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Lan, Jinxin; Xu, Lvlv; Wu, Yao; Chen, Jiazhen; Chen, Hui; Huang, Jinfeng; Yong, Xiaofeng; Lu, Dongdong; Ma, Xiaojuan; Cao, Shilin
International journal of biological macromolecules, 06/2024, Volume: 272, Issue: Pt 2Journal Article
Bacteria and virus infections have posed a great threat to public health and personnel safety. For realizing rapid sterilization of the bacteria and virus, electrical stimulation sterilization was adopted to endow cellulose fibers with instantaneous antibacterial and antiviral properties. In the proposed strategy, the fiber is fluffed by mechanical refining, and then by means of the hydrogen bond between hydroxyl and aniline, the polyaniline (PANI) directionally grows vertically along the fine fibers via in-situ oxidative polymerization. Benefiting from the conductive polyaniline nanorod arrays on the fiber stem, the paper made from PANI modified refined fibers (PANI/BCF/P) exhibited excellent antibacterial and antiviral activity, the inhibition rates against S. aureus, E. coli, and bacteriophage MS2 can up to 100 %, 100 %, and 99.89 %, respectively when a weak voltage (2.5 V) was applied within 20 min. This study provides a feasible path for plant fiber to achieve efficient antibacterial and antiviral activity with electrical stimulation, which is of great significance for the preparation of electroactive antibacterial and antiviral green health products. •Refining makes the fiber to be fluffed.•Nanorod arrays can be realized by in-situ growth of PANI on the fine fibers.•Electrical stimulation sterilization is feasible for cellulosic fibers.
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