | - Yiqiang Wu
- College of Materials Science and Technology, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China.,Hunan Provincial Collaborative Innovation Center for High-efficiency Utilization of Wood and Bamboo Resources, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China
| | - Xinfeng Xie
- School of Forest Resources and Environmental Science, Michigan Technological University, 1400 Townsend Drive Houghton, MI, 49931, USA
| | - Feiyu Hu
- College of Materials Science and Technology, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China
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162
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Yang W, Shao B, Liu T, Zhang Y, Huang R, Chen F, Fu Q. Robust and Mechanically and Electrically Self-Healing Hydrogel for Efficient Electromagnetic Interference Shielding. ACS APPLIED MATERIALS & INTERFACES 2018; 10:8245-8257. [PMID: 29381055 DOI: 10.1021/acsami.7b18700] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Autonomously self-healing hydrogels have received considerable attentions due to their capacity for repairing themselves spontaneously after suffering damage, which can provide a better stability and a longer life span. In this work, a robust and mechanically and electrically self-healing hydrogel with an efficient electromagnetic interference (EMI) shielding performance was successfully fabricated via the incorporation of multiwalled carbon nanotubes (MWCNTs) into the hydrophobically associated polyacrylamide (PAM) hydrogels by using cellulose nanofiber (CNF) as the dispersant. It was been found that CNF could not only assist the homogeneous dispersion of MWCNTs but also effectively enhance the mechanical property of the resultant hydrogels. As a result, the optimal tensile strength (≈0.24 MPa), electrical conductivity (≈0.85 S m-1), and EMI shielding effectiveness (≈28.5 dB) were achieved for the PAM/CNF/MWCNT composite hydrogels with 1 wt % MWCNTs and 0.3 wt % CNF, which showed 458, 844, and 90% increase over (≈0.043 MPa, ≈0.09 S m-1, and ≈15 dB, respectively) the PAM hydrogel. More encouragingly, these composite hydrogels could rapidly restore their electrical conductivity and EMI shielding effectiveness after mechanical damage at room temperature without any external stimulus. With outstanding mechanical and self-healing properties, the prepared composite hydrogels were similar to human skin, but beyond human skin owing to their additional satisfactory electrical and EMI shielding performances. They may offer promising and broad prospects in the field of simulate skin and protection of precision electronics.
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Affiliation(s)
- Weixing Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Bowen Shao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Tianyu Liu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Yiyin Zhang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Rui Huang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Feng Chen
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
| | - Qiang Fu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering , Sichuan University , Chengdu 610065 , China
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163
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Lin C, Sheng D, Liu X, Xu S, Ji F, Dong L, Zhou Y, Yang Y. NIR induced self-healing electrical conductivity polyurethane/graphene nanocomposites based on Diels−Alder reaction. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.02.036] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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164
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Yu Z, Liu J, Tan CSY, Scherman OA, Abell C. Supramolecular Nested Microbeads as Building Blocks for Macroscopic Self-Healing Scaffolds. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711522] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ziyi Yu
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
| | - Ji Liu
- Melville Laboratory for Polymer Synthesis; Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
| | - Cindy Soo Yun Tan
- Melville Laboratory for Polymer Synthesis; Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
- Faculty of Applied Sciences; Universiti Teknologi MARA; 94300 Kota Samarahan Sarawak Malaysia
| | - Oren A. Scherman
- Melville Laboratory for Polymer Synthesis; Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
| | - Chris Abell
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
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165
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Yu Z, Liu J, Tan CSY, Scherman OA, Abell C. Supramolecular Nested Microbeads as Building Blocks for Macroscopic Self-Healing Scaffolds. Angew Chem Int Ed Engl 2018; 57:3079-3083. [PMID: 29377541 PMCID: PMC5915745 DOI: 10.1002/anie.201711522] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Indexed: 12/13/2022]
Abstract
The ability to construct self‐healing scaffolds that are injectable and capable of forming a designed morphology offers the possibility to engineer sustainable materials. Herein, we introduce supramolecular nested microbeads that can be used as building blocks to construct macroscopic self‐healing scaffolds. The core–shell microbeads remain in an “inert” state owing to the isolation of a pair of complementary polymers in a form that can be stored as an aqueous suspension. An annealing process after injection effectively induces the re‐construction of the microbead units, leading to supramolecular gelation in a preconfigured shape. The resulting macroscopic scaffold is dynamically stable, displaying self‐recovery in a self‐healing electronic conductor. This strategy of using the supramolecular assembled nested microbeads as building blocks represents an alternative to injectable hydrogel systems, and shows promise in the field of structural biomaterials and flexible electronics.
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Affiliation(s)
- Ziyi Yu
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Ji Liu
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Cindy Soo Yun Tan
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK.,Faculty of Applied Sciences, Universiti Teknologi MARA, 94300, Kota Samarahan, Sarawak, Malaysia
| | - Oren A Scherman
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Chris Abell
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
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166
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Du Y, Li D, Liu L, Gai G. Recent Achievements of Self-Healing Graphene/Polymer Composites. Polymers (Basel) 2018; 10:E114. [PMID: 30966150 PMCID: PMC6415098 DOI: 10.3390/polym10020114] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 01/21/2018] [Accepted: 01/22/2018] [Indexed: 02/07/2023] Open
Abstract
Self-healing materials have attracted much attention because that they possess the ability to increase the lifetime of materials and reduce the total cost of systems during the process of long-term use; incorporation of functional material enlarges their applications. Graphene, as a promising additive, has received great attention due to its large specific surface area, ultrahigh conductivity, strong antioxidant characteristics, thermal stability, high thermal conductivity, and good mechanical properties. In this brief review, graphene-containing polymer composites with self-healing properties are summarized including their preparations, self-healing conditions, properties, and applications. In addition, future perspectives of graphene/polymer composites are briefly discussed.
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Affiliation(s)
- Yongxu Du
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Dong Li
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Libin Liu
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Guangjie Gai
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
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167
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Teng L, Chen Y, Jin M, Jia Y, Wang Y, Ren L. Weak Hydrogen Bonds Lead to Self-Healable and Bioadhesive Hybrid Polymeric Hydrogels with Mineralization-Active Functions. Biomacromolecules 2018; 19:1939-1949. [DOI: 10.1021/acs.biomac.7b01688] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Lijing Teng
- School of Medicine, South China University of Technology, Guangzhou 510006, People’s Republic of China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, People’s Republic of China
| | - Yunhua Chen
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, People’s Republic of China
| | - Min Jin
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Yongguang Jia
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, People’s Republic of China
| | - Yingjun Wang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, People’s Republic of China
| | - Li Ren
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou 510006, People’s Republic of China
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168
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Jones CD, Steed JW. Gels with sense: supramolecular materials that respond to heat, light and sound. Chem Soc Rev 2018; 45:6546-6596. [PMID: 27711667 DOI: 10.1039/c6cs00435k] [Citation(s) in RCA: 293] [Impact Index Per Article: 48.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Advances in the field of supramolecular chemistry have made it possible, in many situations, to reliably engineer soft materials to address a specific technological problem. Particularly exciting are "smart" gels that undergo reversible physical changes on exposure to remote, non-invasive environmental stimuli. This review explores the development of gels which are transformed by heat, light and ultrasound, as well as other mechanical inputs, applied voltages and magnetic fields. Focusing on small-molecule gelators, but with reference to organic polymers and metal-organic systems, we examine how the structures of gelator assemblies influence the physical and chemical mechanisms leading to thermo-, photo- and mechano-switchable behaviour. In addition, we evaluate how the unique and versatile properties of smart materials may be exploited in a wide range of applications, including catalysis, crystal growth, ion sensing, drug delivery, data storage and biomaterial replacement.
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Affiliation(s)
| | - Jonathan W Steed
- Department of Chemistry, Durham University, South Road, DH1 3LE, UK.
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169
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Kim SM, Jeon H, Shin SH, Park SA, Jegal J, Hwang SY, Oh DX, Park J. Superior Toughness and Fast Self-Healing at Room Temperature Engineered by Transparent Elastomers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:1705145. [PMID: 29131415 DOI: 10.1002/adma.201705145] [Citation(s) in RCA: 301] [Impact Index Per Article: 50.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 09/27/2017] [Indexed: 05/28/2023]
Abstract
The most important properties of self-healing polymers are efficient recovery at room temperature and prolonged durability. However, these two characteristics are contradictory, making it difficult to optimize them simultaneously. Herein, a transparent and easily processable thermoplastic polyurethane (TPU) with the highest reported tensile strength and toughness (6.8 MPa and 26.9 MJ m-3 , respectively) is prepared. This TPU is superior to reported contemporary room-temperature self-healable materials and conveniently heals within 2 h through facile aromatic disulfide metathesis engineered by hard segment embedded aromatic disulfides. After the TPU film is cut in half and respliced, the mechanical properties recover to more than 75% of those of the virgin sample within 2 h. Hard segments with an asymmetric alicyclic structure are more effective than those with symmetric alicyclic, linear aliphatic, and aromatic structures. An asymmetric structure provides the optimal metathesis efficiency for the embedded aromatic disulfide while preserving the remarkable mechanical properties of TPU, as indicated by rheological and surface investigations. The demonstration of a scratch-detecting electrical sensor coated on a tough TPU film capable of auto-repair at room temperature suggests that this film has potential applications in the wearable electronics industry.
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Affiliation(s)
- Seon-Mi Kim
- Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
| | - Hyeonyeol Jeon
- Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
| | - Sung-Ho Shin
- Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
| | - Seul-A Park
- Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
| | - Jonggeon Jegal
- Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
| | - Sung Yeon Hwang
- Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
- Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
| | - Dongyeop X Oh
- Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
- Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
| | - Jeyoung Park
- Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan, 44429, Republic of Korea
- Advanced Materials and Chemical Engineering, University of Science and Technology (UST), Daejeon, 34113, Republic of Korea
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170
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Abstract
This review places an emphasis on chitosan intelligent hydrogels. The fabrication methods and mechanisms are introduced in this review and the interactions of the formation of hydrogels with both physical and chemical bonds are also introduced. The relationship between the structural characteristics and the corresponding functions of stimuli-responsive characteristics, self-healing functions and high mechanical strength properties of the chitosan hydrogels are discussed in detail.
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Affiliation(s)
- Jing Fu
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials
- Hubei University
- Wuhan 430062
- P. R. China
- School of Chemistry and Environment Engineering
| | - Fuchao Yang
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials
- Hubei University
- Wuhan 430062
- P. R. China
| | - Zhiguang Guo
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials
- Hubei University
- Wuhan 430062
- P. R. China
- State Key Laboratory of Solid Lubrication
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171
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Park J, Kim KY, Kim C, Lee JH, Kim JH, Lee SS, Choi Y, Jung JH. A crown-ether-based moldable supramolecular gel with unusual mechanical properties and controllable electrical conductivity prepared by cation-mediated cross-linking. Polym Chem 2018. [DOI: 10.1039/c8py00644j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Supramolecular gels that possess high mechanical properties and unusual electrical conductivity were prepared by incorporating Cs+.
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Affiliation(s)
- Jaehyeon Park
- Department of Chemistry and Research Institute of Natural Sciences Gyeongsang National University
- Jinju
- Korea
| | - Ka Young Kim
- Department of Chemistry and Research Institute of Natural Sciences Gyeongsang National University
- Jinju
- Korea
| | - Chaelin Kim
- Department of Chemistry and Research Institute of Natural Sciences Gyeongsang National University
- Jinju
- Korea
| | - Ji Ha Lee
- Department of Chemistry and Biochemistry
- The University of Kitakushu
- Kitakyushu 808-0135
- Japan
| | - Ju Hyun Kim
- Department of Chemistry and Research Institute of Natural Sciences Gyeongsang National University
- Jinju
- Korea
| | - Shim Sung Lee
- Department of Chemistry and Research Institute of Natural Sciences Gyeongsang National University
- Jinju
- Korea
| | - Yeonweon Choi
- Department of Chemistry and Research Institute of Natural Sciences Gyeongsang National University
- Jinju
- Korea
| | - Jong Hwa Jung
- Department of Chemistry and Research Institute of Natural Sciences Gyeongsang National University
- Jinju
- Korea
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172
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Xu T, Chu M, Wu Y, Liu J, Chi B, Xu H, Wan M, Mao C. Safer cables based on advanced materials with a self-healing technique that can be directly powered off and restored easily at any time. NEW J CHEM 2018. [DOI: 10.1039/c7nj04811d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A self-healing conductive hydrogel can be used as part of a cable in order for it to be powered off or restored at any time.
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Affiliation(s)
- Tingting Xu
- National and Local Joint Engineering Research Center of Biomedical Functional Materials
- Jiangsu Key Laboratory of Biofunctional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210023
| | - Meilin Chu
- National and Local Joint Engineering Research Center of Biomedical Functional Materials
- Jiangsu Key Laboratory of Biofunctional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210023
| | - Yinben Wu
- National and Local Joint Engineering Research Center of Biomedical Functional Materials
- Jiangsu Key Laboratory of Biofunctional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210023
| | - Jiahuan Liu
- National and Local Joint Engineering Research Center of Biomedical Functional Materials
- Jiangsu Key Laboratory of Biofunctional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210023
| | - Bo Chi
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Food Science and Light Industry
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
| | - Hong Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering
- College of Food Science and Light Industry
- Jiangsu National Synergetic Innovation Center for Advanced Materials
- Nanjing Tech University
- Nanjing 211816
| | - Mimi Wan
- National and Local Joint Engineering Research Center of Biomedical Functional Materials
- Jiangsu Key Laboratory of Biofunctional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210023
| | - Chun Mao
- National and Local Joint Engineering Research Center of Biomedical Functional Materials
- Jiangsu Key Laboratory of Biofunctional Materials
- College of Chemistry and Materials Science
- Nanjing Normal University
- Nanjing 210023
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173
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Sun N, Gao X, Wu A, Lu F, Zheng L. Mechanically strong ionogels formed by immobilizing ionic liquid in polyzwitterion networks. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.10.121] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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174
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Gao X, Jing X, Li Y, Zhu J, Zhang M. Synthesis and characterization of phosphorized polyaniline doped with phytic acid and its anticorrosion properties for Mg-Li alloy. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2017. [DOI: 10.1080/10601325.2017.1387485] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Xiaohui Gao
- Department of Materials Chemistry, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, China
- Department of Basic Chemistry, College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, China
| | - Xiaoyan Jing
- Department of Materials Chemistry, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, China
| | - Yufeng Li
- Department of Materials Chemistry, College of Material Science and Engineering, Qiqihar University, Qiqihar, China
| | - Jingjing Zhu
- Department of Basic Chemistry, College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, China
| | - Milin Zhang
- Department of Materials Chemistry, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, China
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175
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Shi Y, Zhou X, Yu G. Material and Structural Design of Novel Binder Systems for High-Energy, High-Power Lithium-Ion Batteries. Acc Chem Res 2017; 50:2642-2652. [PMID: 28981258 DOI: 10.1021/acs.accounts.7b00402] [Citation(s) in RCA: 113] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Developing high-performance battery systems requires the optimization of every battery component, from electrodes and electrolyte to binder systems. However, the conventional strategy to fabricate battery electrodes by casting a mixture of active materials, a nonconductive polymer binder, and a conductive additive onto a metal foil current collector usually leads to electronic or ionic bottlenecks and poor contacts due to the randomly distributed conductive phases. When high-capacity electrode materials are employed, the high stress generated during electrochemical reactions disrupts the mechanical integrity of traditional binder systems, resulting in decreased cycle life of batteries. Thus, it is critical to design novel binder systems that can provide robust, low-resistance, and continuous internal pathways to connect all regions of the electrode. In this Account, we review recent progress on material and structural design of novel binder systems. Nonconductive polymers with rich carboxylic groups have been adopted as binders to stabilize ultrahigh-capacity inorganic electrodes that experience large volume or structural change during charge/discharge, due to their strong binding capability to active particles. To enhance the energy density of batteries, different strategies have been adopted to design multifunctional binder systems based on conductive polymers because they can play dual functions of both polymeric binders and conductive additives. We first present that multifunctional binder systems have been designed by tailoring the molecular structures of conductive polymers. Different functional groups are introduced to the polymeric backbone to enable multiple functionalities, allowing separated optimization of the mechanical and swelling properties of the binders without detrimental effect on electronic property. We then describe the design of multifunctional binder systems via rationally controlling their nano- and molecular structures, developing the conductive polymer gel binders with 3D framework nanostructures. These gel binders provide multiple functions owing to their structure derived properties. The gel framework facilitates both electronic and ionic transport owing to the continuous pathways for electrons and hierarchical pores for ion diffusion. The polymer coating formed on every particle acts as surface modification and prevents particle aggregation. The mechanically strong and ductile gel framework also sustains long-term stability of electrodes. In addition, the structures and properties of gel binders can be facilely tuned. We further introduce the development of multifunctional binders by hybridizing conductive polymers with other functional materials. Meanwhile mechanistic understanding on the roles that novel binders play in the electrochemical processes of batteries is also reviewed to reveal general design rules for future binder systems. We conclude with perspectives on their future development with novel multifunctionalities involved. Highly efficient binder systems with well-tailored molecular and nanostructures are critical to reach the entire volume of the battery and maximize energy use for high-energy and high-power lithium batteries. We hope this Account promotes further efforts toward synthetic control, fundamental investigation, and application exploration of multifunctional binder materials.
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Affiliation(s)
- Ye Shi
- Materials Science and Engineering
Program and Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Xingyi Zhou
- Materials Science and Engineering
Program and Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Guihua Yu
- Materials Science and Engineering
Program and Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
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176
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Mansukhani ND, Guiney LM, Wei Z, Roth EW, Putz KW, Luijten E, Hersam MC. Optothermally Reversible Carbon Nanotube-DNA Supramolecular Hybrid Hydrogels. Macromol Rapid Commun 2017; 39. [PMID: 29065239 DOI: 10.1002/marc.201700587] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Indexed: 11/09/2022]
Abstract
Supramolecular hydrogels (SMHs) are three-dimensional constructs wherein the majority of the volume is occupied by water. Since the bonding forces between the components of SMHs are noncovalent, SMH properties are often tunable, stimuli-responsive, and reversible, which enables applications including triggered drug release, sensing, and tissue engineering. Meanwhile, single-walled carbon nanotubes (SWCNTs) possess superlative electrical and thermal conductivities, high mechanical strength, and strong optical absorption at near-infrared wavelengths that have the potential to add unique functionality to SMHs. However, SWCNT-based SMHs have thus far not realized the potential of the optical properties of SWCNTs to enable reversible response to near-infrared irradiation. Here, we present a novel SMH architecture comprised solely of DNA and SWCNTs, wherein noncovalent interactions provide structural integrity without compromising the intrinsic properties of SWCNTs. The mechanical properties of these SMHs are readily tuned by varying the relative concentrations of DNA and SWCNTs, which varies the cross-linking density as shown by molecular dynamics simulations. Moreover, the SMH gelation transition is fully reversible and can be triggered by a change in temperature or near-infrared irradiation. This work explores a new regime for SMHs with potential utility for a range of applications including sensors, actuators, responsive substrates, and 3D printing.
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Affiliation(s)
- Nikhita D Mansukhani
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL, 60208, USA
| | - Linda M Guiney
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL, 60208, USA
| | - Zonghui Wei
- Applied Physics Graduate Program, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Eric W Roth
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL, 60208, USA
| | - Karl W Putz
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL, 60208, USA
| | - Erik Luijten
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL, 60208, USA.,Applied Physics Graduate Program, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA.,Department of Engineering Sciences and Applied Mathematics, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA.,Department of Physics and Astronomy, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Mark C Hersam
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Drive, Evanston, IL, 60208, USA.,Applied Physics Graduate Program, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA.,Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA.,Department of Electrical Engineering and Computer Science, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
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177
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Bilodeau RA, Kramer RK. Self-Healing and Damage Resilience for Soft Robotics: A Review. Front Robot AI 2017. [DOI: 10.3389/frobt.2017.00048] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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178
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Zhang S, Cicoira F. Water-Enabled Healing of Conducting Polymer Films. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1703098. [PMID: 28846168 DOI: 10.1002/adma.201703098] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Indexed: 06/07/2023]
Abstract
The conducting polymer polyethylenedioxythiophene doped with polystyrene sulfonate (PEDOT:PSS) has become one of the most successful organic conductive materials due to its high air stability, high electrical conductivity, and biocompatibility. In recent years, a great deal of attention has been paid to its fundamental physicochemical properties, but its healability has not been explored in depth. This communication reports the first observation of mechanical and electrical healability of PEDOT:PSS thin films. Upon reaching a certain thickness (about 1 µm), PEDOT:PSS thin films damaged with a sharp blade can be electrically healed by simply wetting the damaged area with water. The process is rapid, with a response time on the order of 150 ms. Significantly, after being wetted the films are transformed into autonomic self-healing materials without the need of external stimulation. This work reveals a new property of PEDOT:PSS and enables its immediate use in flexible and biocompatible electronics, such as electronic skin and bioimplanted electronics, placing conducting polymers on the front line for healing applications in electronics.
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Affiliation(s)
- Shiming Zhang
- Department of Chemical Engineering, Polytechnique Montréal, Montréal, Québec, H3C3J7, Canada
| | - Fabio Cicoira
- Department of Chemical Engineering, Polytechnique Montréal, Montréal, Québec, H3C3J7, Canada
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179
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Zhang R, Wang L, Shen Z, Li M, Guo X, Yao Y. Ultrastretchable, Tough, and Notch-Insensitive Hydrogels Formed with Spherical Polymer Brush Crosslinker. Macromol Rapid Commun 2017; 38. [DOI: 10.1002/marc.201700455] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 08/31/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Rui Zhang
- State Key Laboratory of Chemical Engineering; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 China
| | - Lei Wang
- State Key Laboratory of Chemical Engineering; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 China
| | - Zheqi Shen
- State Key Laboratory of Chemical Engineering; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 China
| | - Min Li
- State Key Laboratory of Chemical Engineering; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 China
| | - Xuhong Guo
- State Key Laboratory of Chemical Engineering; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 China
| | - Yuan Yao
- School of Materials Science and Engineering; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 China
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180
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Chen S, He T, Su Y, Lu Y, Bao L, Chen L, Zhang Q, Wang J, Chen R, Wu F. Ni-Rich LiNi 0.8Co 0.1Mn 0.1O 2 Oxide Coated by Dual-Conductive Layers as High Performance Cathode Material for Lithium-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2017; 9:29732-29743. [PMID: 28799739 DOI: 10.1021/acsami.7b08006] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Ni-rich materials are appealing to replace LiCoO2 as cathodes in Li-ion batteries due to their low cost and high capacity. However, there are also some disadvantages for Ni-rich cathode materials such as poor cycling and rate performance, especially under high voltage. Here, we demonstrate the effect of dual-conductive layers composed of Li3PO4 and PPy for layered Ni-rich cathode material. Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy show that the coating layers are composed of Li3PO4 and PPy. (NH4)2HPO4 transformed to Li3PO4 after reacting with surface lithium residuals and formed an inhomogeneous coating layer which would remarkably improve the ionic conductivity of the cathode materials and reduce the generation of HF. The PPy layer could form a uniform film which can make up for the Li3PO4 coating defects and enhance the electronic conductivity. The stretchy PPy capsule shell can reduce the generation of internal cracks by resisting the internal pressure as well. Thus, ionic and electronic conductivity, as well as surface structure stability have been enhanced after the modification. The electrochemistry tests show that the modified cathodes exhibited much improved cycling stability and rate capability. The capacity retention of the modified cathode material is 95.1% at 0.1 C after 50 cycles, whereas the bare sample is only 86%, and performs 159.7 mAh/g at 10 C compared with 125.7 mAh/g for the bare. This effective design strategy can be utilized to enhance the cycle stability and rate performance of other layered cathode materials.
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Affiliation(s)
- Shi Chen
- School of Material Science and Engineering, Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology , Beijing, 100081, China
- Collaborative Innovation Center for Electric Vehicles in Beijing , Beijing, 100081, China
- National Development Center of High Technology Green Materials , Beijing, 100081, China
| | - Tao He
- School of Material Science and Engineering, Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology , Beijing, 100081, China
- National Development Center of High Technology Green Materials , Beijing, 100081, China
| | - Yuefeng Su
- School of Material Science and Engineering, Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology , Beijing, 100081, China
- Collaborative Innovation Center for Electric Vehicles in Beijing , Beijing, 100081, China
- National Development Center of High Technology Green Materials , Beijing, 100081, China
| | - Yun Lu
- School of Material Science and Engineering, Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology , Beijing, 100081, China
- National Development Center of High Technology Green Materials , Beijing, 100081, China
| | - Liying Bao
- School of Material Science and Engineering, Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology , Beijing, 100081, China
- National Development Center of High Technology Green Materials , Beijing, 100081, China
| | - Lai Chen
- School of Material Science and Engineering, Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology , Beijing, 100081, China
| | - Qiyu Zhang
- School of Material Science and Engineering, Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology , Beijing, 100081, China
| | - Jing Wang
- School of Material Science and Engineering, Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology , Beijing, 100081, China
- Collaborative Innovation Center for Electric Vehicles in Beijing , Beijing, 100081, China
- National Development Center of High Technology Green Materials , Beijing, 100081, China
| | - Renjie Chen
- School of Material Science and Engineering, Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology , Beijing, 100081, China
- Collaborative Innovation Center for Electric Vehicles in Beijing , Beijing, 100081, China
- National Development Center of High Technology Green Materials , Beijing, 100081, China
| | - Feng Wu
- School of Material Science and Engineering, Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology , Beijing, 100081, China
- Collaborative Innovation Center for Electric Vehicles in Beijing , Beijing, 100081, China
- National Development Center of High Technology Green Materials , Beijing, 100081, China
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181
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Schleder GR, Fazzio A, Arantes JT. Dynamic covalent bond from first principles: Diarylbibenzofuranone structural, electronic, and oxidation studies. J Comput Chem 2017; 38:2675-2679. [DOI: 10.1002/jcc.24899] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 06/16/2017] [Accepted: 07/06/2017] [Indexed: 01/09/2023]
Affiliation(s)
- Gabriel R. Schleder
- CECS - Center for Engineering; Modeling and Applied Social Sciences, Federal University of ABC (UFABC); Brazil
| | - Adalberto Fazzio
- Brazilian Nanotechnology National Laboratory (LNNano)/CNPEM, PO Box 6192; Campinas São Paulo 13083-970 Brazil
- CCNH - Center for Natural Sciences and Humanities, Federal University of ABC (UFABC); Brazil
| | - Jeverson T. Arantes
- CECS - Center for Engineering; Modeling and Applied Social Sciences, Federal University of ABC (UFABC); Brazil
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182
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Zhao F, Shi Y, Pan L, Yu G. Multifunctional Nanostructured Conductive Polymer Gels: Synthesis, Properties, and Applications. Acc Chem Res 2017. [PMID: 28649845 DOI: 10.1021/acs.accounts.7b00191] [Citation(s) in RCA: 168] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Conductive polymers have attracted significant interest over the past few decades because they synergize the advantageous features of conventional polymeric materials and organic conductors. With rationally designed nanostructures, conductive polymers can further exhibit exceptional mechanical, electrical, and optical properties because of their confined dimensions at the nanoscale level. Among various nanostructured conductive polymers, conductive polymer gels (CPGs) with synthetically tunable hierarchical 3D network structures show great potential for a wide range of applications, such as bioelectronics, and energy storage/conversion devices owing to their structural features. CPGs retain the properties of nanosized conductive polymers during the assembly of the nanobuilding blocks into a monolithic macroscopic structure while generating structure-derived features from the highly cross-linked network. In this Account, we review our recent progress on the synthesis, properties, and novel applications of dopant cross-linked CPGs. We first describe the synthetic strategies, in which molecules with multiple functional groups are adopted as cross-linkers to cross-link conductive polymer chains into a 3D molecular network. These cross-linking molecules also act as dopants to improve the electrical conductivity of the gel network. The microstructure and physical/chemical properties of CPGs can be tuned by controlling the synthetic conditions such as species of monomers and cross-linkers, reaction temperature, and solvents. By incorporating other functional polymers or particles into the CPG matrix, hybrid gels have been synthesized with tailored structures. These hybrid gel materials retain the functionalities from each component, as well as enable synergic effects to improve mechanical and electrical properties of CPGs. We then introduce the unique structure-derived properties of the CPGs. The network facilitates both electronic and ionic transport owing to the continuous pathways for electrons and hierarchical pores for ion diffusion. CPGs also provide high surface area and solvent compatibility, similar to natural gels. With these improved properties, CPGs have been explored to enable novel conceptual devices in diverse applications from smart electronics and ultrasensitive biosensors, to energy storage and conversion devices. CPGs have also been adopted for developing hybrid materials with multifunctionalities, such as stimuli responsiveness, self-healing properties, and super-repellency to liquid. With synthetically tunable physical/chemical properties, CPGs emerge as a unique material platform to develop novel multifunctional materials that have the potential to impact electronics, energy, and environmental technologies. We hope that this Account promotes further efforts toward synthetic control, fundamental investigation, and application exploration of CPGs.
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Affiliation(s)
- Fei Zhao
- Materials
Science and Engineering Program and Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Ye Shi
- Materials
Science and Engineering Program and Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Lijia Pan
- Collaborative
Innovation Center of Advanced Microstructures, School of Electronic
Science and Engineering, Nanjing University, Nanjing 210093, China
| | - Guihua Yu
- Materials
Science and Engineering Program and Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
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183
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Yao B, Wang H, Zhou Q, Wu M, Zhang M, Li C, Shi G. Ultrahigh-Conductivity Polymer Hydrogels with Arbitrary Structures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1700974. [PMID: 28513994 DOI: 10.1002/adma.201700974] [Citation(s) in RCA: 148] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 03/29/2017] [Indexed: 06/07/2023]
Abstract
A poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) hydrogel is prepared by thermal treatment of a commercial PEDOT:PSS (PH1000) suspension in 0.1 mol L-1 sulfuric acid followed by partially removing its PSS component with concentrated sulfuric acid. This hydrogel has a low solid content of 4% (by weight) and an extremely high conductivity of 880 S m-1 . It can be fabricated into different shapes such as films, fibers, and columns with arbitrary sizes for practical applications. A highly conductive and mechanically strong porous fiber is prepared by drying PEDOT:PSS hydrogel fiber to fabricate a current-collector-free solid-state flexible supercapacitor. This fiber supercapacitor delivers a volumetric capacitance as high as 202 F cm-3 at 0.54 A cm-3 with an extraordinary high-rate performance. It also shows excellent electrochemical stability and high flexibility, promising for the application as wearable energy-storage devices.
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Affiliation(s)
- Bowen Yao
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Haiyan Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Qinqin Zhou
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Mingmao Wu
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Miao Zhang
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Chun Li
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Gaoquan Shi
- Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
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184
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Han Y, Wu X, Zhang X, Lu C. Self-Healing, Highly Sensitive Electronic Sensors Enabled by Metal-Ligand Coordination and Hierarchical Structure Design. ACS APPLIED MATERIALS & INTERFACES 2017; 9:20106-20114. [PMID: 28537378 DOI: 10.1021/acsami.7b05204] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Electronic sensors capable of capturing mechanical deformation are highly desirable for the next generation of artificial intelligence products. However, it remains a challenge to prepare self-healing, highly sensitive, and cost-efficient sensors for both tiny and large human motion monitoring. Here, a new kind of self-healing, sensitive, and versatile strain sensors has been developed by combining metal-ligand chemistry with hierarchical structure design. Specifically, a self-healing and nanostructured conductive layer is deposited onto a self-healing elastomer substrate cross-linked by metal-ligand coordinate bonds, forming a hierarchically structured sensor. The resultant sensors exhibit high sensitivity, low detection limit (0.05% strain), remarkable self-healing capability, as well as excellent reproducibility. Notably, the self-healed sensors are still capable to precisely capture not only tiny physiological activities (such as speech, swallowing, and coughing) but also large human motions (finger and neck bending, touching). Moreover, harsh treatments, including bending over 50000 times and mechanical washing, could not influence the sensitivity and stability of the self-healed sensors in human motion monitoring. This proposed strategy via alliance of metal-ligand chemistry and hierarchical structure design represents a general approach to manufacturing self-healing, robust sensors, and other electronic devices.
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Affiliation(s)
- Yangyang Han
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University , No. 24 South Section 1 of First Ring Road, Cheng Du 610065, China
| | - Xiaodong Wu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University , No. 24 South Section 1 of First Ring Road, Cheng Du 610065, China
| | - Xinxing Zhang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University , No. 24 South Section 1 of First Ring Road, Cheng Du 610065, China
| | - Canhui Lu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University , No. 24 South Section 1 of First Ring Road, Cheng Du 610065, China
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185
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Zhang Z, Wang H, Wang X, Li Y, Song B, Bolarinwa O, Reese RA, Zhang T, Wang XQ, Cai J, Xu B, Wang M, Liu C, Yang HB, Li X. Supersnowflakes: Stepwise Self-Assembly and Dynamic Exchange of Rhombus Star-Shaped Supramolecules. J Am Chem Soc 2017; 139:8174-8185. [PMID: 28558196 DOI: 10.1021/jacs.7b01326] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
With the goal of increasing the complexity of metallo-supramolecules, two rhombus star-shaped supramolecular architectures, namely, supersnowflakes, were designed and assembled using multiple 2,2':6',2″-terpyridine (tpy) ligands in a stepwise manner. In the design of multicomponent self-assembly, ditopic and tritopic ligands were bridged through Ru(II) with strong coordination to form metal-organic ligands for the subsequent self-assembly with a hexatopic ligand and Zn(II). The combination of Ru(II)-organic ligands with high stability and Zn(II) ions with weak coordination played a key role in the self-assembly of giant heteroleptic supersnowflakes, which encompassed three types of tpy-based organic ligands and two metal ions. With such a stepwise strategy, the self-sorting of individual building blocks was prevented from forming the undesired assemblies, e.g., small macrocycles and coordination polymers. Furthermore, the intra- and intermolecular dynamic exchange study of two supersnowflakes by NMR and mass spectrometry revealed the remarkable stability of these giant supramolecular complexes.
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Affiliation(s)
- Zhe Zhang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, School of Chemistry, Central China Normal University , Wuhan, Hubei 430079, China.,Department of Chemistry, University of South Florida , Tampa, Florida 33620, United States
| | - Heng Wang
- Department of Chemistry, University of South Florida , Tampa, Florida 33620, United States
| | - Xu Wang
- Department of Chemistry, Texas State University , San Marcos, Texas 78666, United States
| | - Yiming Li
- Department of Chemistry, University of South Florida , Tampa, Florida 33620, United States
| | - Bo Song
- Department of Chemistry, University of South Florida , Tampa, Florida 33620, United States
| | - Olapeju Bolarinwa
- Department of Chemistry, University of South Florida , Tampa, Florida 33620, United States
| | - R Alexander Reese
- Single Molecule Study Laboratory, College of Engineering and Nanoscale Science and Engineering Center, University of Georgia , Athens, Georgia 30602, United States
| | - Tong Zhang
- Single Molecule Study Laboratory, College of Engineering and Nanoscale Science and Engineering Center, University of Georgia , Athens, Georgia 30602, United States
| | - Xu-Qing Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University , Shanghai 200062, China
| | - Jianfeng Cai
- Department of Chemistry, University of South Florida , Tampa, Florida 33620, United States
| | - Bingqian Xu
- Single Molecule Study Laboratory, College of Engineering and Nanoscale Science and Engineering Center, University of Georgia , Athens, Georgia 30602, United States
| | - Ming Wang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , Changchun, Jilin 130012, China
| | - Changlin Liu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, School of Chemistry, Central China Normal University , Wuhan, Hubei 430079, China
| | - Hai-Bo Yang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University , Shanghai 200062, China
| | - Xiaopeng Li
- Department of Chemistry, University of South Florida , Tampa, Florida 33620, United States
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186
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Guo K, Lin MS, Feng JF, Pan M, Ding LS, Li BJ, Zhang S. The Deeply Understanding of the Self-Healing Mechanism for Self-Healing Behavior of Supramolecular Materials Based on Cyclodextrin-Guest Interactions. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201600593] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kun Guo
- Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization; Chengdu Institute of Biology; Chinese Academy of Sciences; Chengdu 610041 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Mu-Song Lin
- Guangdong Grid Co. Ltd. Electric Power Research Institute; Guangzhou 510080 China
| | - Jun-Feng Feng
- School of Life Science and Engineering; Southwest Jiaotong University; Chengdu 611756 China
| | - Min Pan
- State Key Laboratory of Polymer Materials Engineering; Polymer Research Institute of Sichuan University; Sichuan University; Chengdu 610065 China
| | - Li-Sheng Ding
- Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization; Chengdu Institute of Biology; Chinese Academy of Sciences; Chengdu 610041 China
| | - Bang-Jing Li
- Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization; Chengdu Institute of Biology; Chinese Academy of Sciences; Chengdu 610041 China
| | - Sheng Zhang
- State Key Laboratory of Polymer Materials Engineering; Polymer Research Institute of Sichuan University; Sichuan University; Chengdu 610065 China
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187
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He X, Zhang C, Wang M, Zhang Y, Liu L, Yang W. An Electrically and Mechanically Autonomic Self-healing Hybrid Hydrogel with Tough and Thermoplastic Properties. ACS APPLIED MATERIALS & INTERFACES 2017; 9:11134-11143. [PMID: 28276239 DOI: 10.1021/acsami.7b00358] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Conductive hydrogels are a class of composite materials that usually comprise hydrated polymers and conductive materials. Practical application requires the conductive hydrogels to have various properties such as high conductivity, toughness, self-healing, facile processing ability, and so on. Although challenging to have all the above-mentioned properties, a composite material composed of polymer hydrogel with embedded Au nanoparticles (i.e., P(NaSS)/P(VBIm-Cl)/PVA@Au) was found to show the comprehensive properties above in this paper. For example, P(NaSS)/P(VBIm-Cl)/PVA@Au exhibits mechanical and electrical self-healing properties at ambient conditions. In addition, P(NaSS)/P(VBIm-Cl)/PVA@Au is tough and thermoplastic, potentially making it useful for a variety of applications.
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Affiliation(s)
- Xiaoyan He
- Key Lab of Bioelectrochemistry and Environmental Analysis of Gansu, College of Chemistry and Chemical Engineering, Northwest Normal University , Lanzhou 730070, China
| | - Caiyun Zhang
- Key Lab of Bioelectrochemistry and Environmental Analysis of Gansu, College of Chemistry and Chemical Engineering, Northwest Normal University , Lanzhou 730070, China
| | - Meng Wang
- Key Lab of Bioelectrochemistry and Environmental Analysis of Gansu, College of Chemistry and Chemical Engineering, Northwest Normal University , Lanzhou 730070, China
| | - Yunlei Zhang
- Key Lab of Bioelectrochemistry and Environmental Analysis of Gansu, College of Chemistry and Chemical Engineering, Northwest Normal University , Lanzhou 730070, China
| | - Liqin Liu
- Key Lab of Bioelectrochemistry and Environmental Analysis of Gansu, College of Chemistry and Chemical Engineering, Northwest Normal University , Lanzhou 730070, China
| | - Wu Yang
- Key Lab of Bioelectrochemistry and Environmental Analysis of Gansu, College of Chemistry and Chemical Engineering, Northwest Normal University , Lanzhou 730070, China
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188
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Nakagawa H, Fujiki M, Sato T, Suzuki M, Hanabusa K. Characteristics of Gelation by Amides Based on trans-1,2-Diaminocyclohexane: The Importance of Different Substituents. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2017. [DOI: 10.1246/bcsj.20160360] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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189
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Cheng S, Xue Y, Lu Y, Li X, Dong J. Thermoresponsive Pyrrolidone Block Copolymer Organogels from 3D Micellar Networks. ACS OMEGA 2017; 2:105-112. [PMID: 31457214 PMCID: PMC6640968 DOI: 10.1021/acsomega.6b00327] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 12/30/2016] [Indexed: 06/10/2023]
Abstract
A new series of amphiphilic pyrrolidone diblock copolymers poly[N-(2-methacrylaoyxyethyl)pyrrolidone]-block-poly(methyl methacrylate) (PNMP m -b-PMMA n ; where m is fixed at 37 and n is varied from 45 to 378) is developed. Spontaneously situ-gelling behaviors are observed in isopropanol when n varies from 117 to 230, whereas only dissolution or precipitation appears when n is beyond this region. Further analysis reveals that uniform thermoinduced reversible gel-sol transitions are observed in those organogels, which is attributed to the disassembly from micellar networks to micelles as confirmed by electron microscopy and other techniques. The gel-sol transition temperature is highly dependent on n and increases as n increases. Conformational interactions analyzed using 1H NMR and 2D Noesy NMR suggest that the thermoinduced stretch of solvophilic PNMP segments within micelles and the sequencing variation in the isopropanol molecules are the major cause of the gel-sol transitions.
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Affiliation(s)
- Shuozhen Cheng
- College
of Chemistry and Molecules Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Yan Xue
- College
of Chemistry and Molecules Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Yechang Lu
- College
of Chemistry and Molecules Sciences, Wuhan University, Wuhan 430072, P. R. China
- Lonkey
Industrial Co., Ltd., Guangzhou 510660, P. R. China
| | - Xuefeng Li
- College
of Chemistry and Molecules Sciences, Wuhan University, Wuhan 430072, P. R. China
| | - Jinfeng Dong
- College
of Chemistry and Molecules Sciences, Wuhan University, Wuhan 430072, P. R. China
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190
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Wu Q, Wei J, Xu B, Liu X, Wang H, Wang W, Wang Q, Liu W. A robust, highly stretchable supramolecular polymer conductive hydrogel with self-healability and thermo-processability. Sci Rep 2017; 7:41566. [PMID: 28134283 PMCID: PMC5278500 DOI: 10.1038/srep41566] [Citation(s) in RCA: 102] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 12/20/2016] [Indexed: 12/24/2022] Open
Abstract
Dual amide hydrogen bond crosslinked and strengthened high strength supramolecular polymer conductive hydrogels were fabricated by simply in situ doping poly (N-acryloyl glycinamide-co-2-acrylamide-2-methylpropanesulfonic) (PNAGA-PAMPS) hydrogels with PEDOT/PSS. The nonswellable conductive hydrogels in PBS demonstrated high mechanical performances-0.22-0.58 MPa tensile strength, 1.02-7.62 MPa compressive strength, and 817-1709% breaking strain. The doping of PEDOT/PSS could significantly improve the specific conductivities of the hydrogels. Cyclic heating and cooling could lead to reversible sol-gel transition and self-healability due to the dynamic breakup and reconstruction of hydrogen bonds. The mending hydrogels recovered not only the mechanical properties, but also conductivities very well. These supramolecular conductive hydrogels could be designed into arbitrary shapes with 3D printing technique, and further, printable electrode can be obtained by blending activated charcoal powder with PNAGA-PAMPS/PEDOT/PSS hydrogel under melting state. The fabricated supercapacitor via the conducting hydrogel electrodes possessed high capacitive performances. These cytocompatible conductive hydrogels have a great potential to be used as electro-active and electrical biomaterials.
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Affiliation(s)
- Qian Wu
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300350, China
| | - Junjie Wei
- School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Bing Xu
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300350, China
| | - Xinhua Liu
- School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Hongbo Wang
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300350, China
| | - Wei Wang
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300350, China
| | - Qigang Wang
- School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Wenguang Liu
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin, 300350, China
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191
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Jeong DC, Lee J, Ro YH, Song C. Repairable photoactive polymer systems via metal–terpyridine-based self-assembly. Polym Chem 2017. [DOI: 10.1039/c7py00095b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The photocatalytic activity of polymeric systems ceased upon disassembly and was restored upon assembly through metal ion–ligand interaction.
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Affiliation(s)
- Dong-Cheol Jeong
- Department of Chemistry
- Sungkyunkwan University
- Suwon
- Republic of Korea
| | - Jookyeong Lee
- Department of Chemistry
- Sungkyunkwan University
- Suwon
- Republic of Korea
| | - Yu Hyeon Ro
- Department of Chemistry
- Sungkyunkwan University
- Suwon
- Republic of Korea
| | - Changsik Song
- Department of Chemistry
- Sungkyunkwan University
- Suwon
- Republic of Korea
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192
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Self-healing pH-sensitive cytosine- and guanosine-modified hyaluronic acid hydrogels via hydrogen bonding. POLYMER 2017. [DOI: 10.1016/j.polymer.2016.11.063] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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193
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Han L, Lu X, Wang M, Gan D, Deng W, Wang K, Fang L, Liu K, Chan CW, Tang Y, Weng LT, Yuan H. A Mussel-Inspired Conductive, Self-Adhesive, and Self-Healable Tough Hydrogel as Cell Stimulators and Implantable Bioelectronics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1601916. [PMID: 27779812 DOI: 10.1002/smll.201601916] [Citation(s) in RCA: 321] [Impact Index Per Article: 45.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 09/10/2016] [Indexed: 05/25/2023]
Abstract
A graphene oxide conductive hydrogel is reported that simultaneously possesses high toughness, self-healability, and self-adhesiveness. Inspired by the adhesion behaviors of mussels, our conductive hydrogel shows self-adhesiveness on various surfaces and soft tissues. The hydrogel can be used as self-adhesive bioelectronics, such as electrical stimulators to regulate cell activity and implantable electrodes for recording in vivo signals.
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Affiliation(s)
- Lu Han
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, Sichuan, China
| | - Xiong Lu
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, Sichuan, China
- National Engineering Research Center for Biomaterials, Genome Research Center for Biomaterials, Sichuan University, Chengdu, 610064, Sichuan, China
| | - Menghao Wang
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, Sichuan, China
| | - Donglin Gan
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, Sichuan, China
| | - Weili Deng
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, Sichuan, China
| | - Kefeng Wang
- National Engineering Research Center for Biomaterials, Genome Research Center for Biomaterials, Sichuan University, Chengdu, 610064, Sichuan, China
| | - Liming Fang
- Department of Polymer Science and Engineering, School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Kezhi Liu
- Key Lab of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, Sichuan, China
| | - Chun Wai Chan
- School of Chinese Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Youhong Tang
- Centre for NanoScale Science and Technology and School of Computer Science, Engineering and Mathematics, Flinders University, Adelaide, 5042, South Australia, Australia
| | - Lu-Tao Weng
- Department of Chemical and Biomolecular Engineering, Materials Characterisation and Preparation Facility, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Huipin Yuan
- College of Physical Science and Technology, Sichuan University, Chengdu, 610064, Sichuan, China
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194
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Shi Y, Ma C, Du Y, Yu G. Microwave-responsive polymeric core–shell microcarriers for high-efficiency controlled drug release. J Mater Chem B 2017; 5:3541-3549. [DOI: 10.1039/c7tb00235a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A general drug carrier with a unique conjugated polymer/PNIPAM core–shell structure is synthesized for high-efficiency controlled drug release under microwave irradiation.
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Affiliation(s)
- Ye Shi
- Materials Science and Engineering Program and Department of Mechanical Engineering
- Texas Materials Institute
- The University of Texas at Austin
- USA
| | - Chongbo Ma
- Materials Science and Engineering Program and Department of Mechanical Engineering
- Texas Materials Institute
- The University of Texas at Austin
- USA
- State Key Laboratory of Electroanalytical Chemistry
| | - Yan Du
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- P. R. China
| | - Guihua Yu
- Materials Science and Engineering Program and Department of Mechanical Engineering
- Texas Materials Institute
- The University of Texas at Austin
- USA
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195
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Das S, Chakraborty P, Nandi AK. Mechanically Robust Hybrid Hydrogels for Photovoltaic Applications. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/masy.201600046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Sujoy Das
- Polymer Science Unit; Indian Association for the Cultivation of Science; Jadavpur, Kolkata 700 032 India
| | - Priyadarshi Chakraborty
- Polymer Science Unit; Indian Association for the Cultivation of Science; Jadavpur, Kolkata 700 032 India
| | - Arun K. Nandi
- Polymer Science Unit; Indian Association for the Cultivation of Science; Jadavpur, Kolkata 700 032 India
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196
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Li Y, Li J, Zhao X, Yan Q, Gao Y, Hao J, Hu J, Ju Y. Triterpenoid-Based Self-Healing Supramolecular Polymer Hydrogels Formed by Host-Guest Interactions. Chemistry 2016; 22:18435-18441. [PMID: 27723149 DOI: 10.1002/chem.201603753] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Indexed: 12/13/2022]
Abstract
Pentacyclic triterpenoids, a class of naturally bioactive products having multiple functional groups, unique chiral centers, rigid skeletons, and good biocompatibility, are ideal building blocks for fabricating versatile supramolecular structures. In this research, the natural pentacyclic triterpenoid glycyrrhetinic acid (GA) was used as a guest molecule for β-cyclodextrin (β-CD) to form a GA/β-CD (1:1) inclusion complex. By means of GA and β-CD pendant groups in N,N'-dimethylacrylamide copolymers, a supramolecular polymer hydrogel can be physically cross-linked by host-guest interactions between GA and β-CD moieties. Moreover, self-healing of this hydrogel was observed and confirmed by step-strain rheological measurements, whereby the maximum storage modulus occurred at a [GA]/[β-CD] molar ratio of 1:1. Additionally, these polymers displayed outstanding biocompatibility. The introduction of a natural pentacyclic triterpenoid into a hydrogel system not only provides a biocompatible guest-host complementary GA/β-CD pair, but also makes this hydrogel an attractive candidate for tissue engineering.
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Affiliation(s)
- Ying Li
- State Key Lab of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P.R. China.,College of Chemistry and Material Science, Shandong Agricultural University, Tai'an, 271018, P. R. China
| | - Jianzuo Li
- State Key Lab of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P.R. China.,College of Chemistry and Material Science, Shandong Agricultural University, Tai'an, 271018, P. R. China
| | - Xia Zhao
- State Key Lab of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P.R. China
| | - Qiang Yan
- Department of Macromolecular Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, P.R. China
| | - Yuxia Gao
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry&Chemical Biology, Ministry of Education, Tsinghua University, Beijing, 100084, P. R. China
| | - Jie Hao
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry&Chemical Biology, Ministry of Education, Tsinghua University, Beijing, 100084, P. R. China
| | - Jun Hu
- State Key Lab of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P.R. China
| | - Yong Ju
- Department of Chemistry, Key Laboratory of Bioorganic Phosphorus Chemistry&Chemical Biology, Ministry of Education, Tsinghua University, Beijing, 100084, P. R. China
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197
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Das S, Chakraborty P, Mondal S, Shit A, Nandi AK. Enhancement of Energy Storage and Photoresponse Properties of Folic Acid-Polyaniline Hybrid Hydrogel by in Situ Growth of Ag Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2016; 8:28055-28067. [PMID: 27689537 DOI: 10.1021/acsami.6b09468] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Electrically conductive hydrogels are a fascinating class of materials that exhibit multifarious applications such as photoresponse, energy storage, etc., and the three-dimensional micro- and nanofibrillar structures of the gels are the key to those applications. Herein, we have synthesized a hybrid hydrogel based on folic acid (F) and polyaniline (PANI) in which F acts as a supramolecular cross-linker of PANI chains. The gels are mechanically robust and are characterized by field-emission scanning electron microscopy, transmission electron microscopy, and spectroscopic, rheological, and universal testing measurements. The hybrid xerogel exhibit a BET surface area 238 m2 g-1, conductivity of 0.04 S/cm, specific capacitance of 295 F/g at a current density of 1A/g, and photocurrent of ∼2 mA under white-light illumination. Silver nanoparticles (AgNPs) are in situ grown to elegantly improve the conductivity, energy storage, and photoresponse capability of the gels. The formation of AgNPs drastically improves the specific capacitances up to 646 F/g (at current density 1A/g), excellent rate capability (403 F/g at 20 A/g), and stable cycling performance with a retention ratio of 74% after 5000 cycles. The AgNPs embedded gel exhibits dramatic enhancement of photocurrent to 56 mA, and its time-dependent photoillumination corroborates faster rise and decay of current compared to those of folic acid-polyaniline hydrogel.
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Affiliation(s)
- Sujoy Das
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032, India
| | - Priyadarshi Chakraborty
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032, India
| | - Sanjoy Mondal
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032, India
| | - Arnab Shit
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032, India
| | - Arun K Nandi
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032, India
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198
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Karimi AR, Khodadadi A. Mechanically Robust 3D Nanostructure Chitosan-Based Hydrogels with Autonomic Self-Healing Properties. ACS APPLIED MATERIALS & INTERFACES 2016; 8:27254-27263. [PMID: 27643708 DOI: 10.1021/acsami.6b10375] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Fabrication of hydrogels based on chitosan (CS) with superb self-healing behavior and high mechanical and electrical properties has become a challenging and fascinating topic. Most of the conventional hydrogels lack these properties at the same time. Our objectives in this research were to synthesize, characterize, and evaluate the general properties of chitosan covalently cross-linked with zinc phthalocyanine tetra-aldehyde (ZnPcTa) framework. Our hope was to access an unprecedented self-healable three-dimensional (3D) nanostructure that would harvest the superior mechanical and electrical properties associated with chitosan. The properties of cross-linker such as the structure, steric effect, and rigidity of the molecule played important roles in determining the microstructure and properties of the resulting hydrogels. The tetra-functionalized phthalocyanines favor a dynamic Schiff-base linkage with chitosan to form a 3D porous nanostructure. Based on this strategy, the self-healing ability, as demonstrated by rheological recovery and macroscopic and microscopic observations, is introduced through dynamic covalent Schiff-base linkage between NH2 groups in CS and benzaldehyde groups at cross-linker ends. The hydrogel was characterized using FT-IR, NMR, UV/vis, and rheological measurements. In addition, cryogenic scanning electron microscopy (cryo-SEM) was employed as a technique to visualize the internal morphology of the hydrogels. Study of the surface morphology of the hydrogel showed a 3D porous nanostructure with uniform morphology. Furthermore, incorporating the conductive nanofillers, such as carbon nanotubes (CNTs), into the structure can modulate the mechanical and electrical properties of the obtained hydrogels. Interestingly, these hydrogel nanocomposites proved to have very good film-forming properties, high modulus and strength, acceptable electrical conductivity, and excellent self-healing properties at neutral pH. Such properties can be finely tuned through variation of the cross-linker and CNT concentration, and as a result these structures are promising candidates for potential applications in various fields of research.
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Affiliation(s)
- Ali Reza Karimi
- Department of Chemistry, Faculty of Science, Arak University , Arak 38156-8-8349, Iran
| | - Azam Khodadadi
- Department of Chemistry, Faculty of Science, Arak University , Arak 38156-8-8349, Iran
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199
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Affiliation(s)
- Patrick Commins
- New York University Abu Dhabi; Abu Dhabi United Arab Emirates
| | - Hideyuki Hara
- Bruker Biospin K.K.; 3-9, Moriya, Kanagawa, Yokohama Kanagawa 221-0022 Japan
| | - Panče Naumov
- New York University Abu Dhabi; Abu Dhabi United Arab Emirates
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200
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Commins P, Hara H, Naumov P. Self-Healing Molecular Crystals. Angew Chem Int Ed Engl 2016; 55:13028-13032. [DOI: 10.1002/anie.201606003] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Patrick Commins
- New York University Abu Dhabi; Abu Dhabi United Arab Emirates
| | - Hideyuki Hara
- Bruker Biospin K.K.; 3-9, Moriya, Kanagawa, Yokohama Kanagawa 221-0022 Japan
| | - Panče Naumov
- New York University Abu Dhabi; Abu Dhabi United Arab Emirates
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