Head of Laboratory

Selezneva, Irina Ivanovna

PhD in Physics and Mathematics
Publications
59
Citations
1 090
h-index
18
Authorization required.
Lab team

The main areas of activity of the team are the development and study of new nano- and biomaterials promising for biomedical purposes

The research is based on a combination of the principles of meterialology, bioengineering, cellular and molecular biology. An integral part is applied research, which already has proven effectiveness, and the results of research in the form of a product have been released to the market (the wound healing drug Panacerium).

  1. Various methods for the production of biomaterials/biocomposites, supramolecular complexes and sols of nanoparticles.
  2. Working with laboratory animals
  3. Cell and tissue culture
  4. Real-time PCR (qPCR)
  5. Western blot
  6. Scanning electron microscopy (SEM)
  7. Fluorescence microscopy
Irina Selezneva
Head of Laboratory
Sergey Tikhonenko
Leading researcher
Galina Davydova
Senior Researcher
Egor Musin
Researcher

Research directions

Development of wound healing drugs based on biologically active nanocomposites

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Development of wound healing drugs based on biologically active nanocomposites
Development site panacerium.com

Investigation of the biological activity of nanomaterials on a flatworm model

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Investigation of the biological activity of nanomaterials on a flatworm model
The mitogenic effect of cerium (IV) oxide and cerium (III) fluoride nanoparticles on the regeneration of the whole organism - freshwater flatworms Schmidtea mediterranea (planarium). Both types of cerium-containing nanoparticles are very powerful mitogens for planarians. CeO2 and CeF3 in micro- and nanomolar concentrations significantly accelerate the growth of planar blastema by increasing cell proliferation, causing an increase in the mitotic index and the number of blastema cells in regenerating planaria. CeO2 provides maximum activity at concentrations that are two orders of magnitude lower than those of CeF3. The valence state of cerium in cerium-containing nanoparticles plays a significant role in the mechanism of planarian regeneration: CeO2 nanoparticles, containing mainly Ce4+ particles, presumably absorb reactive oxygen species from the wound and moderately activate gene expression processes, whereas the regenerative effect of CeF3 nanoparticles containing only Ce3+ species is manifested in the pronounced expression of genes involved in division, differentiation and cell migration.

The development of effective systems for molecular diagnostics and targeted drug delivery is one of the promising solutions in the treatment of socially significant diseases

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The development of effective systems for molecular diagnostics and targeted drug delivery is one of the promising solutions in the treatment of socially significant diseases
In this work, we have shown the possibility of effective encapsulation of luciferase in biodegradable polyelectrolyte microcapsules modified with therapeutically active cerium dioxide nanoparticles. It has been shown that the modification of microcapsules with citrate-stabilized cerium dioxide nanoparticles ensures the preservation of high activity of the encapsulated protein when exposed to a damaging agent - hydrogen peroxide. This structure of the microcapsule makes it possible to ensure the safety of the encapsulated substance in aggressive environmental conditions, as well as to ensure its prolonged release from it. The use of redox-active nanoparticles in the structure of microcapsules will allow the creation of new diagnostic and therapeutic drugs for the effective treatment and diagnosis of a wide range of socially significant diseases.

Publications and patents

В.К. Иванов, А.Е. Баранчиков, А.Л. Попов, Т.О. Шекунова, Х.Э. Ёров, А.Д. Япрынцев, П.Г. Рудаковская, О.М. Гайтко, О.С. Иванова
RU2688755C2, 2019
Гаврилюк В.Б., Хохлов Н.В., Попов А. Л., Титаева А. А., Куликов А. В., Андрюхина В. В.
RU2699362C2, 2019

Lab address

ИТЭБ РАН, Корпус Клетки
Authorization required.