1
|
Yin W, Yang C, Liu D, Cha S, Cai L, Ye G, Song X, Zhang J, Qiu X. Mussel shell-derived pro-regenerative scaffold with conductive porous multi-scale-patterned microenvironment for spinal cord injury repair. Biomed Mater 2024; 19:035041. [PMID: 38626779 DOI: 10.1088/1748-605x/ad3f63] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 04/16/2024] [Indexed: 05/01/2024]
Abstract
It is well-established that multi-scale porous scaffolds can guide axonal growth and facilitate functional restoration after spinal cord injury (SCI). In this study, we developed a novel mussel shell-inspired conductive scaffold for SCI repair with ease of production, multi-scale porous structure, high flexibility, and excellent biocompatibility. By utilizing the reducing properties of polydopamine, non-conductive graphene oxide (GO) was converted into conductive reduced graphene oxide (rGO) and crosslinkedin situwithin the mussel shells.In vitroexperiments confirmed that this multi-scale porous Shell@PDA-GO could serve as structural cues for enhancing cell adhesion, differentiation, and maturation, as well as promoting the electrophysiological development of hippocampal neurons. After transplantation at the injury sites, the Shell@PDA-GO provided a pro-regenerative microenvironment, promoting endogenous neurogenesis, triggering neovascularization, and relieving glial fibrosis formation. Interestingly, the Shell@PDA-GO could induce the release of endogenous growth factors (NGF and NT-3), resulting in the complete regeneration of nerve fibers at 12 weeks. This work provides a feasible strategy for the exploration of conductive multi-scale patterned scaffold to repair SCI.
Collapse
Affiliation(s)
- Wenming Yin
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, People's Republic of China
| | - Chang Yang
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, People's Republic of China
- Central Laboratory, The Fifth Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong 510910, People's Republic of China
| | - Dan Liu
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, People's Republic of China
| | - Shuhan Cha
- Department of Anatomy, Neuroscience Laboratory for Cognitive and Developmental Disorders, Medical College of Jinan University, Guangzhou 510630, People's Republic of China
| | - Liu Cai
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, People's Republic of China
| | - Genlan Ye
- Central Laboratory, The Fifth Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong 510910, People's Republic of China
| | - Xiaoping Song
- Central Laboratory, The Fifth Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong 510910, People's Republic of China
| | - Jifeng Zhang
- Department of Anatomy, Neuroscience Laboratory for Cognitive and Developmental Disorders, Medical College of Jinan University, Guangzhou 510630, People's Republic of China
| | - Xiaozhong Qiu
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering, School of Basic Medical Sciences, Southern Medical University, Guangzhou, Guangdong 510515, People's Republic of China
| |
Collapse
|
2
|
Xiong W, Liu H, Yang S, Liu Y, Fu T. Biomimetic synthesis of polydopamine-graphene oxide/hydroxyapatite for efficient and fast uranium(VI) capture from aqueous solution. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:114569-114581. [PMID: 37861826 DOI: 10.1007/s11356-023-30321-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 10/03/2023] [Indexed: 10/21/2023]
Abstract
A novel and efficient mesoporous nano-absorbent for U(VI) removal was developed through an environment-friendly route by inducing the biomimetic mineralization of hydroxyapatite (HAP) on the bioinspired surface of polydopamine-graphene oxide (PDA-GO). PDA-GO/HAP exhibited the greatly rapid and efficient U(VI) removal within 2 min, and much higher U(VI) adsorption capacity of 433.07 mg·g-1 than that of GO and PDA-GO. The enhanced adsorption capacity was mainly attributed to the synergistic effect of O-H, -C=N-, and PO43- functional groups and the incorporation of uranyl ions by the formation of a new phase (chernikovite, H2(UO2)2(PO4)2·8H2O). The adsorption process of U(VI) fitted well with pseudo-second-order kinetic and Langmuir isotherm model. Moreover, PDA-GO/HAP showed a high U(VI) adsorption capacity in a broad range of pH values and owned good thermal stability. PDA-GO/HAP with various excellent properties made it a greatly promising adsorbent for extracting uranium. Our work developed a good strategy for constructing fast and efficient uranium-adsorptive biomimetic materials.
Collapse
Affiliation(s)
- Weijie Xiong
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China
| | - Hongjuan Liu
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China.
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, People's Republic of China.
| | - Shiming Yang
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China
| | - Yingjiu Liu
- Hunan Province Key Laboratory of Pollution Control and Resources Reuse Technology, University of South China, Hengyang, 421001, People's Republic of China
| | - Tianyu Fu
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China
| |
Collapse
|
3
|
Kim C, Park JH, Ko J, Lee S, Kwon RG, Lee S, Lee H, Kim JY, Song HJ. Room temperature processed protective layer for printed silver electrodes. RSC Adv 2023; 13:20557-20564. [PMID: 37435372 PMCID: PMC10331791 DOI: 10.1039/d3ra02212a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 06/27/2023] [Indexed: 07/13/2023] Open
Abstract
Low-temperature processed printed silver electrodes pave the way for electrical connections in flexible substrates with reduced energy consumption. Despite their excellent performance and simple process, printed silver electrodes' poor stability limits their applications. This study demonstrates a transparent protective layer without thermal annealing for printed silver electrodes, which maintains its electrical properties for a long period of time. A fluoropolymer, specifically a cyclic transparent optical polymer (CYTOP), was used as a protective layer for silver. The CYTOP is room temperature processable and chemically stable against carboxyl acid. The introduction of the CYTOP film on the printed silver electrodes mitigates the chemical reaction between silver and carboxyl acid, thereby elongating its lifetime. Under heated acetic acid, the printed silver electrodes with a CYTOP protective layer maintained their initial resistance for up to 300 hours, while the electrodes without a protective layer were damaged within a few hours. A microscopic image shows that the protective layer enables printed electrodes to maintain their shape without damage. Hence, the protective layer guarantees the accurate and reliable performance of electronic devices with printed electrodes under actual operating conditions. This research will contribute to designing chemically reliable flexible devices in the near future.
Collapse
Affiliation(s)
- Chungil Kim
- Department of Safety Engineering, Seoul National University of Science and Technology Seoul 01811 Korea
| | - Jin Ho Park
- Department of Semiconductor Engineering, Gyeongsang National University Jinju 52828 Korea
| | - Jaehwan Ko
- Department of Safety Engineering, Seoul National University of Science and Technology Seoul 01811 Korea
| | - Suwoon Lee
- Department of Safety Engineering, Seoul National University of Science and Technology Seoul 01811 Korea
| | - Ri Gyeong Kwon
- Department of Semiconductor Engineering, Gyeongsang National University Jinju 52828 Korea
| | - Subin Lee
- Department of Safety Engineering, Seoul National University of Science and Technology Seoul 01811 Korea
| | - Hangil Lee
- Department of Safety Engineering, Seoul National University of Science and Technology Seoul 01811 Korea
| | - Jun Young Kim
- Department of Semiconductor Engineering, Gyeongsang National University Jinju 52828 Korea
| | - Hyung-Jun Song
- Department of Safety Engineering, Seoul National University of Science and Technology Seoul 01811 Korea
| |
Collapse
|
4
|
Zhang XX, Xue ZH, Wang Z, Yan QL. Thermal Reactivity of High-Density Hybrid Hexahydro-1,3,5-trinitro-1,3,5-triazine Crystals Prepared by a Microfluidic Crystallization Method. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:7503-7513. [PMID: 37186958 DOI: 10.1021/acs.langmuir.3c01003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
In this paper, the two-dimensional (2D) high nitrogen triaminoguanidine-glyoxal polymer (TAGP) has been used to dope hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) crystals using a microfluidic crystallization method. A series of constraint TAGP-doped RDX crystals using a microfluidic mixer (so-called controlled qy-RDX) with higher bulk density and better thermal stability have been obtained as a result of the granulometric gradation. The crystal structure and thermal reactivity properties of qy-RDX are largely affected by the mixing speed of the solvent and antisolvent. In particular, the bulk density of qy-RDX could be slightly changed in the range from 1.78 to 1.85 g cm-3 as a result of varied mixing states. The obtained qy-RDX crystals have better thermal stability than pristine RDX, showing a higher exothermic peak temperature and an endothermic peak temperature with a higher heat release. Ea for thermal decomposition of controlled qy-RDX is 105.3 kJ mol-1, which is 20 kJ mol-1 lower than that of pure RDX. The controlled qy-RDX samples with lower Ea followed the random 2D nucleation and nucleus growth (A2) model, whereas controlled qy-RDX with higher Ea (122.8 and 122.7 kJ mol-1) following some complex model between A2 and the random chain scission (L2) model.
Collapse
Affiliation(s)
- Xue-Xue Zhang
- Science and Technology on Combustion, Internal Flow and Thermo-Structure Laboratory, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, People's Republic of China
| | - Zhi-Hua Xue
- Science and Technology on Combustion, Internal Flow and Thermo-Structure Laboratory, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, People's Republic of China
| | - Zikangping Wang
- Science and Technology on Combustion, Internal Flow and Thermo-Structure Laboratory, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, People's Republic of China
| | - Qi-Long Yan
- Science and Technology on Combustion, Internal Flow and Thermo-Structure Laboratory, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, People's Republic of China
| |
Collapse
|
5
|
Hassabo AG, Reda EM, Ghazal H, Othman HA. Synthesis of AgNPs and ZnONPs using Tea Leaves Extract and their Utilization to Improve Dyeability, Printability and Functionality of Cotton and Wool Fabrics. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
|
6
|
Wang G, Zhao Y, Yang F, Zhang Y, Zhou M, Ji G. Multifunctional Integrated Transparent Film for Efficient Electromagnetic Protection. NANO-MICRO LETTERS 2022; 14:65. [PMID: 35199232 PMCID: PMC8866598 DOI: 10.1007/s40820-022-00810-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 01/18/2022] [Indexed: 05/29/2023]
Abstract
Silver nanowire (Ag NW) has been considered as the promising building block for the fabrication of transparent electromagnetic interference (EMI) shielding films. However, the practical application of Ag NW-based EMI shielding films has been restricted due to the unsatisfactory stability of Ag NW. Herein, we proposed a reduced graphene oxide (rGO) decorated Ag NW film, which realizes a seamless integration of optical transparency, highly efficient EMI shielding, reliable durability and stability. The Ag NW constructs a highly transparent and conductive network, and the rGO provides additional conductive path, showing a superior EMI shielding effectiveness (SE) of 33.62 dB at transmittance of 81.9%. In addition, the top rGO layer enables the hybrid film with reliable durability and chemical stability, which can maintain 96% and 90% EMI SE after 1000 times bending cycles at radius of 2 mm and exposure in air for 80 days. Furthermore, the rGO/Ag NW films also possess fast thermal response and heating stability, making them highly applicable in wearable devices. The synergy of Ag NW and rGO grants the hybrid EMI shielding film multiple desired functions and meanwhile overcomes the shortcomings of Ag NW. This work provides a reference for preparing multifunctional integrated transparent EMI shielding film.
Collapse
Affiliation(s)
- Gehuan Wang
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, People's Republic of China
| | - Yue Zhao
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, People's Republic of China
| | - Feng Yang
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, People's Republic of China
| | - Yi Zhang
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, People's Republic of China
| | - Ming Zhou
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, People's Republic of China
| | - Guangbin Ji
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, People's Republic of China.
| |
Collapse
|
7
|
Liu X, Miao J, Fan Q, Zhang W, Zuo X, Tian M, Zhu S, Zhang X, Qu L. Smart Textile Based on 3D Stretchable Silver Nanowires/MXene Conductive Networks for Personal Healthcare and Thermal Management. ACS APPLIED MATERIALS & INTERFACES 2021; 13:56607-56619. [PMID: 34786929 DOI: 10.1021/acsami.1c18828] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Wearable electronics have enriched daily lives by providing smart functions as well as monitoring body health conditions. However, the realization of wearable electronics with personal healthcare and thermal comfort management of the human body is still a great challenge. Furthermore, manufacturing such on-skin wearable electronics on traditional thin-film substrates results in limited gas permeability and inflammation. Herein, we proposed a personal healthcare and thermal management smart textile with a three-dimensional (3D) interconnected conductive network, formed by silver nanowires (AgNWs) bridging lamellar structured transition-metal carbide/carbonitride (MXene) nanosheets deposited on nonwoven fabrics. Benefiting from the interconnected conductive network synergistic effect of one-dimensional (1D) AgNWs bridging two-dimensional (2D) MXene, the strain sensor exhibits excellent durability (>1500 stretching cycles) and high sensitivity (gauge factor (GF) = 1085) with a wide strain range limit (∼100%), and the details of human body activities can be accurately recognized and monitored. Moreover, thanks to the excellent Joule heating and photothermal effect endowed by AgNWs and MXene, the multifunctional smart textile with direct temperature visualization and solar-powered temperature regulation functions was successfully developed, after further combination of thermochromic and phase-change functional layers, respectively. The smart textiles with a stretchable AgNW-MXene 3D conductive network hold great promise for next-generation personal healthcare and thermal management wearable systems.
Collapse
Affiliation(s)
- Xuhua Liu
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, P. R. China
| | - Jinlei Miao
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, P. R. China
| | - Qiang Fan
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, P. R. China
| | - Wenxiao Zhang
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, P. R. China
| | - Xingwei Zuo
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, P. R. China
| | - Mingwei Tian
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, P. R. China
| | - Shifeng Zhu
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, P. R. China
| | - Xueji Zhang
- School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, Guangdong 518060, P. R. China
| | - Lijun Qu
- Research Center for Intelligent and Wearable Technology, College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center for Eco-Textiles of Shandong Province, Qingdao University, Qingdao, Shandong 266071, P. R. China
| |
Collapse
|
8
|
|
9
|
Synthesis of different nanometals using Citrus Sinensis peel (orange peel) waste extraction for valuable functionalization of cotton fabric. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01881-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
10
|
Li XP, Qu KY, Zhou B, Zhang F, Wang YY, Abodunrin OD, Zhu Z, Huang NP. Electrical stimulation of neonatal rat cardiomyocytes using conductive polydopamine-reduced graphene oxide-hybrid hydrogels for constructing cardiac microtissues. Colloids Surf B Biointerfaces 2021; 205:111844. [PMID: 34015732 DOI: 10.1016/j.colsurfb.2021.111844] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/09/2021] [Accepted: 05/10/2021] [Indexed: 12/13/2022]
Abstract
The development of diversified biomaterials in tissue engineering has been promoted by growing research into carbon-based nanomaterials. Usually, ideal scaffold materials should possess properties similar to the extracellular matrix of natural myocardial tissue. In this study, dopamine-reduced graphene oxide (GO), was prepared and doped into gelatin methacrylate (GelMA) hydrogels, resulting in novel conductive and mechanical properties for controlling cell growth. Cardiomyocytes (CMs) cultured on PDA-rGO-incorporated hydrogels (GelMA-PDA-rGO) had greater cytocompatibility than those cultured on GelMA hydrogels, as evidenced by higher cell survival rates and up-regulation of cardiac-relevant proteins. Finally, electrical stimulation was applied to facilitate the maturation of CMs which was seeded on different hydrogels. The findings revealed that electrical stimulation of conductive hybrid hydrogel scaffolds improved the orientational order parameter of sarcomeres (OOP). In addition, propagation of intercellular pacing signals, which improves the expression of gap junction proteins was noticed, likewise calcium handling capacity was present in conductive hybrid hydrogels compared to those in pure GelMA group. This study has shown that the combination of GelMA-PDA-rGO based conductive hydrogels and electrical stimulation possessed synergistic effects for engineering a more functional and mature myocardium layer as well as further application in drug screening and disease modeling in vitro.
Collapse
Affiliation(s)
- Xiao-Pei Li
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China
| | - Kai-Yun Qu
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China
| | - Bin Zhou
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China
| | - Feng Zhang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China
| | - Yin-Ying Wang
- Key Laboratory of MEMS of Ministry of Education, School of Electronic Science and Engineering, Southeast University, Nanjing, Jiangsu 210096, China
| | - Oluwatosin David Abodunrin
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China
| | - Zhen Zhu
- Key Laboratory of MEMS of Ministry of Education, School of Electronic Science and Engineering, Southeast University, Nanjing, Jiangsu 210096, China
| | - Ning-Ping Huang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China.
| |
Collapse
|
11
|
Wan W, Yang X, Du M, Shi Y, Wang J, Wang L, Chin Y, Liu H, Zhang P. One-dimensional ternary Ag@Ag2S@C nanocable with plasmon-enhanced photocatalytic performance. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111531] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
12
|
Yang Z, Huang R, Zheng B, Guo W, Li C, He W, Wei Y, Du Y, Wang H, Wu D, Wang H. Highly Stretchable, Adhesive, Biocompatible, and Antibacterial Hydrogel Dressings for Wound Healing. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2003627. [PMID: 33898178 PMCID: PMC8061386 DOI: 10.1002/advs.202003627] [Citation(s) in RCA: 221] [Impact Index Per Article: 73.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 11/24/2020] [Indexed: 05/04/2023]
Abstract
Treatment of wounds in special areas is challenging due to inevitable movements and difficult fixation. Common cotton gauze suffers from incomplete joint surface coverage, confinement of joint movement, lack of antibacterial function, and frequent replacements. Hydrogels have been considered as good candidates for wound dressing because of their good flexibility and biocompatibility. Nevertheless, the adhesive, mechanical, and antibacterial properties of conventional hydrogels are not satisfactory. Herein, cationic polyelectrolyte brushes grafted from bacterial cellulose (BC) nanofibers are introduced into polydopamine/polyacrylamide hydrogels. The 1D polymer brushes have rigid BC backbones to enhance mechanical property of hydrogels, realizing high tensile strength (21-51 kPa), large tensile strain (899-1047%), and ideal compressive property. Positively charged quaternary ammonium groups of tethered polymer brushes provide long-lasting antibacterial property to hydrogels and promote crawling and proliferation of negatively charged epidermis cells. Moreover, the hydrogels are rich in catechol groups and capable of adhering to various surfaces, meeting adhesive demand of large movement for special areas. With the above merits, the hydrogels demonstrate less inflammatory response and faster healing speed for in vivo wound healing on rats. Therefore, the multifunctional hydrogels show stable covering, little displacement, long-lasting antibacteria, and fast wound healing, demonstrating promise in wound dressing.
Collapse
Affiliation(s)
- Zifeng Yang
- Department of Colorectal SurgeryThe Sixth Affiliated Hospital, Sun Yat‐sen University, Guangdong Institute of GastroenterologyGuangdong Provincial Key Laboratory of Colorectal and Pelvic Floor DiseasesGuangzhou510655P. R. China
| | - Rongkang Huang
- Department of Colorectal SurgeryThe Sixth Affiliated Hospital, Sun Yat‐sen University, Guangdong Institute of GastroenterologyGuangdong Provincial Key Laboratory of Colorectal and Pelvic Floor DiseasesGuangzhou510655P. R. China
| | - Bingna Zheng
- PCFM Lab and GDHPRC LabSchool of ChemistrySun Yat‐sen UniversityGuangzhou510275P. R. China
| | - Wentai Guo
- Department of Colorectal SurgeryThe Sixth Affiliated Hospital, Sun Yat‐sen University, Guangdong Institute of GastroenterologyGuangdong Provincial Key Laboratory of Colorectal and Pelvic Floor DiseasesGuangzhou510655P. R. China
| | - Chuangkun Li
- Department of Colorectal SurgeryThe Sixth Affiliated Hospital, Sun Yat‐sen University, Guangdong Institute of GastroenterologyGuangdong Provincial Key Laboratory of Colorectal and Pelvic Floor DiseasesGuangzhou510655P. R. China
| | - Wenyi He
- PCFM Lab and GDHPRC LabSchool of ChemistrySun Yat‐sen UniversityGuangzhou510275P. R. China
| | - Yingqi Wei
- Department of Colorectal SurgeryThe Sixth Affiliated Hospital, Sun Yat‐sen University, Guangdong Institute of GastroenterologyGuangdong Provincial Key Laboratory of Colorectal and Pelvic Floor DiseasesGuangzhou510655P. R. China
| | - Yang Du
- Department of Colorectal SurgeryThe Sixth Affiliated Hospital, Sun Yat‐sen University, Guangdong Institute of GastroenterologyGuangdong Provincial Key Laboratory of Colorectal and Pelvic Floor DiseasesGuangzhou510655P. R. China
| | - Huaiming Wang
- Department of Colorectal SurgeryThe Sixth Affiliated Hospital, Sun Yat‐sen University, Guangdong Institute of GastroenterologyGuangdong Provincial Key Laboratory of Colorectal and Pelvic Floor DiseasesGuangzhou510655P. R. China
| | - Dingcai Wu
- PCFM Lab and GDHPRC LabSchool of ChemistrySun Yat‐sen UniversityGuangzhou510275P. R. China
| | - Hui Wang
- Department of Colorectal SurgeryThe Sixth Affiliated Hospital, Sun Yat‐sen University, Guangdong Institute of GastroenterologyGuangdong Provincial Key Laboratory of Colorectal and Pelvic Floor DiseasesGuangzhou510655P. R. China
| |
Collapse
|
13
|
Utech T, Pötschke P, Simon F, Janke A, Kettner H, Paiva M, Zimmerer C. Bio-inspired deposition of electrochemically exfoliated graphene layers for electrical resistance heating applications. NANO EXPRESS 2020. [DOI: 10.1088/2632-959x/abce05] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Electrochemically exfoliated graphene (eeG) layers possess a variety of potential applications, e.g. as susceptor material for contactless induction heating in dynamic electro-magnetic fields, and as flexible and transparent electrode or resistivity heating elements. Spray coating of eeG dispersions was investigated in detail as a simple and fast method to deposit both, thin conducting layers and ring structures on polycarbonate substrates. The spray coating process was examined by systematic variation of dispersion concentration and volume applied to heated substrates. Properties of the obtained layers were characterized by UV-VIS spectroscopy, SEM and Confocal Scanning Microscopy. Electrical conductivity of eeG ring structures was measured using micro-four-point measurements. Modification of eeG with poly(dopamine) and post-thermal treatment yields in the reduction of the oxidized graphene proportion, an increase in electrical conductivity, and mechanical stabilization of the deposited thin layers. The chemical composition of modified eeG layer was analyzed via x-ray photoelectron spectroscopy pointing to the reductive behavior of poly(dopamine). Application oriented experiments demonstrate the direct electric current heating (Joule-Heating) effect of spray-coated eeG layers.
Collapse
|
14
|
Lee SW, Jung HG, Kim I, Lee D, Kim W, Kim SH, Lee JH, Park J, Lee JH, Lee G, Yoon DS. Highly Conductive and Flexible Dopamine-Graphene Hybrid Electronic Textile Yarn for Sensitive and Selective NO 2 Detection. ACS APPLIED MATERIALS & INTERFACES 2020; 12:46629-46638. [PMID: 32914616 DOI: 10.1021/acsami.0c11435] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Graphene-based electronic textile (e-textile) gas sensors have been developed for detecting hazardous NO2 gas. For the e-textile gas sensor, electrical conductivity is a critical factor because it directly affects its sensitivity. To obtain a highly conductive e-textile, biomolecules have been used for gluing the graphene to the textile surface, though there remain areas to improve, such as poor conductivity and flexibility. Herein, we have developed a dopamine-graphene hybrid electronic textile yarn (DGY) where the dopamine is used as a bio-inspired adhesive to attach graphene to the surface of yarns. The DGY shows improved electrical conductivity (∼40 times) compared to conventional graphene-based e-textile yarns with no glue. Moreover, it exhibited improved sensing performance in terms of short response time (∼2 min), high sensitivity (0.02 μA/ppm), and selectivity toward NO2. The mechanical flexibility and durability of the DGY were examined through a 1000-cycle bending test. For a practical application, the DGY was attempted to detect the NOx emitted from vehicles, including gasoline, diesel, and fuel cell electric vehicles. Our results demonstrated that the DGYs-as a graphene-based e-textile gas sensor for detecting NO2-are simple to fabricate, cheap, disposable, and mechanically stable.
Collapse
Affiliation(s)
- Sang Won Lee
- School of Biomedical Engineering, Korea University, Seoul 02841, South Korea
| | - Hyo Gi Jung
- School of Biomedical Engineering, Korea University, Seoul 02841, South Korea
| | - Insu Kim
- School of Biomedical Engineering, Korea University, Seoul 02841, South Korea
| | - Dongtak Lee
- School of Biomedical Engineering, Korea University, Seoul 02841, South Korea
| | - Woong Kim
- Department of Control and Instrumentation Engineering, Korea University, Sejong 30019, South Korea
| | - Sang Hun Kim
- Department of Materials Science and Engineering, Korea University, Seoul 02841, South Korea
| | - Jong-Heun Lee
- Department of Materials Science and Engineering, Korea University, Seoul 02841, South Korea
| | - Jinsung Park
- Department of Control and Instrumentation Engineering, Korea University, Sejong 30019, South Korea
| | - Jeong Hoon Lee
- Department of Electrical Engineering, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Gyudo Lee
- Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, South Korea
| | - Dae Sung Yoon
- School of Biomedical Engineering, Korea University, Seoul 02841, South Korea
| |
Collapse
|
15
|
Ross N, Civilized Nqakala N. Electrochemical Determination of Hydrogen Peroxide by a Nonenzymatic Catalytically Enhanced Silver-Iron (III) Oxide/Polyoxometalate/Reduced Graphene Oxide Modified Glassy Carbon Electrode. ANAL LETT 2020. [DOI: 10.1080/00032719.2020.1745223] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Natasha Ross
- SensorLab, Department of Chemistry, University of Western Cape, Bellville, Cape Town, South Africa
| | - Noniko Civilized Nqakala
- SensorLab, Department of Chemistry, University of Western Cape, Bellville, Cape Town, South Africa
| |
Collapse
|
16
|
Mahnaz F, Mostafa-Al-Momin M, Rubel M, Ferdous M, Azam MS. Mussel-inspired immobilization of Au on bare and graphene-wrapped Ni nanoparticles toward highly efficient and easily recyclable catalysts. RSC Adv 2019; 9:30358-30369. [PMID: 35530224 PMCID: PMC9072119 DOI: 10.1039/c9ra05736f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 09/16/2019] [Indexed: 11/21/2022] Open
Abstract
Bimetallic nanocatalysts have been gaining huge research attention in the heterogeneous catalysis community recently owing to their tunable properties and multifunctional characteristics. In this work, we fabricated a bimetallic core-shell nanocomposite catalyst by employing a mussel-inspired strategy for immobilizing gold nanoparticles (AuNP) on the surface of nickel nanoparticles (NiNP). NiNPs obtained from the reduction of Ni(ii) were first coated with polydopamine to provide the anchoring sites towards the robust immobilization of AuNPs. The as-synthesized nanocomposite (Ni-PD-Au) exhibited outstanding catalytic activity while reducing methylene blue (MB) and 4-nitrophenol (4-NP) yielding rate constants 13.11 min-1 and 4.21 min-1, respectively, outperforming the catalytic efficiency of its monometallic counterparts and other similar reported catalysts by large margins. The superior catalytic efficiency of the Ni-PD-Au was attributed to the well-known synergistic effect, which was experimentally investigated and compared with prior reports. Similar bio-inspired immobilization of AuNPs was also applied on graphene-wrapped NiNPs (Ni-G) instead of bare NiNPs to synthesize another composite catalyst (Ni-G-PD-Au), which yet again exhibited synergistic catalytic activity. A comparative study between the two nanocomposites suggested that Ni-PD-Au excelled in catalytic activity but Ni-G-PD-Au provided noteworthy stability showing ∼100% efficiency over 17 repeated cycles. However, along with excellent synergistic performance, both nanocomposites demonstrated high magnetization and thermal stability up to 350 °C ascertaining their easy separation and sustainability for high-temperature applications, respectively.
Collapse
Affiliation(s)
- Fatima Mahnaz
- Department of Chemistry, Bangladesh University of Engineering and Technology (BUET) Dhaka 1000 Bangladesh
- Department of Chemical Engineering, Bangladesh University of Engineering and Technology (BUET) Dhaka 1000 Bangladesh
| | - Mohammad Mostafa-Al-Momin
- Department of Chemistry, Bangladesh University of Engineering and Technology (BUET) Dhaka 1000 Bangladesh
| | - Md Rubel
- Department of Chemistry, Bangladesh University of Engineering and Technology (BUET) Dhaka 1000 Bangladesh
| | - Md Ferdous
- Department of Chemistry, Bangladesh University of Engineering and Technology (BUET) Dhaka 1000 Bangladesh
| | - Md Shafiul Azam
- Department of Chemistry, Bangladesh University of Engineering and Technology (BUET) Dhaka 1000 Bangladesh
| |
Collapse
|
17
|
Fabrication and Characterization of Novel Shape-Stabilized Phase Change Materials Based on P(TDA- co-HDA)/GO Composites. Polymers (Basel) 2019; 11:polym11071113. [PMID: 31266181 PMCID: PMC6680668 DOI: 10.3390/polym11071113] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 06/13/2019] [Accepted: 06/23/2019] [Indexed: 11/22/2022] Open
Abstract
Shape-stabilized phase change materials (SPCMs) are green, reusable energy storage materials. Because the melting temperature of n-alkyl acrylate copolymer is adjustable by controlling the side-chain length, the appropriate melting temperature can be achieved. Poly(tetradecyl acrylate-co-hexadecyl acrylate) (P(TDA-co-HDA)) with a molar ratio of 1:1 and SPCMs were fabricated via an atom transfer radical polymerization (ATRP) method and a solution blending method with P(TDA-co-HDA) as a thermal storage material and graphene oxide (GO) as a supporting substance. In this composite, an SPCM was achieved, which absorbed heat at 29.9 °C and released it at 12.1 °C with a heat storage capacity of 70 J/g at a mass ratio of GO of 10%. The material retained its shape without any leakage at 60 °C, which was much higher than that of the melting temperature of P(TDA-co-HDA). The SPCMs exhibited good crystallization behaviors and excellent thermal reliabilities after 100 thermal cycles. The thermal properties of the P(TDA-co-HDA)/GO composite PCMs with various GO loadings were also investigated. The novel shape-stabilized PCMs fabricated in this study have potential uses in thermal energy storage applications.
Collapse
|
18
|
Wang Y, Yang X, Du D, Zhao Y, Zhang X. New Insights into Flexible Transparent Conductive Silver Nanowires Films. Int J Mol Sci 2019; 20:E2803. [PMID: 31181732 PMCID: PMC6600668 DOI: 10.3390/ijms20112803] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 05/24/2019] [Accepted: 05/30/2019] [Indexed: 11/16/2022] Open
Abstract
Flexible transparent conductive films (FTCFs) composed of silver nanowires (AgNWs) have become an important research direction because of their potential in flexible electronic devices. The optoelectronic properties of FTCFs composed of AgNWs of different lengths were evaluated in this study. AgNWs, with an average diameter of about 25 nm and length of 15.49-3.92 μm were obtained by a sonication-induced scission process. AgNW-FTCFs were prepared on polyethylene terephthalate substrates using a Meyer bar and then dried in the ambient environment. The sheet resistance, non-uniformity factor of the sheet resistance, the root mean square roughness, and haze of the FTCFs increased as the length of AgNWs decreased. The transmittance of the films increased slightly as the length of AgNWs increased. AgNWs with a length of 15.49 μm provided an AgNW-FTCF with excellent properties including haze of 0.95%, transmittance of 93.42%, and sheet resistance of 80.15 Ω∙sq-1, without any additional post-treatment of the film. This work investigating the dependence of the optoelectronic properties of AgNW-FTCFs on AgNW length provides design guidelines for development of AgNW-FTCFs.
Collapse
Affiliation(s)
- Yuehui Wang
- Department of Materials and Food, University of Electronic Science and Technology of China Zhongshan Institute, Zhongshan 528402, China.
| | - Xing Yang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Dexi Du
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Yuzhen Zhao
- Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.
| | - Xianfeng Zhang
- Department of Materials and Food, University of Electronic Science and Technology of China Zhongshan Institute, Zhongshan 528402, China.
| |
Collapse
|
19
|
Ma L, Zhou L, He Y, Wang L, Huang Z, Jiang Y, Gao J. Hierarchical nanocomposites with an N-doped carbon shell and bimetal core: Novel enzyme nanocarriers for electrochemical pesticide detection. Biosens Bioelectron 2018; 121:166-173. [DOI: 10.1016/j.bios.2018.08.038] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Revised: 07/19/2018] [Accepted: 08/16/2018] [Indexed: 12/28/2022]
|
20
|
Zhang Z, Si T, Liu J. Controllable assembly of a hierarchical multiscale architecture based on silver nanoparticle grids/nanowires for flexible organic solar cells. NANOTECHNOLOGY 2018; 29:415603. [PMID: 30058556 DOI: 10.1088/1361-6528/aad6aa] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this work, an effective and facile strategy was developed to assemble a flexible hierarchical multiscale architecture by incorporating microscale silver nanoparticles (AgNPs) grids into random silver nanowires (AgNWs) networks combined with a room-temperature chemical sintering mechanism. The microscale AgNPs grids was fabricated by assemble AgNPs into a series of twin lines directly on a hydrophilic PET substrate based on coffee-ring effect with ink-jet printing technique. By regulating the assembly architecture, a flexible hierarchical multiscale conductor based on AgNPs grids/AgNWs was successfully fabricated and demonstrated a high transmittance of 87.5%, low sheet resistance of 16.5 Ω/sq and excellent mechanical flexibility. The hierarchical multiscale architecture was fairly favorable to efficiently collect free charges among the gaps in the AgNWs network, as well as to enhance the stability of conductivity by creating continuous conduction pathways. As an anode electrode in a flexible organic solar cell, the hierarchical multiscale AgNPs grids/AgNWs conductor demonstrated a more power photoelectric conversion efficiency, which was even superior to the corresponding properties of the ITO network at a similar transmittance. This simple, low-cost and nonlithographic solution-based approach would further enhance current fabrication approaches to create patterned microstructures, and have great potential to fabricate multifarious functional patterns in flexible electronic devices.
Collapse
Affiliation(s)
- Zhiliang Zhang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, 250353, People's Republic of China. Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Science, Beijing 100190, People's Republic of China
| | | | | |
Collapse
|
21
|
Kim IH, Yun T, Kim JE, Yu H, Sasikala SP, Lee KE, Koo SH, Hwang H, Jung HJ, Park JY, Jeong HS, Kim SO. Mussel-Inspired Defect Engineering of Graphene Liquid Crystalline Fibers for Synergistic Enhancement of Mechanical Strength and Electrical Conductivity. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1803267. [PMID: 30088842 DOI: 10.1002/adma.201803267] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 06/25/2018] [Indexed: 06/08/2023]
Abstract
Inspired by mussel adhesive polydopamine (PDA), effective reinforcement of graphene-based liquid crystalline fibers to attain high mechanical and electrical properties simultaneously is presented. The two-step defect engineering, relying on bioinspired surface polymerization and subsequent solution infiltration of PDA, addresses the intrinsic limitation of graphene fibers arising from the folding and wrinkling of graphene layers during the fiber-spinning process. For a clear understanding of the mechanism of PDA-induced defect engineering, interfacial adhesion between graphene oxide sheets is straightforwardly analyzed by the atomic force microscopy pull-off test. Subsequently, PDA could be converted into an N-doped graphitic layer within the fiber structure by a mild thermal treatment such that mechanically strong fibers could be obtained without sacrificing electrical conductivity. Bioinspired graphene-based fiber holds great promise for a wide range of applications, including flexible electronics, multifunctional textiles, and wearable sensors.
Collapse
Affiliation(s)
- In Ho Kim
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Taeyeong Yun
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Jae-Eun Kim
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
- Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Hayoung Yu
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Jeonrabuk-do, 55324, Republic of Korea
| | - Suchithra Padmajan Sasikala
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Kyung Eun Lee
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Sung Hwan Koo
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Hoseong Hwang
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Hong Ju Jung
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Jeong Young Park
- Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS), Daejeon, 34141, Republic of Korea
- Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| | - Hyeon Su Jeong
- Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST), Jeonrabuk-do, 55324, Republic of Korea
| | - Sang Ouk Kim
- National Creative Research Initiative Center for Multi-Dimensional Directed Nanoscale Assembly, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea
| |
Collapse
|
22
|
Liu T, Lee B, Kim BG, Lee MJ, Park J, Lee SW. In Situ Polymerization of Dopamine on Graphene Framework for Charge Storage Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1801236. [PMID: 30063293 DOI: 10.1002/smll.201801236] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 06/12/2018] [Indexed: 06/08/2023]
Abstract
Polydopamine, a functional coating material, is redox active as cathode materials for both Li- and Na-ion batteries or hybrid capacitors. Here, a polydopamine coating onto 3D graphene framework is introduced through a simple hydrothermal process, during which graphene oxide serves not only as an oxidant for assisting the polymerization of dopamine, but also as a template for the conformal growth of polydopamine. High-density films are fabricated by compressing the polydopamine-coated graphene aerogels, which can be directly used as free-standing and flexible cathodes in both Li- and Na-cells. The compact electrodes deliver high capacities of ≈230 mAh g-1 in Li-cells and ≈211 mAh g-1 in Na-cells based on the total mass of electrodes. These compact electrodes also exhibit exceptional cycling stability and high rate performance due to the unique structure in which polydopamine is uniformly coated on the 3D structured graphene.
Collapse
Affiliation(s)
- Tianyuan Liu
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Byeongyong Lee
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Byoung Gak Kim
- Division of Advanced Materials, Korea Research Institute of Chemical Technology, Gaejeongro 141, Daejeon, 305-600, South Korea
| | - Michael J Lee
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Jinho Park
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Seung Woo Lee
- G. W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| |
Collapse
|
23
|
Miao J, Liu H, Li Y, Zhang X. Biodegradable Transparent Substrate Based on Edible Starch-Chitosan Embedded with Nature-Inspired Three-Dimensionally Interconnected Conductive Nanocomposites for Wearable Green Electronics. ACS APPLIED MATERIALS & INTERFACES 2018; 10:23037-23047. [PMID: 29905073 DOI: 10.1021/acsami.8b04291] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Electronic waste (E-waste) contain large environmental contaminants such as toxic heavy metals and hazardous chemicals. These contaminants would migrate into drinking water or food chains and pose a serious threat to environment and human health. Biodegradable green electronics has great potential to address the issue of E-waste. Here, we report on a novel biodegradable and flexible transparent electrode, integrating three-dimensionally (3D) interconnected conductive nanocomposites into edible starch-chitosan-based substrates. Starch and chitosan are extracted from abundant and inexpensive potato and crab shells, respectively. Nacre-inspired interface designs are introduced to construct a 3D interconnected single wall carbon nanotube (SCNT)-pristine graphene (PG)-conductive polymer network architecture. The inorganic one-dimensional SCNT and two-dimensional PG sheets are tightly cross-linked together at the junction interface by long organic conductive poly(3,4-ethylenedioxythiophene) (PEDOT) chains. The formation of a 3D continuous SCNT-PG-PEDOT conductive network leads to not only a low sheet resistance but also a superior flexibility. The flexible transparent electrode possesses an excellent optoelectronic performance: typically, a sheet resistance of 46 Ω/sq with a transmittance of 83.5% at a typical wavelength of 550 nm. The sheet resistance of the electrode slightly increased less than 3% even after hundreds of bending cycles. The lightweight flexible and biocompatible transparent electrode could conform to skin topography or any other arbitrary surface naturally. The edible starch-chitosan substrate-based transparent electrodes could be biodegraded in lysozyme solution rapidly at room temperature without producing any toxic residues. SCNT-PG-PEDOT can be recycled via a membrane process for further fabrication of conductive and reinforcement composites. This high-performance biodegradable transparent electrode is a promising material for next-generation wearable green optoelectronics, transient electronics, and edible electronics.
Collapse
Affiliation(s)
- Jinlei Miao
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Municipal Key Laboratory of Advanced Fiber and Energy Storage, School of Material Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , China
| | - Haihui Liu
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Municipal Key Laboratory of Advanced Fiber and Energy Storage, School of Material Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , China
| | - Yongbing Li
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Municipal Key Laboratory of Advanced Fiber and Energy Storage, School of Material Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , China
| | - Xingxiang Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Municipal Key Laboratory of Advanced Fiber and Energy Storage, School of Material Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , China
| |
Collapse
|
24
|
Moulay S. Recent Trends in Mussel-Inspired Catechol-Containing Polymers (A Review). ACTA ACUST UNITED AC 2018. [DOI: 10.13005/ojc/340301] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Syntheses and applications of mussel-inspired polymeric materials have gained a foothold in research in recent years. Mussel-inspired chemistry coupled to Michael addition and Schiff’s base reactions was the key success for this intensive research. Unequivocally, The basic building brick of these materials is catechol-containing moiety, namely, 3,4-dihydroxyphenyl-L-alanine (L-DOPA or DOPA) and dopamine (DA). These catechol-based units within the chemical structure of the material ensure chiefly its adhesive characteristic to adherends of different natures. The newly-made catechol-bearing polymeric materials exhibit unique features, implying their importance in several uses and applications. Technology advent is being advantaged with these holdfast mussel protein-like materials. This review sheds light into the recent advances of such mussel-inspired materials for their adhesion capacity to several substrata of different natures, and for their applications mainly in antifouling coatings and nanoparticles technology.
Collapse
Affiliation(s)
- Saad Moulay
- Molecular and Macromolecular Chemistry-Physics Laboratory, Department of Process Engineering, Faculty of Technology, Saâd Dahlab University of Blida, B.P. 270, Soumâa Road, 09000, Blida, Algeria
| |
Collapse
|
25
|
Liao Y, Wang M, Chen D. Preparation of Polydopamine-Modified Graphene Oxide/Chitosan Aerogel for Uranium(VI) Adsorption. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b01745] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yun Liao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P.R. China
- School of Nuclear Science and Technology, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Meng Wang
- School of Nuclear Science and Technology, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Dajun Chen
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, P.R. China
| |
Collapse
|
26
|
Huang Y, Zhang W, Ruan G, Li X, Cong Y, Du F, Li J. Reduced Graphene Oxide-Hybridized Polymeric High-Internal Phase Emulsions for Highly Efficient Removal of Polycyclic Aromatic Hydrocarbons from Water Matrix. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:3661-3668. [PMID: 29502419 DOI: 10.1021/acs.langmuir.8b00005] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Reduced graphene oxide (RGO)-hybridized polymeric high-internal phase emulsions (RGO/polyHIPEs) with an open-cell structure and hydrophobicity have been successfully prepared using 2-ethylhexyl acrylate and ethylene glycol dimethacrylate as the monomer and the cross-linker, respectively. The adsorption mechanism and performance of this RGO/polyHIPEs to polycyclic aromatic hydrocarbons (PAHs) were investigated. Adsorption isotherms of PAHs on RGO/polyHIPEs show that the saturated adsorption capacity is 47.5 mg/g and the equilibrium time is 8 h. Cycling tests show that the adsorption capacity of RGO/polyHIPEs remains stable in 10 adsorption-desorption cycles without observable structure change in RGO/polyHIPEs. Moreover, the PAH residues in water samples after being purified by RGO/polyHIPEs are lower than the limit values in drinking water set by the European Food Safety Authority. These results demonstrate that the RGO/polyHIPEs have great potentiality in PAH removal and water purification.
Collapse
Affiliation(s)
- Yipeng Huang
- College of Chemistry and Bioengineering , Guilin University of Technology , Guangxi 541004 , China
| | - Wenjuan Zhang
- College of Chemistry and Bioengineering , Guilin University of Technology , Guangxi 541004 , China
| | - Guihua Ruan
- College of Chemistry and Bioengineering , Guilin University of Technology , Guangxi 541004 , China
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection , Guangxi 541004 , China
| | - Xianxian Li
- College of Chemistry and Bioengineering , Guilin University of Technology , Guangxi 541004 , China
| | - Yongzheng Cong
- College of Chemistry and Bioengineering , Guilin University of Technology , Guangxi 541004 , China
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection , Guangxi 541004 , China
| | - Fuyou Du
- College of Chemistry and Bioengineering , Guilin University of Technology , Guangxi 541004 , China
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection , Guangxi 541004 , China
| | - Jianping Li
- College of Chemistry and Bioengineering , Guilin University of Technology , Guangxi 541004 , China
- Guangxi Colleges and Universities Key Laboratory of Food Safety and Detection , Guangxi 541004 , China
| |
Collapse
|