1
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Ketoja JA, Saurio K, Rautkoski H, Kenttä E, Tanaka A, Koponen AI, Virkajärvi J, Heinonen K, Kostamo K, Järvenpää A, Hyry N, Heikkilä P, Hankonen N, Harlin A. Design of biodegradable cellulose filtration material with high efficiency and breathability. Carbohydr Polym 2024; 336:122133. [PMID: 38670771 DOI: 10.1016/j.carbpol.2024.122133] [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: 11/20/2023] [Revised: 03/27/2024] [Accepted: 04/04/2024] [Indexed: 04/28/2024]
Abstract
Using respiratory protective equipment is one of the relevant preventive measures for infectious diseases, including COVID-19, and for various occupational respiratory hazards. Because experienced discomfort may result in a decrease in the utilization of respirators, it is important to enhance the material properties to resolve suboptimal usage. We combined several technologies to produce a filtration material that met requirements set by a cross-disciplinary interview study on the usability of protective equipment. Improved breathability, environmental sustainability, and comfort of the material were achieved by electrospinning poly(ethylene oxide) (PEO) nanofibers on a thin foam-formed fabric from regenerated cellulose fibers. The high filtration efficiency of sub-micron-sized diethylhexyl sebacate (DEHS) aerosol particles resulted from the small mean segment length of 0.35 μm of the nanofiber network. For a particle diameter of 0.6 μm, the filtration efficiency of a single PEO layer varied in the range of 80-97 % depending on the coat weight. The corresponding pressure drop had the level of 20-90 Pa for the airflow velocity of 5.3 cm/s. Using a multilayer structure, a very high filtration efficiency of 99.5 % was obtained with only a slightly higher pressure drop. This opens a route toward designing sustainable personal protective media with improved user experience.
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Affiliation(s)
- Jukka A Ketoja
- VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 Espoo, Finland.
| | - Kaisa Saurio
- Faculty of Social Sciences, Tampere University, Finland
| | - Hille Rautkoski
- VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 Espoo, Finland
| | - Eija Kenttä
- VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 Espoo, Finland
| | - Atsushi Tanaka
- VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 Espoo, Finland
| | - Antti I Koponen
- VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 Espoo, Finland
| | - Jussi Virkajärvi
- VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 Espoo, Finland
| | - Kimmo Heinonen
- VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 Espoo, Finland
| | - Katri Kostamo
- Faculty of Social Sciences, Tampere University, Finland
| | - Anastasia Järvenpää
- VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 Espoo, Finland
| | - Niina Hyry
- VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 Espoo, Finland
| | - Pirjo Heikkilä
- VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 Espoo, Finland
| | | | - Ali Harlin
- VTT Technical Research Centre of Finland Ltd, P.O. Box 1000, FI-02044 Espoo, Finland
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2
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Zhu G, Wang C, Yang T, Gao N, Zhang Y, Zhu J, He X, Shao J, Li S, Zhang M, Zhang S, Gao J, Xu H. Bio-inspired gradient poly(lactic acid) nanofibers for active capturing of PM 0.3 and real-time respiratory monitoring. JOURNAL OF HAZARDOUS MATERIALS 2024; 474:134781. [PMID: 38824775 DOI: 10.1016/j.jhazmat.2024.134781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 05/17/2024] [Accepted: 05/30/2024] [Indexed: 06/04/2024]
Abstract
The concept of bio-inspired gradient hierarchies, in which the well-defined MOF nanocrystals serve as active nanodielectrics to create electroactive shell at poly(lactic acid) (PLA) nanofibers, is introduced to promote the surface activity and electroactivity of PLA nanofibrous membranes (NFMs). The strategy enabled significant refinement of PLA nanofibers during coaxial electrospinning (∼40 % decline of fiber diameter), accompanied by remarkable increase of specific surface area (nearly 1.5 m2/g), porosity (approximately 85 %) and dielectric constants for the bio-inspired gradient PLA (BG-PLA) NFMs. It largely boosted initial electret properties and electrostatic adsorption capability of BG-PLA NFMs, as well as charge regeneration by TENG mechanisms even under high-humidity environment. The BG-PLA NFMs thus featured exceptionally high PM0.3 filtration efficiencies with well-controlled air resistance (94.3 %, 163.4 Pa, 85 L/min), in contrast to the relatively low efficiency of only 80.0 % for normal PLA. During the application evaluation of outdoor air purification, excellent long-term filtering performance was demonstrated for the BG-PLA for up to 4 h (nearly 98.0 %, 53 Pa), whereas normal PLA exhibited a gradually declined filtration efficiency and an increased pressure drop. Moreover, the BG-PLA NFMs of increased electroactivity were ready to generate tribo-output currents as driven by respiratory vibrations, which enabled real-time monitoring of electrophysiological signals. This bio-inspired gradient strategy opens up promising pathways to engender biodegradable nanofibers of high surface activity and electroactivity, which has significant implications for intelligent protective membranes.
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Affiliation(s)
- Guiying Zhu
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Cunmin Wang
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China
| | - Ting Yang
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Na Gao
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Yifan Zhang
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Jintuo Zhu
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China; Jiangsu Engineering Research Center of Dust Control and Occupational Protection, Xuzhou 221008, China
| | - Xinjian He
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China; Jiangsu Engineering Research Center of Dust Control and Occupational Protection, Xuzhou 221008, China
| | - Jiang Shao
- School of Architecture & Design, China University of Mining and Technology, Xuzhou 221116, China; Jiangsu Engineering Research Center of Dust Control and Occupational Protection, Xuzhou 221008, China
| | - Shihang Li
- Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization, Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou 221008, China; Jiangsu Engineering Research Center of Dust Control and Occupational Protection, Xuzhou 221008, China
| | - Mingming Zhang
- China Academy of Safety Science & Technology, 100012 Beijing, China
| | - Shenghui Zhang
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Jiefeng Gao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 272100, China
| | - Huan Xu
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China; College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, China; Jiangsu Engineering Research Center of Dust Control and Occupational Protection, Xuzhou 221008, China.
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3
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Lin X, Sun W, Lin M, Chen T, Duan K, Lin H, Zhang C, Qi H. Bicomponent core/sheath melt-blown fibers for air filtration with ultra-low resistance. RSC Adv 2024; 14:14100-14113. [PMID: 38686297 PMCID: PMC11056944 DOI: 10.1039/d4ra02174f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 04/21/2024] [Indexed: 05/02/2024] Open
Abstract
With the escalating air pollution and frequent outbreaks of airborne diseases, there is a growing demand for personal protective filtration media. Melt-blown nonwovens have proven to be highly effective in capturing tiny particles, but their tightly packed fiber assemblages are more resistant to airflow and less comfortable to breathe. Here, we present a one-step melt-blown spinning process for the production of bicomponent core/sheath (BCS) crimped fibers and their application in high-efficiency, low-resistance air filtration. Fiber curl is caused by unbalanced internal stresses resulting from differences in the structure components, resulting in uneven shrinkage inside and outside the fibers. The resulting CM@S-2 filtration media features a uniform fiber curl and a porous fiber mesh structure, which reduces air filtration resistance. Under the same filtration conditions, the filtration efficiency of CM@S-2 (96.58% vs. 95.58%), filtration resistance (56.1 Pa vs. 108.0 Pa), quality factor (0.061 Pa-1vs. 0.029 Pa-1), and dust holding capacity (10.60 g m-2vs. 9.10 g m-2) were comparable to those of the single-component polypropylene filters. The filtration efficiency of the CM@S-2 remained above 94.0% after 30 days of indoor storage. Computational Fluid Dynamics (CFD) simulation demonstrated that crimped fibers effectively reduce pressure surges on the filter media caused by fiber accumulation. In comparative tests with commercial masks, the CM@S-2 cartridge masks demonstrated superior air permeability compared to commercial masks under similar filtration conditions. In conclusion, the bicomponent core/sheath melt-blown fibers significantly reduce air resistance and show excellent potential for application in protective masks.
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Affiliation(s)
- Xiaofang Lin
- Institute of Smart & Ecological Textile, Quanzhou Normal University Fujian China
- College of Textile and Clothing Engineering, Soochow University Jiangsu China
| | - Wenbo Sun
- Institute of Smart & Ecological Textile, Quanzhou Normal University Fujian China
| | - Minggang Lin
- Institute of Smart & Ecological Textile, Quanzhou Normal University Fujian China
| | - Ting Chen
- College of Textile and Clothing Engineering, Soochow University Jiangsu China
| | - Kangming Duan
- Institute of Smart & Ecological Textile, Quanzhou Normal University Fujian China
| | - Huiting Lin
- Institute of Smart & Ecological Textile, Quanzhou Normal University Fujian China
- College of Textile and Apparel, Quanzhou Normal University Fujian China
| | - Chuyang Zhang
- Institute of Smart & Ecological Textile, Quanzhou Normal University Fujian China
| | - Huan Qi
- Institute of Smart & Ecological Textile, Quanzhou Normal University Fujian China
- College of Textile and Apparel, Quanzhou Normal University Fujian China
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Zhao Y, Ming J, Cai S, Wang X, Ning X. One-step fabrication of polylactic acid (PLA) nanofibrous membranes with spider-web-like structure for high-efficiency PM 0.3 capture. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133232. [PMID: 38141315 DOI: 10.1016/j.jhazmat.2023.133232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/28/2023] [Accepted: 12/09/2023] [Indexed: 12/25/2023]
Abstract
High-efficiency air filters are in high demand to protect human health from the threat of ultrafine particulate matters (PM). However, most commercial air filters are less effective for PM0.3 capture and/or still suffer from undesirable pressure drops. They are also typically petroleum-based. Herein, a double-jet synchronous electrospinning technology was demonstrated to fabricate spider-web-like polylactic acid (PLA) nanofibrous membranes (SPNM) in one step. The properties of spinning solutions were regulated to construct favorable multi-scale nanofiber and bead structures that mimicked the structural units in spider-webs. The as-prepared SPNM exhibited excellent filtration efficiency (99.87 %) and high quality factor (0.321 Pa-1) against the PM0.3, while presenting an attractively low pressure drop (19 Pa). Additionally, the filtration performance of SPNM was almost completely preserved during 10-cycle tests and the 6-month long-term tests, showing excellent function stability and durability. Benefiting from its good hydrophobicity (WCA = 143.2°), SPNM also presented a satisfactory filtration efficiency (>99.37 %) with low pressure drop (18 Pa) at an environment with humidity at 90 % against PM0.3. Furthermore, the unique structure increased the mechanical strength of SPNM, facilitating the processability for practical applications. Overall, this work may shed light on a promising approach for developing biomass-based, highly efficient filtration materials with hierarchical structures.
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Affiliation(s)
- Yintao Zhao
- Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao 266071, Shandong, China; Shandong Center for Engineered Nonwovens, Qingdao University, Qingdao 266071, Shandong, China
| | - Jinfa Ming
- Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao 266071, Shandong, China; Shandong Center for Engineered Nonwovens, Qingdao University, Qingdao 266071, Shandong, China
| | - Shunzhong Cai
- Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao 266071, Shandong, China; Shandong Center for Engineered Nonwovens, Qingdao University, Qingdao 266071, Shandong, China
| | - Xuefang Wang
- Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao 266071, Shandong, China; Shandong Center for Engineered Nonwovens, Qingdao University, Qingdao 266071, Shandong, China.
| | - Xin Ning
- Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Qingdao University, Qingdao 266071, Shandong, China; Shandong Center for Engineered Nonwovens, Qingdao University, Qingdao 266071, Shandong, China; State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, Shandong, China.
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5
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Emam MH, Elezaby RS, Swidan SA, Hathout RM. Nanofiberous facemasks as protectives against pandemic respiratory viruses. Expert Rev Respir Med 2024; 18:127-143. [PMID: 38753449 DOI: 10.1080/17476348.2024.2356601] [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: 11/08/2023] [Accepted: 05/14/2024] [Indexed: 05/18/2024]
Abstract
INTRODUCTION Wearing protective face masks and respirators has been a necessity to reduce the transmission rate of respiratory viruses since the outbreak of the coronavirus (COVID-19) disease. Nevertheless, the outbreak has revealed the need to develop efficient air filter materials and innovative anti-microbial protectives. Nanofibrous facemasks, either loaded with antiviral nanoparticles or not, are very promising personal protective equipment (PPE) against pandemic respiratory viruses. AREAS COVERED In this review, multiple types of face masks and respirators are discussed as well as filtration mechanisms of particulates. In this regard, the limitations of traditional face masks were summarized and the advancement of nanotechnology in developing nanofibrous masks and air filters was discussed. Different methods of preparing nanofibers were explained. The various approaches used for enhancing nanofibrous face masks were covered. EXPERT OPINION Although wearing conventional face masks can limit viral infection spread to some extent, the world is in great need for more protective face masks. Nanofibers can block viral particles efficiently and can be incorporated into face masks in order to enhance their filtration efficiency. Also, we believe that other modifications such as addition of antiviral nanoparticles can significantly increase the protection power of facemasks.
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Affiliation(s)
- Merna H Emam
- Nanotechnology Research Center (NTRC), The British University in Egypt, Cairo, Egypt
| | - Reham S Elezaby
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Shady A Swidan
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
- The Centre for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
| | - Rania M Hathout
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
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6
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Hossain M, Karmakar K, Sarkar P, Chattaraj T, Rao KDM. Self-Sanitization in a Silk Nanofibrous Network for Biodegradable PM 0.3 Filters with In Situ Joule Heating. ACS OMEGA 2024; 9:9137-9146. [PMID: 38434843 PMCID: PMC10905722 DOI: 10.1021/acsomega.3c08020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 01/23/2024] [Accepted: 02/05/2024] [Indexed: 03/05/2024]
Abstract
In the contemporary way of life, face masks are crucial in managing disease transmission and battling air pollution. However, two key challenges, self-sanitization and biodegradation of face masks, need immediate attention, prompting the development of innovative solutions for the future. In this study, we present a novel approach that combines controlled acid hydrolysis and mechanical chopping to synthesize a silk nanofibrous network (SNN) seamlessly integrated with a wearable stainless steel mesh, resulting in the fabrication of self-sanitizable face masks. The distinct architecture of face masks showcases remarkable filtration efficiencies of 91.4, 95.4, and 98.3% for PM0.3, PM0.5, and PM1.0, respectively, while maintaining a comfortable level of breathability (ΔP = 92 Pa). Additionally, the face mask shows that a remarkable thermal resistance of 472 °C cm2 W-1 generates heat spontaneously at low voltage, deactivating Escherichia coli bacteria on the SNN, enabling self-sanitization. The SNN exhibited complete disintegration within the environment in just 10 days, highlighting the remarkable biodegradability of the face mask. The unique advantage of self-sanitization and biodegradation in a face mask filter is simultaneously achieved for the first time, which will open avenues to accomplish environmentally benign next-generation face masks.
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Affiliation(s)
| | | | - Prakash Sarkar
- School of Applied & Interdisciplinary
Sciences, Indian Association for the Cultivation
of Science, Jadavpur, Kolkata 700032, India
| | - Tiyasi Chattaraj
- School of Applied & Interdisciplinary
Sciences, Indian Association for the Cultivation
of Science, Jadavpur, Kolkata 700032, India
| | - K. D. M. Rao
- School of Applied & Interdisciplinary
Sciences, Indian Association for the Cultivation
of Science, Jadavpur, Kolkata 700032, India
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7
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Yang Y, Li X, Zhou Z, Qiu Q, Chen W, Huang J, Cai W, Qin X, Lai Y. Ultrathin, ultralight dual-scale fibrous networks with high-infrared transmittance for high-performance, comfortable and sustainable PM 0.3 filter. Nat Commun 2024; 15:1586. [PMID: 38383519 PMCID: PMC10881466 DOI: 10.1038/s41467-024-45833-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 02/05/2024] [Indexed: 02/23/2024] Open
Abstract
Highly permeable particulate matter (PM) can carry various bacteria, viruses and toxics and pose a serious threat to public health. Nevertheless, current respirators typically sacrifice their thickness and base weight for high-performance filtration, which inevitably causes wearing discomfort and significant consumption of raw materials. Here, we show a facile yet massive splitting eletrospinning strategy to prepare an ultrathin, ultralight and radiative cooling dual-scale fiber membrane with about 80% infrared transmittance for high-protective, comfortable and sustainable air filter. By tailoring antibacterial surfactant-triggered splitting of charged jets, the dual-scale fibrous filter consisting of continuous nanofibers (44 ± 12 nm) and submicron-fibers (159 ± 32 nm) is formed. It presents ultralow thickness (1.49 μm) and base weight (0.57 g m-2) but superior protective performances (about 99.95% PM0.3 removal, durable antibacterial ability) and wearing comfort of low air resistance, high heat dissipation and moisture permeability. Moreover, the ultralight filter can save over 97% polymers than commercial N95 respirator, enabling itself to be sustainable and economical. This work paves the way for designing advanced and sustainable protective materials.
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Affiliation(s)
- Yuchen Yang
- Qingyuan Innovation Laboratory, Quanzhou, 362801, P. R. China
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, P. R. China
| | - Xiangshun Li
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, P. R. China
| | - Zhiyong Zhou
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, P. R. China
| | - Qiaohua Qiu
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, P. R. China
- College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, P. R. China
| | - Wenjing Chen
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, P. R. China
| | - Jianying Huang
- Qingyuan Innovation Laboratory, Quanzhou, 362801, P. R. China
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Weilong Cai
- Qingyuan Innovation Laboratory, Quanzhou, 362801, P. R. China
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Xiaohong Qin
- Key Laboratory of Textile Science & Technology of Ministry of Education, College of Textiles, Donghua University, Shanghai, 201620, P. R. China.
| | - Yuekun Lai
- Qingyuan Innovation Laboratory, Quanzhou, 362801, P. R. China.
- College of Chemical Engineering, Fuzhou University, Fuzhou, 350116, P. R. China.
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8
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Soo XYD, Jia L, Lim QF, Chua MH, Wang S, Hui HK, See JMR, Chen Y, Li J, Wei F, Tomczak N, Kong J, Loh XJ, Fei X, Zhu Q. Hydrolytic degradation and biodegradation of polylactic acid electrospun fibers. CHEMOSPHERE 2024; 350:141186. [PMID: 38215833 DOI: 10.1016/j.chemosphere.2024.141186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 12/07/2023] [Accepted: 01/09/2024] [Indexed: 01/14/2024]
Abstract
Increased use of bioplastics, such as polylactic acid (PLA), helps in reducing greenhouse gas emissions, decreases energy consumption and lowers pollution, but its degradation efficiency has much room for improvement. The degradation rate of electrospun PLA fibers of varying diameters ranging from 0.15 to 1.33 μm is measured during hydrolytic degradation under different pH from 5.5 to 10, and during aerobic biodegradation in seawater supplemented with activated sewage sludge. In hydrolytic conditions, varying PLA fiber diameter had significant influence over percentage weight loss (W%L), where faster degradation was achieved for PLA fibers with smaller diameter. W%L was greatest for PLA-5 > PLA-12 > PLA-16 > PLA-20, with average W%L at 30.7%, 27.8%, 17.2% and 14.3% respectively. While different pH environment does not have a significant influence on PLA degradation, with W%L only slightly higher for basic environments. Similarly biodegradation displayed faster degradation for small diameter fibers with PLA-5 attaining the highest degree of biodegradation at 22.8% after 90 days. Hydrolytic degradation resulted in no significant structural change, while biodegradation resulted in significant hydroxyl end capping products on the PLA surface. Scanning electron microscopy (SEM) imaging of degraded PLA fibers showed a deteriorated morphology of PLA-5 and PLA-12 fibers with increased adhesion structures and irregularly shaped fibers, while a largely unmodified morphology for PLA-16 and PLA-20.
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Affiliation(s)
- Xiang Yun Debbie Soo
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, #08-03, Singapore, 138634, Singapore
| | - Linran Jia
- School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore; Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, 1 Cleantech Loop, Singapore, 637141, Singapore
| | - Qi Feng Lim
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, #08-03, Singapore, 138634, Singapore
| | - Ming Hui Chua
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore, 627833, Singapore
| | - Suxi Wang
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, #08-03, Singapore, 138634, Singapore
| | - Hui Kim Hui
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, #08-03, Singapore, 138634, Singapore
| | - Jia Min Regine See
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Yunjie Chen
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, #08-03, Singapore, 138634, Singapore
| | - Jiuwei Li
- School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore; Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, 1 Cleantech Loop, Singapore, 637141, Singapore
| | - Fengxia Wei
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, #08-03, Singapore, 138634, Singapore
| | - Nikodem Tomczak
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, #08-03, Singapore, 138634, Singapore
| | - Junhua Kong
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, #08-03, Singapore, 138634, Singapore
| | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, #08-03, Singapore, 138634, Singapore; Department of Material Science and Engineering, National University of Singapore, 9 Engineering Drive 1, #03-09 EA, Singapore, 117575, Singapore.
| | - Xunchang Fei
- School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore; Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, 1 Cleantech Loop, Singapore, 637141, Singapore.
| | - Qiang Zhu
- Institute of Materials Research and Engineering (IMRE), Agency for Science, Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, #08-03, Singapore, 138634, Singapore; School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore; Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore, 627833, Singapore.
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9
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Liang C, Li J, Chen Y, Ke L, Zhu J, Zheng L, Li XP, Zhang S, Li H, Zhong GJ, Xu H. Self-Charging, Breathable, and Antibacterial Poly(lactic acid) Nanofibrous Air Filters by Surface Engineering of Ultrasmall Electroactive Nanohybrids. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 38048182 DOI: 10.1021/acsami.3c13825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
Despite the great promise in the development of biodegradable and ecofriendly air filters by electrospinning of poly(lactic acid) (PLA) nanofibrous membranes (NFMs), the as-electrospun PLA nanofibers are generally characterized by poor electroactivity and smooth surface, challenging the exploitation of electrostatic adsorption and physical interception that are in need for efficient removal of pathogens and particulate matters (PMs). Herein, a combined "electrospinning-electrospray" strategy was disclosed to functionalize the PLA nanofibers by direct anchoring of highly dielectric BaTiO3@ZIF-8 nanohybrids (BTO@ZIF-8), conferring simultaneous promotion of surface roughness, electret properties (surface potential as high as 7.5 kV), and self-charging capability (∼190% increase in tribo-output voltage compared to that of pure PLA). Benefiting from the well-tailored morphology and increased electroactivity, the electrospun-electrosprayed PLA/BTO@ZIF-8 exhibited excellent PM-capturing performance (up to 96.54% for PM0.3 and 99.49% for PM2.5) while providing desirable air resistance (only 87 Pa at 32 L/min) due primarily to the slip flow of air molecules over the nanohybrid protrusions. This was accompanied by excellent antibacterial properties (99.9% inhibition against both Staphylococcus aureus and Escherichia coli), arising presumably from the synergistic effects of enhanced reactive oxygen species (ROS) generation, plentiful ion release, and surface charges. Our proposed strategy opens up pathways to afford exceptional combination of high-efficiency and low-resistance filtration, excellent antibacterial performance, and mechanical robustness without sacrificing the biodegradation profiles of PLA NFMs, holding potential implications for efficient and long-term healthcare.
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Affiliation(s)
- Chenyu Liang
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China
| | - Jiaqi Li
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China
| | - Yuyang Chen
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China
| | - Lv Ke
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Jintuo Zhu
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China
- Jiangsu Engineering Research Center of Dust Control and Occupational Protection, Xuzhou 221008, China
| | - Lina Zheng
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China
- Jiangsu Engineering Research Center of Dust Control and Occupational Protection, Xuzhou 221008, China
| | - Xiao-Peng Li
- State Key Laboratory of NBC Protection for Civilian, Institute of Chemical Defense, Beijing 100191, China
| | - Shenghui Zhang
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Heguo Li
- State Key Laboratory of NBC Protection for Civilian, Institute of Chemical Defense, Beijing 100191, China
| | - Gan-Ji Zhong
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, China
| | - Huan Xu
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
- Jiangsu Engineering Research Center of Dust Control and Occupational Protection, Xuzhou 221008, China
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Chengdu 610065, China
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10
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Nguyen TD, Roh S, Nguyen MTN, Lee JS. Structural Control of Nanofibers According to Electrospinning Process Conditions and Their Applications. MICROMACHINES 2023; 14:2022. [PMID: 38004879 PMCID: PMC10673317 DOI: 10.3390/mi14112022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/20/2023] [Accepted: 10/28/2023] [Indexed: 11/26/2023]
Abstract
Nanofibers have gained much attention because of the large surface area they can provide. Thus, many fabrication methods that produce nanofiber materials have been proposed. Electrospinning is a spinning technique that can use an electric field to continuously and uniformly generate polymer and composite nanofibers. The structure of the electrospinning system can be modified, thus making changes to the structure, and also the alignment of nanofibers. Moreover, the nanofibers can also be treated, modifying the nanofiber structure. This paper thoroughly reviews the efforts to change the configuration of the electrospinning system and the effects of these configurations on the nanofibers. Excellent works in different fields of application that use electrospun nanofibers are also introduced. The studied materials functioned effectively in their application, thereby proving the potential for the future development of electrospinning nanofiber materials.
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Affiliation(s)
| | | | | | - Jun Seop Lee
- Department of Materials Science and Engineering, Gachon University, 1342 Seongnam-Daero, Sujeong-Gu, Seongnam-Si 13120, Gyeonggi-Do, Republic of Korea; (T.D.N.); (S.R.); (M.T.N.N.)
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11
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Lin M, Shen J, Wang B, Chen Y, Zhang C, Qi H. Preparation of fluffy bimodal conjugated electrospun poly(lactic acid) air filters with low pressure drop. RSC Adv 2023; 13:30680-30689. [PMID: 37869388 PMCID: PMC10585197 DOI: 10.1039/d3ra05969c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 10/11/2023] [Indexed: 10/24/2023] Open
Abstract
Electrospun nanofiber membranes have been extensively studied as air filters. However, their limited filtration efficiency for submicron inhalable particulate matter (PM), high resistance to filtration, and limited capacity to hold dust have hindered their widespread use. The majority of materials come from petroleum, and the use of organic solvents during the spinning process has a significant negative impact on the environment. In this work, a sustainable method has been proposed for producing filters using poly(lactic acid) (PLA) with a bimodal diameter distribution through conjugated electrospinning. This technique allows for the continuous production of interconnected micro/nano hybrid porous membranes, resulting in reduced resistance and improved dust holding capacity. The filtration efficiency, pressure drop, long-term filtration performance, and actual performance of the conjugated bimodal membrane (CBM) were extensively investigated. The results indicate that the filter has a high capacity for retaining particles, with filtration efficiencies of 99.94% for PM 0.3 and 99.96% for PM 2.5. It also demonstrates a high quality factor (0.078 Pa-1 for PM 0.3 and 0.084 Pa-1 for PM 2.5), long-term stability (a decrease of 2.35% for PM 0.3 and 0.05% for PM 2.5 over a period of 60 days) and outstanding dust holding capacity (9.17 g m-2). The conjugated bimodal membrane (CBM) shows a 22.64% decrease in resistance compared to the non-conjugated bimodal membrane (BM). In general, the approach outlined in this work provides valuable insights into the development of high-performance biodegradable air filters. These filters have improved filtration efficiency and reduced resistance.
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Affiliation(s)
- Minggang Lin
- College of Textile and Apparel, Xinjiang University Urumqi 830000 Xinjiang China
- Institute of Smart & Ecological Textile, Quanzhou Normal University Fujian 362002 China
| | - Jinlin Shen
- Institute of Smart & Ecological Textile, Quanzhou Normal University Fujian 362002 China
- College of Textiles and Apparel, Quanzhou Normal University Fujian 362002 China
| | - Bingbing Wang
- Institute of Smart & Ecological Textile, Quanzhou Normal University Fujian 362002 China
- College of Textiles and Apparel, Quanzhou Normal University Fujian 362002 China
| | - Yangyi Chen
- Institute of Smart & Ecological Textile, Quanzhou Normal University Fujian 362002 China
- College of Textiles and Apparel, Quanzhou Normal University Fujian 362002 China
| | - Chuyang Zhang
- College of Textile and Apparel, Xinjiang University Urumqi 830000 Xinjiang China
- Institute of Smart & Ecological Textile, Quanzhou Normal University Fujian 362002 China
- College of Textiles and Apparel, Quanzhou Normal University Fujian 362002 China
| | - Huan Qi
- Institute of Smart & Ecological Textile, Quanzhou Normal University Fujian 362002 China
- College of Textiles and Apparel, Quanzhou Normal University Fujian 362002 China
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12
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Su X, Zhai Y, Jia C, Xu Z, Luo D, Pan Z, Xiang H, Yu S, Zhu L, Zhu M. Improved Antibacterial Properties of Polylactic Acid-Based Nanofibers Loaded with ZnO-Ag Nanoparticles through Pore Engineering. ACS APPLIED MATERIALS & INTERFACES 2023; 15:42920-42929. [PMID: 37650731 DOI: 10.1021/acsami.3c06791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
In the post-epidemic era, bio-based protective fiber materials with active protective functions are of utmost importance, not only to combat the spread of pathogens but also to reduce the environmental impact of petroleum-based protective materials. Here, efficient antibacterial polylactic acid-based (PLA-based) fibers are prepared by solution blow spinning and their pore structures are regulated by controlling the ratio of the solvent components in the spinning solutions. The porous PLA-based fibers exhibit antibacterial efficiencies of over 99% against Escherichia coli and over 98% against Bacillus subtilis, which are significantly higher than that of the nonporous PLA-based fibers. The excellent antibacterial property of the porous PLA-based fibers can be attributed to their high porosity, which allows antibacterial nanoparticles to be released more easily from the fibers, thus effectively killing pathogenic microorganisms. Moreover, pore structure regulation can also enhance the mechanical property of the PLA-based fiber materials. Our approach of regulating the microstructure and properties of the PLA-based fibers through pore engineering can be extended to other polymer fiber materials and is suitable for polymer-based composite systems that require optimal performance through sufficient exposure of doped materials.
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Affiliation(s)
- Xiaolong Su
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Yaling Zhai
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Chao Jia
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Zhe Xu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Dianfeng Luo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Zhiyi Pan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Hengxue Xiang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Senlong Yu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Liping Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
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13
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Lin X, Lin M, Li T, Lu H, Qi H, Chen T, Wu L, Zhang C. Preparation of Self-Curling Melt-Blown Fibers with Crimped Masterbatch (CM) and Its Application for Low-Pressure Air Filtration. Polymers (Basel) 2023; 15:3365. [PMID: 37631422 PMCID: PMC10459721 DOI: 10.3390/polym15163365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 08/05/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Particulate matter (PM) and airborne viruses pose significant threats to both the environment and public health. As the most viable solution to prevent the inhalation of these pollutants, there is an urgent demand for face masks with excellent filtration efficiency and low-pressure drop. In this study, a crimped masterbatch (CM) is added to polypropylene feedstocks to produce curling fibers through melt-blown spinning. These curled fibers exhibit low filtration resistance and effective dust-holding performances when used for air filtration. The effect of adding CM on fiber diameter, pore size, crimp, porosity, roughness, and surface potential was studied. The filtration performance of the materials, including the PM filtration capabilities, recirculation filtration, and loading test performance, were also investigated. The results demonstrate that the degree of fiber crimp can be adjusted by incorporating varying amounts of CM. This curling was caused by the uneven shrinkage that occurred due to variations in thermal contraction between these polymers. The curled fibers created a fluffy structure in the fiber network and modified the distribution of pore sizes within it. Under the same filtration conditions as sodium chloride aerogel, CM-2 (PP:CM 8:2) exhibited similar filtration efficiency (95.54% vs. 94.74%), lower filtration resistance (88.68 Pa vs. 108.88 Pa), higher quality factor (0.035 Pa-1 vs. 0.028 Pa-1) and better dust holding capacity (10.39 g/m2 vs. 9.20 g/m2) compared to CM-0 (PP:CM 10:0). After 30 days of indoor storage, the filtration efficiency of CM-2 remained above 94%. The self-curling melt-blown filtration material developed here could potentially be applied in the field of protective masks.
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Affiliation(s)
- Xiaofang Lin
- College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China; (X.L.); (T.C.); (L.W.)
- Institute of Smart & Ecological Textile, Quanzhou Normal University, Quanzhou 362002, China; (M.L.); (T.L.); (H.L.)
| | - Minggang Lin
- Institute of Smart & Ecological Textile, Quanzhou Normal University, Quanzhou 362002, China; (M.L.); (T.L.); (H.L.)
| | - Tan Li
- Institute of Smart & Ecological Textile, Quanzhou Normal University, Quanzhou 362002, China; (M.L.); (T.L.); (H.L.)
| | - Hao Lu
- Institute of Smart & Ecological Textile, Quanzhou Normal University, Quanzhou 362002, China; (M.L.); (T.L.); (H.L.)
| | - Huan Qi
- Institute of Smart & Ecological Textile, Quanzhou Normal University, Quanzhou 362002, China; (M.L.); (T.L.); (H.L.)
- Key Laboratory of Clothing Materials of Universities in Fujian, Quanzhou Normal University, Quanzhou 362002, China
- College of Textile and Apparel, Quanzhou Normal University, Quanzhou 362002, China
| | - Ting Chen
- College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China; (X.L.); (T.C.); (L.W.)
| | - Lili Wu
- College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China; (X.L.); (T.C.); (L.W.)
| | - Chuyang Zhang
- Institute of Smart & Ecological Textile, Quanzhou Normal University, Quanzhou 362002, China; (M.L.); (T.L.); (H.L.)
- Key Laboratory of Clothing Materials of Universities in Fujian, Quanzhou Normal University, Quanzhou 362002, China
- College of Textile and Apparel, Quanzhou Normal University, Quanzhou 362002, China
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14
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Ke L, Yang T, Liang C, Guan X, Li T, Jiao Y, Tang D, Huang D, Li S, Zhang S, He X, Xu H. Electroactive, Antibacterial, and Biodegradable Poly(lactic acid) Nanofibrous Air Filters for Healthcare. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37378641 DOI: 10.1021/acsami.3c05834] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
Poly(lactic acid) (PLA)-based nanofibrous membranes (NFMs) hold great potential in the field of biodegradable filters for air purification but are largely limited by the relatively low electret properties and high susceptibility to bacteria. Herein, we disclosed a facile approach to the fabrication of electroactive and antibacterial PLA NFMs impregnated with a highly dielectric photocatalyst. In particular, the microwave-assisted doping (MAD) protocol was employed to yield Zn-doped titanium dioxide (Zn-TIO), featuring the well-defined anatase phase, a uniform size of ∼65 nm, and decreased band gap (3.0 eV). The incorporation of Zn-TIO (2, 6, and 10 wt %) into PLA gave rise to a significant refinement of the electrospun nanofibers, decreasing from the highest diameter of 581 nm for pure PLA to the lowest value of 264 nm. More importantly, dramatical improvements in the dielectric constants, surface potential, and electret properties were simultaneously achieved for the composite NFMs, as exemplified by a nearly 94% increase in surface potential for 3-day-aged PLA/Zn-TIO (90/10) compared with that of pure PLA. The well regulation of morphological features and promotion of electroactivity contributed to a distinct increase in the air filtration performance, as demonstrated by 98.7% filtration of PM0.3 with the highest quality factor of 0.032 Pa-1 at the airflow velocity of 32 L/min for PLA/Zn-TIO (94/6), largely surpassing pure PLA (89.4%, 0.011 Pa-1). Benefiting from the effective generation of reactive radicals and gradual release of Zn2+ by Zn-TIO, the electroactive PLA NFMs were ready to profoundly inactivate Escherichia coli and Staphylococcus epidermidis. The exceptional combination of remarkable electret properties and excellent antibacterial performance makes the PLA membrane filters promising for healthcare.
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Affiliation(s)
- Lv Ke
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Ting Yang
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Chenyu Liang
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Xin Guan
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Tian Li
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Yang Jiao
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Daoyuan Tang
- Anhui Sentai WPC Group Share Co., Ltd., Guangde 242299, China
| | - Donghui Huang
- Anhui Sentai WPC Group Share Co., Ltd., Guangde 242299, China
| | - Shihang Li
- Jiangsu Key Laboratory of Coal-based Greenhouse Gas Control and Utilization, Carbon Neutrality Institute, China University of Mining and Technology, Xuzhou 221008, China
- Jiangsu Engineering Research Center of Dust Control and Occupational Protection, Xuzhou 221008, China
| | - Shenghui Zhang
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Xinjian He
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China
- Jiangsu Engineering Research Center of Dust Control and Occupational Protection, Xuzhou 221008, China
| | - Huan Xu
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
- Jiangsu Engineering Research Center of Dust Control and Occupational Protection, Xuzhou 221008, China
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15
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Cimini A, Imperi E, Picano A, Rossi M. Electrospun nanofibers for medical face mask with protection capabilities against viruses: State of the art and perspective for industrial scale-up. APPLIED MATERIALS TODAY 2023; 32:101833. [PMID: 37152683 PMCID: PMC10151159 DOI: 10.1016/j.apmt.2023.101833] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 04/13/2023] [Accepted: 04/25/2023] [Indexed: 05/09/2023]
Abstract
Face masks have proven to be a useful protection from airborne viruses and bacteria, especially in the recent years pandemic outbreak when they effectively lowered the risk of infection from Coronavirus disease (COVID-19) or Omicron variants, being recognized as one of the main protective measures adopted by the World Health Organization (WHO). The need for improving the filtering efficiency performance to prevent penetration of fine particulate matter (PM), which can be potential bacteria or virus carriers, has led the research into developing new methods and techniques for face mask fabrication. In this perspective, Electrospinning has shown to be the most efficient technique to get either synthetic or natural polymers-based fibers with size down to the nanoscale providing remarkable performance in terms of both particle filtration and breathability. The aim of this Review is to give further insight into the implementation of electrospun nanofibers for the realization of the next generation of face masks, with functionalized membranes via addiction of active material to the polymer solutions that can give optimal features about antibacterial, antiviral, self-sterilization, and electrical energy storage capabilities. Furthermore, the recent advances regarding the use of renewable materials and green solvent strategies to improve the sustainability of electrospun membranes and to fabricate eco-friendly filters are here discussed, especially in view of the large-scale nanofiber production where traditional membrane manufacturing may result in a high environmental and health risk.
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Affiliation(s)
- A Cimini
- Department of Basic and Applied Sciences for Engineering, University of Rome Sapienza, Rome 00161, Italy
- LABOR s.r.l., Industrial Research Laboratory, Via Giacomo Peroni, 386, Rome, Italy
| | - E Imperi
- LABOR s.r.l., Industrial Research Laboratory, Via Giacomo Peroni, 386, Rome, Italy
| | - A Picano
- LABOR s.r.l., Industrial Research Laboratory, Via Giacomo Peroni, 386, Rome, Italy
| | - M Rossi
- Department of Basic and Applied Sciences for Engineering, University of Rome Sapienza, Rome 00161, Italy
- Research Center for Nanotechnology for Engineering of Sapienza (CNIS), University of Rome Sapienza, Rome 00185, Italy
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16
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Tang M, Jiang L, Wang C, Li X, He X, Li Y, Liu C, Wang Y, Gao J, Xu H. Bioelectrets in Electrospun Bimodal Poly(lactic acid) Fibers: Realization of Multiple Mechanisms for Efficient and Long-Term Filtration of Fine PMs. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37192220 DOI: 10.1021/acsami.3c02365] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Despite the great potential in fabrication of biodegradable and eco-friendly air filters by electrospinning poly(lactic acid) (PLA) membranes, the filtering performance is frequently dwarfed by inadequate physical sieving or electrostatic adsorption mechanisms to capture airborne particulate matters (PMs). Here, using the parallel spinning approach, the unique micro/nanoscale architecture was established by conjugation of neighboring PLA nanofibers, creating bimodal fibers in electrospun PLA membranes for the enhanced slip effect to significantly reduce the air resistance. Moreover, the bone-like nanocrystalline hydroxyapatite bioelectret (HABE) was exploited to enhance the dielectric and polarization properties of electrospun PLA, accompanied by the controlled generation of junctions induced by the microaggregation of HABE (10-30 wt %). The incorporated HABE was supposed to orderly align in the applied E-field and largely promote the charging capability and surface potential, gradually increasing to 7.2 kV from the lowest level of 2.5 kV for pure PLA. This was mainly attributed to HABE-induced orientation of PLA backbone chains and C═O dipoles, as well as the interfacial charges trapped at the interphases of HABE-PLA and crystalline region-amorphous PLA. Given the multiple capturing mechanisms, the micro/nanostructured PLA/HABE membranes were characterized by excellent and sustainable filtering performance, e.g., the filtration efficiency of PM0.3 was promoted from 59.38% for pure PLA to 94.38% after addition of 30 wt % HABE at a moderate airflow capacity of 32 L/min and from 30.78 to 83.75% at the highest level of 85 L/min. It is of interest that the pressure drop was significantly decreased, mainly arising from the slip effect between the ultrafine nanofibers and conjugated microfibers. The proposed combination of the nanostructured electret and the multistructuring strategy offers the function integration of efficient filtration and low resistance that are highly useful to pursue fully biodegradable filters.
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Affiliation(s)
- Mengke Tang
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Liang Jiang
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Cunmin Wang
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China
| | - Xinyu Li
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China
| | - Xinjian He
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China
| | - Yichen Li
- Dulwich International High School Suzhou, Suzhou 215021, China
| | - Changhui Liu
- School of Low-Carbon Energy and Power Engineering, China University of Mining and Technology, Xuzhou 221116, China
| | - Yanqing Wang
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
| | - Jiefeng Gao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 272100, China
| | - Huan Xu
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
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17
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Lee SY, Kim JT, Chathuranga K, Lee JS, Park SW, Park WH. Tannic-Acid-Enriched Poly(vinyl alcohol) Nanofibrous Membrane as a UV-Shie lding and Antibacterial Face Mask Filter Material. ACS APPLIED MATERIALS & INTERFACES 2023; 15:20435-20443. [PMID: 37053446 DOI: 10.1021/acsami.3c02408] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Face masks are increasingly important in the battle against infectious diseases and air pollution. Nanofibrous membranes (NFMs) are promising filter layers for removing particulate matter (PM) without restricting air permeability. In this study, tannic-acid-enriched poly(vinyl alcohol) (PVA-TA) NFMs were fabricated by electrospinning PVA solutions containing large amounts of tannic acid (TA), a multifunctional polyphenol compound. We were able to prepare uniform electrospinning solution without coacervate formation by inhibiting the robust hydrogen bonding between PVA and TA. Notably, the NFM maintained its fibrous structure even under moist conditions after heat treatment without the use of a cross-linking agent. Further, the mechanical strength and thermal stability of the PVA NFM were improved by the introduction of TA. The functional PVA NFM with a high TA content showed excellent UV-shielding (UV-A: 95.7%, UV-B: 100%) and antibacterial activity against Escherichia coli (inhibition zone: 8.7 ± 1.2 mm) and Staphylococcus aureus (inhibition zone: 13.7 ± 0.6 mm). Moreover, the particle filtration efficiency of the PVA-TA NFM for PM0.6 particles was 97.7% at 32 L min-1 and 99.5% at 85 L min-1, indicating excellent filtration performance and a low pressure drop. Therefore, the TA-enriched PVA NFM is a promising mask filter layer material with excellent UV-blocking and antibacterial properties and has the potential for various practical applications.
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Affiliation(s)
- Su Yeon Lee
- Department of Organic Materials Engineering, College of Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jun Tae Kim
- Department of Organic Materials Engineering, College of Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Kiramage Chathuranga
- Department of Veterinary Microbiology, College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jong Soo Lee
- Department of Veterinary Microbiology, College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Se Won Park
- Hybe Co., Ltd., 85, Sandan-ro 68 Beon-gil, Danwon-gu, Ansan-si 15434, Gyeonggi-do, Republic of Korea
| | - Won Ho Park
- Department of Organic Materials Engineering, College of Engineering, Chungnam National University, Daejeon 34134, Republic of Korea
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18
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Wang Q, Chen X, Zeng S, Chen P, Xu Y, Nie W, Xia R, Zhou Y. In-situ polycondensate-coated cellulose nanofiber heterostructure for polylactic acid-based composites with superior mechanical and thermal properties. Int J Biol Macromol 2023; 240:124515. [PMID: 37085066 DOI: 10.1016/j.ijbiomac.2023.124515] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/31/2023] [Accepted: 04/15/2023] [Indexed: 04/23/2023]
Abstract
Renewable yet biodegradable natural fiber (e.g., cellulose nanofiber (CNF)) reinforced bio-based polymers (e.g., polylactic acid (PLA)) are being applied for the manufacture of clean packaging products. The interface incompatibility between hydrophilic CNF and hydrophobic PLA still restricts the promotion of high-performance bio-based products. Herein, a polycondensate-coated CNF hybrid, wherein silane, aluminate, and titanate coupling agent monomers were in-situ polymerized onto the CNF surface via dehydration self-condensation, was designed and further employed as strengthening/toughening nanofillers for fabricating the CNF-reinforced PLA composite. Results showed that the polycondensate coatings could efficiently promote the dispersion of CNFs and enhance interfacial compatibility between CNFs and PLA. Attributing to the synergistic effect of polycondensate coatings and CNFs, a considerable improvement in processing, mechanical and thermal properties was obtained in resultant CNF/PLA composites. With adding 2.5 wt% polycondensate-coated CNFs, the tensile strength, Young's modulus, and tensile toughness of CNF-reinforced PLA composites was raised by about 27 %, 51 % and 68 %, respectively; also, such composite possessed greater elasticity and higher melt strength than pure PLA. This study provides a novel interface control strategy to fabricate low-cost yet high-performance PLA-based composites for sustainable packaging application.
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Affiliation(s)
- Qiming Wang
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry & Chemical Engineering, Anhui University, Hefei 230601, China
| | - Xinyi Chen
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry & Chemical Engineering, Anhui University, Hefei 230601, China
| | - Shaohua Zeng
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry & Chemical Engineering, Anhui University, Hefei 230601, China.
| | - Pengpeng Chen
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry & Chemical Engineering, Anhui University, Hefei 230601, China
| | - Ying Xu
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry & Chemical Engineering, Anhui University, Hefei 230601, China
| | - Wangyan Nie
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry & Chemical Engineering, Anhui University, Hefei 230601, China
| | - Ru Xia
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry & Chemical Engineering, Anhui University, Hefei 230601, China
| | - Yifeng Zhou
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry & Chemical Engineering, Anhui University, Hefei 230601, China.
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19
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Liu X, Jiang D, Qin Y, Zhang Z, Yuan M. ZnO-PLLA/PLLA Preparation and Application in Air Filtration by Electrospinning Technology. Polymers (Basel) 2023; 15:polym15081906. [PMID: 37112053 PMCID: PMC10146834 DOI: 10.3390/polym15081906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/09/2023] [Accepted: 04/14/2023] [Indexed: 04/29/2023] Open
Abstract
With the increasing environmental pollution caused by disposable masks, it is crucial to develop new degradable filtration materials for medical masks. ZnO-PLLA/PLLA (L-lactide) copolymers prepared from nano ZnO and L-lactide were used to prepare fiber films for air filtration by electrospinning technology. Structural characterization of ZnO-PLLA by H-NMR, XPS, and XRD demonstrated that ZnO was successfully grafted onto PLLA. An L9(43) standard orthogonal array was employed to evaluate the effects of the ZnO-PLLA concentration, ZnO-PLLA/PLLA content, DCM(dichloromethane) to DMF(N,N-dimethylformamide) ratio, and spinning time on the air filtration capacity of ZnO-PLLA/PLLA nanofiber films. It is noteworthy that the introduction of ZnO is important for the enhancement of the quality factor (QF). The optimal group obtained was sample No. 7, where the QF was 0.1403 Pa-1, the particle filtration efficiency (PFE) was 98.3%, the bacteria filtration efficiency (BFE) was 98.42%, and the airflow resistance (Δp) was 29.2 Pa. Therefore, the as-prepared ZnO-PLLA/PLLA film has potential for the development of degradable masks.
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Affiliation(s)
- Xinxin Liu
- Green Preparation Technology of Biobased Materials National & Local Joint Engineering Research Center, Yunnan Minzu University, Kunming 650500, China
| | - Dengbang Jiang
- Green Preparation Technology of Biobased Materials National & Local Joint Engineering Research Center, Yunnan Minzu University, Kunming 650500, China
| | - Yuyue Qin
- Institute of Agriculture and Food Engineering, Kunming University of Science and Technology, Kunming 650550, China
| | - Zhihong Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Mingwei Yuan
- Green Preparation Technology of Biobased Materials National & Local Joint Engineering Research Center, Yunnan Minzu University, Kunming 650500, China
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20
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Preparation of niacinamide imprinted starch-based biomaterials for treating of hyperpigmentation. Int J Biol Macromol 2023; 232:123382. [PMID: 36693604 DOI: 10.1016/j.ijbiomac.2023.123382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 12/28/2022] [Accepted: 01/18/2023] [Indexed: 01/22/2023]
Abstract
The aim of this study was to prepare niacinamide (NA) imprinted biomaterials for treating hyperpigmentation using mungbean starch (MS), PVA, and plasticizers (glycerol (GL) and citric acid (CA)). Biomaterials and NA were characterized by FE-SEM, FT-IR, and 1H NMR. To evaluate the applicability of the NA imprinted biomaterials for a transdermal drug delivery system (TDDS), NA release experiment was conducted in different pH and temperature conditions. Results of NA release properties indicated that NA was released about 99 % rapidly in the initial 10 min. NA release in low pH and high temperature was also higher than that in high pH and low temperature. The determination of experimental conditions and the analysis of NA release results were achieved using response surface methodology (RSM). Results of NA release using artificial skin indicated that NA release from NA imprinted biomaterials was increased at a relatively steady rate for 90 min. To verify for treating hyperpigmentation of the prepared biomaterials, tyrosinase inhibitory and antioxidant inhibitory were performed. Results indicated that NA imprinted biomaterials with the addition of CA exhibited 55.8 % of tyrosinase inhibitory and 73.0 % of antioxidant inhibitory. In addition, their ability to inhibit melanin synthesis in B16F10 cells was evaluated.
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21
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Bioactive-loaded nanovesicles embedded within electrospun plant protein nanofibers; a double encapsulation technique. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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22
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Espinoza-Montero PJ, Montero-Jiménez M, Rojas-Quishpe S, Alcívar León CD, Heredia-Moya J, Rosero-Chanalata A, Orbea-Hinojosa C, Piñeiros JL. Nude and Modified Electrospun Nanofibers, Application to Air Purification. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13030593. [PMID: 36770554 PMCID: PMC9919942 DOI: 10.3390/nano13030593] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 01/24/2023] [Accepted: 01/29/2023] [Indexed: 05/17/2023]
Abstract
Air transports several pollutants, including particulate matter (PM), which can produce cardiovascular and respiratory diseases. Thus, it is a challenge to control pollutant emissions before releasing them to the environment. Until now, filtration has been the most efficient processes for removing PM. Therefore, the electrospinning procedure has been applied to obtain membranes with a high filtration efficiency and low pressure drop. This review addressed the synthesis of polymers that are used for fabricating high-performance membranes by electrospinning to remove air pollutants. Then, the most influential parameters to produce electrospun membranes are indicated. The main results show that electrospun membranes are an excellent alternative to having air filters due to the versatility of the process, the capacity for controlling the fiber diameter, porosity, high filtration efficiency and low-pressure drop.
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Affiliation(s)
- Patricio J. Espinoza-Montero
- Escuela de Ciencia Químicas, Pontificia Universidad Católica del Ecuador, Quito 17012184, Ecuador
- Correspondence: ; Tel.: +593-2299-1700 (ext. 1929)
| | - Marjorie Montero-Jiménez
- Escuela de Ciencia Químicas, Pontificia Universidad Católica del Ecuador, Quito 17012184, Ecuador
| | - Stalin Rojas-Quishpe
- Facultad de Ciencias Químicas, Universidad Central del Ecuador, Quito 170521, Ecuador
| | | | - Jorge Heredia-Moya
- Centro de Investigación Biomédica (CENBIO), Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito 170527, Ecuador
| | - Alfredo Rosero-Chanalata
- Escuela de Ciencia Químicas, Pontificia Universidad Católica del Ecuador, Quito 17012184, Ecuador
- Facultad de Ciencias Químicas, Universidad Central del Ecuador, Quito 170521, Ecuador
| | - Carlos Orbea-Hinojosa
- Departamento de Ciencias Exactas, Universidad de Las Fuerzas Armadas ESPE, Av. Gral. Rumiñahui S/N, Sangolquí P.O. Box 171-5-231B, Ecuador
| | - José Luis Piñeiros
- Escuela de Ciencia Químicas, Pontificia Universidad Católica del Ecuador, Quito 17012184, Ecuador
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23
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Passos de Oliveira Santos R, Hao J, Daniel de Mello Innocentini M, Frollini E, Savastano Junior H, Rutledge GC. Composite electrospun membranes based on polyacrylonitrile and cellulose nanofibrils: relevant properties for their use as active filter layers. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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24
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Shen R, Guo Y, Wang S, Tuerxun A, He J, Bian Y. Biodegradable Electrospun Nanofiber Membranes as Promising Candidates for the Development of Face Masks. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:1306. [PMID: 36674061 PMCID: PMC9858797 DOI: 10.3390/ijerph20021306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 12/29/2022] [Accepted: 01/04/2023] [Indexed: 06/17/2023]
Abstract
Aerosol particles, such as the widespread COVID-19 recently, have posed a great threat to humans. Combat experience has proven that masks can protect against viruses; however, the epidemic in recent years has caused serious environmental pollution from plastic medical supplies, especially masks. Degradable filters are promising candidates to alleviate this problem. Degradable nanofiber filters, which are developed by the electrospinning technique, can achieve superior filtration performance. This review focuses on the basic introduction to air filtration, the general aspects of face masks, and nanofibers. Furthermore, the progress of the state of art degradable electrospun nanofiber filters have been summarized, such as silk fibroin (SF), polylactic acid (PLA), chitosan, cellulose, and zein. Finally, the challenges and future development are highlighted.
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Affiliation(s)
| | | | | | | | | | - Ye Bian
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
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25
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Zhang X, Xu Y, Zeng Y. Efficient, Breathable and Biodegradable Filter Media for Face Masks. FIBERS AND POLYMERS 2023; 24:1613-1621. [PMCID: PMC10071238 DOI: 10.1007/s12221-023-00178-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 03/09/2023] [Accepted: 03/21/2023] [Indexed: 09/03/2023]
Abstract
The global outbreak of COVID-19 results in the surge of disposable sanitary supplies, especially personal protective face masks. However, the charge dissipation of the electret meltblown nonwovens, which predominate in the commercial face mask filters, confines the durability and safety of commercial face masks. Furthermore, most of the face masks are made from nondegradable materials (such as PP) or part of their degradation products are toxic and contaminative to the environment. Herein, a type of face mask with biodegradable and highly effective PLA bi-layer complex fibrous membrane as filter core is reported. The prepared PLA complex membrane possesses a high-filtration efficiency of 99.1% for PM0.3 while providing a favorable pressure drop of 93.2 Pa. With the PLA complex membrane as the filter core, our face mask exhibits comparable or even higher wearability to commercial face masks, which further manifests our designed PLA complex membrane a promising filter media for face masks.
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Affiliation(s)
- Xiaomin Zhang
- College of Textiles, Donghua University, Shanghai, 201620 China
| | - Yuanqiang Xu
- College of Textiles, Donghua University, Shanghai, 201620 China
| | - Yongchun Zeng
- College of Textiles, Donghua University, Shanghai, 201620 China
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26
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Muniz NO, Gabut S, Maton M, Odou P, Vialette M, Pinon A, Neut C, Tabary N, Blanchemain N, Martel B. Electrospun Filtering Membrane Designed as Component of Self-Decontaminating Protective Masks. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 13:9. [PMID: 36615926 PMCID: PMC9823851 DOI: 10.3390/nano13010009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 12/13/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
The 2019 coronavirus outbreak and worsening air pollution have triggered the search for manufacturing effective protective masks preventing both particulate matter and biohazard absorption through the respiratory tract. Therefore, the design of advanced filtering textiles combining efficient physical barrier properties with antimicrobial properties is more newsworthy than ever. The objective of this work was to produce a filtering electrospun membrane incorporating a biocidal agent that would offer both optimal filtration efficiency and fast deactivation of entrapped viruses and bacteria. After the eco-friendly electrospinning process, polyvinyl alcohol (PVA) nanofibers were stabilized by crosslinking with 1,2,3,4-butanetetracarboxylic acid (BTCA). To compensate their low mechanical properties, nanofiber membranes with variable grammages were directly electrospun on a meltblown polypropylene (PP) support of 30 g/m2. The results demonstrated that nanofibers supported on PP with a grammage of around only 2 g/m2 presented the best compromise between filtration efficiencies of PM0.3, PM0.5, and PM3.0 and the pressure drop. The filtering electrospun membranes loaded with benzalkonium chloride (ADBAC) as a biocidal agent were successfully tested against E. coli and S. aureus and against human coronavirus strain HCoV-229E. This new biocidal filter based on electrospun nanofibers supported on PP nonwoven fabric could be a promising solution for personal and collective protection in a pandemic context.
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Affiliation(s)
- Nathália Oderich Muniz
- UMET—Unité Matériaux et Transformations, University of Lille, CNRS, INRAE, Centrale Lille, UMR 8207, 59650 Villeneuve d’Ascq, France
| | - Sarah Gabut
- UMET—Unité Matériaux et Transformations, University of Lille, CNRS, INRAE, Centrale Lille, UMR 8207, 59650 Villeneuve d’Ascq, France
| | - Mickael Maton
- University of Lille, INSERM, CHU Lille, U1008—Advanced Drug Delivery Systems, 59000 Lille, France
| | - Pascal Odou
- ULR 7365—GRITA—Groupe de Recherche sur les Formes Injectables et les Technologies Associées, University of Lille, CHU Lille F-59000, 59006 Lille, France
| | - Michèle Vialette
- Institut Pasteur de Lille, Unité de Sécurité Microbiologique, 59000 Lille, France
| | - Anthony Pinon
- Institut Pasteur de Lille, Unité de Sécurité Microbiologique, 59000 Lille, France
| | - Christel Neut
- Institute for Translational Research in Inflammation, University of Lille, INSERM, CHU Lille, U1286, 59045 Lille, France
| | - Nicolas Tabary
- UMET—Unité Matériaux et Transformations, University of Lille, CNRS, INRAE, Centrale Lille, UMR 8207, 59650 Villeneuve d’Ascq, France
| | - Nicolas Blanchemain
- University of Lille, INSERM, CHU Lille, U1008—Advanced Drug Delivery Systems, 59000 Lille, France
| | - Bernard Martel
- UMET—Unité Matériaux et Transformations, University of Lille, CNRS, INRAE, Centrale Lille, UMR 8207, 59650 Villeneuve d’Ascq, France
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27
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Syed MH, Zahari MAKM, Khan MMR, Beg MDH, Abdullah N. An overview on recent biomedical applications of biopolymers: Their role in drug delivery systems and comparison of major systems. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.104121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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28
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Li X, Lin Y, Liu M, Meng L, Li C. A review of research and application of polylactic acid composites. J Appl Polym Sci 2022. [DOI: 10.1002/app.53477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Affiliation(s)
- Xiangrui Li
- Key Laboratory of Wood Materials Science and Engineering, School of Materials Science and Engineering Beihua University Jilin China
| | - Yu Lin
- Key Laboratory of Wood Materials Science and Engineering, School of Materials Science and Engineering Beihua University Jilin China
| | - Mingli Liu
- Key Laboratory of Wood Materials Science and Engineering, School of Materials Science and Engineering Beihua University Jilin China
| | - Lipeng Meng
- Forestry Resource Utilization Institute Jilin Forestry Scientific Research Institute Jilin China
| | - Chunfeng Li
- Key Laboratory of Wood Materials Science and Engineering, School of Materials Science and Engineering Beihua University Jilin China
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29
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Kara Y, Molnár K. Decomposition Behavior of Stereocomplex PLA Melt-Blown Fine Fiber Mats in Water and in Compost. JOURNAL OF POLYMERS AND THE ENVIRONMENT 2022; 31:1398-1414. [PMID: 36465497 PMCID: PMC9703430 DOI: 10.1007/s10924-022-02694-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 11/15/2022] [Indexed: 06/17/2023]
Abstract
UNLABELLED This study introduces systematic and comparative investigations of various PLA fine fiber mats prepared by melt blowing. A series of PLLA and PDLA melt-blown fibers from various L and D enantiomers blends were produced. Their morphological, mechanical, and thermal properties were studied, and their decomposition in water and compost was investigated. It was found that the 1:1 ratio blend with stereocomplex crystals had an 80% lower average fiber diameter, 60% higher specific strength and better thermal stability than the PLLA and PDLA fiber mats. In the case of composting, the crystalline peak melting temperature, crystallinity, and thermogravimetric decomposition temperatures marginally decreased after 14 days. The high surface of the fine fiber mats played a crucial role in fast decomposition, as they entirely disintegrated in less than only 40 days. In the case of water, the homocrystalline domains were more susceptible to hydrolysis than the stereocomplex ones. All the PLA fiber mats underwent decomposition and extensive disintegration for 70 days in water. Hydrolysis reduced the amorphous and crystalline fraction of the fibers via surface and bulk erosion, while the decomposition of stereocomplex-crystalline-rich domains mainly exhibited surface erosion. Findings revealed that high porosity and the high surface area of PLA melt-blown fine fiber mats undergo fast decomposition in compost and in water. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s10924-022-02694-w.
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Affiliation(s)
- Yahya Kara
- Faculty of Mechanical Engineering, Department of Polymer Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3, Budapest, H-1111 Hungary
| | - Kolos Molnár
- Faculty of Mechanical Engineering, Department of Polymer Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3, Budapest, H-1111 Hungary
- MTA–BME Research Group for Composite Science and Technology, Műegyetem rkp. 3, Budapest, H- 1111 Hungary
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30
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Cho Y, Son Y, Ahn J, Lim H, Ahn S, Lee J, Bae PK, Kim ID. Multifunctional Filter Membranes Based on Self-Assembled Core-Shell Biodegradable Nanofibers for Persistent Electrostatic Filtration through the Triboelectric Effect. ACS NANO 2022; 16:19451-19463. [PMID: 36374248 DOI: 10.1021/acsnano.2c09165] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The massive production of polymer-based respiratory masks during the COVID-19 pandemic has rekindled the issue of environmental pollution from nonrecyclable plastic waste. To mitigate this problem, conventional filters should be redesigned with improved filtration performance over the entire operational life while also being naturally degradable at the end. Herein, we developed a functional and biodegradable polymeric filter membrane consisting of a polybutylene adipate terephthalate (PBAT) matrix blended with cetyltrimethylammonium bromide (CTAB) and montmorillonite (MMT) clay, whose surface properties have been modified through cation exchange reactions for good miscibility with PBAT in an organic solvent. Particularly, the spontaneous evolution of a partial core-shell structure (i.e., PBAT core encased by CTAB-MMT shell) during the electrospinning process amplified the triboelectric effect as well as the antibacterial/antiviral activity that was not observed in naive PBAT. Unlike the conventional face mask filter that relies on the electrostatic adsorption mechanism, which deteriorates over time and/or due to external environmental factors, the PBAT@CTAB-MMT nanofiber membrane (NFM)-based filter continuously retains electrostatic charges on the surface due to the triboelectric effect of CTAB-MMT. As a result, the PBAT@CTAB-MMT NFM-based filter showed high filtration efficiencies (98.3%, PM0.3) even at a low differential pressure of 40 Pa or less over its lifetime. Altogether, we not only propose an effective and practical solution to improve the performance of filter membranes while minimizing their environmental footprint but also provide valuable insight into the synergetic functionalities of organic-inorganic hybrid materials for applications beyond filter membranes.
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Affiliation(s)
- Yujang Cho
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon34141, Republic of Korea
| | - Yongkoo Son
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon34141, Republic of Korea
| | - Jaewan Ahn
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon34141, Republic of Korea
| | - Haeseong Lim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon34141, Republic of Korea
| | - Seongcheol Ahn
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon34141, Republic of Korea
| | - Jiyoung Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon34141, Republic of Korea
| | - Pan Kee Bae
- BioNano Health Guard Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon34141, Republic of Korea
| | - Il-Doo Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon34141, Republic of Korea
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31
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Bian Y, Zhang C, Wang H, Cao Q. Degradable Nanofiber for Eco-friendly Air Filtration: Progress and Perspectives. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Sun N, Shao W, Zheng J, Zhang Y, Li J, Liu S, Wang K, Niu J, Li B, Gao Y, Liu F, Jiang H, He J. Fabrication of fully degradable branched poly (lactic acid) nanofiber membranes for high‐efficiency filter paper materials. J Appl Polym Sci 2022. [DOI: 10.1002/app.53186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ning Sun
- Textile and Garment Industry of Research Institute Zhongyuan University of Technology Zhengzhou People's Republic of China
- International Joint Laboratory of New Textile Materials and Textiles of Henan Province Zhengzhou People's Republic of China
| | - Weili Shao
- Textile and Garment Industry of Research Institute Zhongyuan University of Technology Zhengzhou People's Republic of China
- International Joint Laboratory of New Textile Materials and Textiles of Henan Province Zhengzhou People's Republic of China
| | - Jin Zheng
- Innovation and Entrepreneurship Academy Zhongyuan University of Technology Zhengzhou Henan Province People's Republic of China
| | - Yuting Zhang
- Textile and Garment Industry of Research Institute Zhongyuan University of Technology Zhengzhou People's Republic of China
- International Joint Laboratory of New Textile Materials and Textiles of Henan Province Zhengzhou People's Republic of China
| | - Junli Li
- Textile and Garment Industry of Research Institute Zhongyuan University of Technology Zhengzhou People's Republic of China
- International Joint Laboratory of New Textile Materials and Textiles of Henan Province Zhengzhou People's Republic of China
| | - Simeng Liu
- Textile and Garment Industry of Research Institute Zhongyuan University of Technology Zhengzhou People's Republic of China
- International Joint Laboratory of New Textile Materials and Textiles of Henan Province Zhengzhou People's Republic of China
| | - Kai Wang
- Textile and Garment Industry of Research Institute Zhongyuan University of Technology Zhengzhou People's Republic of China
- International Joint Laboratory of New Textile Materials and Textiles of Henan Province Zhengzhou People's Republic of China
| | - Jingyi Niu
- Textile and Garment Industry of Research Institute Zhongyuan University of Technology Zhengzhou People's Republic of China
- International Joint Laboratory of New Textile Materials and Textiles of Henan Province Zhengzhou People's Republic of China
| | - Bo Li
- Textile and Garment Industry of Research Institute Zhongyuan University of Technology Zhengzhou People's Republic of China
- International Joint Laboratory of New Textile Materials and Textiles of Henan Province Zhengzhou People's Republic of China
| | - Yanfei Gao
- Textile and Garment Industry of Research Institute Zhongyuan University of Technology Zhengzhou People's Republic of China
- International Joint Laboratory of New Textile Materials and Textiles of Henan Province Zhengzhou People's Republic of China
| | - Fan Liu
- Textile and Garment Industry of Research Institute Zhongyuan University of Technology Zhengzhou People's Republic of China
- International Joint Laboratory of New Textile Materials and Textiles of Henan Province Zhengzhou People's Republic of China
| | - Huadong Jiang
- Jiangxi Zhanghu Medical Technology Co., Ltd Fuzhou People's Republic of China
| | - Jianxin He
- Textile and Garment Industry of Research Institute Zhongyuan University of Technology Zhengzhou People's Republic of China
- International Joint Laboratory of New Textile Materials and Textiles of Henan Province Zhengzhou People's Republic of China
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Vatanpour V, Dehqan A, Paziresh S, Zinadini S, Zinatizadeh AA, Koyuncu I. Polylactic acid in the fabrication of separation membranes: A review. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121433] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Rocha ALF, de Aguiar Nunes RZ, Matos RS, da Fonseca Filho HD, de Araújo Bezerra J, Lima AR, Guimarães FEG, Pamplona AMSR, Majolo C, de Souza MG, Campelo PH, Ţălu Ş, Bagnato VS, Inada NM, Sanches EA. Alternative Controlling Agent of Theobroma grandiflorum Pests: Nanoscale Surface and Fractal Analysis of Gelatin/PCL Loaded Particles Containing Lippia origanoides Essential Oil. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2712. [PMID: 35957144 PMCID: PMC9370742 DOI: 10.3390/nano12152712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 08/05/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
A new systematic structural study was performed using the Atomic Force Microscopy (AFM) reporting statistical parameters of polymeric particles based on gelatin and poly-ε-caprolactone (PCL) containing essential oil from Lippia origanoides. The developed biocides are efficient alternative controlling agents of Conotrachelus humeropictus and Moniliophtora perniciosa, the main pests of Theobroma grandiflorum. Our results showed that the particles morphology can be successfully controlled by advanced stereometric parameters, pointing to an appropriate concentration of encapsulated essential oil according to the particle surface characteristics. For this reason, the absolute concentration of 1000 µg·mL-1 (P1000 system) was encapsulated, resulting in the most suitable surface microtexture, allowing a faster and more efficient essential oil release. Loaded particles presented zeta potential around (-54.3 ± 2.3) mV at pH = 8, and particle size distribution ranging from 113 to 442 nm. The hydrodynamic diameter of 90% of the particle population was found to be up to (405 ± 31) nm in the P1000 system. The essential oil release was evaluated up to 80 h, with maximum release concentrations of 63% and 95% for P500 and P1000, respectively. The best fit for the release profiles was obtained using the Korsmeyer-Peppas mathematical model. Loaded particles resulted in 100% mortality of C. humeropictus up to 48 h. The antifungal tests against M. perniciosa resulted in a minimum inhibitory concentration of 250 µg·mL-1, and the P1000 system produced growth inhibition up to 7 days. The developed system has potential as alternative controlling agent, due to its physical stability, particle surface microtexture, as well as pronounced bioactivity of the encapsulated essential oil.
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Affiliation(s)
- Ana Luisa Farias Rocha
- Laboratory of Nanostructured Polymers (NANOPOL), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
- Graduate Program in Materials Science and Engineering (PPGCEM), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
| | - Ronald Zico de Aguiar Nunes
- Laboratory of Nanostructured Polymers (NANOPOL), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
| | - Robert Saraiva Matos
- Amazonian Materials Group, Federal University of Amapá (UNIFAP), Macapá 68903-419, AP, Brazil
| | - Henrique Duarte da Fonseca Filho
- Graduate Program in Materials Science and Engineering (PPGCEM), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
- Laboratory of Nanomaterials Synthesis and Nanoscopy (LSNN), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
| | - Jaqueline de Araújo Bezerra
- Analytical Center, Federal Institute of Education, Science and Technology of Amazonas (IFAM), Manaus 69020-120, AM, Brazil
| | - Alessandra Ramos Lima
- São Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Carlos 13563-120, SP, Brazil
| | | | | | - Cláudia Majolo
- EMBRAPA Western Amazon, Manaus AM-010 Km 29, Manaus 69010-970, AM, Brazil
| | | | - Pedro Henrique Campelo
- Department of Food Technology, Federal University of Viçosa (UFV), Viçosa 36570-900, MG, Brazil
| | - Ştefan Ţălu
- The Directorate of Research, Development and Innovation Management (DMCDI), Technical University of Cluj-Napoca, 15 Constantin Daicoviciu St., 400020 Cluj-Napoca, Cluj County, Romania
| | - Vanderlei Salvador Bagnato
- São Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Carlos 13563-120, SP, Brazil
- Hagler Institute for Advanced Studies, Texas A&M University, College Station, TX 77843, USA
| | - Natalia Mayumi Inada
- São Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Carlos 13563-120, SP, Brazil
| | - Edgar Aparecido Sanches
- Laboratory of Nanostructured Polymers (NANOPOL), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
- Graduate Program in Materials Science and Engineering (PPGCEM), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
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Azevedo SG, Rocha ALF, de Aguiar Nunes RZ, da Costa Pinto C, Ţălu Ş, da Fonseca Filho HD, de Araújo Bezerra J, Lima AR, Guimarães FEG, Campelo PH, Bagnato VS, Inada NM, Sanches EA. Pulsatile Controlled Release and Stability Evaluation of Polymeric Particles Containing Piper nigrum Essential Oil and Preservatives. MATERIALS (BASEL, SWITZERLAND) 2022; 15:5415. [PMID: 35955350 PMCID: PMC9369902 DOI: 10.3390/ma15155415] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 07/27/2022] [Accepted: 08/02/2022] [Indexed: 06/15/2023]
Abstract
Considerable efforts have been spent on environmentally friendly particles for the encapsulation of essential oils. Polymeric particles were developed to encapsulate the essential oil from Piper nigrum based on gelatin and poly-ε-caprolactone (PCL) carriers. Gas Chromatography ((Flame Ionization Detection (GC/FID) and Mass Spectrometry (GC/MS)), Atomic Force Microscopy (AFM), Nanoparticle Tracking Analysis (NTA), Confocal Laser Scanning Microscopy (CLSM), Attenuated Total Reflectance-Fourier-transform Infrared Spectroscopy (ATR-FTIR), and Ultraviolet-Visible (UV-VIS) spectroscopy were used for the full colloidal system characterization. The essential oil was mainly composed of β-caryophyllene (~35%). The stability of the encapsulated systems was evaluated by Encapsulation Efficiency (EE%), electrical conductivity, turbidity, pH, and organoleptic properties (color and odor) after adding different preservatives. The mixture of phenoxyethanol/isotialzoni-3-one (PNE system) resulted in enhanced stability of approximately 120 and 210 days under constant handling and shelf-life tests, respectively. The developed polymeric system presented a similar controlled release in acidic, neutral, or basic pH, and the release curves suggested a pulsatile release mechanism due to a complexation of essential oil in the PCL matrix. Our results showed that the developed system has potential as an alternative stable product and as a controlling agent, due to the pronounced bioactivity of the encapsulated essential oil.
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Affiliation(s)
- Sidney Gomes Azevedo
- Laboratory of Nanostructured Polymers (NANOPOL), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
- Graduate Program in Chemistry (PPGQ), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
| | - Ana Luisa Farias Rocha
- Laboratory of Nanostructured Polymers (NANOPOL), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
- Graduate Program in Materials Science and Engineering (PPGCEM), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
| | - Ronald Zico de Aguiar Nunes
- Laboratory of Nanostructured Polymers (NANOPOL), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
| | - Camila da Costa Pinto
- Graduate Program in Physics (PPGFIS), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
| | - Ştefan Ţălu
- The Directorate of Research, Development and Innovation Management (DMCDI), Technical University of Cluj-Napoca, 15 Constantin Daicoviciu St., 400020 Cluj-Napoca, Cluj County, Romania
| | - Henrique Duarte da Fonseca Filho
- Graduate Program in Materials Science and Engineering (PPGCEM), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
- Graduate Program in Physics (PPGFIS), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
- Laboratory of Nanomaterials Synthesis and Nanoscopy (LSNN), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
| | - Jaqueline de Araújo Bezerra
- Analytical Center, Federal Institute of Education, Science and Technology of Amazonas (IFAM), Manaus 69020-120, AM, Brazil
| | - Alessandra Ramos Lima
- São Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Carlos 13563-120, SP, Brazil
| | | | - Pedro Henrique Campelo
- Department of Food Technology, Federal University of Viçosa (UFV), Viçosa 36570-900, MG, Brazil
| | - Vanderlei Salvador Bagnato
- São Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Carlos 13563-120, SP, Brazil
- Hagler Institute for Advanced Studies, Texas A&M University, College Station, TX 77843-3572, USA
| | - Natalia Mayumi Inada
- São Carlos Institute of Physics (IFSC), University of São Paulo (USP), São Carlos 13563-120, SP, Brazil
| | - Edgar Aparecido Sanches
- Laboratory of Nanostructured Polymers (NANOPOL), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
- Graduate Program in Chemistry (PPGQ), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
- Graduate Program in Materials Science and Engineering (PPGCEM), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
- Graduate Program in Physics (PPGFIS), Federal University of Amazonas (UFAM), Manaus 69067-005, AM, Brazil
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Cheng Y, Li J, Chen M, Zhang S, He R, Wang N. Environmentally friendly and antimicrobial bilayer structured fabrics with integrated interception and sterilization for personal protective mask. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121165] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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de França JOC, da Silva Valadares D, Paiva MF, Dias SCL, Dias JA. Polymers Based on PLA from Synthesis Using D,L-Lactic Acid (or Racemic Lactide) and Some Biomedical Applications: A Short Review. Polymers (Basel) 2022; 14:polym14122317. [PMID: 35745893 PMCID: PMC9229942 DOI: 10.3390/polym14122317] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 05/30/2022] [Accepted: 05/31/2022] [Indexed: 02/01/2023] Open
Abstract
Poly(lactic acid) (PLA) is an important polymer that is based on renewable biomass resources. Because of environmental issues, more renewable sources for polymers synthesis have been sought for industrial purposes. In this sense, cheaper monomers should be used to facilitate better utilization of less valuable chemicals and therefore granting more sustainable processes. Some points are raised about the need to study the total degradability of any PLA, which may require specific composting conditions (e.g., temperature, type of microorganism, adequate humidity and aerobic environment). Polymerization processes to produce PLA are presented with an emphasis on D,L-lactic acid (or rac-lactide) as the reactant monomer. The syntheses involving homogeneous and heterogeneous catalytic processes to produce poly(D,L-Lactic acid) (PDLLA) are also addressed. Additionally, the production of blends, copolymers, and composites with PDLLA are also presented exemplifying different preparation methods. Some general applications of these materials mostly dedicated to the biomedical area over the last 10–15 years will be pointed out.
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Affiliation(s)
| | | | | | | | - José Alves Dias
- Correspondence: (S.C.L.D.); (J.A.D.); Tel.: +55-61-3107-3846 (J.A.D.); Fax: 55-61-3107-3900 (J.A.D.)
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Bian Y, Niu Z, Wang S, Pan Y, Zhang L, Chen C. Removal of Size-Dependent Submicron Particles Using Metal-Organic Framework-Based Nanofiber Air Filters. ACS APPLIED MATERIALS & INTERFACES 2022; 14:23570-23576. [PMID: 35579237 DOI: 10.1021/acsami.2c04970] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Particulate matter poses a serious threat to human health. In particular, exposure to submicron particles can result in more severe health effects as they can deposit more deeply into human tissues. Metal-organic framework (MOF)-based nanofiber filters are regarded as promising candidates for efficient particle control. In this study, ZIF-8@PAN nanofiber filters that were developed via an in situ growth strategy were selected for the filtration of submicron particles. The addition of ZIF-8 more effectively enhanced the filtration of particles with smaller sizes. For the most penetrating particle size of around 0.3 μm, the MOF-based nanofiber filter exhibited an 8.9% increase in filtration efficiency compared with that of the pure nanofiber filter. Meanwhile, for particles with large aerodynamic diameters (in the range of 0.7-1 μm, for example), the role of ZIF-8 was negligible. This work provides important insights into the filtration performance of MOF-based nanofiber filters in capturing submicron particles and may aid in designing nanofiber filters for efficient control of particles.
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Affiliation(s)
- Ye Bian
- School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Zhuolun Niu
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, N.T. 999077, Hong Kong SAR, China
| | - Shijie Wang
- Shanghai Institute of Ceramics, Chinese Academy of Sciences, 200050 Shanghai, China
| | - Yue Pan
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, N.T. 999077, Hong Kong SAR, China
| | - Li Zhang
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, N.T. 999077, Hong Kong SAR, China
| | - Chun Chen
- Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Shatin, N.T. 999077, Hong Kong SAR, China
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Abstract
Air filtration has seen a sizable increase in the global market this past year due to the COVID-19 pandemic. Nanofiber nonwoven mats are able to reach certain efficiencies with a low-pressure drop, have a very high surface area to volume ratio, filter out submicron particulates, and can customize the fiber material to better suit its purpose. Although electrospinning nonwoven mats have been very well studied and documented there are not many papers that combine them. This review touches on the various ways to manufacture nonwoven mats for use as an air filter, with an emphasis on electrospinning, the mechanisms by which the fibrous nonwoven air filter stops particles passing through, and ways that the nonwoven mats can be altered by morphology, structure, and material parameters. Metallic, ceramic, and organic nanoparticle coatings, as well as electrospinning solutions with these same materials and their properties and effects of air filtration, are explored.
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Han P, Liu C, Staples R, Moran CS, Ramachandra SS, Gómez-Cerezo MN, Ivanovski S. Salivary SARS-CoV-2 antibody detection using S1-RBD protein-immobilized 3D melt electrowritten poly(ε-caprolactone) scaffolds. RSC Adv 2022; 12:24849-24856. [PMID: 36128389 PMCID: PMC9429024 DOI: 10.1039/d2ra03979f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 08/24/2022] [Indexed: 11/21/2022] Open
Abstract
Sensitive detection of immunoglobulin antibodies against SARS-CoV-2 during the COVID-19 pandemic is critical to monitor the adaptive immune response after BNT162b2 mRNA vaccination. Currently employed binding antibody detection tests using 2D microplate-based enzyme-linked immunosorbent assays (ELISA) are limited by the degree of sensitivity. In this study, a 3D antibody test was developed by immobilizing the receptor-binding domain on Spike subunit 1 (S1-RBD) of SARS-CoV-2 onto engineered melt electrowritten (MEW) poly(ε-caprolactone) (PCL) scaffolds (pore: 500 μm, fiber diameter: 17 μm) using carbodiimide crosslinker chemistry. Protein immobilization was confirmed using X-ray photoelectron spectroscopy (XPS) by the presence of peaks corresponding with nitrogen. Self-developed indirect ELISA was performed to assess the functionality of the 3D platform in comparison with a standard 2D tissue culture plate (TCP) system, using whole unstimulated saliva samples from 14 non-vaccinated and 20 vaccinated participants (1- and 3- weeks post-dose 1; 3 days, 1 week and 3 weeks post-dose 2) without prior SARS-CoV-2 infection. The three-dimensional S1-RBD PCL scaffolds, while demonstrating a kinetic trend comparable to 2D TCP, exhibited significantly higher sensitivity and detection levels for all three immunoglobulins assayed (IgG, IgM, and IgA). These novel findings highlight the potential of MEW PCL constructs in the development of improved low-cost, point-of-care, and self-assessing diagnostic platforms for the detection and monitoring of SARS-CoV-2 antibodies. Our work developed a 3D SARS-CoV-2 antibody detection platform in non-invasive saliva samples using S1-RBD protein-immobilized 3D melt electrowritten poly(ε-caprolactone) scaffolds.![]()
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Affiliation(s)
- Pingping Han
- The University of Queensland, School of Dentistry, Brisbane, QLD 4006, Australia
- The University of Queensland, School of Dentistry, Center for Oral-facial Regeneration, Rehabilitation and Reconstruction (COR3), Brisbane, QLD 4006, Australia
| | - Chun Liu
- The University of Queensland, School of Dentistry, Brisbane, QLD 4006, Australia
- The University of Queensland, School of Dentistry, Center for Oral-facial Regeneration, Rehabilitation and Reconstruction (COR3), Brisbane, QLD 4006, Australia
| | - Reuben Staples
- The University of Queensland, School of Dentistry, Brisbane, QLD 4006, Australia
- The University of Queensland, School of Dentistry, Center for Oral-facial Regeneration, Rehabilitation and Reconstruction (COR3), Brisbane, QLD 4006, Australia
| | - Corey S. Moran
- The University of Queensland, School of Dentistry, Brisbane, QLD 4006, Australia
- The University of Queensland, School of Dentistry, Center for Oral-facial Regeneration, Rehabilitation and Reconstruction (COR3), Brisbane, QLD 4006, Australia
| | - Srinivas Sulugodu Ramachandra
- The University of Queensland, School of Dentistry, Brisbane, QLD 4006, Australia
- The University of Queensland, School of Dentistry, Center for Oral-facial Regeneration, Rehabilitation and Reconstruction (COR3), Brisbane, QLD 4006, Australia
| | - Maria Natividad Gómez-Cerezo
- The University of Queensland, School of Dentistry, Brisbane, QLD 4006, Australia
- The University of Queensland, School of Dentistry, Center for Oral-facial Regeneration, Rehabilitation and Reconstruction (COR3), Brisbane, QLD 4006, Australia
| | - Sašo Ivanovski
- The University of Queensland, School of Dentistry, Brisbane, QLD 4006, Australia
- The University of Queensland, School of Dentistry, Center for Oral-facial Regeneration, Rehabilitation and Reconstruction (COR3), Brisbane, QLD 4006, Australia
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Stanislas TT, Bilba K, de Oliveira Santos RP, Onésippe-Potiron C, Savastano Junior H, Arsène MA. Nanocellulose-based membrane as a potential material for high performance biodegradable aerosol respirators for SARS-CoV-2 prevention: a review. CELLULOSE (LONDON, ENGLAND) 2022; 29:8001-8024. [PMID: 35990792 PMCID: PMC9383689 DOI: 10.1007/s10570-022-04792-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 08/02/2022] [Indexed: 05/14/2023]
Abstract
The controversy surrounding the transmission of COVID-19 in 2020 has revealed the need to better understand the airborne transmission route of respiratory viruses to establish appropriate strategies to limit their transmission. The effectiveness in protecting against COVID-19 has led to a high demand for face masks. This includes the single-use of non-degradable masks and Filtering Facepiece Respirators by a large proportion of the public, leading to environmental concerns related to waste management. Thus, nanocellulose-based membranes are a promising environmental solution for aerosol filtration due to their biodegradability, renewability, biocompatibility, high specific surface area, non-toxicity, ease of functionalization and worldwide availability. Although the technology for producing high-performance aerosol filter membranes from cellulose-based materials is still in its initial stage, several promising results show the prospects of the use of this kind of materials. This review focuses on the overview of nanocellulose-based filter media, including its processing, desirable characteristics and recent developments regarding filtration, functionalization, biodegradability, and mechanical behavior. The porosity control, surface wettability and surface functional groups resulting from the silylation treatment to improve the filtration capacity of the nanocellulose-based membrane is discussed. Future research trends in this area are planned to develop the air filter media by reinforcing the filter membrane structure of CNF with CNCs. In addition, the integration of sol-gel technology into the production of an air filter can tailor the pore size of the membrane for a viable physical screening solution in future studies.
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Affiliation(s)
- Tido Tiwa Stanislas
- Laboratoire COVACHIM-M2E EA3592, UFR SEN, Université des Antilles, Campus de Fouillole, BP 250, 97157 Pointe-à-Pitre, Guadeloupe France
- Research Nucleus on Materials for Biosystems, Faculty of Animal Science and Food Engineering, University of São Paulo, Duque de Caxias Norte, 225, Pirassununga, SP 13635-900 Brazil
- Mechanic and Adapted Materials Laboratory, ENSET, University of Douala, P.O. BOX 1872, Douala, Cameroon
| | - Ketty Bilba
- Laboratoire COVACHIM-M2E EA3592, UFR SEN, Université des Antilles, Campus de Fouillole, BP 250, 97157 Pointe-à-Pitre, Guadeloupe France
| | - Rachel Passos de Oliveira Santos
- Research Nucleus on Materials for Biosystems, Faculty of Animal Science and Food Engineering, University of São Paulo, Duque de Caxias Norte, 225, Pirassununga, SP 13635-900 Brazil
| | - Cristel Onésippe-Potiron
- Laboratoire COVACHIM-M2E EA3592, UFR SEN, Université des Antilles, Campus de Fouillole, BP 250, 97157 Pointe-à-Pitre, Guadeloupe France
| | - Holmer Savastano Junior
- Research Nucleus on Materials for Biosystems, Faculty of Animal Science and Food Engineering, University of São Paulo, Duque de Caxias Norte, 225, Pirassununga, SP 13635-900 Brazil
| | - Marie-Ange Arsène
- Laboratoire COVACHIM-M2E EA3592, UFR SEN, Université des Antilles, Campus de Fouillole, BP 250, 97157 Pointe-à-Pitre, Guadeloupe France
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Xiong J, Shao W, Wang L, Cui C, Gao Y, Jin Y, Yu H, Han P, Liu F, He J. High-performance anti-haze window screen based on multiscale structured polyvinylidene fluoride nanofibers. J Colloid Interface Sci 2021; 607:711-719. [PMID: 34530191 DOI: 10.1016/j.jcis.2021.09.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/05/2021] [Accepted: 09/06/2021] [Indexed: 11/29/2022]
Abstract
Indoor air quality (IAQ) has assumed new significance given the extensive amount of time spent indoor due to the coronavirus pandemic and particulate matter (PM) pollution. Accordingly, the development of window air filters to effectively intercept PM from outdoor air under natural ventilation conditions is an important research topic. However, most existing filters inevitably suffer from the compromise among filtration capability, transparency, and air permeability. In this study, we fabricate a high-performance transparent air filter to improve IAQ via natural ventilation. polyvinylidene fluoride (PVDF) superfine nanofibers of size 20-35 nm are prepared using extremely dilute solution electrospinning; a multi-scale nanofiber structure is then designed. By adjusting the ratio of PVDF superfine nanofibers (SNs) to PVDF coarse fibers (CNs), we balance the structure-performance relationship. Benefiting from the multiscale structural features that include a small pore size (0.72 μm) and high porosity (92.22%), the resulting filters exhibit excellent performance including high interception efficiency (99.92%) for PM0.3, low air resistance (69 Pa), high transparency (∼80%) and stable filtration after 100 h of UV irradiation. This work describes a new strategy for the fabrication of nanofibers with true-nanoscale diameters and the design of high-performance air filters.
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Affiliation(s)
- Junpeng Xiong
- Textile and Garment Industry of Research Institute, Zhongyuan University of Technology, Zhengzhou 450007, People's Republic of China; International Joint Laboratory of New Textile Materials and Textiles of Henan Province, Zhengzhou 450007, People's Republic of China
| | - Weili Shao
- Textile and Garment Industry of Research Institute, Zhongyuan University of Technology, Zhengzhou 450007, People's Republic of China; International Joint Laboratory of New Textile Materials and Textiles of Henan Province, Zhengzhou 450007, People's Republic of China.
| | - Ling Wang
- Textile and Garment Industry of Research Institute, Zhongyuan University of Technology, Zhengzhou 450007, People's Republic of China; International Joint Laboratory of New Textile Materials and Textiles of Henan Province, Zhengzhou 450007, People's Republic of China
| | - Chen Cui
- Textile and Garment Industry of Research Institute, Zhongyuan University of Technology, Zhengzhou 450007, People's Republic of China; International Joint Laboratory of New Textile Materials and Textiles of Henan Province, Zhengzhou 450007, People's Republic of China
| | - Yanfei Gao
- Textile and Garment Industry of Research Institute, Zhongyuan University of Technology, Zhengzhou 450007, People's Republic of China; International Joint Laboratory of New Textile Materials and Textiles of Henan Province, Zhengzhou 450007, People's Republic of China
| | - Yurui Jin
- School of Materials Science and Engineering, Henan University of Technology, Zhengzhou 450052, People's Republic of China
| | - Hongqin Yu
- Textile and Garment Industry of Research Institute, Zhongyuan University of Technology, Zhengzhou 450007, People's Republic of China; International Joint Laboratory of New Textile Materials and Textiles of Henan Province, Zhengzhou 450007, People's Republic of China
| | - Pengju Han
- Textile and Garment Industry of Research Institute, Zhongyuan University of Technology, Zhengzhou 450007, People's Republic of China; International Joint Laboratory of New Textile Materials and Textiles of Henan Province, Zhengzhou 450007, People's Republic of China
| | - Fan Liu
- Textile and Garment Industry of Research Institute, Zhongyuan University of Technology, Zhengzhou 450007, People's Republic of China; International Joint Laboratory of New Textile Materials and Textiles of Henan Province, Zhengzhou 450007, People's Republic of China
| | - Jianxin He
- Textile and Garment Industry of Research Institute, Zhongyuan University of Technology, Zhengzhou 450007, People's Republic of China; International Joint Laboratory of New Textile Materials and Textiles of Henan Province, Zhengzhou 450007, People's Republic of China.
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