1
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Chu W, Wang P, Ma Z, Peng L, Guo C, Fu Y, Ding L. Lupeol-loaded chitosan-Ag + nanoparticle/sericin hydrogel accelerates wound healing and effectively inhibits bacterial infection. Int J Biol Macromol 2023; 243:125310. [PMID: 37315678 DOI: 10.1016/j.ijbiomac.2023.125310] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 05/24/2023] [Accepted: 06/07/2023] [Indexed: 06/16/2023]
Abstract
Lupeol, a pentacyclic triterpene, has demonstrated significant wound healing properties; however, its low water solubility has limited its clinical applicability. To overcome this limitation, we utilized Ag+-modified chitosan (CS-Ag) nanoparticles to deliver lupeol, resulting in the formation of CS-Ag-L-NPs. These nanoparticles were then encapsulated within a temperature-sensitive, self-assembled sericin hydrogel. Various analytical methods, including SEM, FTIR, XRD, HPLC, TGA assay, hemolysis and antibacterial activity tests, were employed to characterize the nanoparticles. Additionally, an infectious wound model was used to evaluate the therapeutic and antibacterial efficacy of the CS-Ag-L-NPs modified sericin hydrogel. Our results showed that the encapsulation efficiency of lupeol in CS-Ag-L-NPs reached 62.1 %, with good antibacterial activity against both gram-positive and gram-negative bacteria and a low hemolysis ratio (<5 %). The CS-Ag-L-NPs sericin gel exhibited multiple beneficial effects, including inhibiting bacterial proliferation in wound beds, promoting wound healing via accelerated re-epithelialization, reducing inflammation, and enhancing collagen fiber deposition. We conclude that the CS-Ag-L-NPs loaded sericin hydrogel has tremendous potential for development as a multifunctional therapeutic platform capable of accelerating wound healing and effectively suppressing bacterial infections in clinical settings.
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Affiliation(s)
- Wenhui Chu
- Taizhou Central Hospital, School of Life Science, Taizhou University, Taizhou, Zhejiang 318000, PR China; Taizhou Research Institute of Bio-medical and Chemical Industry CO., Ltd, Taizhou, Zhejiang 318000, PR China
| | - Pan Wang
- Traditional Chinese Medicine Industry Development and Promotion Center of Pan'an County, Jinhua, Zhejiang 321000, PR China
| | - Zhe Ma
- Taizhou Central Hospital, School of Life Science, Taizhou University, Taizhou, Zhejiang 318000, PR China
| | - Lin Peng
- Taizhou Central Hospital, School of Life Science, Taizhou University, Taizhou, Zhejiang 318000, PR China
| | - Chenyuan Guo
- Taizhou Central Hospital, School of Life Science, Taizhou University, Taizhou, Zhejiang 318000, PR China
| | - Yongqian Fu
- Taizhou Key Laboratory of Biomass Functional Materials Development and Application, Taizhou University, Taizhou, Zhejiang 318000, PR China.
| | - Lingzhi Ding
- Taizhou Central Hospital, School of Life Science, Taizhou University, Taizhou, Zhejiang 318000, PR China.
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2
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Singer L, Fouda A, Bourauel C. Biomimetic approaches and materials in restorative and regenerative dentistry: review article. BMC Oral Health 2023; 23:105. [PMID: 36797710 PMCID: PMC9936671 DOI: 10.1186/s12903-023-02808-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 02/10/2023] [Indexed: 02/18/2023] Open
Abstract
Biomimetics is a branch of science that explores the technical beauty of nature. The concept of biomimetics has been brilliantly applied in famous applications such as the design of the Eiffel Tower that has been inspired from the trabecular structure of bone. In dentistry, the purpose of using biomimetic concepts and protocols is to conserve tooth structure and vitality, increase the longevity of restorative dental treatments, and eliminate future retreatment cycles. Biomimetic dental materials are inherently biocompatible with excellent physico-chemical properties. They have been successfully applied in different dental fields with the advantages of enhanced strength, sealing, regenerative and antibacterial abilities. Moreover, many biomimetic materials were proven to overcome significant limitations of earlier available generation counterpart. Therefore, this review aims to spot the light on some recent developments in the emerging field of biomimetics especially in restorative and regenerative dentistry. Different approaches of restoration, remineralisation and regeneration of teeth are also discussed in this review. In addition, various biomimetic dental restorative materials and tissue engineering materials are discussed.
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Affiliation(s)
- Lamia Singer
- Oral Technology, University Hospital Bonn, 53111, Bonn, North Rhine-Westphalia, Germany. .,Department of Orthodontics, University Hospital Bonn, 53111, Bonn, North Rhine-Westphalia, Germany.
| | - Ahmed Fouda
- grid.15090.3d0000 0000 8786 803XOral Technology, University Hospital Bonn, 53111 Bonn, North Rhine-Westphalia Germany ,grid.33003.330000 0000 9889 5690Department of Fixed Prosthodontics, Suez Canal University, Ismailia, Egypt
| | - Christoph Bourauel
- grid.15090.3d0000 0000 8786 803XOral Technology, University Hospital Bonn, 53111 Bonn, North Rhine-Westphalia Germany
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3
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Gao Y, Wang J, Liu X, Lang X, Niu H. Fabrication of Durable and Non-leaching Triclosan-based Antibacterial Polypropylene. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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4
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Single-Side Superhydrophobicity in Si3N4-Doped and SiO2-Treated Polypropylene Nonwoven Webs with Antibacterial Activity. Polymers (Basel) 2022; 14:polym14142952. [PMID: 35890729 PMCID: PMC9323961 DOI: 10.3390/polym14142952] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/18/2022] [Accepted: 07/19/2022] [Indexed: 12/19/2022] Open
Abstract
Meltblown (MB) nonwovens as air filter materials have played an important role in protecting people from microbe infection in the COVID-19 pandemic. As the pandemic enters the third year in this current global event, it becomes more and more beneficial to develop more functional MB nonwovens with special surface selectivity as well as antibacterial activities. In this article, an antibacterial polypropylene MB nonwoven doped with nano silicon nitride (Si3N4), one of ceramic materials, was developed. With the introduction of Si3N4, both the average diameter of the fibers and the pore diameter and porosity of the nonwovens can be tailored. Moreover, the nonwovens having a single-side moisture transportation, which would be more comfortable in use for respirators or masks, was designed by imparting a hydrophobicity gradient through the single-side superhydrophobic finishing of reactive organic/inorganic silicon coprecipitation in situ. After a nano/micro structural SiO2 precipitation on one side of the fabric surfaces, the contact angles were up to 161.7° from 141.0° originally. The nonwovens were evaluated on antibacterial activity, the result of which indicated that they had a high antibacterial activity when the dosage of Si3N4 was 0.6 wt%. The bacteriostatic rate against E. coli and S. aureus was up to over 96%. Due to the nontoxicity and excellent antibacterial activity of Si3N4, this MB nonwovens are promising as a high-efficiency air filter material, particularly during the pandemic.
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5
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Zhao H, Bai N, Zhang Q, Wang Y, Jiang W, Yang J. Preparation of mussel-inspired silver/polydopamine antibacterial biofilms on Ti-6Al-4V for dental applications. RSC Adv 2022; 12:6641-6648. [PMID: 35424626 PMCID: PMC8982268 DOI: 10.1039/d1ra06634j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 02/22/2022] [Indexed: 11/21/2022] Open
Abstract
The properties of osseointegration and antibacterial ability is vital import for dental materials. Herein, we designed the multilayer TC4-Ag-polydopamine coatings, to provide TC4 with slow-release antibacterial properties whilst maintaining cytocompatibility. In brief, thickness of Ag inner layer can be easily controlled by magnetron sputtering technology. The resulting top polydopamine layer protected the Ag well from corrosion and gave a sustained release of Ag+ up to one month. In addition, the prepared TC4-Ag-polydopamine samples with Ag thickness of 20 and 30 nm, showed high hydrophilic performance with the contact-angle less than 20°, low cytotoxicity and good cytocompatibility. Expectedly, it could become a prospective candidate for future slow-release antibacterial dental materials.
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Affiliation(s)
- Hongmei Zhao
- The Affiliated Hospital of Qingdao University Qingdao 266003 China
- School of Stomatology of Qingdao University Qingdao 266003 China
| | - Na Bai
- The Affiliated Hospital of Qingdao University Qingdao 266003 China
- School of Stomatology of Qingdao University Qingdao 266003 China
| | - Qian Zhang
- The Affiliated Hospital of Qingdao University Qingdao 266003 China
- School of Stomatology of Qingdao University Qingdao 266003 China
| | - Ying Wang
- The Affiliated Hospital of Qingdao University Qingdao 266003 China
- School of Stomatology of Qingdao University Qingdao 266003 China
| | - Wenjing Jiang
- The Affiliated Hospital of Qingdao University Qingdao 266003 China
- School of Stomatology of Qingdao University Qingdao 266003 China
| | - Jianjun Yang
- The Affiliated Hospital of Qingdao University Qingdao 266003 China
- School of Stomatology of Qingdao University Qingdao 266003 China
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6
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Li T, Wang X, Wang Y, Shiu B, Peng H, Lou C, Lin J. Silver‐coated
conductive composite fabric with flexible, anti‐flaming for electromagnetic interference shielding. J Appl Polym Sci 2021. [DOI: 10.1002/app.51875] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ting‐Ting Li
- Innovation Platform of Intelligent and Energy‐Saving Textiles, School of Textile Science and Engineering Tiangong University Tianjin China
- Tianjin and Ministry of Education Key Laboratory for Advanced Textile Composite Materials Tiangong University Tianjin China
| | - Xiaomeng Wang
- Innovation Platform of Intelligent and Energy‐Saving Textiles, School of Textile Science and Engineering Tiangong University Tianjin China
| | - Yanting Wang
- Innovation Platform of Intelligent and Energy‐Saving Textiles, School of Textile Science and Engineering Tiangong University Tianjin China
| | | | - Hao‐Kai Peng
- Innovation Platform of Intelligent and Energy‐Saving Textiles, School of Textile Science and Engineering Tiangong University Tianjin China
- Tianjin and Ministry of Education Key Laboratory for Advanced Textile Composite Materials Tiangong University Tianjin China
| | - Ching‐Wen Lou
- Innovation Platform of Intelligent and Energy‐Saving Textiles, School of Textile Science and Engineering Tiangong University Tianjin China
- Department of Bioinformatics and Medical Engineering Asia University Taichung Taiwan
- Department of Medical Research, China Medical University Hospital China Medical University Taichung Taiwan
- Fujian Key Laboratory of Novel Functional Textile Fibers and Materials Minjiang University Fuzhou China
| | - Jia‐Horng Lin
- Innovation Platform of Intelligent and Energy‐Saving Textiles, School of Textile Science and Engineering Tiangong University Tianjin China
- Ocean College Minjiang University Fuzhou China
- Laboratory of Fiber Application and Manufacturing, Department of Fiber and Composite Materials Feng Chia University Taichung Taiwan
- School of Chinese Medicine China Medical University Taichung Taiwan
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7
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Zhan Y, Hao X, Wang L, Jiang X, Cheng Y, Wang C, Meng Y, Xia H, Chen Z. Superhydrophobic and Flexible Silver Nanowire-Coated Cellulose Filter Papers with Sputter-Deposited Nickel Nanoparticles for Ultrahigh Electromagnetic Interference Shielding. ACS APPLIED MATERIALS & INTERFACES 2021; 13:14623-14633. [PMID: 33733743 DOI: 10.1021/acsami.1c03692] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Superhydrophobic, flexible, and ultrahigh-performance electromagnetic interference (EMI) shielding papers are of paramount importance to safety and long-term service under external mechanical deformations or other harsh service environments because they fulfill the growing demand for multipurpose materials. Herein, we fabricated multifunctional papers by incorporating sputter-deposited nickel nanoparticles (NiNPs) and a fluorine-containing coating onto cellulose filter papers coated with silver nanowires (AgNWs). AgNW networks with sputter-deposited NiNPs provide outstanding magnetic properties, electrical conductivity, and EMI shielding performance. At an AgNW content of 0.109 vol % and a NiNP content of 0.013 mg/cm2, the resultant papers exhibit a superior EMI shielding effectiveness (SE) of 88.4 dB. Additionally, the fluorine-containing coating endows the resultant papers with a high contact angle of 149.7°. Remarkably, the obtained papers still maintain a high EMI SE even after 1500 bending cycles or immersion in water, salt, or strong alkaline solutions for 2 h, indicating their outstanding mechanical robustness and chemical durability. This work opens a new window for designing and implementing ultrahigh-performance EMI shielding materials.
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Affiliation(s)
- Yanhu Zhan
- School of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China
- Guangxi Key Laboratory of Calcium Carbonate Resources Comprehensive Utilization, Hezhou University, Hezhou 542899, China
| | - Xuehui Hao
- School of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Licui Wang
- School of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Xiancai Jiang
- College of Chemical Engineering, Fuzhou University, Fuzhou 350108, China
| | - Yu Cheng
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, China
| | - Changzheng Wang
- School of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Yanyan Meng
- School of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Hesheng Xia
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, China
| | - Zhenming Chen
- Guangxi Key Laboratory of Calcium Carbonate Resources Comprehensive Utilization, Hezhou University, Hezhou 542899, China
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8
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Chu C, Hu X, Yan H, Sun Y. Surface functionalization of nanostructured Cu/Ag-deposited polypropylene fiber by magnetron sputtering. E-POLYMERS 2021. [DOI: 10.1515/epoly-2021-0020] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Metallic nanoparticles are widely used due to their superior electrical, antimicrobial, and electromagnetic shielding characteristics. In this work, the surface functionalization of polypropylene (PP) fibers using magnetron sputtering with pure Cu and Ag targets in the presence of Ar gas was systematically investigated, in detail, in terms of surface morphology, tensile, abrasion resistance, moisture regain, antibacterial, and electrostatic properties. The results indicated that the nanocomposite films deposited on the PP surface were even and dense under proper treatment conditions. Compared with pristine fiber, breaking tenacity, abrasion resistance, and antibacterial properties of the Cu/Ag-deposited PP fibers were significantly improved, whereas the extension at break and moisture regain decreased in different degrees. Also, the electrostatic property of treated PP fabrics was studied. This work reveals that surface functionalization of Cu/Ag-deposited PP fiber is versatile, and the surface treatment that uses metallic nanoparticles by magnetron sputtering is a promising approach for achieving multifunctional textiles.
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Affiliation(s)
- Changliu Chu
- College of Textiles and Garments, Anhui Polytechnic University , Wuhu , 241000 , China
| | - Xuefeng Hu
- College of Textiles and Garments, Anhui Polytechnic University , Wuhu , 241000 , China
| | - Hongqin Yan
- College of Textiles and Garments, Anhui Polytechnic University , Wuhu , 241000 , China
| | - Yanyan Sun
- College of Textiles and Garments, Anhui Polytechnic University , Wuhu , 241000 , China
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9
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Gao YN, Wang Y, Yue TN, Weng YX, Wang M. Multifunctional cotton non-woven fabrics coated with silver nanoparticles and polymers for antibacterial, superhydrophobic and high performance microwave shielding. J Colloid Interface Sci 2021; 582:112-123. [DOI: 10.1016/j.jcis.2020.08.037] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 08/08/2020] [Accepted: 08/10/2020] [Indexed: 10/25/2022]
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10
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Zhou Y, Sun Z, Jiang L, Chen S, Ma J, Zhou F. Highly Conductive Silver Nanoparticle-Functionalized Aramid Fiber Paper for Electrical Heaters with Rapid Response and Chemical Stability. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c04005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yanfen Zhou
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, P. R. China
- Industrial Research Institute of Nonwovens and Technical Textiles, Qingdao 266071, P. R. China
| | - Zhenhua Sun
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, P. R. China
| | - Liang Jiang
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, P. R. China
| | - Shaojuan Chen
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, P. R. China
- Eco-Textile Collaborative Innovation Center, Qingdao University, Qingdao 266071, P. R. China
| | - Jianwei Ma
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, P. R. China
- Industrial Research Institute of Nonwovens and Technical Textiles, Qingdao 266071, P. R. China
| | - Fenglei Zhou
- College of Textiles and Clothing, Qingdao University, Qingdao 266071, P. R. China
- Centre for Medical Image Computing, University College London, London WC1V 6LJ, U.K
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11
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Gan L, Geng A, Wu Y, Wang L, Fang X, Xu L, Mei C. Antibacterial, Flexible, and Conductive Membrane Based on MWCNTs/Ag Coated Electro-Spun PLA Nanofibrous Scaffolds as Wearable Fabric for Body Motion Sensing. Polymers (Basel) 2020; 12:E120. [PMID: 31948041 PMCID: PMC7022570 DOI: 10.3390/polym12010120] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/12/2019] [Accepted: 12/16/2019] [Indexed: 11/17/2022] Open
Abstract
In the present study, flexible and conductive nanofiber membranes were prepared by coating PLA nanofibrous scaffolds with carbon nanotubes and silver nanoparticles. The morphology and structure of the prepared membrane was characterized, as well as its mechanical properties, electrical sensing behavior during consecutive stretching-releasing cycles and human motion detecting performance. Furthermore, the antibacterial properties of the membrane was also investigated. Due to the synergistic and interconnected three-dimensional (3D) conductive networks, formed by carbon nanotubes and silver nanoparticles, the membrane exhibited repeatable and durable strain-dependent sensitivity. Further, the prepared membrane could accurately detect the motions of different body parts. Accompanied with promising antibacterial properties and washing fastness, the prepared flexible and conductive membrane provides great application potential as a wearable fabric for real-time body motion sensing.
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Affiliation(s)
- Lu Gan
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China; (L.G.); (A.G.); (Y.W.); (L.W.); (X.F.)
| | - Aobo Geng
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China; (L.G.); (A.G.); (Y.W.); (L.W.); (X.F.)
| | - Ying Wu
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China; (L.G.); (A.G.); (Y.W.); (L.W.); (X.F.)
| | - Linjie Wang
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China; (L.G.); (A.G.); (Y.W.); (L.W.); (X.F.)
| | - Xingyu Fang
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China; (L.G.); (A.G.); (Y.W.); (L.W.); (X.F.)
| | - Lijie Xu
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China;
| | - Changtong Mei
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China; (L.G.); (A.G.); (Y.W.); (L.W.); (X.F.)
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12
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Xiang C, Guo J, Sun R, Hinitt A, Helps T, Taghavi M, Rossiter J. Electroactive Textile Actuators for Breathability Control and Thermal Regulation Devices. Polymers (Basel) 2019; 11:E1199. [PMID: 31323744 PMCID: PMC6680543 DOI: 10.3390/polym11071199] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 07/03/2019] [Accepted: 07/16/2019] [Indexed: 11/17/2022] Open
Abstract
Smart fabrics offer the potential for a new generation of soft robotics and wearable technologies through the fusion of smart materials, textiles and electrical circuitries. Conductive and stretchable textiles have inherent compliance and low resistance that are suitable for driving artificial muscle actuators and are potentially safer electrode materials for soft actuation technologies. We demonstrate how soft electroactive actuating structures can be designed and fabricated from conducting textiles. We first quantitatively analyse a range of stretchable conductive textiles for dielectric elastomer actuators (DEAs). We found that conductive-knit textiles are more suitable for unidirectional DEA applications due to the largest difference (150%) in principle strain axes, whereas isotropic textiles are more suited to bidirectional DEA applications due to the smallest (11.1%) principle strain difference. Finally, we demonstrate controllable breathability through a planar e-textile DEA-driven skin and show thermal regulation in a wearable prototype that exploits soft actuation and kirigami.
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Affiliation(s)
- Chaoqun Xiang
- SoftLab, Bristol Robotics Laboratory, University of Bristol, Bristol BS16 1QY, UK
| | - Jianglong Guo
- SoftLab, Bristol Robotics Laboratory, University of Bristol, Bristol BS16 1QY, UK.
| | - Rujie Sun
- Bristol Composites Institute (ACCIS), University of Bristol, Bristol BS8 1TR, UK
| | - Andrew Hinitt
- SoftLab, Bristol Robotics Laboratory, University of Bristol, Bristol BS16 1QY, UK
| | - Tim Helps
- SoftLab, Bristol Robotics Laboratory, University of Bristol, Bristol BS16 1QY, UK
| | - Majid Taghavi
- SoftLab, Bristol Robotics Laboratory, University of Bristol, Bristol BS16 1QY, UK
| | - Jonathan Rossiter
- SoftLab, Bristol Robotics Laboratory, University of Bristol, Bristol BS16 1QY, UK
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13
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Abstract
Floor antibacterial technology prevents the human body from cross-infection with bacterial diseases. The most commonly used approach to endow daily-used floors with antibacterial properties is to apply a thin film of antibacterial agents on the parquet floor surface. In the present study, five commercial antibacterial nanoparticles were first dispersed in melamine resin solution, and then applied on a floor. Afterwards, the antibacterial properties of the nanoparticle-coated floor were investigated, in which Escherichia coli was used as the target bacteria. The impact of the nanoparticle dispersing agents on the ultimate antibacterial properties of the floor were also investigated. The results showed that silver nanoparticle-loaded hydroxyl zirconium sodium phosphate (Ag-HZDP) was most suitable as the antibacterial agent of a melamine coating for parquet flooring. With the help of sodium hexametaphosphate, the antibacterial agent was able to disperse well in the melamine resin solution and was also able to disperse well on the floor surface. When the loading amount of Ag-HZDP was 1 wt % or higher, the prepared antibacterial floor was able kill almost all the bacteria cultivated on its surface. Moreover, the prepared antibacterial floor had a lower toxicity compared with a pristine cedar substrate. The present study provides an effective way to provide daily-used parquet floors with excellent antibacterial properties.
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