Bumpy structured nanofibrous membrane as a highly efficient air filter with antibacterial and antiviral property

Ju, Yanyun; Han, Ting; Yin, Jiajun; Li, Qianqian; Chen, Zhuo; Wei, Zhanyong; Zhang, Yang; Dong, Lijie

doi:10.1016/j.scitotenv.2021.145768

Cited by 70 publications

(34 citation statements)

References 46 publications

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“…Studies have shown that several ways of transmission for SARS-CoV-2 include droplet transmission, body fluid transmission, aerosol transmission, and contact with contaminated surfaces [4,5]. In addition, microorganisms such as bacteria and viruses in the air can attach to particulates, which gradually enter the human organs through the respiratory system, leading to cardiovascular and respiratory diseases [6,7]. Accordingly, in addition to using diagnostic tools to screen infected people and isolate them to prevent further spread of the virus, people are encouraged to wear suitable protective equipment, such as an N95 face mask, which has proved to be the most effective infection control approach [8].…”

Section: Introductionmentioning

confidence: 99%

Bicomponent PLA Nanofiber Nonwovens as Highly Efficient Filtration Media for Particulate Pollutants and Pathogens

et al. 2021

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Herein, a novel form of bicomponent nanofiber membrane containing stereo-complex polylactic acid (SC-PLA) was successfully produced by the side-by-side electrospinning of Poly (L-lactic acid) (PLLA) and Poly (D-lactic acid) (PDLA). We demonstrate that through these environmentally sustainable materials, highly efficient nanofiber assemblies for filtration can be constructed at very low basis weight. The physical and morphological structure, crystalline structure, hydrophobicity, porous structure, and filtration performance of the fibrous membranes were thoroughly characterized. It was shown that the fabricated polylactic acid (PLA) side-by-side fiber membrane had the advantages of excellent hydrophobicity, small average pore size, high porosity, high filtration efficiency, low pressure drop as well as superior air permeability. At the very low basis weight of 1.1 g/m2, the filtration efficiency and pressure drop of the prepared side-by-side membrane reached 96.2% and 30 Pa, respectively. Overall, this biomass-based, biodegradable filtration material has the potential to replace the fossil fuel-based polypropylene commercial meltblown materials for the design and development in filtration, separation, biomedical, personal protection and other fields.

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Section: Introductionmentioning

confidence: 99%

Bicomponent PLA Nanofiber Nonwovens as Highly Efficient Filtration Media for Particulate Pollutants and Pathogens

et al. 2021

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“…Ag nanoparticles were loaded on PA6/PP membrane by immersion method. Their results demonstrate this membrane exhibits high PM2.5 filtration efficiency of 99.99% and low pressure drop of 31 Pa; simultaneous removal of multiple aerosol pollutants, e.g., SO x , NO x , methylbenzene, L-Nicotine; superior antibacterial performance against Escherichia coli (Gram negative bacteria) and Staphylococcus aureus (Gram positive bacteria), antiviral property against Porcine Delta coronavirus and not significant cytotoxicity [ 119 ].…”

Section: Tissue Engineeringmentioning

confidence: 99%

“… Schematics showing PA6@Ag ENM as an air filter membrane with antibacterial and antiviral property [ 119 ]. …”

Section: Tissue Engineeringmentioning

confidence: 99%

Biomedical Applications of Nanofibers

Habibi

Talebian

2021

Russ J Appl Chem

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The idea of creating replacement for damaged or diseased tissue, which will mimic the physiological conditions and simultaneously promote regeneration by patients’ own cells, has been a major challenge in the biomedicine for more than a decade. Therefore, nanofibers are a promising solution to address these challenges. Nanofiber technology is an exciting area attracting the attention of many researchers as a potential solution to these current challenges in the biomedical field such as burn and wound care, organ repair, and treatment for osteoporosis and various diseases. Nanofibers mimic the porous topography of natural extracellular matrix (ECM), hence they are advantageous for tissue regeneration . In biomedical engineering, electrospinning exhibits advantages as a tissue engineering scaffolds producer, which can make appropriate resemblance in physical structure with ECM. This is because of the nanometer scale of ECM fibrils in diameter, which can be mimicked by electrospinning procedure as well as its porous structure. In this review, the applications of nanofibers in various biomedical areas such as tissue engineering, wound dressing and facemask, are summarized. It provides opportunities to develop new materials and techniques that improve the ability for developing quick, sensitive and reliable analytical techniques.

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“…The results show that the gradual release of Ag ions from the membrane was effective in deactivating viruses and enhancing a long-lasting antiviral property. Ju et al [ 61 ] synthesized a nanofibrous air filter membrane for high-efficient particulate matter (PM) removal and antiviral and antibacterial properties. The membrane was fabricated by anchoring AgNMs to the polyamide through hydrogen bonding.…”

Section: Antiviral Nanomaterialsmentioning

confidence: 99%

Antiviral Nanomaterials for Designing Mixed Matrix Membranes

et al. 2021

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Membranes are helpful tools to prevent airborne and waterborne pathogenic microorganisms, including viruses and bacteria. A membrane filter can physically separate pathogens from air or water. Moreover, incorporating antiviral and antibacterial nanoparticles into the matrix of membrane filters can render composite structures capable of killing pathogenic viruses and bacteria. Such membranes incorporated with antiviral and antibacterial nanoparticles have a great potential for being applied in various application scenarios. Therefore, in this perspective article, we attempt to explore the fundamental mechanisms and recent progress of designing antiviral membrane filters, challenges to be addressed, and outlook.

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Bumpy structured nanofibrous membrane as a highly efficient air filter with antibacterial and antiviral property

Cited by 70 publications

References 46 publications

Bicomponent PLA Nanofiber Nonwovens as Highly Efficient Filtration Media for Particulate Pollutants and Pathogens

Bicomponent PLA Nanofiber Nonwovens as Highly Efficient Filtration Media for Particulate Pollutants and Pathogens

Biomedical Applications of Nanofibers

Antiviral Nanomaterials for Designing Mixed Matrix Membranes

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