Bactericidal Properties of Natural Fibers Hybrid Functionalized with ZnO/Cu2+ and ZnO/Cu0 


Vol. 24,  No. 3, pp. 959-974, Mar.  2023
10.1007/s12221-023-00030-0


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  Abstract

Multifunctional natural fi bers with antimicrobial properties have been applied as a viable strategy to prevent microorganism contamination and proliferation on the surface of clothes and personal protection equipment marketed and used by health professionals, patients, and the general population. They present intrinsic antimicrobial capacity, providing eff ective protection preventing the transmission and contagion of diseases caused by pathogenic microorganisms. Herein, we successfully functionalized cotton fi bers with ZnO/Cu 2+ and ZnO/Cu 0 hybrid systems via a hydrothermal routine. Rietveld refi nement from X-ray Diff ractometry (XRD) data and Fourier-Transform Raman Spectroscopy (FT-Raman) indicate alterations on the cellulose crystallinity index in the cotton fi bers after functionalization, mainly on the proportion of cellulose I 棺 polymorph crystal. Scanning Electron Microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) indicate adequate ZnO nanoparticles fi xation and in-situ reduction of copper ions. Antimicrobial tests confi rm that the multifunctional fi bers present bactericidal activity against Gram-negative and Gram-positive bacteria under electromagnetic irradiation (440480 nm). Self-disinfection capability and UV blocking properties of wipes with fi bers after ZnO/Cu 2+ and ZnO/Cu 0 functionalization were improved.

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  Cite this article

[IEEE Style]

D. J. d. Silva, A. G. Souza, P. H. Camani, D. S. Rosa, "Bactericidal Properties of Natural Fibers Hybrid Functionalized with ZnO/Cu2+ and ZnO/Cu0," Fibers and Polymers, vol. 24, no. 3, pp. 959-974, 2023. DOI: 10.1007/s12221-023-00030-0.

[ACM Style]

Daniel J. da Silva, Alana G. Souza, Paulo H. Camani, and Derval S. Rosa. 2023. Bactericidal Properties of Natural Fibers Hybrid Functionalized with ZnO/Cu2+ and ZnO/Cu0. Fibers and Polymers, 24, 3, (2023), 959-974. DOI: 10.1007/s12221-023-00030-0.

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