Development and Characterization of Antimicrobial Textiles from Chitosan-Based Compounds: Possible Biomaterials Against SARS-CoV-2 Viruses

FAVATELA, MARÍA FLORENCIA; OTAROLA, JESSICA; AYALA-PEÑA, VICTORIA BELEN; DOLCINI, GUILLERMINA; PEREZ, SANDRA; TORRES NICOLINI, ANDRÉS; ALVAREZ, VERA ALEJANDRA; LASSALLE, VERÓNICA LETICIA

JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS

SPRINGER

Lugar: Berlin; Año: 2022

1574-1443

Novel antiviral textiles impregnated with different formulations based on chitosan (CH), citric acid (AC CA), and copper (Cu) were developed. CA was selected as CH cross-linker agent and Cu salts as enhancers of the polymer antiviral activity. The characterization of the obtained materials was assessed by using atomic absorption spectroscopy, X-ray diffraction, Fourier transform infrared spectroscopy and UV?Vis spectroscopy, and also by thermo-gravimetric measurements (TGA). The antiviral activities of CH and prepared its formulations against bovine coronavirus (BoHV-1BCoV) were analyzed. Textile fibers of varied composition were impregnated with the selected formulations and the antiviral properties of such textiles were examined before and after washing 5 to 10 washing cycles. Herpes simplex virus type 1 (HSV-1) was selected to analyze the antiviral activities of the functionalized textiles. The resulting impregnated textiles exhibit integrated properties of good adhesion without substantially modifying the textile appearance and virucidal (~100%) efficacy, which enabled to serve as a scalable biocidal layer for protective equipment by providing contact killing against pathogens either in aerosol or in liquid forms.