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Publish Date : 2016-12-31
Journal of Analytical, Bioanalytical and Separation Techniques

Bactericidal cotton fabrics modified by silver and copper nanoparticles: optical spectra, structures, electrical resistance

Anna Eremenko
Anna Eremenko
Article information 

Affiliation

  • 1Chuiko Institute of Surface Chemistry of NAS of Ukraine, 17 General Naumov str, Kyiv 03164, Ukraine
  • 2Marzeev Institutes of Hygiene and Medical Ecology of NAMS of Ukraine, 50 Popudrenko str, Kyiv 02660, Ukraine
  • 3Taras Shevchenko National University, 60 Volodymyrska str, Kyiv 01001, Ukraine

Corresponding Author

Аnna Eremenko, Chuiko Institute of Surface Chemistry of NAS of Ukraine, 17 General Naumov str, Kyiv 03164,Ukraine, Tel: 8 044 4429698; E-mail: annerem@ukr.net

Citation

Eremenko.A., et al. Bactericidal cotton fabrics modified by silver and copper nanoparticles: optical spectra, structures, electrical resistance. (2016) J Anal Bioanal Sep Tech 1(1): 42- 46.

Copy rights

© 2016 Eremenko.A. This is an Open access article distributed under the terms of Creative Commons Attribution 4.0 International License.

Keywords

Abstract

 

  The bactericidal activity, optical spectra, electron-microscopic images and electrical resistance of cotton textile modified with bimetallic silver/copper nanoparticles (Ag/CuNPs) against the series of the microorganisms (Escherichia coli, Staphylococcus aurous, and Pseudomonas aeruginosa) are studied. NPs’ modified fabrics were produced by the developed by us method of soft heat treatment of tissue impregnated with silver and copper ions and characterized by the Diffusion-Reflectance Spectra (DRS), SEM, electrical resistance and the flame atomic absorption spectroscopy (FAAS) methods. Glucosidal residues of cotton participate in the reduction of silver ions to NPs, besides that fabrics contain Ag/Cu2O (marked as Ag/Cu NPs) nanosized compositions with the size of 20 - 60 nm. The FAAS method has been used to determine the quantitative Cu:Ag ratio within the Ag/CuNPs/tissue structures. Dried bactericidal fabric does not have electrical conductivity indicating the absence of contact between particles, fixed in the tissue structure. The electrical resistance of fabrics decreases sharply upon wetting in the water or electrolyte solution. The increasing of the conductivity of the modified fabrics suggests the diffusion of corresponding metal ions from the surface of NPs in the tissue which may contribute to the direct interaction of bactericide agents with microbes in biological fluids. Obtained composites demonstrated excellent antimicrobial activity.