Resumo

FAHMA, F. et al. Production of cellulose and chitin/chitosan nanofibers-based masks for protecting against coronavirus: A new approach. J. appl. res. technol [online]. 2022, vol.20, n.5, pp.613-629.  Epub 31-Jul-2023. ISSN 2448-6736.  https://doi.org/10.22201/icat.24486736e.2022.20.5.1374.

The coronavirus (SARS-CoV2) is a pathogenic virus that has become a pandemic and a threat in almost all countries worldwide. SARS-CoV2 belongs to the Coronaviridae family, with particle sizes varying around 60 nm - 140 nm. Various regulations and prevention have been designed to reduce the impact of Covid-19 by SARS-CoV2. Several technologies and studies have been developed to form nanofiber woven membranes. Cellulose and chitin/chitosan nanofibers have been studied and are known to have nanometer-sized structures smaller than SARS-CoV2. Chitin/chitosan has been investigated to have antiviral properties, especially coronavirus. Modifying nanocellulose and chitin/chitosan to become more positively charged is a strategy to increase the efficiency of virus nanofiltration. Various active agents (nanosilver, nanogold, CuO, etc.) have been known to have antimicrobial (antiviral, antimicrobial) properties used as nanofillers to enhance the performance and effectiveness of nanofibers based masks against SARS-CoV2.

Palavras-chave : Smart polymers; polymer membranes; polymer composites; nanomaterials; nanocomposites.

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