The main results obtained during last years:

SWNT:DNA (or RNA) nanobiohybrids: structural, spectral and energy characteristics
It was shown that the adsorption of single-stranded RNA on the single-walled carbon nanotube (SWNT) and the following hybridization with a complementary strand to form a duplex is not complete because of the strong binding of polymers with the nanotube surface; ChemPhysPhysChem, (2008) 9, 2872, Nanoscale Research Lett. (2014) 9, 157, J. Phys. Chem. C, (2015) 119, 11991
It was found that the adsorption of the unordered, flexible polynucleotide onto the carbon nanotube is less effective than the ordered polynucleotides; J. Phys. Chem. B, (2013) 117, 2636
First observation of the effect hypochromism of carbon nanotubes (decreasing the intensity of the light absorption in the UV region), which is caused by dipole-dipole interaction in the excited states between the π-π systems of nanotubes and nucleobases of polynucleotides or DNA adsorbed to the nanotube surface; Carbon (2010) 48, 3682
A raw of short polynucleotides with decreasing of their energy interaction with carbon nanotube (d(T)25>d(C)25>d(A)25≈d(G)25) is build and showed that the hydroxyl group in the ribose of the polyribonucleotide reduces both its rate of adsorption on the nanotube and the interaction energy between them; J. Phys. Chem. B (2011) 115, 9271
The formation of the nanoassembly in aqueous suspension formed by carbon nanotubes with adsorbed anionic polymers (RNA) which is induced by i) cationic porphyrin or ii) the biopolymer hybridization was firstly observed; J. Mat. Chem. (2012) 22 10795, Mol.Cryst. Liq.Cryst. (2008) 497, 339, Fullerenes, Nanotubes, and Carbon Nanostructures, (2010) 18531)
The possibility of individual SWNTs alignment in polystyrene or in gelatin stretched films was shown; the control of the nanotube alignment was carried out by polarized resonance Raman and absorption spectroscopy. Adv. Funct. Mater. (2012), 22, 2177; Physica E 93 (2017) 92.

Binding of polynucleotides to graphene oxide (GO)
The interaction between polynucleotide (poly(rC)) and graphene oxide (GO) is studied. Spectral shifts of the electronic and vibrational bands of the poly(rC) and changes of their thermostability due to the adsorption on GO are observed. Molecular dynamics simulation of the adsorption process of the r(C)10 and r(C)30 oligomers on graphene demonstrates their disordering due to the π-π stacking of cytosines on graphene. When cytosine is adsorbed to graphene oxide, their complex is additionally stabilized by H-bonding. The obtained information about the adsorption of DNA/RNA strands on GO can be useful for the development of novel genosensors, nanosized scaffolds for drug delivery, and other applications in nanomedicine. J. Phys. Chem. C 2017, 121, 18221

The study of non-covalent interaction between biomolecules and carbon nanostructures:
It was shown that the cation-π interaction significantly enhances the binding energy of cationic chromophores, positively charged nucleobases with the carbon nanotube surface and its curvature changes their structures during adsorption; J. Phys. Chem. C (2010), 114, 16215, J. Phys. Chem. C (2012), 116, 20579; J. Mol. Graph. and Modelling (2016) 70, 77
Nanostructures formed by linear heterocyclic molecules (such as imidazophenazine and its derivatives) with the nanotubes and/or graphene were studied and the effect of the curvature of the carbon surface and the side groups in the structure of these molecules on the binding energy was revealed, as well as the opportunity to vary the polarizability of graphene and nanotubes by these molecules. ChemPhysChem (2016) 17, 1204; Chem. Phys. (2017) 483-484, 68
The influence of the curvature of the carbon nanotube surface on the energy interaction between the Watson-Crick pairs of nucleic acids was studied; Chem.Phys.Lett. (2014) 610-611, 186
The structures of hybrids formed by porphin and meso-5,10,15,20-tetraphenyl porphyrin (TPP) with graphene and the corresponding intermolecular interaction energies are studied with the DFT and molecular dynamics calculations. The influence of the peripheral rings arranged around the porphyrin core in the TPP structure on its interaction energy with graphene upon the TPP adsorption is analyzed. Computational and Theoretical Chemistry 1133 (2018) 1–6

The study of luminescence from semiconducting carbon nanotubes:
A significant increase in the intensity of the luminescence from semiconducting SWNTs in aqueous suspensions after doping cysteine was first observed, it was shown that doping with other amino acids has considerably less impact on the nanotube luminescence; Chem. Phys. Lett. (2015) 623, 51, J. Fluoresc. (2016) 26 1951, Materials Chem.Phys. (2017) 186, 131, Nanoscale Research Lett. (2016) 11490
It was shown that the variation of the density of the polymer coverage of the surface of semiconducting carbon nanotubes in aqueous suspension allows to increase the sensitivity of the nanotube luminescence to the biomolecule doping; Optics and Spectroscopy (2014) 117, 428, Ukr. Phys. Journ. (2016) 61, 932, Materials Chem.Phys. (2017) 186, 131
The exciton energy transfer between the isolated carbon nanotubes in nanoassembly formed by cationic porphyrin was firstly observed and studied. Phys.Chem.Chem.Phys. (2014) 16, 10914
It was shown that the redox active molecule (e.g. dithiothreitol) can be used to control the ordered or disordered conformation of biopolymer on the carbon nanotube and serve as a molecular probe to detect the surface defects on the nanotubes exploiting the luminescence from semiconducting nanotubes; Chem.Phys. (2014) 438, 23.
It was revealed that the nanotube emission is less sensitive to the glutathione (GSH) impact compared to cysteine doping. Experiments with other thiol-containing compounds as DTT and DTE showed a tendency for nanotube to increase the emission larger using a compound with lower redox potential (stronger reducer). A row DTT>DTE>cysteine>GSH was build that shows increasing the emission intensity induced by thiols. Chem.Phys (2019) 516, 218-224

Composite films of single-walled carbon nanotubes with strong oxidized graphene
The graphene oxide-single walled carbon nanotube (GO-SWNT) hybrids prepared in aqueous suspension and films obtained by vacuum filtration are studied with UV-IR absorption spectroscopy, scanning electron microscopy (SEM) and computer simulation. Low temperature measurements of conductivity of these films in the temperature range 5-291 K were also performed. We have found spectroscopic manifestation of the interaction between GO and SWNT in the hybrid, estimated the interaction energy between components, revealed the conductivity in the composite film although in the GO film a noticeable conductivity was not observed. The decrease in the conductivity with lowering of temperature indicates that this dependence is similar with the conductivity observed in disorder semiconducting systems. Low Temperature Physics 2019
The composite films of 5-halogen substituted uracils (5-fluorouracil, 5-chlorouracil) with graphene oxide were firstly obtained and it was shown that the modes associated with the vibrations of NH groups are most sensitive to changes in the structure of composite films. Low Temperature Physics 43 (3), 2017, 400; Low Temperature Physics 44 (8), 2018, 847.

Low-temperature FTIR spectroscopy of isolated biomolecules and their nanoscale complexes
For the first time the populations of main structural isomers of 2’-deoxyadenosine and adenosine were estimated, its characteristic spectral bands were established and it was shown that purine nucleosides have stronger intramolecular H-bonds than the pyrimidine ones. Low Temperature Physics 40 (6), 2014, 565; Low Temperature Physics 41 (11), 2015, 936;

Spectroscopic study of anticancer drugs binding to biological macromolecules
Formation of stable extended self-assembly of new tricationic meso-porphyrin on inorganic polyphosphate (mixture of J- and H-aggregates, several hundred nanometers in diameter) was revealed. Spectroscopic properties and structural characteristics of the aggregates were determined, their most favorable structures was calculated using DFT method. Biophys. Chem. (2014) 185, 39.
It was shown that increased anticancer activity of novel zinc metallated porphyrin-imidazophenazine conjugate can be conditioned by the double stabilization of the quadruplex poly(G) by both components of the hybrid. The incorporation of the porphyrin moiety of the conjugate into the poly(G) groove is enhanced by additional intercalation of the phenazine moiety between the guanine bases, that induce inhibition of the telomerase activity and suppress the growth of cancer cells. J. Fluoresc. (2015) 25, 1897.

Mass spectrometric characterization of nanoclusters of biomolecules
Evidences of preservation of the quasi-cyclic or quasi-helical self-organization of the PEG polymer chain around the protonated Cytosine nitrogen base on their noncovalent complex transfer from the liquid to the gas phase are obtained by electrospray mass spectrometry and molecular dynamic simulation. J. Analyt. Chem. (2015) 70, 1533.doi: 10.1134/S1061934815130110s
Monomer/dimer dependent modulation of reduction activity of the cationic dye methylene blue adsorbed on negatively charged surfactsnt nanolayers is revealed by a novel mass spectrometric approach. Occurrence of reduction for dimers and its absence for monomer agrees with varied biological effects of the dye in photodynamic therapy. RSC Advances (2014) 4, 60260. doi:10.1039/C4RA09592H
Formation of silver nanoclusters Agn+ in polyether media is revealed by means of mass spectrometry, mechanisms of Agn formation are determined, which include Ag+ wrapping by a polyether chain. Intermediate hydrogen atom-containing nanoclusters AgnH+ (n=2,4,6) are detected for the first time. J. Analyt. Chem. (2017) 72, 1289, doi:10.1134/S1061934817130032; J. Analyt. Chem. (2012) 67, 987.
In the framework of a problem of combined drugs actions a competition between antimalarial artemisinin-type agents and aspirin for binding with phospholipid membranes was revealed by means of electrospray mass spectrometry and quantum chemical modelling. This means that membranotropic activity of artemisin-type agents and aspirin is modified under their combined usage. Chem. Phys., (2015), 455, 81, doi:10.1016/j.chemphys.2015.04.014
Formation of stable noncovalent complexes of cardioprotective medicine flokalin with amino acids Lyz and Thr was revealed by combined mass spectrometric and quantum-mechanical study. Such complexes model biologically significant interactions of the drug with the KATP- membrane channel domains enriched with these two amino acids in biological systems. J. Mol. Struct., (2017), 1146, 441, doi:10.1016/j.molstruc.2017.06.007