Silver-based, single-sided antibacterial cotton fabrics with improved durability via an l-cysteine binding effect
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The main purpose of this work was to obtain durable antimicrobial cotton textiles functionalized with l-cysteine (Cys) and silver nanoparticles (Ag NPs). Cys molecules were covalently linked to cotton fibers via esterification with the cellulose hydroxyl groups, and the Ag NPs tightly adhered to the fiber surface via coordination bonds with the Cys thiol groups. As a result, the Ag NPs coating on the cotton fabric showed an excellent antibacterial function with an outstanding laundering durability. Even after 90 consecutive laundering tests, the modified cotton fabrics still showed satisfactory bacterial reduction rates against both Staphylococcus aureus and Escherichia coli, and the rates were are all higher than 94%. These findings will allow for broader applications of antimicrobial cotton textiles with a decreased safety risk and lower environmental impact due to the Ag NPs.
KeywordsCotton fabric Surface modification l-cysteine Antimicrobial durability
This work was financially supported by Public Welfare Technology Application Research Project of Zhejiang Province (2017C31035) and the Natural Science Foundation of China (51573167).
- Fan WC, Zhu YH, Xi GH, Huang MQ, Liu XD (2016) Wear-resistant cotton fabrics modified by PU coatings prepared via mist polymerization. J Appl Polym Sci 133:43024Google Scholar
- Liu Y, Ren X, Liang J (2015) Antibacterial modification of cellulosic materials. BioResources 10:1964–1985Google Scholar
- Luo GY, Xi GH, Wang XY, Qin DD, Zhang YY, Fu FY, Liu XD (2017) Antibacterial N-halamine coating on cotton fabric fabricated using mist polymerization. J Appl Polym Sci 134:44897Google Scholar