A simple method to improve antibacterial properties in commercial face masks via incorporation of ZnO and CuO nanoparticles through chitosan matrix

Bolaina-Lorenzo, Ena; Puente-Urbina, Bertha; Espinosa-Neira, Roberto; Ledezma, Antonio; Rodríguez‐Fernández, Oliverio; Betancourt‐Galindo, Rebeca

doi:10.1016/j.matchemphys.2022.126299

Cited by 13 publications

(10 citation statements)

References 26 publications

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“…Therefore, presence of C and H elements represents the constituent of the filter material [56]. Elements such as Cu, Ca, Na have also been observed in the pristine spectrum, which shows antibacterial and antiviral properties to polypropylene [57], [58]. Identification of C, H and O has also been observed in the FTIR pristine spectrum of surgical mask.…”

Section: Surgical Maskmentioning

confidence: 86%

“…Figure 7a illustrates the elemental peaks obtained for pristine KN95 Respirator/filter. Emission lines from Na at 604.80 nm, Cu at 644.66 nm, O at 701.00 nm and 727.75 nm, H at 672.13 nm, and C at 696.94 nm, 713.1 nm and 772.12 nm, shows the elemental constituent of the respirator [56], [57], [58]. Figure 7b shows the LIBS spectrum of the air-exposed KN95 respirator.…”

Section: Kn95 Respiratormentioning

confidence: 99%

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Irradiation of Ionic Wind extracted from Dielectric Barrier Discharge Plasma to abate Aerosols trapped in Surgical Mask and KN95 Respirator

Arshad

Rafique

Bashir

et al. 2023

Preprint

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Lahore (Pakistan), being an industrial city, has high emission of aerosols that affects and contaminates the air quality. Aerosols cause serious diseases in living organisms, upon inhalation. Therefore, the abatement of aerosols is necessary to restrict their infectious activities. In this project, ionic wind isolated from dielectric barrier discharge plasma (DBD plasma) has been utilized to abate the aerosols trapped in Surgical Mask and KN95 Respirator. In order to trap the aerosols, surgical mask and KN95 respirator were exposed to ambient atmosphere in the industrialized area of Lahore (Pakistan). Trapping of airborne particulates is evidenced by optical microscope. Air-exposed samples were then irradiated to the ionic wind extracted from DBD plasma. DBD plasma setup consists of two electrodes separated by a dielectric material and powered by a high-voltage AC supply (30kV). A negatively biased (15kV) third electrode placed atop DBD setup is used to isolate the ions. The DBD plasma was operated at 12 and 20 kV AC emitting ions of 50 and 200 keV, respectively. To infer the chemical composition of ambient aerosols collected in the surgical Mask and KN95 Respirator before and after the exposure of ions, FTIR has been employed. Laser-induced breakdown spectroscopy technique has been used to extract the elemental detection, before and after the treatment of aerosols. There is significant reduction of the functional groups in the ionic wind irradiated samples as compared to those of air-exposed. Compositional analyses show that there exists a less concentration of elements after irradiation of ionic wind while in air-exposed samples, toxic elements have a large proportion. It appears from the result that irradiation of ionic wind has played a significant effect on the abatement of aerosols. Therefore, the DBD device can effectively abate/inactivate/eradicate the aerosols from the ambient environment.

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Section: Surgical Maskmentioning

confidence: 86%

Section: Kn95 Respiratormentioning

confidence: 99%

Irradiation of Ionic Wind extracted from Dielectric Barrier Discharge Plasma to abate Aerosols trapped in Surgical Mask and KN95 Respirator

Arshad

Rafique

Bashir

et al. 2023

Preprint

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“…92–94 CS nanocomposites with ZnO or CuO nanoparticles was used as a coating layer on commercial face mask nonwoven to provide a barrier against the pathogen. 95 CS@Ag/plant fibre membranes fabricated through suction filtration and subsequent drying exhibited suitable properties for the filter layer of face masks including high inhibition of pathogens (tested against E. coli and S. aureus ) and preeminent heat dissipation providing thermal comfort to the wearer. 96…”

Section: Production Of Sustainable Face Mask Nonwovensmentioning

confidence: 99%

Recent advances and future perspectives in engineering biodegradable face masks

et al. 2023

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“…Cu 2 O had strong antibacterial ability, and its antibacterial effect was closely related to size and concentration [41,42], 1 µg/mL Cu 2 O produced strong antibacterial ability with respect to S. aureus. A large number of scholars have also reported the excellent antibacterial effect of CuO [43][44][45][46] against S.aureus, E. coli, pseudomonas aeruginosa, and more than a dozen other strains. Cu 2 O and CuO also exerted antibacterial activities by means of contact.…”

Section: Antibacterial Propertiesmentioning

confidence: 99%

Enhancing the Antibacterial Properties and Biocompatibility of Ti-Cu Alloy by Roughening and Anodic Oxidation

Xie

Mao

et al. 2022

Metals

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Although Ti-Cu alloys have been shown to possess good antibacterial properties, they are still biologically inert. In this study, sandblasting and acid etching combined with anodic oxidation were applied to roughen the surface as well as to form a TiO2/CuO/Cu2O composite film, which would benefit both the antibacterial properties and the biocompatibility. The surface morphology, the phase composition, and the physicochemical properties were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Electrochemical testing and inductively coupled plasma spectrometry (ICP) were used to determine the corrosion resistance and Cu ion release, the plate counting method was used to evaluate the antibacterial performance, and the CCK-8 method was used to evaluate the cytocompatibility. It was revealed that a rough surface with densely porous double layer composed of TiO2/CuO/Cu2O was produced on Ti-Cu alloy surface after the combined surface modification, which enhanced the corrosion resistance significantly. The plate counting results demonstrated that the modified sample had strong long-term antibacterial performance (antibacterial rate > 99%), which was attributed to the formation of TiO2/CuO/Cu2O composite film. The cell compatibility evaluation results indicated that the surface modification improved the cytocompatibility. It was demonstrated that the combined modification provided very strong antibacterial ability and good cytocompatiblity, potentially making it a good candidate surface modification technique for Ti-Cu alloy for biomedical applications.

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A simple method to improve antibacterial properties in commercial face masks via incorporation of ZnO and CuO nanoparticles through chitosan matrix

Cited by 13 publications

References 26 publications

Irradiation of Ionic Wind extracted from Dielectric Barrier Discharge Plasma to abate Aerosols trapped in Surgical Mask and KN95 Respirator

Irradiation of Ionic Wind extracted from Dielectric Barrier Discharge Plasma to abate Aerosols trapped in Surgical Mask and KN95 Respirator

Recent advances and future perspectives in engineering biodegradable face masks

Enhancing the Antibacterial Properties and Biocompatibility of Ti-Cu Alloy by Roughening and Anodic Oxidation

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