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The possibility of the fast response biological sensor development based on composite of the single-wall carbon nanotubes and aptamers and purposed for specific detection of proteins has been shown. The effect of the surface modification of the single-wall carbon nanotubes on the sensor sensitivity has been investigated. It has been demonstrated that the carboxylated nanotubes have better sensitivity for thrombin detection.
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The techniques for forming the nanoscale elements of gate of the power microwave transistor, based on the AlN/GaN heterostructures, have been developed. The optimal parameters of exposure of 950-polymethylmethacrylate (PMMA) and ELP-20 have been defined. The technological route of ion beam lithography using the multilayer resists has been developed and investigated. The technology for creating the grounded continuous metal mesh of the alignment marks above the resist, sensitive to ions, for visualizing the alignment marks on the dielectric substrate by ion microscopy method has been completed.
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Volumetric Albumin Composites Based on Nanotubes and Fabricated by Continuous Laser Radiation Action
The possibility of creating a volumetric nanostructure for recovery of the improper bones and tissues (or for treatment of the native defects of human evolution) has been considered. Four types of multi-layer and one-layer carbon nanotubes, manufactured by the methods of theкьo-catalytic dissociation, disproportioning on Fe-clusters and thermal cathode dispersion in the inert gas, have been investigated. The possibility of applying the volumetric nanocompositions as a bio solder for laser welding of the cartilage tissue has been demonstrated. The tissue compatibility with the nanocomposition material introduced into the rabbit ear perichondrium has been examined.
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The method for molecular quasi-dimensional conductor formation under the alternating electric field based on polianiline molecules and multiwalled carbon nanotubes as conductive electrodes has been suggested. On the basis of the calculations of intermolecular interaction and electric field strength the mechanism of such structure formation, based on building molecular dipole in the strong electric field on the end of the nanotubes, has been suggested. Based on simulation a model, which qualitatively explains possible transport mechanisms in the quasi-one-dimensional structure, has been offered.
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The process of the film oxidation of graphene, containing one and several layers, under the influence of UV irradiation structure in water vapor has been investigated. The regularity has been revealed and the difference in topography variation, as well as in the optical properties of grapheme, having a different number of layers, has been demonstrated. The possibility of the surface functionalization with modification of the energy structure of graphene has been revealed. The differences in the mechanisms of UFO oxidation of monolayer, multilayer and few-layered graphene have been analyzed. The correlation of the topographic defects of the graphene material properties and of the structural defects, observed on Raman scattering of light spectra, has been demonstrated.
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The processes of creating the narrow-spectrum photosensitive structures have been investigated. Two technological approaches based on the J-aggregates of cyanine dyes have been proposed: the electro-kinetic deposition of single J-aggregates in the planar configuration of electrodes and the creation of the multi-layer structures with the photosensitive layer from the film of the cyanine dye J-aggregates and transparent electrode from the conductive carbon nanotube network on the flexible substrate of polyethylene phthalate.
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Using the atomic force microscopy methods the morphology of cell structures, cultivated on films from collagen and chitosan fibers, has been studied. The specific features of the growing cells morphology on a submicron level have been investigated, in particular, it has been shown that the number of the flagella of diameter up to 100 nm of the cells grown on the films from the collagen and hitosan fibers is larger than that one of the control samples, grown on glass substrates.
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The radiation effects in planar nanosized structures under static and pulse irradiation have been analyzed. The characteristics of the planar nanosized structure samples fabricated by deposition of super-thin titanium film and of the field-effect transistors based, on the carbon nanotube bundles, on the semi-isolating GaAs substrate have been investigated. The physical mechanisms in radiation change of the nanoelectronics device characteristics have been determined.
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The dependence of the cathode potential jumps on the material probes has been shown. The possibility of emission of the interelectrode gap during the local anodic oxidation and the feasibility of the effective laser simulation of anodic oxidation in some cases have been predicted.
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