A hybrid model integrating warm heat and ultraviolet germicidal irradiation might efficiently disinfect respirators and personal protective equipment

Banerjee, Rajib; Roy, Parthajit; Das, Surajeet; Paul, Manash K.

doi:10.1016/j.ajic.2020.07.022

Cited by 22 publications

(31 citation statements)

References 40 publications

(50 reference statements)

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“…Considering the studies in the SLR’s final database, 31 studies [ 1 , 6 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 49 , 50 , 52 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 63 , 64 , 65 , 66 , 85 ], representing 53.45% of the SLR database, attest to UV-C’s germicidal capability, as they find results of at least 3-log reduction using different biological indicators, conditions, and setups. These studies present results using UV-C as a single method of sterilization.…”

Section: Uv-c’s Germicidal Capabilitymentioning

confidence: 99%

“…These studies present results using UV-C as a single method of sterilization. In contrast, another five studies [ 44 , 48 , 51 , 66 , 74 ] use ultraviolet in hybrid models, four combined heat and UV-C, and one adds hydrogen peroxide. While two publications [ 48 , 74 ] do not evaluate UVGI alone, the other two [ 44 , 51 ] do, one attesting for it and another one not.…”

Section: Uv-c’s Germicidal Capabilitymentioning

confidence: 99%

“…While two publications [ 48 , 74 ] do not evaluate UVGI alone, the other two [ 44 , 51 ] do, one attesting for it and another one not. The last one [ 66 ] simulates its efficiency. However, when the authors evaluate the hybrid model, they find reductions “well beyond 3” -log [ 51 ] (p. 13).…”

Section: Uv-c’s Germicidal Capabilitymentioning

confidence: 99%

“…Ultraviolet-C is normally regarded as a low-cost reprocessing method. From the SLR’s final sample, most publications used either adapted biosafety [ 6 , 49 , 50 , 57 , 58 , 59 , 61 , 83 ] or sterilization [ 33 , 56 , 86 ] cabinets; adapted chambers [ 7 , 39 , 43 , 48 , 64 , 66 , 75 , 78 ], rooms [ 51 , 68 , 69 , 85 ] or laminar flow cabinets [ 43 , 71 , 80 , 82 ]; the lamps alone [ 38 , 40 , 46 , 52 , 54 , 63 , 79 , 87 ] or tube racks [ 70 ]. Most of these resources are available in research departments or hospitals; making this method “reasonably (…) inexpensive” [ 7 ] (p. 515) or, at least, “a cost-effective alternative to heat or chemical decontamination” [ 69 ] (pp.…”

Section: Uv-c’s Additional Advantagesmentioning

confidence: 99%

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Ultraviolet-C as a Viable Reprocessing Method for Disposable Masks and Filtering Facepiece Respirators

2021

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In normal conditions, discarding single-use personal protective equipment after use is the rule for its users due to the possibility of being infected, particularly for masks and filtering facepiece respirators. When the demand for these protective tools is not satisfied by the companies supplying them, a scenario of shortages occurs, and new strategies must arise. One possible approach regards the disinfection of these pieces of equipment, but there are multiple methods. Analyzing these methods, Ultraviolet-C (UV-C) becomes an exciting option, given its germicidal capability. This paper aims to describe the state-of-the-art for UV-C sterilization in masks and filtering facepiece respirators. To achieve this goal, we adopted a systematic literature review in multiple databases added to a snowball method to make our sample as robust as possible and encompass a more significant number of studies. We found that UV-C’s germicidal capability is just as good as other sterilization methods. Combining this characteristic with other advantages makes UV-C sterilization desirable compared to other methods, despite its possible disadvantages.

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Section: Uv-c’s Germicidal Capabilitymentioning

confidence: 99%

Section: Uv-c’s Germicidal Capabilitymentioning

confidence: 99%

Section: Uv-c’s Germicidal Capabilitymentioning

confidence: 99%

Section: Uv-c’s Additional Advantagesmentioning

confidence: 99%

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Ultraviolet-C as a Viable Reprocessing Method for Disposable Masks and Filtering Facepiece Respirators

2021

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“… 129 Another study that combined UV and moist heating was conducted by Banerjee et al In this study, the parameters for the most cost-effective and efficient removal of pathogens without damaging the mask were determined. 130 …”

Section: Decontaminationmentioning

confidence: 99%

Advances in Facemasks during the COVID-19 Pandemic Era

Karmacharya

Kumar

Gulenko

et al. 2021

ACS Appl. Bio Mater.

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The outbreak of coronavirus disease (COVID-19) has transformed the daily lifestyles of people worldwide. COVID-19 was characterized as a pandemic owing to its global spread, and technologies based on engineered materials that help to reduce the spread of infections have been reported. Nanotechnology present in materials with enhanced physicochemical properties and versatile chemical functionalization offer numerous ways to combat the disease. Facemasks are a reliable preventive measure, although they are not 100% effective against viral infections. Nonwoven materials, which are the key components of masks, act as barriers to the virus through filtration. However, there is a high chance of cross-infection because the used mask lacks virucidal properties and can become an additional source of infection. The combination of antiviral and filtration properties enhances the durability and reliability of masks, thereby reducing the likelihood of cross-infection. In this review, we focus on masks, from the manufacturing stage to practical applications, and their abilities to combat COVID-19. Herein, we discuss the impacts of masks on the environment, while considering safe industrial production in the future. Furthermore, we discuss available options for future research directions that do not negatively impact the environment.

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Recycled Wastewater from Sewage Treatment Plant for Sustainable Agriculture

Kora

2024

Sewage and Biomass From Wastewater to Energy

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A hybrid model integrating warm heat and ultraviolet germicidal irradiation might efficiently disinfect respirators and personal protective equipment

Abstract: Highlights Coronavirus disease 2019 (COVID-19) has taken a heavy toll on human life. Creating a hybrid model that efficiently sanitizes the mask and increases its reuse. The hybrid system can be used as standalone systems also.

Cited by 22 publications

References 40 publications

Ultraviolet-C as a Viable Reprocessing Method for Disposable Masks and Filtering Facepiece Respirators

Ultraviolet-C as a Viable Reprocessing Method for Disposable Masks and Filtering Facepiece Respirators

Advances in Facemasks during the COVID-19 Pandemic Era

Recycled Wastewater from Sewage Treatment Plant for Sustainable Agriculture

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