Pharmaceutics (Mar 2022)

Development of Submicrocapsules Based on Co-Assembled Like-Charged Silica Nanoparticles and Detonation Nanodiamonds and Polyelectrolyte Layers

  • Konstantin V. Palamarchuk,
  • Tatiana N. Borodina,
  • Anastasia V. Kostenko,
  • Yury M. Chesnokov,
  • Roman A. Kamyshinsky,
  • Natalya P. Palamarchuk,
  • Elena B. Yudina,
  • Elena D. Nikolskaya,
  • Nikita G. Yabbarov,
  • Mariia R. Mollaeva,
  • Tatiana V. Bukreeva

DOI
https://doi.org/10.3390/pharmaceutics14030575
Journal volume & issue
Vol. 14, no. 3
p. 575

Abstract

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Capsules with shells based on nanoparticles of different nature co-assembled at the interface of liquid phases of emulsion are promising carriers of lipophilic drugs. To obtain such capsules, theoretically using the Derjaguin–Landau–Verwey–Overbeek (DLVO) theory and experimentally using dynamic light-scattering (DLS) and transmission electron microscopy (TEM) methods, the interaction of like-charged silica nanoparticles and detonation nanodiamonds in an aqueous solution was studied and their ratios selected for the formation of submicron-sized colloidosomes. The resulting colloidosomes were modified with additional layers of nanoparticles and polyelectrolytes, applying LbL technology. As a model anti-cancer drug, thymoquinone was loaded into the developed capsules, demonstrating a significant delay of the release as a result of colloidosome surface modification. Fluorescence flow cytometry and confocal laser scanning microscopy showed efficient internalization of the capsules by MCF7 cancer cells. The obtained results demonstrated a high potential for nanomedicine application in the field of the drug-delivery system development.

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