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Bulgarin H, Thomberg T, Lust A, Nerut J, Koppel M, Romann T, Palm R, Månsson M, Vana M, Junninen H, Külaviir M, Paiste P, Kirsimäe K, Punapart M, Viru L, Merits A, Lust E. Enhanced and copper concentration dependent virucidal effect against SARS-CoV-2 of electrospun poly(vinylidene difluoride) filter materials. iScience 2024; 27:109835. [PMID: 38799576 PMCID: PMC11126773 DOI: 10.1016/j.isci.2024.109835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 04/11/2024] [Accepted: 04/25/2024] [Indexed: 05/29/2024] Open
Abstract
Virucidal filter materials were prepared by electrospinning a solution of 28 wt % poly(vinylidene difluoride) in N,N-dimethylacetamide without and with the addition of 0.25 wt %, 0.75 wt %, 2.0 wt %, or 3.5 wt % Cu(NO3)2 · 2.5H2O as virucidal agent. The fabricated materials had a uniform and defect free fibrous structure and even distribution of copper nanoclusters. X-ray diffraction analysis showed that during the electrospinning process, Cu(NO3)2 · 2.5H2O changed into Cu2(NO3)(OH)3. Electrospun filter materials obtained by electrospinning were essentially macroporous. Smaller pores of copper nanoclusters containing materials resulted in higher particle filtration than those without copper nanoclusters. Electrospun filter material fabricated with the addition of 2.0 wt % and 3.5 wt % of Cu(NO3)2 · 2.5H2O in a spinning solution showed significant virucidal activity, and there was 2.5 ± 0.35 and 3.2 ± 0.30 logarithmic reduction in the concentration of infectious SARS-CoV-2 within 12 h, respectively. The electrospun filter materials were stable as they retained virucidal activity for three months.
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Affiliation(s)
- Hanna Bulgarin
- Institute of Chemistry, University of Tartu, Ravila 14a, 50411 Tartu, Estonia
| | - Thomas Thomberg
- Institute of Chemistry, University of Tartu, Ravila 14a, 50411 Tartu, Estonia
| | - Andres Lust
- Institute of Pharmacy, University of Tartu, Nooruse 1, 50411 Tartu, Estonia
| | - Jaak Nerut
- Institute of Chemistry, University of Tartu, Ravila 14a, 50411 Tartu, Estonia
| | - Miriam Koppel
- Institute of Chemistry, University of Tartu, Ravila 14a, 50411 Tartu, Estonia
| | - Tavo Romann
- Institute of Chemistry, University of Tartu, Ravila 14a, 50411 Tartu, Estonia
| | - Rasmus Palm
- Institute of Chemistry, University of Tartu, Ravila 14a, 50411 Tartu, Estonia
- Department of Applied Physics, KTH Royal Institute of Technology, 10691 Stockholm, Sweden
| | - Martin Månsson
- Department of Applied Physics, KTH Royal Institute of Technology, 10691 Stockholm, Sweden
| | - Marko Vana
- Institute of Physics, University of Tartu, W. Ostwald 1, 50411 Tartu, Estonia
| | - Heikki Junninen
- Institute of Physics, University of Tartu, W. Ostwald 1, 50411 Tartu, Estonia
| | - Marian Külaviir
- Institute of Ecology and Earth Sciences, University of Tartu, Ravila 14a, 50411 Tartu, Estonia
| | - Päärn Paiste
- Institute of Ecology and Earth Sciences, University of Tartu, Ravila 14a, 50411 Tartu, Estonia
| | - Kalle Kirsimäe
- Institute of Ecology and Earth Sciences, University of Tartu, Ravila 14a, 50411 Tartu, Estonia
| | - Marite Punapart
- Institute of Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia
| | - Liane Viru
- Institute of Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia
| | - Andres Merits
- Institute of Technology, University of Tartu, Nooruse 1, 50411 Tartu, Estonia
| | - Enn Lust
- Institute of Chemistry, University of Tartu, Ravila 14a, 50411 Tartu, Estonia
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2
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Greenhalgh T, MacIntyre CR, Baker MG, Bhattacharjee S, Chughtai AA, Fisman D, Kunasekaran M, Kvalsvig A, Lupton D, Oliver M, Tawfiq E, Ungrin M, Vipond J. Masks and respirators for prevention of respiratory infections: a state of the science review. Clin Microbiol Rev 2024; 37:e0012423. [PMID: 38775460 DOI: 10.1128/cmr.00124-23] [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] [Indexed: 06/14/2024] Open
Abstract
SUMMARYThis narrative review and meta-analysis summarizes a broad evidence base on the benefits-and also the practicalities, disbenefits, harms and personal, sociocultural and environmental impacts-of masks and masking. Our synthesis of evidence from over 100 published reviews and selected primary studies, including re-analyzing contested meta-analyses of key clinical trials, produced seven key findings. First, there is strong and consistent evidence for airborne transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and other respiratory pathogens. Second, masks are, if correctly and consistently worn, effective in reducing transmission of respiratory diseases and show a dose-response effect. Third, respirators are significantly more effective than medical or cloth masks. Fourth, mask mandates are, overall, effective in reducing community transmission of respiratory pathogens. Fifth, masks are important sociocultural symbols; non-adherence to masking is sometimes linked to political and ideological beliefs and to widely circulated mis- or disinformation. Sixth, while there is much evidence that masks are not generally harmful to the general population, masking may be relatively contraindicated in individuals with certain medical conditions, who may require exemption. Furthermore, certain groups (notably D/deaf people) are disadvantaged when others are masked. Finally, there are risks to the environment from single-use masks and respirators. We propose an agenda for future research, including improved characterization of the situations in which masking should be recommended or mandated; attention to comfort and acceptability; generalized and disability-focused communication support in settings where masks are worn; and development and testing of novel materials and designs for improved filtration, breathability, and environmental impact.
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Affiliation(s)
- Trisha Greenhalgh
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - C Raina MacIntyre
- Biosecurity Program, The Kirby Institute, University of New South Wales, Sydney, Australia
| | - Michael G Baker
- Department of Public Health, University of Otago, Wellington, New Zealand
| | - Shovon Bhattacharjee
- Biosecurity Program, The Kirby Institute, University of New South Wales, Sydney, Australia
- School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, Australia
| | - Abrar A Chughtai
- School of Population Health, University of New South Wales, Sydney, Australia
| | - David Fisman
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Mohana Kunasekaran
- Biosecurity Program, The Kirby Institute, University of New South Wales, Sydney, Australia
| | - Amanda Kvalsvig
- Department of Public Health, University of Otago, Wellington, New Zealand
| | - Deborah Lupton
- Centre for Social Research in Health and Social Policy Research Centre, Faculty of Arts, Design and Architecture, University of New South Wales, Sydney, Australia
| | - Matt Oliver
- Professional Standards Advocate, Edmonton, Canada
| | - Essa Tawfiq
- Biosecurity Program, The Kirby Institute, University of New South Wales, Sydney, Australia
| | - Mark Ungrin
- Faculty of Veterinary Medicine; Department of Biomedical Engineering, Schulich School of Engineering; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - Joe Vipond
- Department of Emergency Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
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3
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Liu M, Pan ZZ, Ohwada M, Tang R, Matsui H, Tada M, Ito M, Ikura A, Nishihara H. Highly Permeable and Regenerative Microhoneycomb Filters. ACS APPLIED MATERIALS & INTERFACES 2024; 16:29177-29187. [PMID: 38781454 DOI: 10.1021/acsami.4c02697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Allergic reactions can profoundly influence the quality of life. To address the health risks posed by allergens and overcome the permeability limitations of the current filter materials, this work introduces a novel microhoneycomb (MH) material for practical filter applications such as masks. Through a synthesis process integrating ice-templating and a gas-phase post-treatment with silane, MH achieves unprecedented levels of moisture resistance and mechanical stability while preserving the highly permeable microchannels. Notably, MH is extremely elastic, with a 92% recovery rate after being compressed to 80% deformation. The filtration efficiency surpasses 98.1% against pollutant particles that simulate airborne pollens, outperforming commercial counterparts with fifth-fold greater air permeability while ensuring unparalleled user comfort. Moreover, MH offers a sustainable solution, being easily regenerated through back-flow blowing, distinguishing it from conventional nonwoven fabrics. Finally, a prototype mask incorporating MH is presented, demonstrating its immense potential as a high-performance filtration material, effectively addressing health risks posed by allergens and other harmful particles.
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Affiliation(s)
- Minghao Liu
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Zheng-Ze Pan
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Mao Ohwada
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Rui Tang
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Hirosuke Matsui
- Department of Chemistry, Graduate School of Science/Research Center for Materials Science/Institute for Advance Science, Nagoya University, Furo, Chikusa, Nagoya, Aichi 464-8602, Japan
- RIKEN SPring-8 Center, RIKEN, Koto, Sayo, Hyogo 679-5148, Japan
| | - Mizuki Tada
- Department of Chemistry, Graduate School of Science/Research Center for Materials Science/Institute for Advance Science, Nagoya University, Furo, Chikusa, Nagoya, Aichi 464-8602, Japan
- RIKEN SPring-8 Center, RIKEN, Koto, Sayo, Hyogo 679-5148, Japan
| | - Masashi Ito
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
- Advanced Materials and Processing Laboratory, Research Division, Nissan Motor Co., Ltd., 1 Natsushima-cho, Yokosuka, Kanagawa 237-8523, Japan
| | - Ami Ikura
- Advanced Materials and Processing Laboratory, Research Division, Nissan Motor Co., Ltd., 1 Natsushima-cho, Yokosuka, Kanagawa 237-8523, Japan
| | - Hirotomo Nishihara
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
- Advanced Institute for Materials Research (WPI-AIMR), Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
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4
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Li S, Xiao P, Chen T. Superhydrophobic Solar-to-Thermal Materials Toward Cutting-Edge Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2311453. [PMID: 38719350 DOI: 10.1002/adma.202311453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 04/30/2024] [Indexed: 05/16/2024]
Abstract
Solar-to-thermal conversion is a direct and effective way to absorb sunlight for heat via the rational design and control of photothermal materials. However, when exposed to water-existed conditions, the conventional solar-to-thermal performance may experience severe degradation owing to the high specific heat capacity of water. To tackle with the challenge, the water-repellent function is introduced to construct superhydrophobic solar-to-thermal materials (SSTMs) for achieving stable heating, and even, for creating new application possibilities under water droplets, sweat, seawater, and ice environments. An in-depth review of cutting-edge research of SSTMs is given, focusing on synergetic functions, typical construction methods, and cutting-edge potentials based on water medium. Moreover, the current challenges and future prospects based on SSTMs are also carefully discussed.
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Affiliation(s)
- Shan Li
- Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, China
| | - Peng Xiao
- Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, China
| | - Tao Chen
- Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, China
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5
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Zhou Z, Wang D, Pan Z, You T, Xu G, Liang Y, Tang M. Bioinspired Structures Made of Silicone Nanofilaments for Upcycling Waste Masks to Reusable N95 Respirators. NANO LETTERS 2024; 24:4415-4422. [PMID: 38577835 DOI: 10.1021/acs.nanolett.4c00079] [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: 04/06/2024]
Abstract
The increasing demand for personal protective equipment such as single-use masks has led to large amounts of nondegradable plastic waste, aggravating economic and environmental burdens. This study reports a simple and scalable approach for upcycling waste masks via a chemical vapor deposition technique, realizing a trichome-like biomimetic (TLB) N95 respirator with superhydrophobicity (water contact angle ≥150°), N95-level protection, and reusability. The TLB N95 respirator comprising templated silicone nanofilaments with an average diameter of ∼150 nm offers N95-level protection and breathability comparable to those of commercial N95 respirators. The TLB N95 respirator can still maintain its N95-level protection against particulate matter and viruses after 10 disinfection treatment cycles (i.e., ultraviolet irradiation, microwave irradiation, dry heating, and autoclaving), demonstrating durable reusability. The proposed strategy provides new insight into upcycle waste masks, breaking the existing design and preparation concept of reusable masks.
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Affiliation(s)
- Zhiqiang Zhou
- School of Light Industry and Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Di Wang
- School of Light Industry and Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Zhengyuan Pan
- Department of Mechanical Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Tianle You
- School of Light Industry and Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Guilong Xu
- School of Light Industry and Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Yun Liang
- School of Light Industry and Engineering, South China University of Technology, Guangzhou, 510641, China
| | - Min Tang
- School of Light Industry and Engineering, South China University of Technology, Guangzhou, 510641, China
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6
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Mousavi SM, Pouramini Z, Babapoor A, Binazadeh M, Rahmanian V, Gholami A, Omidfar N, Althomali RH, Chiang WH, Rahman MM. Photocatalysis air purification systems for coronavirus removal: Current technologies and future trends. CHEMOSPHERE 2024; 353:141525. [PMID: 38395369 DOI: 10.1016/j.chemosphere.2024.141525] [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: 12/03/2023] [Revised: 02/20/2024] [Accepted: 02/21/2024] [Indexed: 02/25/2024]
Abstract
Air pollution causes extreme toxicological repercussions for human health and ecology. The management of airborne bacteria and viruses has become an essential goal of air quality control. Existing pathogens in the air, including bacteria, archaea, viruses, and fungi, can have severe effects on human health. The photocatalysis process is one of the favorable approaches for eliminating them. The oxidative nature of semiconductor-based photocatalysts can be used to fight viral activation as a green, sustainable, and promising approach with significant promise for environmental clean-up. The photocatalysts show wonderful performance under moderate conditions while generating negligible by-products. Airborne viruses can be inactivated by various photocatalytic processes, such as chemical oxidation, toxicity due to the metal ions released from photocatalysts composed of metals, and morphological damage to viruses. This review paper provides a thorough and evaluative analysis of current information on using photocatalytic oxidation to deactivate viruses.
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Affiliation(s)
- Seyyed Mojtaba Mousavi
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taiwan
| | - Zahra Pouramini
- Department of Civil and Environmental Engineering, Tarbiat Modares University, Tehran, Iran
| | - Aziz Babapoor
- Department of Chemical Engineering, University of Mohaghegh Ardabil, Ardabil, Iran
| | - Mojtaba Binazadeh
- Department of Chemical Engineering, School of Chemical and Petroleum Engineering, Shiraz University, Mollasadra Street, 71345, Shiraz, Fars, Iran
| | - Vahid Rahmanian
- Department of Mechanical Engineering, Université du Québec à Trois-Rivières, Drummondville, QC, Canada.
| | - Ahmad Gholami
- Biotechnology Research Center, Shiraz University of Medical Science, Shiraz, 71439-14693, Iran
| | - Navid Omidfar
- Department of Pathology, Shiraz University of Medical Science, Shiraz, 71439-14693, Iran
| | - Raed H Althomali
- Department of Chemistry, College of Art and Science, Prince Sattam Bin Abdulaziz University, Wadi Al-Dawasir, 11991, Saudi Arabia
| | - Wei-Hung Chiang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taiwan.
| | - Mohammed M Rahman
- Center of Excellence for Advanced Materials Research (CEAMR) & Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah, 21589, P.O.Box 80203, Saudi Arabia.
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7
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Qin ZH, Siddiqui MA, Xin X, Mou JH, Varjani S, Chen G, Lin CSK. Identification of microplastics in raw and treated municipal solid waste landfill leachates in Hong Kong, China. CHEMOSPHERE 2024; 351:141208. [PMID: 38219986 DOI: 10.1016/j.chemosphere.2024.141208] [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: 11/04/2023] [Revised: 01/11/2024] [Accepted: 01/12/2024] [Indexed: 01/16/2024]
Abstract
Plastics are indispensable in modern society but also pose a persistent threat to the environment. In particular, microplastics (MPs) have a substantial environmental impact on ecosystems. Municipal solid waste landfill leachates are a source of MPs, but leakage of MPs from leachates has only been reported in a few studies. As a modern city, Hong Kong has a remarkably high population density and a massive plastic waste generation. However, it depends on conventional landfilling for plastic waste management and traditional thermal ammonia stripping for leachate treatment. Yet, the MP leakage from landfill leachates in Hong Kong has not been disclosed. This is the first study that aimed to identify, quantify, and characterise MPs in raw and treated leachates, respectively, from major landfill sites in Hong Kong. The concentrations of MPs varied from 49.0 ± 24.3 to 507.6 ± 37.3 items/L among the raw leachate samples, and a potential correlation was found between the concentration of MPs in the raw leachate sample from a given landfill site and the annual leachate generation of the site. Most MPs were 100-500 μm fragments or filaments and were transparent or yellow. Regarding the polymeric materials among the identified MPs, poly(ethylene terephthalate) and polyethylene were the most abundant types, comprising 45.30% and 21.37% of MPs, respectively. Interestingly, leachates treated by ammonia stripping contained higher concentrations of MPs than raw leachate samples, which demonstrated that the traditional treatment process may not be sufficient regarding the removal of emerging pollutants, such as MPs. Overall, our findings provide a more comprehensive picture of the pollution of MPs in landfill leachates in Hong Kong and highlight the urgent need for adopting the consideration of MPs into the conventional mindset of waste management systems in Hong Kong.
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Affiliation(s)
- Zi-Hao Qin
- School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
| | - Muhammad Ahmar Siddiqui
- School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China; Department of Civil and Environmental Engineering, Water Technology Center, Hong Kong Branch of Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Xiayin Xin
- Beaty Water Research Centre, Department of Civil Engineering, Union Street, Queen's University, Kingston, K7L 3Z6, Canada
| | - Jin-Hua Mou
- School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
| | - Sunita Varjani
- School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China
| | - Guanghao Chen
- Department of Civil and Environmental Engineering, Water Technology Center, Hong Kong Branch of Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, The Hong Kong University of Science and Technology, Hong Kong SAR, China
| | - Carol Sze Ki Lin
- School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China.
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8
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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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9
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Ferrari IV, Giuntoli G, Pisani A, Cavallo A, Mazzetti P, Fonnesu R, Rosellini A, Pistello M, Al Kayal T, Cataldo A, Montanari R, Varone A, Castellino M, Antonaroli S, Soldani G, Losi P. One-step silver coating of polypropylene surgical mask with antibacterial and antiviral properties. Heliyon 2024; 10:e23196. [PMID: 38163242 PMCID: PMC10754878 DOI: 10.1016/j.heliyon.2023.e23196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 11/24/2023] [Accepted: 11/29/2023] [Indexed: 01/03/2024] Open
Abstract
Face masks can filter droplets containing viruses and bacteria minimizing the transmission and spread of respiratory pathogens but are also an indirect source of microbes transmission. A novel antibacterial and antiviral Ag-coated polypropylene surgical mask obtained through the in situ and one-step deposition of metallic silver nanoparticles, synthesized by silver mirror reaction combined with sonication or agitation methods, is proposed in this study. SEM analysis shows Ag nanoparticles fused together in a continuous and dense layer for the coating obtained by sonication, whereas individual Ag nanoparticles around 150 nm were obtained combining the silver mirror reaction with agitation. EDX, XRD and XPS confirm the presence of metallic Ag in both coatings and also oxidized Ag in samples by agitation. A higher amount of Ag nanoparticles is deposited on samples by sonication, as calculated by TGA. Further, both coatings are biocompatible and show antibacterial properties: coating by sonication caused 24 % and 40 % of bacterial reduction while coating by agitation 48 % and 96 % against S. aureus and E. coli, respectively. At 1 min of contact with SARS-CoV-2, the coating by agitation has an antiviral capacity of 75 % against 24 % of the one by sonication. At 1 h, both coatings achieve 100 % of viral inhibition. Nonetheless, larger samples could be produced only through the silver mirror reaction combined with agitation, preserving the integrity of the mask. In conclusion, the silver-coated mask produced by silver mirror reaction combined with agitation is scalable, has excellent physico-chemical characteristics as well as significant biological properties, with higher antimicrobial activities, providing additional protection and preventing the indirect transmission of pathogens.
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Affiliation(s)
- Ivan Vito Ferrari
- Institute of Clinical Physiology, National Research Council, Massa, 54100, Italy
| | - Giulia Giuntoli
- Institute of Clinical Physiology, National Research Council, Massa, 54100, Italy
| | - Anissa Pisani
- Institute of Clinical Physiology, National Research Council, Massa, 54100, Italy
| | - Aida Cavallo
- Institute of Clinical Physiology, National Research Council, Massa, 54100, Italy
| | - Paola Mazzetti
- Virology Unit, Pisa University Hospital, Pisa, Italy and Retrovirus Center, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, 56126, Italy
| | - Rossella Fonnesu
- Virology Unit, Pisa University Hospital, Pisa, Italy and Retrovirus Center, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, 56126, Italy
| | - Alfredo Rosellini
- Virology Unit, Pisa University Hospital, Pisa, Italy and Retrovirus Center, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, 56126, Italy
| | - Mauro Pistello
- Virology Unit, Pisa University Hospital, Pisa, Italy and Retrovirus Center, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, 56126, Italy
| | - Tamer Al Kayal
- Institute of Clinical Physiology, National Research Council, Massa, 54100, Italy
| | | | - Roberto Montanari
- Department of Industrial Engineering, University of Rome Tor Vergata, Rome, 00133, Italy
| | - Alessandra Varone
- Department of Industrial Engineering, University of Rome Tor Vergata, Rome, 00133, Italy
| | - Micaela Castellino
- Department of Applied Science and Technology, Politecnico di Torino, 10129, Turin, Italy
| | - Simonetta Antonaroli
- Department of Chemical Sciences and Technology, University of Rome Tor Vergata, Rome, 00133, Italy
| | - Giorgio Soldani
- Institute of Clinical Physiology, National Research Council, Massa, 54100, Italy
| | - Paola Losi
- Institute of Clinical Physiology, National Research Council, Massa, 54100, Italy
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10
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Li W, Ding T, Chang H, Peng Y, Li J, Liang X, Ma H, Li F, Ren M, Wang W. Plant-derived strategies to fight against severe acute respiratory syndrome coronavirus 2. Eur J Med Chem 2024; 264:116000. [PMID: 38056300 DOI: 10.1016/j.ejmech.2023.116000] [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: 09/20/2023] [Revised: 11/23/2023] [Accepted: 11/23/2023] [Indexed: 12/08/2023]
Abstract
The coronavirus disease 2019 (COVID-19) pandemic has caused an unprecedented crisis, which has been exacerbated because specific drugs and treatments have not yet been developed. In the post-pandemic era, humans and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) will remain in equilibrium for a long time. Therefore, we still need to be vigilant against mutated SARS-CoV-2 variants and other emerging human viruses. Plant-derived products are increasingly important in the fight against the pandemic, but a comprehensive review is lacking. This review describes plant-based strategies centered on key biological processes, such as SARS-CoV-2 transmission, entry, replication, and immune interference. We highlight the mechanisms and effects of these plant-derived products and their feasibility and limitations for the treatment and prevention of COVID-19. The development of emerging technologies is driving plants to become production platforms for various antiviral products, improving their medicinal potential. We believe that plant-based strategies will be an important part of the solutions for future pandemics.
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Affiliation(s)
- Wenkang Li
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, China; National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
| | - Tianze Ding
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, China; National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
| | - Huimin Chang
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, China; National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
| | - Yuanchang Peng
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, China; National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
| | - Jun Li
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, China; National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
| | - Xin Liang
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, China; National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya, 572000, China
| | - Huixin Ma
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, China; National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China
| | - Fuguang Li
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, China; National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya, 572000, China
| | - Maozhi Ren
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, China; National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu, 610000, China
| | - Wenjing Wang
- Zhengzhou Research Base, National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, China; National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang 455000, China; National Nanfan Research Institute (Sanya), Chinese Academy of Agricultural Sciences, Sanya, 572000, China; Hainan Yazhou Bay Seed Laboratory, Sanya, 572000, China.
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11
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Hossain MT, Shahid MA, Mahmud N, Habib A, Rana MM, Khan SA, Hossain MD. Research and application of polypropylene: a review. DISCOVER NANO 2024; 19:2. [PMID: 38168725 PMCID: PMC10761633 DOI: 10.1186/s11671-023-03952-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 12/26/2023] [Indexed: 01/05/2024]
Abstract
Polypropylene (PP) is a versatile polymer with numerous applications that has undergone substantial changes in recent years, focusing on the demand for next-generation polymers. This article provides a comprehensive review of recent research in PP and its advanced functional applications. The chronological development and fundamentals of PP are mentioned. Notably, the incorporation of nanomaterial like graphene, MXene, nano-clay, borophane, silver nanoparticles, etc., with PP for advanced applications has been tabulated with their key features and challenges. The article also conducts a detailed analysis of advancements and research gaps within three key forms of PP: fiber, membrane, and matrix. The versatile applications of PP across sectors like biomedical, automotive, aerospace, and air/water filtration are highlighted. However, challenges such as limited UV resistance, bonding issues, and flammability are noted. The study emphasizes the promising potential of PP while addressing unresolved concerns, with the goal of guiding future research and promoting innovation in polymer applications.
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Affiliation(s)
- Md Tanvir Hossain
- Department of Textile Engineering, Bangladesh University of Business and Technology (BUBT), Dhaka, 1216, Bangladesh
- Department of Textile Engineering, Dhaka University of Engineering and Technology, Gazipur, 1707, Bangladesh
| | - Md Abdus Shahid
- Department of Textile Engineering, Dhaka University of Engineering and Technology, Gazipur, 1707, Bangladesh.
| | - Nadim Mahmud
- Department of Textile Engineering, Dhaka University of Engineering and Technology, Gazipur, 1707, Bangladesh
| | - Ahasan Habib
- Department of Textile Engineering, Dhaka University of Engineering and Technology, Gazipur, 1707, Bangladesh
| | - Md Masud Rana
- Department of Textile Engineering, Dhaka University of Engineering and Technology, Gazipur, 1707, Bangladesh
| | - Shadman Ahmed Khan
- Department of Textile Engineering, Bangladesh University of Business and Technology (BUBT), Dhaka, 1216, Bangladesh
| | - Md Delwar Hossain
- Department of Textile Engineering, Dhaka University of Engineering and Technology, Gazipur, 1707, Bangladesh
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12
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Wang G, Xiao D, Fang Y, Ning G, Ye J. Polarity-dominated chitosan biguanide hydrochloride-based nanofibrous membrane with antibacterial activity for long-lasting air filtration. Int J Biol Macromol 2024; 254:127729. [PMID: 38287566 DOI: 10.1016/j.ijbiomac.2023.127729] [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: 10/06/2023] [Revised: 10/23/2023] [Accepted: 10/26/2023] [Indexed: 01/31/2024]
Abstract
Facemasks play a significant role as personal protective equipment during the COVID-19 pandemic, but their longevity is limited by the easy dissipation of electrostatic charge and the accumulation of bacteria. In this study, nanofibrous membranes composed of polyacrylonitrile and chitosan biguanide hydrochloride (PAN@CGH) with remarkable antibacterial characteristics were prepared through the coaxial electrospinning process. Particulate matter could be efficiently captured by the fibrous membrane, up to 98 % or more, via polarity-dominated forces derived from cyano and amino groups. As compared commercial N95 masks, the PAN@CGH was more resistant to a wider variety of disinfection protocols. Additionally, the nanofibrous membrane could kill >99.99 % of both Escherichia coli and Staphylococcus aureus. Based on these characteristics, PAN@CGH nanofibrous membrane was applied to facial mask, which possessed an excellent and long-lasting effect on the capture of airborne particles. This work may be one of the most promising strategies on designing high-performance face masks for public health protection.
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Affiliation(s)
- Guangyao Wang
- State Key Laboratory of Fine Chemicals and School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116012, PR China
| | - Dingwen Xiao
- State Key Laboratory of Fine Chemicals and School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116012, PR China
| | - Yueguang Fang
- State Key Laboratory of Fine Chemicals and School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116012, PR China
| | - Guiling Ning
- State Key Laboratory of Fine Chemicals and School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116012, PR China; Engineering Laboratory of Boric and Magnesic Functional Material Preparative and Applied Technology, 2 Linggong Road, Dalian, Liaoning 116024, PR China
| | - Junwei Ye
- State Key Laboratory of Fine Chemicals and School of Chemical Engineering, Dalian University of Technology, 2 Linggong Road, Dalian 116012, PR China; Engineering Laboratory of Boric and Magnesic Functional Material Preparative and Applied Technology, 2 Linggong Road, Dalian, Liaoning 116024, PR China.
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13
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Li T, Fujimoto M, Hayashi K, Anzai A, Nishiura H. Habitual Mask Wearing as Part of COVID-19 Control in Japan: An Assessment Using the Self-Report Habit Index. Behav Sci (Basel) 2023; 13:951. [PMID: 37998697 PMCID: PMC10669277 DOI: 10.3390/bs13110951] [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: 10/11/2023] [Revised: 11/10/2023] [Accepted: 11/16/2023] [Indexed: 11/25/2023] Open
Abstract
Although the Japanese government removed mask-wearing requirements in 2023, relatively high rates of mask wearing have continued in Japan. We aimed to assess psychological reasons and the strength of habitual mask wearing in Japan. An Internet-based cross-sectional survey was conducted with non-random participant recruitment. We explored the frequency of mask usage, investigating psychological reasons for wearing masks. A regression analysis examined the association between psychological reasons and the frequency of mask wearing. The habitual use of masks was assessed in the participant's most frequently visited indoor space and public transport using the self-report habit index. The principal component analysis with varimax rotation revealed distinct habitual characteristics. Among the 2640 participants surveyed from 6 to 9 February 2023, only 4.9% reported not wearing masks at all. Conformity to social norms was the most important reason for masks. Participants exhibited a slightly higher degree of habituation towards mask wearing on public transport compared to indoor spaces. The mask-wearing rate was higher in females than in males, and no significant difference was identified by age group. Daily mask wearing in indoor spaces was characterized by two traits (automaticity and behavioral frequency). A high mask-wearing frequency has been maintained in Japan during the social reopening transition period. Mask wearing has become a part of daily habit, especially on public transport, largely driven by automatic and frequent practice.
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Affiliation(s)
| | | | | | | | - Hiroshi Nishiura
- Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan; (T.L.); (M.F.); (K.H.); (A.A.)
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14
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Pan X, Hounye AH, Zhao Y, Cao C, Wang J, Abidi MV, Hou M, Xiong L, Chai X. A Digital Mask-Voiceprint System for Postpandemic Surveillance and Tracing Based on the STRONG Strategy. J Med Internet Res 2023; 25:e44795. [PMID: 37856760 PMCID: PMC10660213 DOI: 10.2196/44795] [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: 12/04/2022] [Revised: 09/28/2023] [Accepted: 10/18/2023] [Indexed: 10/21/2023] Open
Abstract
Lockdowns and border closures due to COVID-19 imposed mental, social, and financial hardships in many societies. Living with the virus and resuming normal life are increasingly being advocated due to decreasing virus severity and widespread vaccine coverage. However, current trends indicate a continued absence of effective contingency plans to stop the next more virulent variant of the pandemic. The COVID-19-related mask waste crisis has also caused serious environmental problems and virus spreads. It is timely and important to consider how to precisely implement surveillance for the dynamic clearance of COVID-19 and how to efficiently manage discarded masks to minimize disease transmission and environmental hazards. In this viewpoint, we sought to address this issue by proposing an appropriate strategy for intelligent surveillance of infected cases and centralized management of mask waste. Such an intelligent strategy against COVID-19, consisting of wearable mask sample collectors (masklect) and voiceprints and based on the STRONG (Spatiotemporal Reporting Over Network and GPS) strategy, could enable the resumption of social activities and economic recovery and ensure a safe public health environment sustainably.
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Affiliation(s)
- Xiaogao Pan
- Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha, China
- Emergency Medicine and Difficult Diseases Institute, Central South University, Changsha, China
| | | | - Yuqi Zhao
- Department of Gastroenterology, Second Xiangya Hospital, Central South University, Changsha, China
| | - Cong Cao
- School of Mathematics and Statistics, Central South University, Changsha, China
| | - Jiaoju Wang
- School of Mathematics and Statistics, Central South University, Changsha, China
| | - Mimi Venunye Abidi
- General Surgery Department, Second Xiangya Hospital, Central South University, Changsha, China
| | - Muzhou Hou
- School of Mathematics and Statistics, Central South University, Changsha, China
| | - Li Xiong
- General Surgery Department, Second Xiangya Hospital, Central South University, Changsha, China
| | - Xiangping Chai
- Department of Emergency Medicine, Second Xiangya Hospital, Central South University, Changsha, China
- Emergency Medicine and Difficult Diseases Institute, Central South University, Changsha, China
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15
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Chen Z, Zhao Q, Chen J, Mei T, Wang W, Li M, Wang D. N-Halamine-Based Polypropylene Melt-Blown Nonwoven Fabric with Superhydrophilicity and Antibacterial Properties for Face Masks. Polymers (Basel) 2023; 15:4335. [PMID: 37960015 PMCID: PMC10648686 DOI: 10.3390/polym15214335] [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: 09/19/2023] [Revised: 10/24/2023] [Accepted: 10/29/2023] [Indexed: 11/15/2023] Open
Abstract
Polypropylene melt-blown nonwoven fabric (PP MNF) masks can effectively block pathogens in the environment from entering the human body. However, the adhesion of surviving pathogens to masks poses a risk of human infection. Thus, embedding safe and efficient antibacterial materials is the key to solving pathogen infection. In this study, stable chlorinated poly(methacrylamide-N,N'-methylenebisacrylamide) polypropylene melt-blown nonwoven fabrics (PP-P(MAA-MBAA)-Cl MNFs) have been fabricated by a simple UV cross-link and chlorination process, and the active chlorine content can reach 3500 ppm. The PP-P(MAA-MBAA)-Cl MNFs show excellent hydrophilic and antibacterial properties. The PP-P(MAA-MBAA)-Cl MNFs could kill all bacteria (both Escherichia coli and Staphylococcus aureus) with only 5 min of contact. Therefore, incorporating PP-P(MAA-MBAA)-Cl MNF as a hydrophilic antimicrobial layer into a four-layer PP-based mask holds great potential for enhancing protection and comfort.
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Affiliation(s)
- Zhuo Chen
- Key Laboratory of Textile Fiber and Products, Wuhan Textile University, Ministry of Education, Wuhan 430200, China; (Z.C.); (Q.Z.); (T.M.); (W.W.); (D.W.)
| | - Qinghua Zhao
- Key Laboratory of Textile Fiber and Products, Wuhan Textile University, Ministry of Education, Wuhan 430200, China; (Z.C.); (Q.Z.); (T.M.); (W.W.); (D.W.)
| | - Jiahui Chen
- Key Laboratory of Textile Fiber and Products, Wuhan Textile University, Ministry of Education, Wuhan 430200, China; (Z.C.); (Q.Z.); (T.M.); (W.W.); (D.W.)
- College of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, China
| | - Tao Mei
- Key Laboratory of Textile Fiber and Products, Wuhan Textile University, Ministry of Education, Wuhan 430200, China; (Z.C.); (Q.Z.); (T.M.); (W.W.); (D.W.)
| | - Wenwen Wang
- Key Laboratory of Textile Fiber and Products, Wuhan Textile University, Ministry of Education, Wuhan 430200, China; (Z.C.); (Q.Z.); (T.M.); (W.W.); (D.W.)
| | - Mufang Li
- Key Laboratory of Textile Fiber and Products, Wuhan Textile University, Ministry of Education, Wuhan 430200, China; (Z.C.); (Q.Z.); (T.M.); (W.W.); (D.W.)
| | - Dong Wang
- Key Laboratory of Textile Fiber and Products, Wuhan Textile University, Ministry of Education, Wuhan 430200, China; (Z.C.); (Q.Z.); (T.M.); (W.W.); (D.W.)
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16
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Shoji M, Ichihashi K, Sriwilaijaroen N, Mayumi H, Morikane S, Takahashi E, Kido H, Suzuki Y, Takeda K, Kuzuhara T. Anti-influenza Activity of Povidone-Iodine-Integrated Materials. Biol Pharm Bull 2023; 46:1231-1239. [PMID: 37357386 DOI: 10.1248/bpb.b23-00161] [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] [Indexed: 06/27/2023]
Abstract
Personal protective equipment (PPE), including medical masks, should be worn for preventing the transmission of respiratory pathogens via infective droplets and aerosols. In medical masks, the key layer is the filter layer, and the melt-blown nonwoven fabric (NWF) is the most used fabric. However, the NWF filter layer cannot kill or inactivate the pathogens spread via droplets and aerosols. Povidone-iodine (PVP-I) has been used as an antiseptic solution given its potent broad-spectrum activity against pathogens. To develop PPE (e.g., medical masks) with anti-pathogenic activity, we integrated PVP-I into nylon-66 NWF. We then evaluated its antiviral activity against influenza A viruses by examining the viability of Madin-Darby canine kidney (MDCK) cells after inoculation with the virus strains exposed to the PVP-I-integrated nylon-66 NWF. The PVP-I nylon-66 NWF protected the MDCK cells from viral infection in a PVP-I concentration-dependent manner. Subsequently, we found to integrate PVP-I into nylon-66 and polyurethane materials among various materials. These PVP-I materials were also effective against influenza virus infection, and treatment with PVP-I nylon-66 NWF showed the highest cell survival among all the tested materials. PVP-I showed anti-influenza A virus activity when used in conjunction with PPE materials. Moreover, nylon-66 NWF integrated with PVP-I was found to be the best material to ensure anti-influenza activity. Therefore, PVP-I-integrated masks could have the potential to inhibit respiratory virus infection. Our results provide new information for developing multi-functional PPEs with anti-viral activity by integrating them with PVP-I to prevent the potential transmission of respiratory viruses.
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Affiliation(s)
- Masaki Shoji
- Laboratory of Biochemistry, Faculty of Pharmaceutical Sciences, Tokushima Bunri University
| | - Kenta Ichihashi
- Laboratory of Biochemistry, Faculty of Pharmaceutical Sciences, Tokushima Bunri University
| | - Nongluk Sriwilaijaroen
- Department of Preclinical Sciences, Faculty of Medicine, Thammasat University (Rangsit Campus)
- Department of Biochemistry, University of Shizuoka School of Pharmaceutical Sciences
| | | | | | - Etsuhisa Takahashi
- Division of Enzyme Chemistry, Institute for Enzyme Research, Tokushima University
| | - Hiroshi Kido
- Division of Enzyme Chemistry, Institute for Enzyme Research, Tokushima University
| | - Yasuo Suzuki
- Department of Biochemistry, University of Shizuoka School of Pharmaceutical Sciences
| | | | - Takashi Kuzuhara
- Laboratory of Biochemistry, Faculty of Pharmaceutical Sciences, Tokushima Bunri University
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17
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Ferreira T, Vale AC, Pinto AC, Costa RV, Pais V, Sousa D, Gomes F, Pinto G, Dias JG, Moreira IP, Mota C, Bessa J, Antunes JC, Henriques M, Cunha F, Fangueiro R. Comparison of Zinc Oxide Nanoparticle Integration into Non-Woven Fabrics Using Different Functionalisation Methods for Prospective Application as Active Facemasks. Polymers (Basel) 2023; 15:3499. [PMID: 37688127 PMCID: PMC10489795 DOI: 10.3390/polym15173499] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/12/2023] [Accepted: 08/16/2023] [Indexed: 09/10/2023] Open
Abstract
The development of advanced facemasks stands out as a paramount priority in enhancing healthcare preparedness. In this work, different polypropylene non-woven fabrics (NWF) were characterised regarding their structural, physicochemical and comfort-related properties. The selected NWF for the intermediate layer was functionalised with zinc oxide nanoparticles (ZnO NPs) 0.3 and 1.2wt% using three different methods: electrospinning, dip-pad-dry and exhaustion. After the confirmation of ZnO NP content and distribution within the textile fibres by morphological and chemical analysis, the samples were evaluated regarding their antimicrobial properties. The functionalised fabrics obtained via dip-pad-dry unveiled the most promising data, with 0.017 ± 0.013wt% ZnO NPs being mostly located at the fibre's surface and capable of total eradication of Staphylococcus aureus and Escherichia coli colonies within the tested 24 h (ISO 22196 standard), as well as significantly contributing (**** p < 0.0001) to the growth inhibition of the bacteriophage MS2, a surrogate of the SARS-CoV-2 virus (ISO 18184 standard). A three-layered structure was assembled and thermoformed to obtain facemasks combining the previously chosen NWF, and its resulting antimicrobial capacity, filtration efficiency and breathability (NP EN ISO 149) were assessed. The developed three-layered and multiscaled fibrous structures with antimicrobial capacities hold immense potential as active individual protection facemasks.
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Affiliation(s)
- Tânia Ferreira
- Fibrenamics, Institute of Innovation on Fiber-Based Materials and Composites, University of Minho, 4800-058 Guimarães, Portugal; (T.F.); (A.C.V.); (R.V.C.); (V.P.); (I.P.M.); (C.M.); (J.B.); (F.C.); (R.F.)
- Centre for Textile Science and Technology (2C2T), University of Minho, 4800-058 Guimarães, Portugal;
| | - Ana Catarina Vale
- Fibrenamics, Institute of Innovation on Fiber-Based Materials and Composites, University of Minho, 4800-058 Guimarães, Portugal; (T.F.); (A.C.V.); (R.V.C.); (V.P.); (I.P.M.); (C.M.); (J.B.); (F.C.); (R.F.)
- Centre for Textile Science and Technology (2C2T), University of Minho, 4800-058 Guimarães, Portugal;
| | - Alexandra C. Pinto
- Centre for Textile Science and Technology (2C2T), University of Minho, 4800-058 Guimarães, Portugal;
- CEB, Centre of Biological Engineering, LIBRO—Laboratório de Investigação em Biofilmes Rosário Oliveira, University of Minho, 4710-057 Braga, Portugal; (D.S.); (F.G.); (G.P.); (M.H.)
| | - Rita V. Costa
- Fibrenamics, Institute of Innovation on Fiber-Based Materials and Composites, University of Minho, 4800-058 Guimarães, Portugal; (T.F.); (A.C.V.); (R.V.C.); (V.P.); (I.P.M.); (C.M.); (J.B.); (F.C.); (R.F.)
| | - Vânia Pais
- Fibrenamics, Institute of Innovation on Fiber-Based Materials and Composites, University of Minho, 4800-058 Guimarães, Portugal; (T.F.); (A.C.V.); (R.V.C.); (V.P.); (I.P.M.); (C.M.); (J.B.); (F.C.); (R.F.)
| | - Diana Sousa
- CEB, Centre of Biological Engineering, LIBRO—Laboratório de Investigação em Biofilmes Rosário Oliveira, University of Minho, 4710-057 Braga, Portugal; (D.S.); (F.G.); (G.P.); (M.H.)
| | - Fernanda Gomes
- CEB, Centre of Biological Engineering, LIBRO—Laboratório de Investigação em Biofilmes Rosário Oliveira, University of Minho, 4710-057 Braga, Portugal; (D.S.); (F.G.); (G.P.); (M.H.)
- LABBELS, Associate Laboratory, University of Minho, 4710-057 Braga, Portugal
| | - Graça Pinto
- CEB, Centre of Biological Engineering, LIBRO—Laboratório de Investigação em Biofilmes Rosário Oliveira, University of Minho, 4710-057 Braga, Portugal; (D.S.); (F.G.); (G.P.); (M.H.)
- LABBELS, Associate Laboratory, University of Minho, 4710-057 Braga, Portugal
| | - José Guilherme Dias
- Poleva—Termoconformados, S.A. Rua da Estrada 1939, 4610-744 Felgueiras, Portugal;
| | - Inês P. Moreira
- Fibrenamics, Institute of Innovation on Fiber-Based Materials and Composites, University of Minho, 4800-058 Guimarães, Portugal; (T.F.); (A.C.V.); (R.V.C.); (V.P.); (I.P.M.); (C.M.); (J.B.); (F.C.); (R.F.)
- Centre for Textile Science and Technology (2C2T), University of Minho, 4800-058 Guimarães, Portugal;
| | - Carlos Mota
- Fibrenamics, Institute of Innovation on Fiber-Based Materials and Composites, University of Minho, 4800-058 Guimarães, Portugal; (T.F.); (A.C.V.); (R.V.C.); (V.P.); (I.P.M.); (C.M.); (J.B.); (F.C.); (R.F.)
| | - João Bessa
- Fibrenamics, Institute of Innovation on Fiber-Based Materials and Composites, University of Minho, 4800-058 Guimarães, Portugal; (T.F.); (A.C.V.); (R.V.C.); (V.P.); (I.P.M.); (C.M.); (J.B.); (F.C.); (R.F.)
| | - Joana C. Antunes
- Fibrenamics, Institute of Innovation on Fiber-Based Materials and Composites, University of Minho, 4800-058 Guimarães, Portugal; (T.F.); (A.C.V.); (R.V.C.); (V.P.); (I.P.M.); (C.M.); (J.B.); (F.C.); (R.F.)
- Centre for Textile Science and Technology (2C2T), University of Minho, 4800-058 Guimarães, Portugal;
| | - Mariana Henriques
- CEB, Centre of Biological Engineering, LIBRO—Laboratório de Investigação em Biofilmes Rosário Oliveira, University of Minho, 4710-057 Braga, Portugal; (D.S.); (F.G.); (G.P.); (M.H.)
- LABBELS, Associate Laboratory, University of Minho, 4710-057 Braga, Portugal
| | - Fernando Cunha
- Fibrenamics, Institute of Innovation on Fiber-Based Materials and Composites, University of Minho, 4800-058 Guimarães, Portugal; (T.F.); (A.C.V.); (R.V.C.); (V.P.); (I.P.M.); (C.M.); (J.B.); (F.C.); (R.F.)
| | - Raul Fangueiro
- Fibrenamics, Institute of Innovation on Fiber-Based Materials and Composites, University of Minho, 4800-058 Guimarães, Portugal; (T.F.); (A.C.V.); (R.V.C.); (V.P.); (I.P.M.); (C.M.); (J.B.); (F.C.); (R.F.)
- Centre for Textile Science and Technology (2C2T), University of Minho, 4800-058 Guimarães, Portugal;
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18
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Collings K, Boisdon C, Sham TT, Skinley K, Oh HK, Prince T, Ahmed A, Pennington SH, Brownridge PJ, Edwards T, Biagini GA, Eyers CE, Lamb A, Myers P, Maher S. Attaching protein-adsorbing silica particles to the surface of cotton substrates for bioaerosol capture including SARS-CoV-2. Nat Commun 2023; 14:5033. [PMID: 37596260 PMCID: PMC10439164 DOI: 10.1038/s41467-023-40696-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 08/07/2023] [Indexed: 08/20/2023] Open
Abstract
The novel coronavirus pandemic (COVID-19) has necessitated a global increase in the use of face masks to limit the airborne spread of the virus. The global demand for personal protective equipment has at times led to shortages of face masks for the public, therefore makeshift masks have become commonplace. The severe acute respiratory syndrome caused by coronavirus-2 (SARS-CoV-2) has a spherical particle size of ~97 nm. However, the airborne transmission of this virus requires the expulsion of droplets, typically ~0.6-500 µm in diameter (by coughing, sneezing, breathing, and talking). In this paper, we propose a face covering that has been designed to effectively capture SARS-CoV-2 whilst providing uncompromised comfort and breathability for the wearer. Herein, we describe a material approach that uses amorphous silica microspheres attached to cotton fibres to capture bioaerosols, including SARS CoV-2. This has been demonstrated for the capture of aerosolised proteins (cytochrome c, myoglobin, ubiquitin, bovine serum albumin) and aerosolised inactivated SARS CoV-2, showing average filtration efficiencies of ~93% with minimal impact on breathability.
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Affiliation(s)
- Kieran Collings
- Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool, UK
| | - Cedric Boisdon
- Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool, UK
| | - Tung-Ting Sham
- Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool, UK
| | - Kevin Skinley
- Department of Chemistry, University of Liverpool, Liverpool, UK
| | - Hyun-Kyung Oh
- Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool, UK
| | - Tessa Prince
- Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK
| | - Adham Ahmed
- Department of Chemistry, University of Liverpool, Liverpool, UK
| | - Shaun H Pennington
- Centre for Drugs and Diagnostics, Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Philip J Brownridge
- Centre for Proteome Research, Department of Biochemistry & Systems Biology, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool, UK
| | - Thomas Edwards
- Centre for Drugs and Diagnostics, Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Giancarlo A Biagini
- Centre for Drugs and Diagnostics, Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Claire E Eyers
- Centre for Proteome Research, Department of Biochemistry & Systems Biology, Institute of Systems, Molecular & Integrative Biology, University of Liverpool, Liverpool, UK
| | - Amanda Lamb
- Faculty of Health and Life Sciences, University of Liverpool, Liverpool, UK
- Applied Health Insights Ltd, Cheshire, UK
| | - Peter Myers
- Department of Chemistry, University of Liverpool, Liverpool, UK.
| | - Simon Maher
- Department of Electrical Engineering and Electronics, University of Liverpool, Liverpool, UK.
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19
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Lu Y, Liu YX, Wang Y, Oestreich R, Xu ZY, Zhang W, Hügenell P, Janiak C, Yang XY. A facile spray-pressing synthesis approach for reusable photothermal masks. iScience 2023; 26:107286. [PMID: 37520721 PMCID: PMC10374458 DOI: 10.1016/j.isci.2023.107286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 06/26/2023] [Accepted: 06/30/2023] [Indexed: 08/01/2023] Open
Abstract
Certain types of face masks are highly efficient in protecting humans from bacterial and viral pathogens, and growing concerns with high safety, low cost, and wide market suitability have accelerated the replacement of reusable face masks with disposable ones during the last decades. However, wearing these masks creates countless problems associated with personnel comfort as well as more significant issues related to the cost of fabrication, the generation of medical waste, and environmental contaminants. In this work, we present a facile spray-pressing technique for the production of P-masks with a potential scale-up prospect by adding a graphene layer on one side of meltblown fabric and a functional layer on the other side. In principle, this technique could be easily integrated into the present automatic mask production process and the masks have self-cleaning and/or self-sterilizing properties when it is exposed to solar or simulated solar irradiation.
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Affiliation(s)
- Yi Lu
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Boulevard, Nanshan District, Shenzhen 518055, China
- Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
| | - Yi-Xuan Liu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing & Shenzhen Research Institute, Wuhan University of Technology, Wuhan 430070, China
| | - Yong Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing & Shenzhen Research Institute, Wuhan University of Technology, Wuhan 430070, China
| | - Robert Oestreich
- Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Zi-Yan Xu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing & Shenzhen Research Institute, Wuhan University of Technology, Wuhan 430070, China
| | - Wen Zhang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing & Shenzhen Research Institute, Wuhan University of Technology, Wuhan 430070, China
| | - Philipp Hügenell
- Division Thermal Systems and Buildings, Fraunhofer Institute for Solar Energy Systems ISE, Heidenhofstraße 2, Freiburg 79110, Germany
| | - Christoph Janiak
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Boulevard, Nanshan District, Shenzhen 518055, China
- Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Xiao-Yu Yang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing & Shenzhen Research Institute, Wuhan University of Technology, Wuhan 430070, China
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20
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Shen J, Shi W. Post-Pandemic: Investigation of the Degradation of Various Commercial Masks in the Marine Environment. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:10553-10564. [PMID: 37462155 PMCID: PMC10399566 DOI: 10.1021/acs.langmuir.3c01087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
During COVID-19, personal protective equipment such as face masks was in urgent demand in the daily life. As the pandemic may have withdrawn from public attention, the disposal of face masks is a significant issue, especially plastic pollution. To address the degradation of the polymers in the marine environment, seven commercial masks were investigated via artificial weathering procedures in substitute ocean water. A suite of structural and chemical characterization techniques was employed, including scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT-IR), Raman spectroscopy, X-ray diffraction (XRD), and contact angle goniometry, to probe the treatment impact on commercially available N95, surgical, polyurethane, polyester, nylon, silk, and cotton masks. This work provides insights into the comprehensive analysis of material degradation in nature and raises public awareness of environmental issues post-pandemic.
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Affiliation(s)
- Jiayi Shen
- Division of Natural and Applied Sciences, Duke Kunshan University, Kunshan, Jiangsu Province 215316, China
| | - Weiwei Shi
- Division of Natural and Applied Sciences, Duke Kunshan University, Kunshan, Jiangsu Province 215316, China
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21
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Zeng L, Li J, Lv M, Li Z, Yao L, Gao J, Wu Q, Wang Z, Yang X, Tang G, Qu G, Jiang G. Environmental Stability and Transmissibility of Enveloped Viruses at Varied Animate and Inanimate Interfaces. ENVIRONMENT & HEALTH (WASHINGTON, D.C.) 2023; 1:15-31. [PMID: 37552709 PMCID: PMC10255587 DOI: 10.1021/envhealth.3c00005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/11/2023] [Accepted: 04/13/2023] [Indexed: 08/10/2023]
Abstract
Enveloped viruses have been the leading causative agents of viral epidemics in the past decade, including the ongoing coronavirus disease 2019 outbreak. In epidemics caused by enveloped viruses, direct contact is a common route of infection, while indirect transmissions through the environment also contribute to the spread of the disease, although their significance remains controversial. Bridging the knowledge gap regarding the influence of interfacial interactions on the persistence of enveloped viruses in the environment reveals the transmission mechanisms when the virus undergoes mutations and prevents excessive disinfection during viral epidemics. Herein, from the perspective of the driving force, partition efficiency, and viral survivability at interfaces, we summarize the viral and environmental characteristics that affect the environmental transmission of viruses. We expect to provide insights for virus detection, environmental surveillance, and disinfection to limit the spread of severe acute respiratory syndrome coronavirus 2.
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Affiliation(s)
- Li Zeng
- State Key Laboratory of Environmental Chemistry and
Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese
Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of
Sciences, Beijing 100049, China
| | - Junya Li
- College of Sciences, Northeastern
University, Shenyang 110819, China
| | - Meilin Lv
- College of Sciences, Northeastern
University, Shenyang 110819, China
| | - Zikang Li
- State Key Laboratory of Environmental Chemistry and
Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese
Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of
Sciences, Beijing 100049, China
| | - Linlin Yao
- State Key Laboratory of Environmental Chemistry and
Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese
Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of
Sciences, Beijing 100049, China
| | - Jie Gao
- State Key Laboratory of Environmental Chemistry and
Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese
Academy of Sciences, Beijing 100085, China
- School of Environment, Hangzhou Institute
for Advanced Study, UCAS, Hangzhou 310000, China
| | - Qi Wu
- State Key Laboratory of Environmental Chemistry and
Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese
Academy of Sciences, Beijing 100085, China
- School of Environment, Hangzhou Institute
for Advanced Study, UCAS, Hangzhou 310000, China
| | - Ziniu Wang
- State Key Laboratory of Environmental Chemistry and
Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese
Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of
Sciences, Beijing 100049, China
| | - Xinyue Yang
- State Key Laboratory of Environmental Chemistry and
Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese
Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of
Sciences, Beijing 100049, China
| | - Gang Tang
- State Key Laboratory of Environmental Chemistry and
Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese
Academy of Sciences, Beijing 100085, China
- University of Chinese Academy of
Sciences, Beijing 100049, China
| | - Guangbo Qu
- State Key Laboratory of Environmental Chemistry and
Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese
Academy of Sciences, Beijing 100085, China
- School of Environment, Hangzhou Institute
for Advanced Study, UCAS, Hangzhou 310000, China
- Institute of Environment and Health,
Jianghan University, Wuhan 430056,
China
- University of Chinese Academy of
Sciences, Beijing 100049, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and
Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese
Academy of Sciences, Beijing 100085, China
- School of Environment, Hangzhou Institute
for Advanced Study, UCAS, Hangzhou 310000, China
- University of Chinese Academy of
Sciences, Beijing 100049, China
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22
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Shi B, Yu X, Pu Y, Wang D. A theoretical study on the filtration efficiency and dust holding performance of pleated air filters. Heliyon 2023; 9:e17944. [PMID: 37539126 PMCID: PMC10395295 DOI: 10.1016/j.heliyon.2023.e17944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 06/27/2023] [Accepted: 07/03/2023] [Indexed: 08/05/2023] Open
Abstract
Filter media composed of electrostatically charged nonwovens is the key device in an air purifier. Pleated filters are constructed from a cardboard frame with lattice faces containing a filter media reinforce by an expanded support grid, which have more surface area for trapping contaminants and capture airborne contaminants more effectively than non-pleated air filters. The aim of this work is to investigate the dominant factors on the filtration efficiency and dust holding performance of pleated filter by using a modified numerical model. It is found that geometric parameters of pleated filter play important roles to efficiency of the air purifier based on particle loading and filtration efficiency. The stable structural parameters include bending angle of pleated filter material in the range of 0∼60° and the ratio of bending portion less than 0.5. Lower filling degree and shorter length of pleated filter unit exhibit similar stability of efficiency, indicating that the change of structural parameters has little effects on the filtration performance. The knowledge obtained in this work provides concrete reference for the design of high-performance air-cleaner element.
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Affiliation(s)
- Bo Shi
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Xinyi Yu
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yuan Pu
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
| | - Dan Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029, China
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23
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Permyakova ES, Manakhov A, Kiryukhantsev-Korneev PV, Konopatsky AS, Makarets YA, Kotyakova KY, Filippovich SY, Ignatov SG, Solovieva AO, Shtansky DV. Self-Sanitizing Polycaprolactone Electrospun Nanofiber Membrane with Ag Nanoparticles. J Funct Biomater 2023; 14:336. [PMID: 37504830 PMCID: PMC10381801 DOI: 10.3390/jfb14070336] [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: 05/17/2023] [Revised: 06/16/2023] [Accepted: 06/21/2023] [Indexed: 07/29/2023] Open
Abstract
The objective of this research was to develop an environment-friendly and scalable method for the production of self-sanitizing electrospun nanofibers. This was achieved by immobilizing silver nanoparticles (Ag NPs) onto plasma-treated surfaces of biodegradable polycaprolactone (PCL) nanofibers. The plasma deposited polymer layer containing carboxyl groups played a critical role in providing a uniform distribution of Ag NPs on the nanofiber surface. Ag ions were absorbed by electrostatic interaction and then reduced under the action of UV-light. The concentration and release of Ag ions were analyzed using the EDXS/XPS and ICP AES methods, respectively. Although high levels of Ag ions were detected after 3 h of immersion in water, the material retained a sufficient amount of silver nanoparticles on the surface (~2.3 vs. 3.5 at.% as determined by XPS), and the release rate subsequently decreased over the next 69 h. The antipathogenic properties of PCL-Ag were tested against gram-negative and gram-positive bacteria, fungi, and biofilm formation. The results showed that the PCL-Ag nanofibers exhibit significant antimicrobial activity against a wide range of microorganisms, including those that cause human infections. The incorporation of Ag NPs into PCL nanofibers resulted in a self-sanitizing material that can be used in variety of applications, including wound dressings, water treatment, and air filtration. The development of a simple, scalable, and environmentally friendly method for the fabrication of these nanofibers is essential to ensure their widespread use in various industries. The ability to control the concentration and release rate of Ag ions in the PCL nanofibers will be critical to optimize their efficacy while minimizing their potential toxicity to human cells and the environment.
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Affiliation(s)
| | - Anton Manakhov
- National University of Science and Technology "MISIS", Moscow 119049, Russia
- Research Institute of Clinical and Experimental Lymphology-Branch of the ICG SB RAS, 2 Timakova st., Novosibirsk 630060, Russia
| | | | - Anton S Konopatsky
- National University of Science and Technology "MISIS", Moscow 119049, Russia
| | - Yulia A Makarets
- National University of Science and Technology "MISIS", Moscow 119049, Russia
| | | | | | - Sergey G Ignatov
- State Research Center for Applied Microbiology and Biotechnology, Obolensk 142279, Russia
| | - Anastasiya O Solovieva
- Research Institute of Clinical and Experimental Lymphology-Branch of the ICG SB RAS, 2 Timakova st., Novosibirsk 630060, Russia
| | - Dmitry V Shtansky
- National University of Science and Technology "MISIS", Moscow 119049, Russia
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24
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Ryu T, Ahn J, Park J. Through-hole composite membrane with an ultrathin oxide shell for highly robust and transparent air filters. JOURNAL OF HAZARDOUS MATERIALS 2023; 452:131241. [PMID: 36958166 DOI: 10.1016/j.jhazmat.2023.131241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 03/09/2023] [Accepted: 03/17/2023] [Indexed: 06/18/2023]
Abstract
Exploring pore structures that are optically transparent and have high filtration efficiency for ultrafine dust is very important for realizing passive window filters for indoor air purification. Herein, a polyester track-etched (PETE) membrane with vertically perforated micropores is investigated as a cost-effective candidate for transparent window filters. The pore size, which governs transparency and filtration efficiency, can be precisely tuned by conformally depositing an ultrathin oxide layer on the PETE membrane via atomic layer deposition. The maximum visible light transmittance (∼81.2 %) was achieved with an alumina layer of approximately 55 nm, and the resulting composite membrane exhibited competitive filtration efficiency compared to commercial products. The chemically inert alumina layer also increased resistance to various external stimuli and enabled simple cleaning of the contaminated membrane surface with a solvent. The membrane installed on an insect screen effectively maintained its filtration performance (∼85 % for PM2.5) even after 10 reuse cycles under extremely harsh conditions (PM2.5 concentration: ∼5000 μg cm-3). The proposed through-hole composite membrane can expand the choice of aesthetic window filters to situations that require high outside visibility and daylighting.
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Affiliation(s)
- Taehyun Ryu
- Department of Materials Science and Engineering, Kumoh National Institute of Technology, Gumi, Gyeongbuk 39177, Republic of Korea; Department of Energy Engineering Convergence, Kumoh National Institute of Technology, Gumi, Gyeongbuk 39177, Republic of Korea
| | - Junyong Ahn
- Department of Materials Science and Engineering, Kumoh National Institute of Technology, Gumi, Gyeongbuk 39177, Republic of Korea; Department of Energy Engineering Convergence, Kumoh National Institute of Technology, Gumi, Gyeongbuk 39177, Republic of Korea
| | - Junyong Park
- Department of Materials Science and Engineering, Kumoh National Institute of Technology, Gumi, Gyeongbuk 39177, Republic of Korea; Department of Energy Engineering Convergence, Kumoh National Institute of Technology, Gumi, Gyeongbuk 39177, Republic of Korea.
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25
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Li A, Cui H, Sheng Y, Qiao J, Li X, Huang H. Global plastic upcycling during and after the COVID-19 pandemic: The status and perspective. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 2023; 11:110092. [PMID: 37200549 PMCID: PMC10167783 DOI: 10.1016/j.jece.2023.110092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/10/2023] [Accepted: 05/08/2023] [Indexed: 05/20/2023]
Abstract
Plastic pollution has become one of the most pressing environmental issues worldwide since the vast majority of post-consumer plastics are hard to degrade in the environment. The coronavirus disease (COVID-19) pandemic had disrupted the previous effort of plastic pollution mitigation to a great extent due to the overflow of plastic-based medical waste. In the post-pandemic era, the remaining challenge is how to motivate global action towards a plastic circular economy. The need for one package of sustainable and systematic plastic upcycling approaches has never been greater to address such a challenge. In this review, we summarized the threat of plastic pollution during COVID-19 to public health and ecosystem. In order to solve the aforementioned challenges, we present a shifting concept, regeneration value from plastic waste, that provides four promising pathways to achieve a sustainable circular economy: 1) Increasing reusability and biodegradability of plastics; 2) Transforming plastic waste into high-value products by chemical approaches; 3) The closed-loop recycling can be promoted by biodegradation; 4) Involving renewable energy into plastic upcycling. Additionally, the joint efforts from different social perspectives are also encouraged to create the necessary economic and environmental impetus for a circular economy.
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Affiliation(s)
- Anni Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210009, People's Republic of China
| | - Haiyang Cui
- RWTH Aachen University, Templergraben 55, 52062 Aachen, Germany
| | - Yijie Sheng
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210009, People's Republic of China
| | - Jie Qiao
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210009, People's Republic of China
| | - Xiujuan Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210009, People's Republic of China
| | - He Huang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210009, People's Republic of China
- School of Pharmaceutical Sciences, Nanjing Tech University, No. 30 South Puzhu Road, Nanjing 211816, People's Republic of China
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26
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Zhao P, Wang R, Xiang J, Zhang J, Wu X, Chen C, Liu G. Antibacterial, antiviral, and biodegradable collagen network mask for effective particulate removal and wireless breath monitoring. JOURNAL OF HAZARDOUS MATERIALS 2023; 456:131654. [PMID: 37236103 DOI: 10.1016/j.jhazmat.2023.131654] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 04/21/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023]
Abstract
Functional face masks that can effectively remove particulate matter and pathogens are critical to addressing the urgent health needs arising from industrial air pollution and the COVID-19 pandemic. However, most commercial masks are manufactured by tedious and complicated network-forming procedures (e.g., meltblowing and electrospinning). In addition, the materials used (e.g., polypropylene) have significant limitations such as a lack of pathogen inactivation and degradability, which can cause secondary infection and serious environmental concerns if discarded. Here, we present a facile and straightforward method for creating biodegradable and self-disinfecting masks based on collagen fiber networks. These masks not only provide superior protection against a wide range of hazardous substances in polluted air, but also address environmental concerns associated with waste disposal. Importantly, collagen fiber networks with naturally existing hierarchical microporous structures can be easily modified by tannic acid to improve its mechanical characteristics and enable the in situ production of silver nanoparticles. The resulting masks exhibit excellent antibacterial (>99.99%, 15 min) and antiviral (>99.999%, 15 min) capabilities, as well as high PM2.5 removal efficiency (>99.9%, 30 s). We further demonstrate the integration of the mask into a wireless platform for respiratory monitoring. Therefore, the smart mask has enormous promise for combating air pollution and contagious viruses, managing personal health, and alleviating waste issues caused by commercial masks.
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Affiliation(s)
- Peng Zhao
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Rui Wang
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Jun Xiang
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Jinwei Zhang
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Xiaodong Wu
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China
| | - Chaojian Chen
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
| | - Gongyan Liu
- Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, China.
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27
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Ma J, Chen F, Chen CC, Zhang Z, Zhong Z, Jiang H, Pu J, Li Y, Pan K. Comparison between discarded facemask and common plastic waste on microbial colonization and physiochemical properties during aging in seawater. JOURNAL OF HAZARDOUS MATERIALS 2023; 455:131583. [PMID: 37201275 DOI: 10.1016/j.jhazmat.2023.131583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/12/2023] [Accepted: 05/04/2023] [Indexed: 05/20/2023]
Abstract
Facemasks are indispensable for preventing the spread of COVID-19. However, improper disposal of discarded facemasks has led to their contamination in the marine environment. To understand the environmental risk of this emerging plastic pollution, it's important to clarify the features that distinguish discarded facemasks from common plastic waste during aging. This study compared the microbial colonization, degradation-related enzymes, and physicochemical properties among surgical masks, polystyrene cups, polycarbonate bottles, and polyethylene terephthalate bottles in their aging processes in natural seawater. Compared to the other plastic wastes, surgical masks were colonized by the most diverse microorganisms, reaching 1521 unique prokaryotic OTUs after 21-day exposure in seawater. Moreover, the activity of eukaryotic enzymes associated with plastic degradation was 80-fold higher than that in seawater, indicating that the colonized eukaryotes would be the major microorganisms degrading the surgical masks. Meanwhile, the nano-sized defects (depth between 8 and 61 nm) would evolve into cracks of bigger sizes and result in the breakage of the microfibers and releasing microplastics into the ocean. Overall, our study demonstrated a distinctive plastisphere occurred in surgical masks from both microbial and physiochemical aspects. This work provides new insights for assessing the potential risk of plastic pollution caused by the COVID-19 pandemic.
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Affiliation(s)
- Jie Ma
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, Guangdong, China
| | - Fengyuan Chen
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, Guangdong, China
| | - Ciara Chun Chen
- College of Chemistry and Chemical Engineering, Shantou University, Shantou 515063, Guangdong, China
| | - Zhen Zhang
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, Guangdong, China; Department of Ocean Science, The Hong Kong University of Science and Technology, Hong Kong Special Administrative Region of China
| | - Zihan Zhong
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, Guangdong, China
| | - Hao Jiang
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, Hubei, China
| | - Junbao Pu
- Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, Hubei, China
| | - Yanping Li
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, Guangdong, China
| | - Ke Pan
- Shenzhen Key Laboratory of Marine Microbiome Engineering, Institute for Advanced Study, Shenzhen University, Shenzhen 518060, Guangdong, China.
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Cui X, Ruan Q, Zhuo X, Xia X, Hu J, Fu R, Li Y, Wang J, Xu H. Photothermal Nanomaterials: A Powerful Light-to-Heat Converter. Chem Rev 2023. [PMID: 37133878 DOI: 10.1021/acs.chemrev.3c00159] [Citation(s) in RCA: 75] [Impact Index Per Article: 75.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
All forms of energy follow the law of conservation of energy, by which they can be neither created nor destroyed. Light-to-heat conversion as a traditional yet constantly evolving means of converting light into thermal energy has been of enduring appeal to researchers and the public. With the continuous development of advanced nanotechnologies, a variety of photothermal nanomaterials have been endowed with excellent light harvesting and photothermal conversion capabilities for exploring fascinating and prospective applications. Herein we review the latest progresses on photothermal nanomaterials, with a focus on their underlying mechanisms as powerful light-to-heat converters. We present an extensive catalogue of nanostructured photothermal materials, including metallic/semiconductor structures, carbon materials, organic polymers, and two-dimensional materials. The proper material selection and rational structural design for improving the photothermal performance are then discussed. We also provide a representative overview of the latest techniques for probing photothermally generated heat at the nanoscale. We finally review the recent significant developments of photothermal applications and give a brief outlook on the current challenges and future directions of photothermal nanomaterials.
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Affiliation(s)
- Ximin Cui
- State Key Laboratory of Radio Frequency Heterogeneous Integration, College of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, China
| | - Qifeng Ruan
- Ministry of Industry and Information Technology Key Lab of Micro-Nano Optoelectronic Information System & Guangdong Provincial Key Laboratory of Semiconductor Optoelectronic Materials and Intelligent Photonic Systems, Harbin Institute of Technology, Shenzhen 518055, China
| | - Xiaolu Zhuo
- Guangdong Provincial Key Lab of Optoelectronic Materials and Chips, School of Science and Engineering, The Chinese University of Hong Kong (Shenzhen), Shenzhen 518172, China
| | - Xinyue Xia
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 999077, China
| | - Jingtian Hu
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 999077, China
| | - Runfang Fu
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 999077, China
| | - Yang Li
- State Key Laboratory of Radio Frequency Heterogeneous Integration, College of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, China
| | - Jianfang Wang
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 999077, China
| | - Hongxing Xu
- School of Physics and Technology and School of Microelectronics, Wuhan University, Wuhan 430072, Hubei, China
- Henan Academy of Sciences, Zhengzhou 450046, Henan, China
- Wuhan Institute of Quantum Technology, Wuhan 430205, Hubei, China
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29
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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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Vázquez-López A, Del Río Saez JS, de la Vega J, Ao X, Wang DY. All-Fabric Triboelectric Nanogenerator (AF-TENG) Smart Face Mask: Remote Long-Rate Breathing Monitoring and Apnea Alarm. ACS Sens 2023; 8:1684-1692. [PMID: 36976959 DOI: 10.1021/acssensors.2c02825] [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] [Indexed: 03/30/2023]
Abstract
Since the beginning of the COVID-19 pandemic, the use of face masks has become not only mandatory in several countries but also an acceptable approach for combating the pandemic. In the quest for designing an effective and useful face mask, triboelectric nanogenerators (TENGs) have been recently proposed. Novel functionalities are provided with the use of TENGs in face masks due to the induced triboelectrification generated by the exhaled and inhaled breath, allowing their use as an energy sensor. Nonetheless, within the face mask, the presence of nontextile plastics or other common triboelectric (TE) materials can be undesired. Herein, we propose the use of an all-fabric TENG (AF-TENG) with the use of high molecular weight polyethylene (UHMWPE) and cotton fabric as negative and positive triboelectric layers, respectively. With these materials, it is possible to detect the breathing of the patient, which in the case of not detecting a signal over a few minutes can trigger an alarm locally, providing valuable time. Also, in this article, we have sent breathing signals locally and remotely to distances up to 20 km via Wi-Fi and LoRa, the same as warning signals in the case of detecting anomalies. This work reveals the use of TENGs in smart face masks as an important tool to be used in difficult epidemiological periods to the general public, bringing much more comfort and relaxation to patients and elderly in today's society, and based on pristine eco-friendly materials.
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Affiliation(s)
- Antonio Vázquez-López
- IMDEA Materials Institute, C/Eric Kandel, 2, Getafe, 28906 Madrid, Spain
- Materials Science and Engineering Area, Escuela Superior de Ciencias Experimentales y Tecnología, Universidad Rey Juan Carlos, C/Tulipán s/n, 28933 Madrid, Spain
| | - José Sánchez Del Río Saez
- IMDEA Materials Institute, C/Eric Kandel, 2, Getafe, 28906 Madrid, Spain
- Departamento de Ingeniería Eléctrica, Electrónica Automática y Física Aplicada, ETSIDI, Universidad Politécnica de Madrid, Ronda de Valencia 3, 28012 Madrid, Spain
- Institute for Research in Technology, ICAI School of Engineering, Pontifical Comillas University, Madrid, C/Santa Cruz de Marcenado, 26, 28015 Madrid, Spain
| | - Jimena de la Vega
- IMDEA Materials Institute, C/Eric Kandel, 2, Getafe, 28906 Madrid, Spain
| | - Xiang Ao
- IMDEA Materials Institute, C/Eric Kandel, 2, Getafe, 28906 Madrid, Spain
| | - De-Yi Wang
- IMDEA Materials Institute, C/Eric Kandel, 2, Getafe, 28906 Madrid, Spain
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Plohl O, Kokol V, Filipić A, Fric K, Kogovšek P, Fratnik ZP, Vesel A, Kurečič M, Robič J, Gradišnik L, Maver U, Zemljič LF. Screen-printing of chitosan and cationised cellulose nanofibril coatings for integration into functional face masks with potential antiviral activity. Int J Biol Macromol 2023; 236:123951. [PMID: 36898451 PMCID: PMC9995302 DOI: 10.1016/j.ijbiomac.2023.123951] [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: 01/03/2023] [Revised: 02/21/2023] [Accepted: 03/03/2023] [Indexed: 03/11/2023]
Abstract
Masks proved to be necessary protective measure during the COVID-19 pandemic, but they provided a physical barrier rather than inactivating viruses, increasing the risk of cross-infection. In this study, high-molecular weight chitosan and cationised cellulose nanofibrils were screen-printed individually or as a mixture onto the inner surface of the first polypropylene (PP) layer. First, biopolymers were evaluated by various physicochemical methods for their suitability for screen-printing and antiviral activity. Second, the effect of the coatings was evaluated by analysing the morphology, surface chemistry, charge of the modified PP layer, air permeability, water-vapour retention, add-on, contact angle, antiviral activity against the model virus phi6 and cytotoxicity. Finally, the functional PP layers were integrated into face masks, and resulting masks were tested for wettability, air permeability, and viral filtration efficiency (VFE). Air permeability was reduced for modified PP layers (43 % reduction for kat-CNF) and face masks (52 % reduction of kat-CNF layer). The antiviral potential of the modified PP layers against phi6 showed inhibition of 0.08 to 0.97 log (pH 7.5) and cytotoxicity assay showed cell viability above 70 %. VFE of the masks remained the same (~99.9 %), even after applying the biopolymers, confirming that these masks provided high level of protection against viruses.
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Affiliation(s)
- Olivija Plohl
- University of Maribor, Faculty of Mechanical Engineering, Smetanova ulica 17, 2000 Maribor, Slovenia.
| | - Vanja Kokol
- University of Maribor, Faculty of Mechanical Engineering, Smetanova ulica 17, 2000 Maribor, Slovenia.
| | - Arijana Filipić
- National Institute of Biology, Department of Biotechnology and Systems Biology, Večna pot 111, 1000 Ljubljana, Slovenia.
| | - Katja Fric
- National Institute of Biology, Department of Biotechnology and Systems Biology, Večna pot 111, 1000 Ljubljana, Slovenia.
| | - Polona Kogovšek
- National Institute of Biology, Department of Biotechnology and Systems Biology, Večna pot 111, 1000 Ljubljana, Slovenia.
| | - Zdenka Peršin Fratnik
- University of Maribor, Faculty of Mechanical Engineering, Smetanova ulica 17, 2000 Maribor, Slovenia.
| | - Alenka Vesel
- Jožef Stefan Institute, Department of Surface Engineering and Optoelectronics, Teslova 30, 1000 Ljubljana, Slovenia.
| | - Manja Kurečič
- University of Maribor, Faculty of Mechanical Engineering, Smetanova ulica 17, 2000 Maribor, Slovenia.
| | - Jure Robič
- Omega Air d.o.o Ljubljana, Cesta Dolomitskega odreda 10, 1000 Ljubljana, Slovenia.
| | - Lidija Gradišnik
- University of Maribor, Faculty of Medicine, Institute of Biomedical Sciences, Taborska ulica 8, 2000 Maribor, Slovenia.
| | - Uroš Maver
- University of Maribor, Faculty of Medicine, Institute of Biomedical Sciences, Taborska ulica 8, 2000 Maribor, Slovenia.
| | - Lidija Fras Zemljič
- University of Maribor, Faculty of Mechanical Engineering, Smetanova ulica 17, 2000 Maribor, Slovenia.
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32
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Bhangare RC, Tiwari M, Ajmal PY, Rathod TD, Sahu SK. Exudation of microplastics from commonly used face masks in COVID-19 pandemic. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:35258-35268. [PMID: 36527557 PMCID: PMC9758682 DOI: 10.1007/s11356-022-24702-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
The COVID-19 pandemic forced use of face masks up to billions of masks per day globally. Though an important and necessary measure for control of the pandemic, use of masks also poses some inherent risks. One of those risks is inhalation of microplastics released from the mask materials. Since most of the mask materials are made from plastic/polymers, they always have the potential to expose the user to fragmented microplastics. To estimate the amount of inhalable microplastic exuded from masks, an experiment simulating real-life scenario of mask usage was performed. The study included collection of microplastics oozed out from the masks on to a filter paper followed by staining and fluorescence detection of the total number of microplastics using a microscope. Both used and new masks were studied. Based on the emission wavelength, the microplastics were found to be belonging to three different categories, namely blue, green and red emitting microplastics respectively. The number of microplastic particles emitted per mask over a period of usage of 8 h was about 5000 to 9000 for new masks and about 6500 to 15,000 for used masks respectively. The estimation of polymer type of plastic in the mask fabrics was also carried out using Raman and FTIR spectroscopy.
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Affiliation(s)
- Rahul C Bhangare
- Environmental Monitoring and Assessment Division, Health Safety and Environment Group, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - Mahesh Tiwari
- Environmental Monitoring and Assessment Division, Health Safety and Environment Group, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - Puthiyaveettilparambu Yousuf Ajmal
- Environmental Monitoring and Assessment Division, Health Safety and Environment Group, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - Tejas D Rathod
- Environmental Monitoring and Assessment Division, Health Safety and Environment Group, Bhabha Atomic Research Centre, Mumbai, 400085, India
| | - Sanjay K Sahu
- Environmental Monitoring and Assessment Division, Health Safety and Environment Group, Bhabha Atomic Research Centre, Mumbai, 400085, India.
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33
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Kim J, Mayorga-Martinez CC, Pumera M. Magnetically boosted 1D photoactive microswarm for COVID-19 face mask disruption. Nat Commun 2023; 14:935. [PMID: 36804569 PMCID: PMC9939864 DOI: 10.1038/s41467-023-36650-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 02/10/2023] [Indexed: 02/22/2023] Open
Abstract
The recent COVID-19 pandemic has resulted in the massive discard of pandemic-related plastic wastes, causing serious ecological harm and a high societal burden. Most single-use face masks are made of synthetic plastics, thus their careless disposal poses a direct threat to wildlife as well as potential ecotoxicological effects in the form of microplastics. Here, we introduce a 1D magnetic photoactive microswarm capable of actively navigating, adhering to, and accelerating the degradation of the polypropylene microfiber of COVID-19 face masks. 1D microrobots comprise an anisotropic magnetic core (Fe3O4) and photocatalytic shell (Bi2O3/Ag), which enable wireless magnetic maneuvering and visible-light photocatalysis. The actuation of a programmed rotating magnetic field triggers a fish schooling-like 1D microswarm that allows active interfacial interactions with the microfiber network. The follow-up light illumination accelerates the disruption of the polypropylene microfiber through the photo-oxidative process as corroborated by morphological, compositional, and structural analyses. The active magnetic photocatalyst microswarm suggests an intriguing microrobotic solution to treat various plastic wastes and other environmental pollutants.
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Affiliation(s)
- Jeonghyo Kim
- Center for Advanced Functional Nanorobots, Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague, Czech Republic
| | - Carmen C Mayorga-Martinez
- Center for Advanced Functional Nanorobots, Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague, Czech Republic
| | - Martin Pumera
- Center for Advanced Functional Nanorobots, Department of Inorganic Chemistry, Faculty of Chemical Technology, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague, Czech Republic. .,Faculty of Electrical Engineering and Computer Science, VSB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00, Ostrava, Czech Republic. .,Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Korea. .,Department of Medical Research, China Medical University Hospital, China Medical University, No. 91 Hsueh-Shih Road, Taichung, 40402, Taiwan.
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34
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Hatta MHM, Matmin J, Malek NANN, Kamisan FH, Badruzzaman A, Batumalaie K, Ling Lee S, Abdul Wahab R. COVID‐19: Prevention, Detection, and Treatment by Using Carbon Nanotubes‐Based Materials. ChemistrySelect 2023. [DOI: 10.1002/slct.202204615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- Mohd Hayrie Mohd Hatta
- Centre for Research and Development Asia Metropolitan University 81750 Johor Bahru Johor Malaysia
| | - Juan Matmin
- Department of Chemistry Faculty of Science Universiti Teknologi Malaysia 81310 UTM Johor Bahru Johor Malaysia
- Centre for Sustainable Nanomaterials Ibnu Sina Institute for Scientific and Industrial Research Universiti Teknologi Malaysia 81310 UTM Johor Bahru Johor Malaysia
| | - Nik Ahmad Nizam Nik Malek
- Centre for Sustainable Nanomaterials Ibnu Sina Institute for Scientific and Industrial Research Universiti Teknologi Malaysia 81310 UTM Johor Bahru Johor Malaysia
- Department of Biosciences, Faculty of Science Universiti Teknologi Malaysia 81310 UTM Johor Bahru Johor Malaysia
| | - Farah Hidayah Kamisan
- Department of Biomedical Sciences Faculty of Health Sciences Asia Metropolitan University 81750 Johor Bahru Johor Malaysia
| | - Aishah Badruzzaman
- Centre for Foundation, Language and General Studies Asia Metropolitan University 81750 Johor Bahru Johor Malaysia
| | - Kalaivani Batumalaie
- Department of Biomedical Sciences Faculty of Health Sciences Asia Metropolitan University 81750 Johor Bahru Johor Malaysia
| | - Siew Ling Lee
- Department of Chemistry Faculty of Science Universiti Teknologi Malaysia 81310 UTM Johor Bahru Johor Malaysia
- Centre for Sustainable Nanomaterials Ibnu Sina Institute for Scientific and Industrial Research Universiti Teknologi Malaysia 81310 UTM Johor Bahru Johor Malaysia
| | - Roswanira Abdul Wahab
- Department of Chemistry Faculty of Science Universiti Teknologi Malaysia 81310 UTM Johor Bahru Johor Malaysia
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35
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Pang Q, Fang M, Wang L, Mi K, Su M. Increasing Couriers' Job Satisfaction through Social-Sustainability Practices: Perceived Fairness and Psychological-Safety Perspectives. Behav Sci (Basel) 2023; 13:bs13020125. [PMID: 36829354 PMCID: PMC9952704 DOI: 10.3390/bs13020125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/10/2023] [Accepted: 01/19/2023] [Indexed: 02/05/2023] Open
Abstract
Due to the spike in online-retail demand during the pandemic, couriers confront increased workload and safety concerns, posing significant social-sustainability challenges for courier companies. This study explores the impact of social-sustainability practices on couriers' job satisfaction in the context of the COVID-19 pandemic. We designed the research model from the theoretical lens of Maslow's hierarchy of needs, equity, and psychological-safety theories. We collected the views of 428 couriers from the Chinese market, where there is a developed e-commerce industry. The structural-equation-model analysis results found that social-sustainability practices such as working environment, working conditions, health and safety, education, and training positively affected the job satisfaction of couriers during the pandemic through the mediators (psychological safety and perceived fairness). These findings provide empirical recommendations for improving employees' job satisfaction in courier companies during COVID-19 and addressing the social-sustainability issues of courier companies.
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Affiliation(s)
- Qiwei Pang
- College of International Economics & Trade, Ningbo University of Finance & Economics, Ningbo 315175, China
- Department of Economics, Sejong University, Seoul 05006, Republic of Korea
| | - Mingjie Fang
- Department of Logistics, Service & Operations Management, Korea University Business School, Seoul 02841, Republic of Korea
| | - Lu Wang
- Department of Economics, Sejong University, Seoul 05006, Republic of Korea
- School of Business, Zhejiang University City College, Hangzhou 310015, China
| | - Kena Mi
- College of International Economics & Trade, Ningbo University of Finance & Economics, Ningbo 315175, China
| | - Miao Su
- The Graduate School of Technology Management, Kyunghee University, Yongin 17104, Republic of Korea
- Correspondence: ; Tel.: +82-10-7737-5535
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36
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Zhu Z, Liang A, Haotian R, Tang S, Liu M, Xie B, Luo A. Application of Biosensors in the Detection of SARS-CoV-2. ACTA CHIMICA SINICA 2023. [DOI: 10.6023/a22120483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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37
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Grasso G, Zane D, Foglia S, Dragone R. Application of Electrospun Water-Soluble Synthetic Polymers for Multifunctional Air Filters and Face Masks. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248753. [PMID: 36557885 PMCID: PMC9784125 DOI: 10.3390/molecules27248753] [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: 10/31/2022] [Revised: 11/30/2022] [Accepted: 12/05/2022] [Indexed: 12/14/2022]
Abstract
The worsening of air quality is an urgent human health issue of modern society. The outbreak of COVID-19 has made the improvement of air quality even more imperative, both for the general achievement of major health gains and to reduce the critical factors in the transmission of airborne diseases. Thus, the development of solutions for the filtration of airborne pollutants is pivotal. Electrospinning has gained wide attention as an effective fabrication technique for preparing ultrafine fibers which are specifically tailored for air filtration. Nevertheless, the utilization of harmful organic solvents is the major barrier for the large-scale applicability of electrospinning. The use of water-soluble synthetic polymers has attracted increasing attention as a 'green' solution in electrospinning. We reported an overview of the last five years of the scientific literature on the use of water-soluble synthetic polymers for the fabrication of multifunctional air filters layers. Most of recent studies have focused on polyvinyl alcohol (PVA). Various modifications of electrospun polymers have been also described. The use of water-soluble synthetic polymers can contribute to the scalability of electrospinning and pave the way to innovative applications. Further studies will be required to fully harness the potentiality of these 'greener' electrospinning processes.
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Affiliation(s)
- Gerardo Grasso
- Istituto per lo Studio dei Materiali Nanostrutturati Sede Sapienza, Consiglio Nazionale delle Ricerche, P. le Aldo Moro 5, 00185 Rome, Italy
- Correspondence: ; Tel.: +39-06-4991-3380
| | - Daniela Zane
- Istituto per lo Studio dei Materiali Nanostrutturati Sede Sapienza, Consiglio Nazionale delle Ricerche, P. le Aldo Moro 5, 00185 Rome, Italy
| | - Sabrina Foglia
- Istituto per lo Studio dei Materiali Nanostrutturati Sede Sapienza, Consiglio Nazionale delle Ricerche, P. le Aldo Moro 5, 00185 Rome, Italy
- Istituto dei Materiali per l’Elettronica ed il Magnetismo, Consiglio Nazionale delle Ricerche, Parco Area delle Scienze 37/A, 43124 Parma, Italy
| | - Roberto Dragone
- Istituto per lo Studio dei Materiali Nanostrutturati Sede Sapienza, Consiglio Nazionale delle Ricerche, P. le Aldo Moro 5, 00185 Rome, Italy
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38
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Ahn J, Park H, Ryu T, Park J. Core-shell structured, mixed cellulose ester-alumina composite membranes for air filters with improved environmental resistance. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.123012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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39
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Shao Z, Chen H, Wang Q, Kang G, Wang X, Li W, Liu Y, Zheng G. High-performance multifunctional electrospun fibrous air filter for personal protection: A review. Sep Purif Technol 2022; 302:122175. [PMID: 36168392 PMCID: PMC9492398 DOI: 10.1016/j.seppur.2022.122175] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/13/2022] [Accepted: 09/16/2022] [Indexed: 11/05/2022]
Abstract
With the increasingly serious air pollution and the rampant coronavirus disease 2019 (COVID–19), preparing high–performance air filter to achieve the effective personal protection has become a research hotspot. Electrospun nanofibrous membrane has become the first choice of air filter because of its small diameter, high specific surface area and porosity. However, improving the filtration performance of the filter only cannot meet the personal needs: it should be given more functions based on high filtration performance to maximize the personal benefits, called, multifunctional, which can also be easily realized by electrospinning technology, and has attracted much attention. In this review, the filtration mechanism of high–performance electrospun air filter is innovatively summarized from the perspective of membrane. On this basis, the specific preparation process, advantages and disadvantages are analyzed in detail. Furthermore, other functions required for achieving maximum personal protection benefits are introduced specifically, and the existing high–performance electrospun air filter with multiple functions are summarized. Finally, the challenges, limitations, and development trends of manufacturing high–performance air filter with multiple functions for personal protection are presented.
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Affiliation(s)
- Zungui Shao
- Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361102, China
| | - Huatan Chen
- Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361102, China
| | - Qingfeng Wang
- Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361102, China
| | - Guoyi Kang
- Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361102, China
| | - Xiang Wang
- School of Mechanical and Automotive Engineering, Xiamen University of Technology, Xiamen 361024, China
| | - Wenwang Li
- School of Mechanical and Automotive Engineering, Xiamen University of Technology, Xiamen 361024, China
| | - Yifang Liu
- Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361102, China
| | - Gaofeng Zheng
- Department of Instrumental and Electrical Engineering, Xiamen University, Xiamen 361102, China
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40
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Giedraitienė A, Ruzauskas M, Šiugždinienė R, Tučkutė S, Milcius D. Antimicrobial Properties of CuO Particles Deposited on a Medical Mask. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7896. [PMID: 36431382 PMCID: PMC9693313 DOI: 10.3390/ma15227896] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 10/28/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
Medical face masks help to reduce the transmission of pathogens, however, the number of infections caused by antimicrobial-resistant pathogens continues to increase. The aim of this study was to investigate the antimicrobial effect of an experimental medical mask layer coated with copper oxide using an environmentally friendly non-thermal physical vapour deposition approach. Pure CuO nanoparticles were successfully deposited on the middle layer of a face mask. The particles were distributed in different size clusters (starting from less than 100 nm dots going up to about 1 µm cluster-like structures). The CuO clusters did not form uniform films, which could negatively influence airflow during use of the mask. We investigated the antimicrobial properties of the experimental mask layer coated with CuO NPs using 17 clinical and zoonotic strains of gram-negative, gram-positive, spore-forming bacteria and yeasts, during direct and indirect contact with the mask surface. The effectiveness of the coated mask layer depended on the deposition duration of CuO. The optimal time for deposition was 30 min, which ensured a bactericidal effect for both gram-positive and gram-negative bacteria, including antimicrobial-resistant strains, using 150 W power. The CuO NPs had little or no effect on Candida spp. yeasts.
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Affiliation(s)
- Agnė Giedraitienė
- Institute of Microbiology and Virology, Faculty of Veterinary Medicine, Lithuanian University of Health Sciences, Mickeviciaus 9, 44307 Kaunas, Lithuania
| | - Modestas Ruzauskas
- Institute of Microbiology and Virology, Faculty of Veterinary Medicine, Lithuanian University of Health Sciences, Mickeviciaus 9, 44307 Kaunas, Lithuania
| | - Rita Šiugždinienė
- Institute of Microbiology and Virology, Faculty of Veterinary Medicine, Lithuanian University of Health Sciences, Mickeviciaus 9, 44307 Kaunas, Lithuania
| | - Simona Tučkutė
- Center for Hydrogen Energy Technologies, Lithuanian Energy Institute, 44403 Kaunas, Lithuania
| | - Darius Milcius
- Center for Hydrogen Energy Technologies, Lithuanian Energy Institute, 44403 Kaunas, Lithuania
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Rao Y, Feng S, Low ZX, Wu J, Ju S, Zhong Z, Xing W. Biocompatible curcumin coupled nanofibrous membrane for pathogens sterilization and isolation. J Memb Sci 2022; 661:120885. [PMID: 35966152 PMCID: PMC9364930 DOI: 10.1016/j.memsci.2022.120885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/19/2022] [Accepted: 07/29/2022] [Indexed: 11/26/2022]
Abstract
Airborne transmission of pathogens is the most probable cause for the spread of respiratory diseases, which can be intercepted by personal protective equipment such as masks. In this study, an efficient antiviral personal protective filter was fabricated by coupling the biocompatible curcumin (CCM) with nanofibrous polytetrafluoroethylene (PTFE) membrane. The CCM extracted from plants was first dissolved in acidified ethanol at a certain pH and temperature to optimize its loading concentration, antiviral activation, and binding forces on the polyethylene terephthalate (PET) support to form a pre-filtration layer at the front section of the filter. Ultrathin PTFE membrane was then fabricated on the antibacterial-antiviral PET support (A-A PET) by controllable heating lamination. This functional layer of the filter exhibits good gas permeance (3423.6 m3/(m2·h·kPa)) and ultrafine particles rejection rate (>98.79%). Moreover, the obtained A-A filter exhibit a high antibacterial rate against a variety of bacteria (E. coli, B. subtilis, A. niger, and Penicillium were 99.84%, 99.02%, 93.60%, 95.23%, respectively). Forthwith virucidal (SARS-CoV-2) efficiency of the A-A filter can reach 99.90% for 5 min. The filter shows good stability after 10 heating cycles, demonstrating its reusability.
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Affiliation(s)
- Yuanyuan Rao
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, China
| | - Shasha Feng
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, China
| | - Ze-Xian Low
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, China.,Department of Chemical and Biological Engineering, Monash University, Clayton, VIC, 3800, Australia
| | - Junwei Wu
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, China.,Jiangsu Jiulang High-Tech Co., Ltd, Nanjing, 210009, China
| | - Shengui Ju
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, China
| | - Zhaoxiang Zhong
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, China
| | - Weihong Xing
- State Key Laboratory of Materials-Oriented Chemical Engineering, National Engineering Research Center for Special Separation Membrane, Nanjing Tech University, Nanjing, 210009, China
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Seivwright A, Kaleveld L, Meltzer A, Atkins M, Varadharajan M, Campbell P, Callis Z, Wilson E. Adaptation among aged care and disability service providers in response to the COVID-19 pandemic: Lessons for the future. FRONTIERS IN HEALTH SERVICES 2022; 2:1037256. [PMID: 36925873 PMCID: PMC10012687 DOI: 10.3389/frhs.2022.1037256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 10/13/2022] [Indexed: 11/06/2022]
Abstract
Aged care and disability service organizations are critical infrastructure. However, in 2020, restrictions were introduced to reduce the infection risk of the coronavirus disease 2019 (COVID-19), and these organizations needed to quickly devise COVID-safe ways of working to continue to meet the needs of their clients. To investigate how these organizations adapted their service delivery and which innovations they felt were worthwhile for sustaining beyond the COVID-19 pandemic, interviews were undertaken with representatives from 26 aged care and disability service organizations across three states in Australia (Western Australia, New South Wales, and Victoria). Findings revealed that organizations adapted their practices across three key innovation areas: (1) developing new approaches or expanding existing services, particularly around food provision, social connection, information dissemination, and technology support; (2) modifying the mode of service delivery, through safe in-person contact or offering alternative online services; and (3) reducing bureaucracy and introducing remote working. A common theme across all service innovations was the strong focus on providing clients and staff with choice and control. Moving forward, many organizations wanted to integrate and maintain these innovations, as they were associated with additional benefits such as increased client health and safety, service flexibility, and sufficient human resources to serve clients. However, continued maintenance of some initiatives require additional resourcing. The continuation of COVID-19 pandemic adaptations and, indeed, ongoing innovation, would therefore be facilitated by greater flexibility of funding to allow organizations and their clients to determine the service types and modes that best meet their needs. Further, these innovations have implications for sector-wide best practice.
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Affiliation(s)
- Ami Seivwright
- Institute for Social Change, University of Tasmania, Hobart, TAS, Australia
| | - Lisette Kaleveld
- Centre for Social Impact, The University of Western Australia, Perth, WA, Australia
| | - Ariella Meltzer
- Centre for Social Impact, University of New South Wales, Sydney, NSW, Australia
| | - Mariana Atkins
- Centre for Social Impact, The University of Western Australia, Perth, WA, Australia
| | - Meera Varadharajan
- Centre for Social Impact, University of New South Wales, Sydney, NSW, Australia
| | - Perri Campbell
- Centre for Social Impact, Swinburne University of Technology, Hawthorn, VIC, Australia
| | - Zoe Callis
- Centre for Social Impact, The University of Western Australia, Perth, WA, Australia
| | - Erin Wilson
- Centre for Social Impact, Swinburne University of Technology, Hawthorn, VIC, Australia
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Suo J, Liu Y, Wu C, Chen M, Huang Q, Liu Y, Yao K, Chen Y, Pan Q, Chang X, Leung AYL, Chan H, Zhang G, Yang Z, Daoud W, Li X, Roy VAL, Shen J, Yu X, Wang J, Li WJ. Wide-Bandwidth Nanocomposite-Sensor Integrated Smart Mask for Tracking Multiphase Respiratory Activities. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2203565. [PMID: 35999427 PMCID: PMC9631096 DOI: 10.1002/advs.202203565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/03/2022] [Indexed: 06/15/2023]
Abstract
Wearing masks has been a recommended protective measure due to the risks of coronavirus disease 2019 (COVID-19) even in its coming endemic phase. Therefore, deploying a "smart mask" to monitor human physiological signals is highly beneficial for personal and public health. This work presents a smart mask integrating an ultrathin nanocomposite sponge structure-based soundwave sensor (≈400 µm), which allows the high sensitivity in a wide-bandwidth dynamic pressure range, i.e., capable of detecting various respiratory sounds of breathing, speaking, and coughing. Thirty-one subjects test the smart mask in recording their respiratory activities. Machine/deep learning methods, i.e., support vector machine and convolutional neural networks, are used to recognize these activities, which show average macro-recalls of ≈95% in both individual and generalized models. With rich high-frequency (≈4000 Hz) information recorded, the two-/tri-phase coughs can be mapped while speaking words can be identified, demonstrating that the smart mask can be applicable as a daily wearable Internet of Things (IoT) device for respiratory disease identification, voice interaction tool, etc. in the future. This work bridges the technological gap between ultra-lightweight but high-frequency response sensor material fabrication, signal transduction and processing, and machining/deep learning to demonstrate a wearable device for potential applications in continual health monitoring in daily life.
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Affiliation(s)
- Jiao Suo
- Dept. of Mechanical EngineeringCity University of Hong KongHong KongChina
| | - Yifan Liu
- Dept. of Mechanical EngineeringCity University of Hong KongHong KongChina
| | - Cong Wu
- Dept. of Mechanical EngineeringCity University of Hong KongHong KongChina
- Hong Kong Centre for Cerebro‐cardiovascular Health Engineering (COCHE)Hong KongChina
| | - Meng Chen
- Dept. of Mechanical EngineeringCity University of Hong KongHong KongChina
| | - Qingyun Huang
- Dept. of Mechanical EngineeringCity University of Hong KongHong KongChina
| | - Yiming Liu
- Dept. of Biomedical EngineeringCity University of Hong KongHong KongChina
| | - Kuanming Yao
- Dept. of Biomedical EngineeringCity University of Hong KongHong KongChina
| | - Yangbin Chen
- Dept. of Computer ScienceCity University of Hong KongHong KongChina
| | - Qiqi Pan
- Dept. of Mechanical EngineeringCity University of Hong KongHong KongChina
| | - Xiaoyu Chang
- Dept. of Mechanical EngineeringCity University of Hong KongHong KongChina
| | | | - Ho‐yin Chan
- Dept. of Mechanical EngineeringCity University of Hong KongHong KongChina
| | - Guanglie Zhang
- Dept. of Mechanical EngineeringCity University of Hong KongHong KongChina
| | - Zhengbao Yang
- Dept. of Mechanical EngineeringCity University of Hong KongHong KongChina
| | - Walid Daoud
- Dept. of Mechanical EngineeringCity University of Hong KongHong KongChina
| | - Xinyue Li
- School of Data ScienceCity University of Hong KongHong KongChina
| | | | - Jiangang Shen
- School of Chinese MedicineThe University of Hong KongHong KongChina
| | - Xinge Yu
- Dept. of Biomedical EngineeringCity University of Hong KongHong KongChina
- Hong Kong Centre for Cerebro‐cardiovascular Health Engineering (COCHE)Hong KongChina
| | - Jianping Wang
- Dept. of Computer ScienceCity University of Hong KongHong KongChina
| | - Wen Jung Li
- Dept. of Mechanical EngineeringCity University of Hong KongHong KongChina
- Hong Kong Centre for Cerebro‐cardiovascular Health Engineering (COCHE)Hong KongChina
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Ganesapillai M, Mondal B, Sarkar I, Sinha A, Ray SS, Kwon YN, Nakamura K, Govardhan K. The face behind the Covid-19 mask - A comprehensive review. ENVIRONMENTAL TECHNOLOGY & INNOVATION 2022; 28:102837. [PMID: 35879973 PMCID: PMC9299984 DOI: 10.1016/j.eti.2022.102837] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/16/2022] [Accepted: 07/16/2022] [Indexed: 05/07/2023]
Abstract
The threat of epidemic outbreaks like SARS-CoV-2 is growing owing to the exponential growth of the global population and the continual increase in human mobility. Personal protection against viral infections was enforced using ambient air filters, face masks, and other respiratory protective equipment. Available facemasks feature considerable variation in efficacy, materials usage and characteristic properties. Despite their widespread use and importance, face masks pose major potential threats due to the uncontrolled manufacture and disposal techniques. Improper solid waste management enables viral propagation and increases the volume of associated biomedical waste at an alarming rate. Polymers used in single-use face masks include a spectrum of chemical constituents: plasticisers and flame retardants leading to health-related issues over time. Despite ample research in this field, the efficacy of personal protective equipment and its impact post-disposal is yet to be explored satisfactorily. The following review assimilates information on the different forms of personal protective equipment currently in use. Proper waste management techniques pertaining to such special wastes have also been discussed. The study features a holistic overview of innovations made in face masks and their corresponding impact on human health and environment. Strategies with SDG3 and SDG12, outlining safe and proper disposal of solid waste, have also been discussed. Furthermore, employing the CFD paradigm, a 3D model of a face mask was created based on fluid flow during breathing techniques. Lastly, the review concludes with possible future advancements and promising research avenues in personal protective equipment.
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Affiliation(s)
- Mahesh Ganesapillai
- Mass Transfer Group, School of Chemical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Bidisha Mondal
- Mass Transfer Group, School of Chemical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Ishita Sarkar
- Mass Transfer Group, School of Chemical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Aritro Sinha
- Mass Transfer Group, School of Chemical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Saikat Sinha Ray
- Department of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology, Republic of Korea
| | - Young-Nam Kwon
- Department of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology, Republic of Korea
| | - Kazuho Nakamura
- Faculty of Engineering, Division of Material Science and Chemical Engineering, Yokohama National University, Tokiwadai, Yokohama, Kanagawa 240-8501, Japan
| | - K Govardhan
- Department of Micro and Nano-Electronics, School of Electronics Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, India
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Zakrzewska A, Haghighat Bayan MA, Nakielski P, Petronella F, De Sio L, Pierini F. Nanotechnology Transition Roadmap toward Multifunctional Stimuli-Responsive Face Masks. ACS APPLIED MATERIALS & INTERFACES 2022; 14:46123-46144. [PMID: 36161869 DOI: 10.1021/acsami.2c10335] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
In recent times, the use of personal protective equipment, such as face masks or respirators, is becoming more and more critically important because of common pollution; furthermore, face masks have become a necessary element in the global fight against the COVID-19 pandemic. For this reason, the main mission of scientists has become the development of face masks with exceptional properties that will enhance their performance. The versatility of electrospun polymer nanofibers has determined their suitability as a material for constructing "smart" filter media. This paper provides an overview of the research carried out on nanofibrous filters obtained by electrospinning. The progressive development of the next generation of face masks whose unique properties can be activated in response to a specific external stimulus is highlighted. Thanks to additional components incorporated into the fiber structure, filters can, for example, acquire antibacterial or antiviral properties, self-sterilize the structure, and store the energy generated by users. Despite the discovery of several fascinating possibilities, some of them remain unexplored. Stimuli-responsive filters have the potential to become products of large-scale availability and great importance to society as a whole.
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Affiliation(s)
- Anna Zakrzewska
- Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, ul. Pawińskiego 5B, Warsaw 02-106, Poland
| | - Mohammad Ali Haghighat Bayan
- Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, ul. Pawińskiego 5B, Warsaw 02-106, Poland
| | - Paweł Nakielski
- Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, ul. Pawińskiego 5B, Warsaw 02-106, Poland
| | - Francesca Petronella
- Institute of Crystallography CNR-IC, National Research Council of Italy, Via Salaria Km 29.300, Monterotondo 00015, Rome Italy
| | - Luciano De Sio
- Department of Medico-Surgical Sciences and Biotechnologies, Research Center for Biophotonics, Sapienza University of Rome, Corso della Repubblica 79, Latina 04100, Italy
| | - Filippo Pierini
- Department of Biosystems and Soft Matter, Institute of Fundamental Technological Research, Polish Academy of Sciences, ul. Pawińskiego 5B, Warsaw 02-106, Poland
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Schorderet Weber S, Bulliard X, Bonfante R, Xiang Y, Biselli S, Steiner S, Constant S, Pugin R, Laurent A, Majeed S, Lebrun S, Palmieri M, Hogg A, Kuczaj A, Peitsch MC, Hoeng J, Stan A. In vitro testing of salt coating of fabrics as a potential antiviral agent in reusable face masks. Sci Rep 2022; 12:17041. [PMID: 36220878 PMCID: PMC9552714 DOI: 10.1038/s41598-022-21442-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 09/27/2022] [Indexed: 12/29/2022] Open
Abstract
During the coronavirus disease (COVID-19) pandemic, wearing face masks in public spaces became mandatory in most countries. The risk of self-contamination when handling face masks, which was one of the earliest concerns, can be mitigated by adding antiviral coatings to the masks. In the present study, we evaluated the antiviral effectiveness of sodium chloride deposited on a fabric suitable for the manufacturing of reusable cloth masks using techniques adapted to the home environment. We tested eight coating conditions, involving both spraying and dipping methods and three salt dilutions. Influenza A H3N2 virus particles were incubated directly on the salt-coated materials, collected, and added to human 3D airway epithelial cultures. Live virus replication in the epithelia was quantified over time in collected apical washes. Relative to the non-coated material, salt deposits at or above 4.3 mg/cm2 markedly reduced viral replication. However, even for larger quantities of salt, the effectiveness of the coating remained dependent on the crystal size and distribution, which in turn depended on the coating technique. These findings confirm the suitability of salt coating as antiviral protection on cloth masks, but also emphasize that particular attention should be paid to the coating protocol when developing consumer solutions.
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Affiliation(s)
| | - Xavier Bulliard
- Centre Suisse d'Electronique et de Microtechnique SA (CSEM), Rue Jaquet-Droz 1, 2002, Neuchâtel, Switzerland
| | - Rosy Bonfante
- Epithelix Sàrl, Chemin des Aulx 18, 1228, Plan-les-Ouates, Geneva, Switzerland
| | - Yang Xiang
- PMI R&D, Philip Morris Products S.A., Quai Jeanrenaud 5, 2000, Neuchâtel, Switzerland
| | - Silvia Biselli
- Centre Suisse d'Electronique et de Microtechnique SA (CSEM), Rue Jaquet-Droz 1, 2002, Neuchâtel, Switzerland
| | - Sandro Steiner
- PMI R&D, Philip Morris Products S.A., Quai Jeanrenaud 5, 2000, Neuchâtel, Switzerland
| | - Samuel Constant
- Epithelix Sàrl, Chemin des Aulx 18, 1228, Plan-les-Ouates, Geneva, Switzerland
| | - Raphael Pugin
- Centre Suisse d'Electronique et de Microtechnique SA (CSEM), Rue Jaquet-Droz 1, 2002, Neuchâtel, Switzerland
| | - Alexandra Laurent
- PMI R&D, Philip Morris Products S.A., Quai Jeanrenaud 5, 2000, Neuchâtel, Switzerland
| | - Shoaib Majeed
- PMI R&D, Philip Morris Products S.A., Quai Jeanrenaud 5, 2000, Neuchâtel, Switzerland
| | - Stefan Lebrun
- PMI R&D, Philip Morris Products S.A., Quai Jeanrenaud 5, 2000, Neuchâtel, Switzerland
| | - Michele Palmieri
- Centre Suisse d'Electronique et de Microtechnique SA (CSEM), Rue Jaquet-Droz 1, 2002, Neuchâtel, Switzerland
| | - Andreas Hogg
- Coat-X SA, Eplatures-Grise 17, 2300, La Chaux-de-Fonds, Switzerland
| | - Arkadiusz Kuczaj
- PMI R&D, Philip Morris Products S.A., Quai Jeanrenaud 5, 2000, Neuchâtel, Switzerland
| | - Manuel C Peitsch
- PMI R&D, Philip Morris Products S.A., Quai Jeanrenaud 5, 2000, Neuchâtel, Switzerland
| | - Julia Hoeng
- PMI R&D, Philip Morris Products S.A., Quai Jeanrenaud 5, 2000, Neuchâtel, Switzerland
| | - Adrian Stan
- PMI R&D, Philip Morris Products S.A., Quai Jeanrenaud 5, 2000, Neuchâtel, Switzerland
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Cai PF, Li J, Wu XB, Li ZY, Shen J, Nie JJ, Cui ZD, Chen DF, Liang YQ, Zhu SL, Wu SL. ALD-induced TiO 2/Ag nanofilm for rapid surface photodynamic ion sterilization. RARE METALS 2022; 41:4138-4148. [PMID: 36157375 PMCID: PMC9486779 DOI: 10.1007/s12598-022-02096-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/06/2022] [Accepted: 03/17/2022] [Indexed: 06/16/2023]
Abstract
The daily life of people in the intelligent age is inseparable from electronic device, and a number of bacteria on touch screens are increasingly threatening the health of users. Herein, a photocatalytic TiO2/Ag thin film was synthesized on a glass by atomic layer deposition and subsequent in situ reduction. Ultraviolet-visible (UV-Vis) spectra showed that this film can harvest the simulated solar light more efficiently than that of pristine TiO2. The antibacterial tests in vitro showed that the antibacterial efficiency of the TiO2/Ag film against S. aureus and E. coli was 98.2% and 98.6%, under visible light irradiation for 5 min. The underlying mechanism was that the in-situ reduction of Ag on the surface of TiO2 reduced the bandgap of TiO2 from 3.44 to 2.61 eV due to the formation of Schottky heterojunction at the interface between TiO2 and Ag. Thus, TiO2/Ag can generate more reactive oxygen species for bacterial inactivation on the surface of electronic screens. More importantly, the TiO2/Ag film had great biocompatibility with/without light irradiation. The platform not only provides a more convenient choice for the traditional antibacterial mode but also has limitless possibilities for application in the field of billions of touch screens.
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Affiliation(s)
- Peng-Fei Cai
- School of Materials Science & Engineering, The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072 China
| | - Jun Li
- School of Materials Science & Engineering, The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072 China
| | - Xin-Bao Wu
- Department of Orthopedic Trauma, Beijing Jishuitan Hospital, Beijing, 100035 China
| | - Zhao-Yang Li
- School of Materials Science & Engineering, The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072 China
| | - Jie Shen
- Shenzhen Key Laboratory of Spine Surgery, Department of Spine Surgery, Peking University Shenzhen Hospital, Shenzhen, 518041 China
| | - Jing-Jun Nie
- Laboratory of Bone Tissue Engineering, Beijing Laboratory of Biomedical Materials, Beijing Research Institute of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Beijing, 100035 China
| | - Zhen-Duo Cui
- School of Materials Science & Engineering, The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072 China
| | - Da-Fu Chen
- Laboratory of Bone Tissue Engineering, Beijing Laboratory of Biomedical Materials, Beijing Research Institute of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Beijing, 100035 China
| | - Yan-Qin Liang
- School of Materials Science & Engineering, The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072 China
| | - Sheng-Li Zhu
- School of Materials Science & Engineering, The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072 China
| | - Shui-Lin Wu
- School of Materials Science & Engineering, The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Tianjin, 300072 China
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Shi S, Zhi C, Zhang S, Yang J, Si Y, Jiang Y, Ming Y, Lau KT, Fei B, Hu J. Lotus Leaf-Inspired Breathable Membrane with Structured Microbeads and Nanofibers. ACS APPLIED MATERIALS & INTERFACES 2022; 14:39610-39621. [PMID: 35980757 DOI: 10.1021/acsami.2c11251] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Electrospinning is a feasible technology to fabricate nanomaterials. However, the preparation of nanomaterials with controllable structures of microbeads and fine nanofibers is still a challenge, which hinders widespread applications of electrospun products. Herein, inspired by the micro/nanostructures of lotus leaves, we constructed a structured electrospun membrane with excellent comprehensive properties. First, micro/nanostructures of membranes with adjustable microbeads and nanofibers were fabricated on a large scale and quantitatively analyzed based on the controlling preparation, and their performances were systematically evaluated. The deformation of diverse polymeric solution droplets in the electrospinning process under varying electric fields was then simulated by molecular dynamic simulation. Finally, novel fibrous membranes with structured sublayers and controllable morphologies were designed, prepared, and compared. The achieved structured membranes demonstrate a high water vapor transmission rate (WVTR) > 17.5 kg/(m2 day), a good air permeability (AP) > 5 mL/s, a high water contact angle (WCA) up to 151°, and a high hydrostatic pressure of 623 mbar. The disclosed science and technology in this article can provide a feasible method to not only adjust micro/nanostructure fibers but also to design secondary multilayer structures. This research is believed to assist in promoting the diversified development of advanced fibrous membranes and intelligent protection.
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Affiliation(s)
- Shuo Shi
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong S.A.R 999077, China
| | - Chuanwei Zhi
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong S.A.R 999077, China
| | - Shuai Zhang
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong S.A.R 999077, China
| | - Jieqiong Yang
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong S.A.R 999077, China
| | - Yifan Si
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong S.A.R 999077, China
| | - Yuanzhang Jiang
- College of Biomass Science and Engineering, Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China
| | - Yang Ming
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong S.A.R 999077, China
| | - Kin-Tak Lau
- School of Engineering. Swinburne University of Technology, Melbourne, Victoria 3122, Australia
| | - Bin Fei
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hong Kong S.A.R 999077, China
| | - Jinlian Hu
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong S.A.R 999077, China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, P. R. China
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Sung YJ, Song S, Sim SJ. A Rapid and High-Throughput Assay for Light Scattering of SARS-CoV-2 Virion-Sized Particulates via Microfluidic Spray Device Reveals the Protection Performance of Face Masks against Virus Infection. NANO LETTERS 2022; 22:6744-6752. [PMID: 35930264 DOI: 10.1021/acs.nanolett.2c02278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
To prevent interhuman transmission of viruses, new mask types─claiming improved filtration─require careful performance characterization. Here, a microfluidic spray device that can effectively simulate droplets emitted during coughing or sneezing was developed to spray droplets containing gold nanoparticles (AuNPs) that mimic SARS-CoV-2 to overcome the shortcomings associated with using biosamples. The light scattered by the AuNPs passing through the mask is successfully analyzed by using an automated scattering light mapping system within a duration of 2 min, thereby enabling high-throughput analysis of the filtering efficiency of various types of commercial masks. The differences in efficiency in terms of same mask type from different manufacturers, double masking, and prolonged usage, which are challenging to analyze with conventional testing systems, can also be assessed. AuNP-mediated mask performance evaluation enables the rapid determination of mask efficiency according to particle size and can contribute to the rapid response to counter new emerging infectious biohazards.
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Affiliation(s)
- Young Joon Sung
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Sojin Song
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Sang Jun Sim
- Department of Chemical and Biological Engineering, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
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Liu Q, Lin B, Zhu C, Hu J. Emergency hospitalization caused by non-COVID-19 respiratory diseases before and during the COVID-19 pandemic: A retrospective observational cohort study. Front Med (Lausanne) 2022; 9:929353. [PMID: 35991670 PMCID: PMC9385983 DOI: 10.3389/fmed.2022.929353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 07/14/2022] [Indexed: 11/25/2022] Open
Abstract
Background The coronavirus disease 2019 (COVID-19) pandemic as well as the subsequent prevention and control measures is like a quasi-experiment intervention that might have changed the features of emergency hospitalizations. Mortality is high in patient hospitalization due to emergency respiratory diseases (ERD). Therefore, we compared the characteristics of these patients before and during the pandemic. Exploring this issue might contribute to decision-making of emergency management when most of the resources and attention has been devoted to combat COVID-19. Methods This study was a retrospective observational cohort study. All emergency hospitalizations due to ERD from January 1, 2019 to December 31, 2020 in a tertiary hospital in China were included. Data including patients’ age, sex, and clinical outcomes were extracted. Air quality was collected from the official online platform. Clinical characteristics were compared and odds ratios were calculated. Results The ERD hospitalization rate was lower in 2020 than in 2019 (6.4 vs. 4.3%, χ2 = 55.449, P = 0.000) with a 50.65% reduction; however, the patients were older in 2020 than in 2019 (P = 0.000) with a higher proportion of admission to the intensive care unit (ICU) (46 vs. 33.5%, χ2 = 20.423, P = 0.000) and a longer ICU stay (P = 0.000). The overall intubation rate, hospital mortality, and rate of discharge due to ineffective treatment in 2020 were higher than those in 2019 (15.6 vs. 8%, χ2 = 18.578, P = 0.000; 4.2 vs. 1.1%, χ2 = 4.122, P = 0.000; 5.5 vs. 2.4%, χ2 = 8.93, P = 0.000, respectively). The logistic regression analysis indicated hospitalizations due to ERD were mainly associated with PM2.5 and sulfur dioxide on the day, and on the 4th and 5th days before admission (P = 0.034 and 0.020, 0.021 and 0.000, 0.028, and 0.027, respectively) in 2019. However, in 2020, the relationship between parameters of air quality and hospitalization changed. Conclusion The COVID-19 pandemic has changed the characteristics of emergency hospitalization due to ERD with a larger proportion of severe patients and poorer prognosis. The effect of air quality on emergencies were weakened. During the COVID-19 pandemic, it is necessary to pay more attention to the non-COVID-19 emergency patients.
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Affiliation(s)
- Qi Liu
- Department of Emergency Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Translational Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- *Correspondence: Qi Liu,
| | - Bingcao Lin
- Department of Emergency Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Translational Medicine Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Changju Zhu
- Department of Emergency Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Medical Key Laboratory of Emergency and Trauma Research, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jianping Hu
- Department of Clinical Evaluation, Henan Medical Association, Zhengzhou, China
- Jianping Hu,
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