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Title: Application of an Ultrasonic Nebulizer Closet in the Disinfection of Textiles and Footwear
Authors: Henriques, Tiago M.
Rito, Beatriz
Proença, Diogo N. 
Morais, Paula V. 
Keywords: Gram-negative bacteria; Aerosol; Bacterial spores; Bacteriophage; Disinfection; Footwear; Pathogen transmission control; Textiles; ultrasonic nebulization closet
Issue Date: 23-Aug-2022
Publisher: MDPI
Project: info:eu-repo/grantAgreement/EC/H2020/821096/EU/Development of an innovative sustainable strategy for selective biorecover of critical raw materials from Primary and Secondary sources 
info:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC/CTA-AMB/31820/2017/PT/Microbiological technologies in mining and recycling of high-tech critical metals 
Serial title, monograph or event: International Journal of Environmental Research and Public Health
Volume: 19
Issue: 17
Abstract: The emergence of the coronavirus disease 2019 (COVID-19) pandemic highlighted the importance of disinfection processes in health safety. Textiles and footwear have been identified as vectors for spreading infections. Therefore, their disinfection can be crucial to controlling pathogens' dissemination. The present work aimed to evaluate the effectiveness of a commercial disinfectant aerosolized by an ultrasonic nebulizer closet as an effective method for disinfecting textiles and footwear. The disinfection was evaluated in three steps: suspension tests; nebulization in a 0.08 m3 closet; nebulization in the upscaled 0.58 m3 closet. The disinfection process of textiles and footwear was followed by the use of bacteriophages, bacterial spores, and bacterial cells. The disinfection in the 0.58 m3 closet was efficient for textiles (4 log reduction) when bacteriophage Lambda, Pseudomonas aeruginosa, and Bacillus subtilis were used. The footwear disinfection was achieved (4 log reduction) in the 0.08 m3 closet for Escherichia coli and Staphylococcus aureus. Disinfection in an ultrasonic nebulization closet has advantages such as being quick, not wetting, being efficient on porous surfaces, and is performed at room temperature. Ultrasonic nebulization disinfection in a closet proves to be useful in clothing and footwear stores to prevent pathogen transmission by the items' widespread handling.
ISSN: 1660-4601
DOI: 10.3390/ijerph191710472
Rights: openAccess
Appears in Collections:I&D CEMMPRE - Artigos em Revistas Internacionais
FCTUC Ciências da Vida - Artigos em Revistas Internacionais

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