Highly stable, antiviral, antibacterial cotton textiles via molecular engineering.

Autor: Qian J; Department of Materials Science and Engineering, University of Maryland, College Park, MD, USA., Dong Q; Department of Materials Science and Engineering, University of Maryland, College Park, MD, USA., Chun K; Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA.; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA.; Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, USA., Zhu D; Department of Materials Science and Engineering, University of Maryland, College Park, MD, USA., Zhang X; Department of Materials Science and Engineering, University of Maryland, College Park, MD, USA., Mao Y; Department of Materials Science and Engineering, University of Maryland, College Park, MD, USA.; NIST Center for Neutron Research, National Institute of Standards and Technology (NIST), Gaithersburg, MD, USA., Culver JN; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA.; Department of Plant Science and Landscape Architecture, University of Maryland, College Park, MD, USA., Tai S; Maryland Institute for Applied Environmental Health, University of Maryland, College Park, MD, USA., German JR; Maryland Institute for Applied Environmental Health, University of Maryland, College Park, MD, USA., Dean DP; Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN, USA., Miller JT; Davidson School of Chemical Engineering, Purdue University, West Lafayette, IN, USA., Wang L; X-ray Science Division, Argonne National Laboratory, Lemont, IL, USA., Wu T; X-ray Science Division, Argonne National Laboratory, Lemont, IL, USA., Li T; Department of Materials Science and Engineering, University of Maryland, College Park, MD, USA., Brozena AH; Department of Materials Science and Engineering, University of Maryland, College Park, MD, USA., Briber RM; Department of Materials Science and Engineering, University of Maryland, College Park, MD, USA., Milton DK; Department of Plant Science and Landscape Architecture, University of Maryland, College Park, MD, USA., Bentley WE; Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA. bentley@umd.edu.; Institute for Bioscience and Biotechnology Research, University of Maryland, College Park, MD, USA. bentley@umd.edu.; Robert E. Fischell Institute for Biomedical Devices, University of Maryland, College Park, MD, USA. bentley@umd.edu., Hu L; Department of Materials Science and Engineering, University of Maryland, College Park, MD, USA. binghu@umd.edu.; Center for Materials Innovation, University of Maryland, College Park, MD, USA. binghu@umd.edu.
Jazyk: angličtina
Zdroj: Nature nanotechnology [Nat Nanotechnol] 2023 Feb; Vol. 18 (2), pp. 168-176. Date of Electronic Publication: 2022 Dec 30.
DOI: 10.1038/s41565-022-01278-y
Abstrakt: Cotton textiles are ubiquitous in daily life and are also one of the primary mediums for transmitting viruses and bacteria. Conventional approaches to fabricating antiviral and antibacterial textiles generally load functional additives onto the surface of the fabric and/or their microfibres. However, such modifications are susceptible to deterioration after long-term use due to leaching of the additives. Here we show a different method to impregnate copper ions into the cellulose matrix to form a copper ion-textile (Cu-IT), in which the copper ions strongly coordinate with the oxygen-containing polar functional groups (for example, hydroxyl) of the cellulose chains. The Cu-IT displays high antiviral and antibacterial performance against tobacco mosaic virus and influenza A virus, and Escherichia coli, Salmonella typhimurium, Pseudomonas aeruginosa and Bacillus subtilis bacteria due to the antimicrobial properties of copper. Furthermore, the strong coordination bonding of copper ions with the hydroxyl functionalities endows the Cu-IT with excellent air/water retainability and superior mechanical stability, which can meet daily use and resist repeated washing. This method to fabricate Cu-IT is cost-effective, ecofriendly and highly scalable, and this textile appears very promising for use in household products, public facilities and medical settings.
(© 2022. The Author(s), under exclusive licence to Springer Nature Limited.)
Databáze: MEDLINE
Externí odkaz: