Formation of Silver Nanoparticles in PVA-PEG Hydrogel under Electron Irradiation

  • V. B. Neimash Institute of Physics, Nat. Acad. of Sci. of Ukraine
  • H. D. Kupianskyi Institute of Physics, Nat. Acad. of Sci. of Ukraine
  • I. V. Olkhovyk Institute of Physics, Nat. Acad. of Sci. of Ukraine
  • V. I. Styopkin Institute of Physics, Nat. Acad. of Sci. of Ukraine
  • P. M. Lytvynchuk Institute of Physics, Nat. Acad. of Sci. of Ukraine
  • V. Yu. Povarchuk Institute of Physics, Nat. Acad. of Sci. of Ukraine
  • I. S. Roguts’kyi Institute of Physics, Nat. Acad. of Sci. of Ukraine
  • Yu. A. Furmanov State Scientific Institution “Center for Innovative Medical Technologies”, Nat. Acad. of Sci. of Ukraine
  • S. M. Titarenko O.O. Shalimov National Institute of Surgery and Transplantology, Academy of Medical Sciences of Ukraine
Keywords: silver nanoparticles, hydrogel, electron irradiation, antiseptic

Abstract

The formation of silver nanoparticles in a hydrogel on the basis of polyvinyl alcohol and polyethylene glycol at its crosslinking under the electron irradiation has been studied using the optical spectroscopy and scanning electron microscopy methods. The growth of nanoparticles 40–70 nm in size and their clustering into aggregates about a few hundred nanometers in diameter are demonstrated. The total concentration of nanoparticles and their size correlate with the concentration of ionic silver in the initial solution and the electron irradiation dose. The formation of nanoparticles is interpreted as a result of the radiation-induced chemical reduction of silver in the solution that is spatially confined in the cells of a 3D microstructure in the crosslinked hydrogel. The radiation-crosslinked hydrogel demonstrates an antiseptic effect for 7 of 8 tested microorganisms at silver concentrations of 0.001–0.003 wt.%, which is at least an order of magnitude lower than effective concentrations of ionic and colloidal silvers.

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Published
2019-01-30
How to Cite
Neimash, V., Kupianskyi, H., Olkhovyk, I., Styopkin, V., Lytvynchuk, P., Povarchuk, V., Roguts’kyi, I., Furmanov, Y., & Titarenko, S. (2019). Formation of Silver Nanoparticles in PVA-PEG Hydrogel under Electron Irradiation. Ukrainian Journal of Physics, 64(1), 41. https://doi.org/10.15407/ujpe64.1.41
Section
Physics of liquids and liquid systems, biophysics and medical physics