5 documents found, page 1 of 1
Detection of helical water flows in sub-nanometer channels
Zelenovskii, Pavel; Soares, Márcio; Bornes, Carlos; Marin-Montesinos, Ildefonso; Sardo, Mariana; Kopyl, Svitlana; Kholkin, Andrei; Mafra, LuísNanoscale flows of liquids can be revealed in various biological processes and underlie a wide range of nanofluidic applications. Though the integral characteristics of these systems, such as permeability and effective diffusion coefficient, can be measured in experiments, the behaviour of the flows within nanochannels is still a matter of speculation. Herein, we used a combination of quadrupolar solid-state NM...
Method for determining the chirality sign of peptide nanotubes using the dipole...
Bystrov, Vladimir; Sidorova, Alla; Lutsenko, Aleksei; Shpigun, Denis; Tverdislov, Vsevolod; Zelenovskiy, Pavel; Kopyl, Svitlana; Kholkin, AndreiIn this work the method for calculating the index and sign of chirality using the values of the dipole moments of each individual dipeptides forming a helix structure of a peptide nanotube is proposed. Calculations of the individual dipeptide dipole moments using semi-empirical quantum method PM3 and force field method Amber are preformed in the frame of HyperChem software package. Results obtained for diphenyl...
Method for determining the chirality sign of peptide nanotubes using the dipole...
Bystrov, Vladimir; Sidorova, Alla; Lutsenko, Aleksei; Shpigun, Denis; Tverdislov, Vsevolod; Zelenovskiy, Pavel; Kopyl, Svitlana; Kholkin, AndreiIn this work the method for calculating the index and sign of chirality using the values of the dipole moments of each individual dipeptides forming a helix structure of a peptide nanotube is proposed. Calculations of the individual dipeptide dipole moments using semi-empirical quantum method PM3 and force field method Amber are preformed in the frame of HyperChem software package. Results obtained for diphenyl...
Piezoelectricity in self-assembled peptides: a new way towards electricity gene...
Slabov, Vladislav; Kopyl, Svitlana; Santos, Marco P. Soares dos; Kholkin, AndreiSelf-assembled nanostructured peptides are of great interest nowadays due to their biocompatibility and an array of outstanding functional properties. Among them, strong piezoelectricity combined with low dielectric constant is beneficial for high voltage and power generation at the nanoscale. This Chapter is an overview of the piezoelectric phenomena in self-assembled peptides including effects of the growth c...
Filling carbon nanotubes with magnetic particles
Kopyl, Svitlana; Bystrov, Vladimir; Bdikin, Igor; Maiorov, Mikhail; Sousa, Antonio C. M.Magnetic carbon nanotube composites were obtained by filling carbon nanotubes with paramagnetic iron oxide particles. Measurements indicate that these functionalized nanotubes are superparamagnetic at room temperature. Details about the production and characterization of these materials are described along with the experimental procedures employed. These magnetic carbon nanotubes have the potential to be used i...