Nano-structures formed by manipulation of individual atoms or molecules, or limited collections of atoms or molecules as discrete units (B82B1)

B82   Nano-technology(3676)
B82B1                 Nano-structures formed by manipulation of individual atoms or molecules, or limited collections of atoms or molecules as discrete units(1295)
ethod for low invasive surgical stimulation of reparative osteogenesis of slowly consolidated distraction regenerates in combination with false connection of limbs long bones of limbs in case of soft scar tissues // 2628368
FIELD: medicine.SUBSTANCE: under the control of electron-optical transducer, a guiding drill rod is introduced through the slow-consolidating distraction regenerate area and the false joint area, through which a cutting tool in the form of a cannulated flexible shaft with a drill is then introduced, and a hole of a specified diameter is formed in the medullary canal of the long tubular bone using a replaceable cutting tools set with drills of increasing diameter. A nanostructured composite implant is inserted into the formed internal cavities through a hole of a predetermined diameter formed in the medullary canal of the long tubular bone in slowly consolidating distraction regenerate and the false joint area.EFFECT: method allows to reduce the time of distraction regenerate reconstruction into a full bone.2 cl
ethod for manufacturing bimetallic wire from different metals with cold drawing // 2628232
FIELD: metallurgy.SUBSTANCE: invention relates to the treatment of metals by pressure, in particular to the production of composite materials, and can be used to manufacture bimetallic wire of dissimilar metals. The zone, which consists of interconnected metals of the core and shell and carbon nanotubes, previously applied to at least one of the contact surfaces of the metals to be joined. Carbon nanotubes are applied during the preparation stage of the core contact surfaces and shell to the joint. Then, cold drawing is carried out to form a transition zone of the metals of the core, the shell and the mentioned nanotubes.EFFECT: increase uniformity of shell thickness over the length and cross-section.2 cl, 2 dwg

Composition having gcr-activity for determination of poly-aromatic heterocyclic sulfur compounds in hydrocarbon products, process of obtaining a composition, planar solid-phase optical sensor on its basis and method of obtaining it, use of sensor for poly-aromatic heterocyclic sulfur compounds analysis // 2627980
FIELD: chemistry.SUBSTANCE: composition having GCR activity for the determination of polyaromatic heterocyclic sulfur-containing compounds (PHSC) in hydrocarbon products is a chemotropic gel containing a polymer matrix with silver nanoparticles of anisotropic shape with a size of 10-90 nm and particles of graphene oxide with a size of 1-2 mcm. A process for the preparation of this composition comprises the synthesis of silver oxide, dissolution of the resulting suspension in an aqueous ammonia solution, mixing the resulting solution with graphene oxide, sequentially introducing silver nitrate and a reducing agent to produce silver nanoparticles in a suspension of 10-90 nm in size and introducing a polymer powder for the suspension transition into a hemotropic gel. A planar solid-state optical sensor includes a film having a thickness of up to 5 mcm obtained from a composition having a GCR-activity and containing on the surface π-acceptor compound. The PHSC analysis method includes applying a liquid sample to the planar solid-state optical sensor with the test compound.EFFECT: creation of planar optical sensors that allow using the method of giant Raman spectroscopy with high sensitivity, high selectivity, a wide range of detectable concentrations and high reproducibility and precision.24 cl, 6 tbl, 17 dwg

New materials and methods for dispersing nanoparticles in matrices with high quantum outputs and stability // 2627378
FIELD: physics.SUBSTANCE: first, luminescent nanoparticles are mixed, the outer surface of which is covered with two types of protective molecules, with a solid polymer precursor. Protective molecules contain the first and second functional groups. The first functional group is connected to the outer surface of the luminescent nanoparticle, and the second functional group provides a miscibility with the precursor of the solid polymer and/or the ability to react with it. The first functional group of the first type of protective molecules contains a metal ion having coordination functionality, and the first functional group of the second type of protective molecules has the functionality of a Lewis base. A polymeric article, for example a coating, a self-supporting layer or a plate transmitting light with a wavelength of 380-750 nm is produced from the resulting solid polymer with embedded luminescent nanoparticles. The lighting device comprises a light source and a light transducer including mentioned solid polymer. Any luminescent nanoparticles can be used in the invention.EFFECT: stability of nanoparticles and the colour purity are improved, the luminescence efficiency is increased and the lifetime is increased.16 cl, 8 dwg
Raw mixture for construction materials // 2627335
FIELD: construction.SUBSTANCE: raw materials for construction materials includes a cement, a filler, an aggregate and mixing water, containing the superplasticizer and the composite carbon nanomaterial, that is the agglomerates (from three up to three hundred) of carbon nanoscale quasi-one-dimensional filamentary formations of cylindrical shape polycrystalline graphite with internal channel mainly of two sizes 49.3±0.45 nm and 72.0±0.45 nm; with two types of fulleroid nanoparticles, localized on the surface of the filaments: a) polyhedral carbon nanoparticles with the closed internal channel of 1-5 nm in diameter; B) clusters of C60 and the active loose carbon with globes sizes of 1-5 mcm in the concentration of 10-9-10-6 wt %.EFFECT: increase of the concrete consistency, provision of high homogeneity and annual occurrence frequency of the consistency factor, strength, frost resistance and waterproofness of the resulting material.4 tbl, 2 dwg
Nanocrystalline cellulose (ncc) in band seal compositions (sk) // 2627057
FIELD: chemistry.SUBSTANCE: seam composition for the seams of adjacent wall slabs includes nanocrystalline cellulose, water, filler, binder and thickener, the content of nanocrystalline cellulose sufficient to improve the resistance to cracking of the suture composition upon drying, the diameter of the nanocrystalline cellulose is less than 60 nm, the content of nanocrystalline cellulose is from 0.05 to 0.15 wt %, based on the total weight of the composition, and the thickener content is from 0.3 to 0.5 wt %, based on the total weight of the composition. The invention is developed in subclaims.EFFECT: elimination of the formation of cracks in different thicknesses of the material.14 cl, 1 ex, 4 dwg

ethod of obtaining nanocaphul l-arginine in the hellan samples // 2626831
FIELD: nanotechnology.SUBSTANCE: L-arginine is used as the nucleus, and gellan gum is used as the envelope of nanocapsules at the mass ratio of the core: shell 1:1, 1:2, or 1:3, respectively. The method is that L-arginine is slowly added to a suspension of gellan gum in butyl alcohol in the presence of 0.01 E472c preparation as a surfactant with stirring at 1,300 rpm. Then 5 ml of diethyl ether are poured, the resulting suspension is filtered off and dried at room temperature.EFFECT: nanocapsules production process simplification and acceleration, reduction of losses during the nanocapsules production.1 dwg, 4 ex

Building composition and complex additive for building composition // 2626493
FIELD: chemistry.SUBSTANCE: complex additive for building composition including, wt %: cement 80-85, superplasticizer C-3 2.0-3.5, microsilica 10-12, natural or synthetic zeolite - the rest, contains zeolite modified with carbon nanotubes, in an amount of 5-10 wt %. A building composition comprising, wt %: a mineral binder 15-25, water 8.5-10, a filler - the rest and a powdery complex additive according to clause 1, the content of the complex additive is 0.15-0.8 wt % of the mineral binder.EFFECT: reducing cement consumption by increasing the activity of the additive while maintaining the strength characteristics of the concrete.2 cl, 4 dwg
ethod for acceleration of tubular bones distraction regenerate formation // 2626250
FIELD: medicine.SUBSTANCE: immediately after receipt of the required segment length, the bone is extended by another 4 mm. A carbon nanostructure cylindrical implant with ends having the form of truncated cone is placed into the bone regenerate, diameter of the implant is 30% of the bone diameter, and its length exceeds the required value of elongation by 4 mm. After implant insertion the bone fragments are brought together to the required value of elongation so that the ends of the implant were introduced into the medullary channels of proximal and distal bone fragments (2 mm for each piece). Fixing is performed using the device to form a strong supporting ability of the bone-carbon unit.EFFECT: method can shorten the life of hardware fixation, duration of treatment.2 cl, 10 dwg
Advanced immobilized biological objects // 2625756
FIELD: medicine.SUBSTANCE: device is described, having a surface comprising a layered coating, wherein the outer coating layer comprises a plurality of cationic hyperbranched polymer molecules characterized by (i) the presence of central fragment with a molecular weight of 14-1.000 Da, (ii) total molecular weight of 1.500-1.000.000 Da (iii) total molecular weight and central fragment molecular weight ratio of at least 80:1; and (iv) the presence of terminal functional groups, wherein one or more of the terminal functional groups are covalently linked with an anticoagulant object.EFFECT: device includes a material that is more stable over time.21 cl, 10 dwg, 3 tbl, 11 ex

Tube element of electrochemical device with thin-layer solid-oxide electrolyte (versions) and method of its manufacture // 2625460
FIELD: chemistry.SUBSTANCE: proposed tubular fuel cell with a thin-layer solid oxide electrolyte, gas diffusion electrodes, interface and collector layers is made with monolithic end bosses that have a smooth transition to the electrolyte. Reducing the thickness of the carrier solid electrolyte is achieved due to end thickenings and/or of carcass in the working area, as well as by increasing the thickness of one or both current electrode collectors. The cylindrical or weakly cone tube of the carrier electrolyte is made of ceramics with an average crystallite size of less than 500 nm, has a wall thickness of less than 0.3 mm With end thickenings up to 0.5 mm and thin-layered 15-20 mcm electrodes located on the lateral surface of the electrolyte in the interval between the end thickenings. The method for manufacturing a tubular element includes the use of nanoscale solid electrolyte powders, micro-sized and nanoscale powders of electrode materials and interface layers prepared in the form of films with a polymeric binder, from which a multilayer preform of the element is formed by winding the films onto a rod, laminating layers of the preform, for example, by magnetic pulse method and at least two-stage sintered together at temperatures below 1300°C.EFFECT: improvement of manufacturability of production of solid oxide element, reduction of mass and dimensions characteristics and increase of electrical and resource characteristics of fuel cell.8 cl, 7 dwg

Recuperator of energy beam charged particles // 2625325
FIELD: physics.SUBSTANCE: recuperator contains a charged particle collector (1), a circular scanning device (3), a collector of reflected charged particles (4) in the form of an axisymmetric system of the cone-shaped electrodes (7) with an axial hole located in the housing (8). The electrodes (7) and the body (8) are made of carbon nanoporous material coated with a layer of graphene nanotubes (15). The ionistor type capacitor (6) consists of a dielectric body (10) with a channel (11) for supplying a coolant, a charging electrode (12), the second electrostatic electrode (14) made of carbon nanoporous material coated with a layer of graphene nanotubes (15), and the dielectric membrane separating them (13), on which the layer of graphene nanotubes (15) is applied on both sides. The working cavities (16) and (17) are filled with a solid, nanomodified electrolyte on a lithium base. The body (8) of the reflected particle collector is mounted on the charging electrode (12) of an ionistor type capacitor, on the axis of which an insulated reflector electrode (18) is located. A wire (23) for supplying voltage is connected to the reflector electrode (18), and the wires (24) and (25) are designed to remove electrostatic electricity.EFFECT: possibility to achieve voltage on the capacitor electrodes up to 3-5 V and to provide a high capacity of electric charge, increasing the efficiency of energy recovery, reducing the heating of electrodes.2 dwg, 1 tbl

ethod of obtaining nanolithographic figures with fractal structure with a superstructured surface // 2624983
FIELD: physics.SUBSTANCE: using the method of local anodic oxidation by applying a voltage between the moving probe of the scanning probe microscope and the semiconductor substrate, a nanolithographic pattern is formed, additionally a film-forming sol based on alkoxy silicon compounds is produced, which is obtained in the framework of sol-gel technology, then annealed, as a result, fractal structures with a super-developed surface are formed in places of local anodic oxidation.EFFECT: ensuring the possibility of forming nanolithographic patterns with a fractal structure with a super-developed surface.3 dwg
ethod for manufacture of nanocomposite material with biological activity // 2624294
FIELD: nanotechnology.SUBSTANCE: invention relates to a method of manufacturing a polymeric material with biological activity that is characterized by nanostructuring the surface with etching of gas ions followed by application of a film nano-sized coating comprising fluorine and carbon by ion-assisted precipitation in a vacuum. The method for manufacturing a material with biological activity comprises a substrate of a biocompatible polymer, preferably polytetrafluoroethylene or polyethylene terephthalate, comprising etching the surface of the substrate by ion-plasma treatment in a vacuum using tetrafluoromethane ions and then ionically stimulated deposition of the carbon-containing film from cyclohexane in a vacuum onto the nanostructured substrate surface. Nanostructuring of the substrate surface is carried out for 10-40 minutes, and a carbon-containing film-modifying film 0.3-1.0 mcm in thickness is formed from the plasma-forming mixture of cyclohexane and tetrafluoromethane vapour in the range of their content (vol. %): 62-32/35-65, respectively.EFFECT: method ensured the formation of a two-layered matrix system, the increased antimicrobial properties of which are achieved automatically.2 ex
agnetorheologic coolant and method of its application // 2624113
FIELD: heating system.SUBSTANCE: magnetorheologic coolant consists of a liquid containing a finely dispersed component of a magnetic material the surface of which is treated with a surfactant. The noted liquid is selected from a number of alcohols, polyhydric alcohols, silicone compounds. As a magnetic material, the coolant contains microparticles of carbonyl iron with the size of each microparticle in one plane of not more than 15 mcm with a thickness of no more than 10% of the larger linear dimension in the plane. The amount of said finely dispersed component in the coolant is from 0.05 to 2.5 wt %. The method of using the noted magnetorheological coolant in refrigeration and air-conditioning systems involves impacts on it with a permanent magnetic field with a strength of 2 to 700 Oe.EFFECT: increased efficiency of heat transfer and control of hydrodynamic flow resistance, for example, volume flow of coolant.2 cl, 3 tbl

Nanocatalizer and method for removing sulfur connections from hydrocarbons // 2624004
FIELD: chemistry.SUBSTANCE: invention relates to a nanostructured catalyst system for removing mercaptans and/or hydrogen sulfide from hydrocarbon gas mixtures comprising: (a) one catalytic substance. This catalytic material is a metal in elemental form or a metal oxide, or a metal sulphide which is selected from the group consisting of Na, V, Mn, Mo, Cd, W, (b) a nanostructured substrate. The substrate material is selected from the group consisting of single-walled carbon nanotubes, double-walled carbon nanotubes, multilayer carbon nanotubes, nanoporous carbon, carbon nanofibres or mixtures thereof, in which one catalyst substance is applied to the nanostructured substrate in an amount of 0.05% (wt/wt) to 9% (wt/wt) relative to the total wt of the catalytic system. This catalytic system does not contain a second or any other catalytic substance. The invention also relates to a process for removing mercaptans and hydrogen sulfide from gas streams using the claimed catalytic system.EFFECT: simplification of the hydrocarbon desulfurization process and cost reduction of the process.15 cl, 3 dwg, 11 ex
ethod of growing green hydroponic fodders using nanomaterials // 2623471
FIELD: agriculture.SUBSTANCE: method is implemented by treating seeds with an electrochemically activated cathode solution of iron and cobalt alloy nanoparticles at the percentage ratio of 70 to 30, respectively. Laboratory tests have showed high efficiency of the influence of this complex at the concentration of 0.001 wt %.EFFECT: method allows to increase the seed germination activation and the yield.2 tbl
ethod of intraoperative visualization of ischemic-reperfusion damage of myocardium // 2622983
FIELD: medicine.SUBSTANCE: intraoperatively, indocyanine green (ICG) is intravenously injected and 10-30 minutes after administration, a fluorescent image is recorded with excitation radiation of 780-810 nm and registration radiation of 820-900 nm.EFFECT: method makes it possible to detect areas of irreversible damage to the myocardium within the ischemic zone, to quantify the ischemic damage to the myocardium, does not require an examination of the obscuration of the operating room.4 cl, 2 dwg
icrocontact for photo-recommended hybrid microcircuit // 2621889
FIELD: physics.SUBSTANCE: microcontact for the photodetector hybrid microcircuit comprises two metal contact pads and, between them, a contact element with a predetermined area S0 of the cross section. The contact element is made of a plurality of thin electrically conductive joints attached at the ends to two metal pads, the total cross-sectional area of the entire plurality of thin electrically conductive connections forming the contact member also being an S0, but the area S1 of the cross section of each thin electrically conductive compound is not less than 104 times less than the total area S0 of the cross section of the entire plurality of thin electrically conductive joints forming the contact element, and the aspect ratio of one thin electrically conductive compound is from 103 to 104. Metal contact pads are made on the first and second semiconductor crystals with different coefficients of thermal expansion.EFFECT: increase of resistance of contact elements to thermocycling.4 cl, 2 dwg

ethod of obtaining highly-dispersed stabilized particles of sodium iodide in water solutions // 2621301
FIELD: chemistry.SUBSTANCE: method involves preparing the first solution, which is a solution of potassium iodide at a concentration of 0.216-3.6 mmol/l, preparing a second solution formed from an aqueous solution of silver nitrate at a concentration of 0.36 to 6.0 mmol/l and from a solution of polyelectrolyte stabiliser with a concentration of 1.0-10.0 mmol/l, mixing both solutions under normal conditions by pouring the first solution to the second solution to form stabilized silver iodide particles having an average particle size of 1.3-1.9 nm. Stabilized particles of silver iodide can be used as catalytic systems in the processes of destruction of organic substances or antimicrobial solutions.EFFECT: obtaining nanoscale silver iodide particles with a narrow size distribution, simplifying the way they are produced.2 dwg, 4 ex
ethod of estimation of the apoptosis process in the fabric of the brain of laboratory animals // 2621122
FIELD: medicine.SUBSTANCE: invention concerns the criteria for the diagnosis of the toxic effect of silver nanoparticles encapsulated in the natural polymeric matrix of arabinogalactan (nAgAG). Laboratory animals of the experimental group for 9 days intragastrically injected aqueous solution of nAgAg at a rate of 100 mcg of silver per kilogram of weight in 0.5 ml of distilled water. The animals of the control group receive 0.5 ml of distilled water for 9 days intragastrically. Immediately after the end of the exposure, sections of the brain tissues of the animals of both groups are made. They are stained for antibodies to the proteins caspase-3 and bcl-2 and conduct a survey microscopy of the preparations obtained. At this time, the total number of cells in 0.2 mm2, the number of pathologically altered neurons with caspase 3 expression, the number of pathologically altered neurons with bcl-2 expression, the number of normal neurons with caspase 3 expression, the number of normal neurons with bcl-2 expression as a percentage of the total cell count of 0.2 mm2. The ratio is calculated of these indicators on the drugs of the experimental group to those of the control group. When the number of pathologically altered neurons with caspase 3 expression increased by an average of 1.6 times in the experimental group, the number of normal neurons with the expression of caspase 3 averaged 2.5 times, pathologically altered neurons with bcl-2 expression on average of 2.4 fold, the number of normal neurons expressing bcl-2 is 1.5 times the conclusion about the presence of the process of apoptosis in the brain tissues of animals.EFFECT: method makes it possible to evaluate the functional state of neurons of the brain under the influence of silver nanobiocomposites, expands the arsenal of methods for evaluating the effect of toxic substances on the organism of laboratory animals.1 ex, 1 tbl

Women's sanitary towel, incontinence pad, gauze, bandage and dressings for wound treatment using tourmaline // 2620856
FIELD: medicine.SUBSTANCE: described articles comprise the first layer of bamboo fibers or organic cotton, adapted for a contact with the user's skin, a layer of non-woven material with an element made of polypropylene fibers and heat-resistant elastomers with absorbed tourmaline powder with nanometric particles located in the central region, and the layer opposite to the first layer and containing materials in its structure.EFFECT: possibility of product ventilation and creation of a barrier for liquid flow.3 cl, 7 dwg
Catalyst for hydroizomerization of diesel fuel // 2620813
FIELD: chemistry.SUBSTANCE: catalyst is obtained on the basis of platinum group metal nanoparticles deposited on a solid carrier by laser electrodispersion, providing an amorphous structure of platinum metal nanoparticles, at least 90% of platinum metal particles in the range of 1.0-4.0 nm, and the amount of metal in the catalyst less than 0.05 wt %.EFFECT: catalyst is characterized by a reduced content of expensive metals of the platinum group and with hydroisomerization of diesel fuel provides a low filterability temperature and high product yield.5 cl, 2 tbl, 3 dwg, 2 ex
Polymeric composition for drinks for the manufacture of glass - organo - carbon fiber reinforced plastic (cfrp) // 2620806
FIELD: chemistry.SUBSTANCE: describes a polymeric composition for impregnation in the manufacture of glass-, organo-, carbon-based plastics, comprising an epoxy vinyl ester resin, a peroxide curing initiator and a modifier in which a urethane prepolymer is used as the modifier, which is the product of the reaction of polyoxytetramethylene glycol with 2.4-tolylene diisocyanate with a mass fraction isocyanate groups in the range of 5.3-6.4% and additionally a curing accelerator, as well as a metallocarbon-type nanomaterial in the form of a 1% metal-containing suspension X nanostructures in isomethyltetrahydrophthalic anhydride at the following components content, mass parts: epoxy vinyl ester resin 100, the above modifier 4.5-7.6, peroxide curing initiator 1-5.0, curing accelerator 0.2-3.6, the above-mentioned nanomaterial 0.05-0.25.EFFECT: composition with improved thermophysical and technological parameters was obtained.3 cl, 2 tbl, 5 ex

Electroconductive coatings containing particles of graphenic carbon // 2620396
FIELD: chemistry.SUBSTANCE: composition of electoconductive coating comprises a film-forming resin and 0.1-95 wt % by weight of graphene carbon particles obtained thermally, based on total solids content in combination with another type of graphene particles, for example obtained from thermally expanded graphite. The graphene carbon particles obtained by thermal method contain less than 1.5 at.% of oxygen, have aBET surface area of less than 300 m2/G and average aspect ratio of more than 3:1. For obtaining graphene particles by thermal method, a precursor material containing methane or hydrocarbon material capable of forming variety of two-carbon fragments is introduced into thermal zone at a temperature of 3500-20000°C, then heated and collected the resulting particles. The film-forming resin contains epoxy resins, polyacrylates, polyester polymers, polyurethane polymers, polyamide polymers, polyether polymers, bisphenol A-based epoxy polymers, polysiloxane polymers, styrene, ethylene, butylene, core/shell polymers, polymeric particles, dispersed in non-aqueous medium, their copolymers and mixtures, latex resin or resin, dispersed in non-aqueous medium. The electroconductivity of cured composition is at least 1000 S/m. The thickness of dry film of electrically conductive coating obtained from said composition is 1-100 mcm.EFFECT: improved properties.24 cl, 2 dwg, 2 ex

Amplifier hub of electron beam with electron membrane // 2619767
FIELD: physics.SUBSTANCE: amplifier hub of the electron beam (AHE) comprises a body (1) with an internal axial tapering cavity, having a frusto-conical form, on the surface of which a silicon lattice (2) is applied with a top diamond layer (3). A multilayer electron membrane is installed in the larger hole of the axial cavity, the basis of which is a dynamically stable high-temperature tungsten plate (4) having a complex shape: the external high-temperature surface is flat, and the internal low-temperature surface has a concave hemispherical shape to focus the electrons in the beam. The plate (4) is made of an alloy with a porosity of 85% and a pore diameter of 10-3-10-4 mcm. The external high-temperature tungsten plate surface (4) has a layer of nanocomposite graphene (5) with nanopores (11), and the internal low temperature one - a layer of aluminium oxide (7) with nanopores (8). The body is provided with the axial anodes (12), (13) mounted at the side of the internal and the external openings and serving to feed the accelerating potentials, providing, respectively, electric electron withdrawal from the plasma flow and to control the energy of electrons and their concentration in the beam, being part of the AHE, and to control the concentration, current power and energy of the electron beam emerging from the AHE.EFFECT: providing the thermal and dynamic stability, improving the efficiency and conversion performance coefficient of the plasma flow energy in electrical power.1 dwg

ethod of producing nanocapsules of cephalosporin antibiotics in human serum albumin // 2619332
FIELD: pharmaceutics.SUBSTANCE: invention relates to chemical-pharmaceutical industry and is a method of encapsulating a preparation via a nonsolvent deposition method, characterized by the fact that the cores of nanocapsules are water-soluble cephalosporin antibiotics, the envelope is human serum albumin at a ratio shell: nucleus is 1:1 or 3:1, upon that the water-soluble cephalosporin antibiotics in the form of powder and preparation E472c as a surfactant is added to albumin solution, obtained mixture is stirred and after dissolving of all components one slowly, by drop, adds petroleum ether, obtained suspension of nanocapsules is filtered, washed with petroleum ether and dried.EFFECT: invention allows to simplify and accelerate the process of producing nanocapsules and increase mass output.1 cl, 2 dwg, 3 ex

ethod of producing aspirin nanocapsules in sodium alginate // 2619329
FIELD: medicine.SUBSTANCE: invention relates to encapsulation. Described a method of producing aspirin nanocapsules. As a nanocapsules shell use sodium alginate. In agreement with the method according to the invention aspirin is added to the sodium alginate suspension in the butanol in the presence of the preparation E472c as a superficially active substance, at a mass ratio shell: nucleus is 1:5 or 3:1, or 1:1, respectively. Then mix and add butylchloride. Obtained suspension of nanocapsules is filtered, washed and dried.EFFECT: invention provides a simpler and faster process of producing nanocapsules, reduces losses during production thereof (high mass output).1 cl, 1 dwg, 4 ex
Epoxide composition // 2618557
FIELD: chemistry.SUBSTANCE: described epoxy composition to bond and repair fiberglass structures comprising epoxy diane resin modifier, a filler and an amine curing agent, wherein as the modifier used Silane-modified polyurethane (SPU-polymer), as a filler - nanoparticles silicate type representing a powder organophilic clay based on modified montmorillonite MONAMET 1E1, as a hardener an aromatic polyamine trademark "Aramin" with the following parts content by weight of epoxy resin: 100, SPU-5-25 polymer nanoparticles silicate type 10-50, a hardener - aromatic polyamine 40-50.EFFECT: obtained composition with improved processing properties providing high adhesion strength glueing or repairing parts of fiberglass structures.2 cl, 2 tbl, 3 ex
Pharmaceutical composition, having antibacterial and antifungal activity and method for its preparation // 2618450
FIELD: pharmacy.SUBSTANCE: offered pharmaceutical composition has antibacterial and antifungal activity, comprising triyodmetan spread on aluminosilicate nanotubes with the tubes outer diameter of 60-160 nm, the internal diameter of 10-60 nm and the tubes length of 100-5000 nm, taken at the following ratios, wt %: triyodmethan 50, aluminosilicate nanotubes 50.EFFECT: speed reduction of release of atomic iodine, improving fixation to wound.
ethod for preparing dispersed-reinforced mortar for monolithic floors // 2617812
FIELD: construction.SUBSTANCE: method for preparing a dispersion-reinforced mortar for monolithic floors comprises mixing Portland cement, fiber, an aggregate, a plasticizing additive and mixing water in a mixer; the fiber is represented by basalt microfiber modified with polyhedral multilayer carbon nanostructures of the fulleroid type, the plasticiser is represented by a superplasticiser on the polycarboxylate base. The basalt microfibers are pre-dispersed in mixing water with the plasticizing additive by a rotary disperser within 9-11 minutes, then the product obtained is stirred in a forced action mixer with the aggregate and the portland cement.EFFECT: increasing the compressive strength and the bending tensile, and increasing the mortar homogeneity degree.2 tbl

Diagnostic method of riemannian curvature of nanothin crystals lattice // 2617151
FIELD: nanotechnology.SUBSTANCE: method of diagnosing the Riemann curvature of the nanothin crystal lattice includes obtaining electron microscopic image of nanothin crystal in the bright field, getting of micro electron-diffraction pattern from the crystal, micro diffractive study of nanothin crystal, analysis of rotational curvature of the nanothin crystal lattice . At the nanothin crystal electron microscopic image select the physical point M and a two-dimensional direction, for that, select the pair - nonlinear bending extinction contours and the corresponding to it reflex at the micro electron-diffraction pattern, feeling azimuthal broadening; perform diagnosing of nanothin crystal lattice Riemann geometry at a given point M, and this two-dimensional direction, specified by bivector (a, b) - a pair of non-collinear vectors, starting from a single point, which coincides with the center of the micro electron-diffraction pattern, received from nanothin crystal, located in the micro electron-diffraction pattern plane, where the vector b corresponds to the broaden reflex, by the joint analysis of a pair - nonlinear bending extinction contour, presented in the electron-microscopic image of the crystal in the dark field, and corresponding to it reflex at the micro electron-diffraction pattern of the crystal, for determining the continuity of the reflex azimuthal broadening and continuity of the corresponding to it bending contour, then carry out the diagnosing of the Riemann curvature of the nanothin crystal lattice, by means of determining the numerical value of Riemann curvature of the nanothin crystal lattice in the given point M and given two-dimensional direction, specified by bivector (a, b), according to definite formula.EFFECT: to provide the possibility of reliable, accurate and express method of diagnostics of the nanothin crystal lattice Riemann curvature .6 dwg, 4 tbl

New suspensions of gold and platinum based bimetallic nanocrystals electrochemical methods of their production and application // 2617055
FIELD: pharmacy.SUBSTANCE: suspensions include water, processing booster, and gold-platinum bimetallic nanocrystals, with the average particle size of less than 50 nm, that are present in the suspension in the total metal atomic concentration of 2-1000 ppm, and have surfaces providing at least one characteristic selected from the following: (1) no organic chemical components adhered or attached to the said surfaces, and (2) are substantially pure and free from any chemical components adhered or attached to surfaces other than water, products of water lysis or processing booster, none of which changes the functioning of the nanocrystals. The suspensions are also characterized by pH between 5 and 12 and a zeta potential of at least -30 mV. Furthermore, the invention relates to methods for suspensions production and methods of treatment of patients with cancerous condition comprising injection of these suspensions.EFFECT: obtaining of nanocrystals suspensions with more clean surfaces and more active behavior compared to the particles containing surface impurities.33 cl, 130 dwg, 40 tbl, 22 ex
Composite carbon nanomaterial for bone defects replacement, method of its manufacture and implant of composite caron nanomaterial // 2617052
FIELD: medicine.SUBSTANCE: composite carbon nanomaterial for bone defects replacement is described, comprising pyrocarbon matrix and fibrous reinforcing framework made in the form of a skeleton with bars containing carbon fibres oriented along the bar axis and containing vertically installed bars and horizontal layers, each of which is formed parallel to the oriented bars, while the bars of each layer are oriented relative to the bars of previous and subsequent layer at an angle of 60°, wherein the average size of graphite-like fragments in material structure is less than 30 nm, the method of obtaining material comprising pyrocarbon matrix and omnidirectional reinforcing skeleton with bars made of carbon fibres, located along the bar axis is also described, wherein the implant material has an elastic modulus of not more than 15GPa, material open porosity is not less than 5 vol. %, and the average size of graphite-like fragments in material structire does not exceed 30 nm.EFFECT: material and its implants for bone defects replacement have mechanical properties similar to the bone properties.25 cl, 1 ex

Solar pv module with stationary concentrator (versions) // 2617041
FIELD: physics.SUBSTANCE: two versions are proposed for the solar photovoltaic module with a stationary concentrator containing reflectors as the concentrating elements, including a radiation photodetector with bilateral photosensitivity, located in the focal area of the concentrator. The concentrator comprises two symmetric branches of the parabolic-cylinder reflector separated by a flat rectangular reflector, or it is designed as a parabolic hemisphere with a flat circular bottom as a reflector, and the radiation photodetector with bilateral photosensitivity, is translucent to the incident sunlight thereon and made either rectangular, or circular. Its area is equal to or exceeds the area of the flat reflector.EFFECT: module specific power increase and decrease in the cost of electricity generated even at the low concentration ratio of solar radiation.8 cl, 1 dwg

Concealment method of moving and stationary bodies of arbitrary shape and composition based on a coating made of nanostructured composite material with quasi-zero refractive index // 2616688
FIELD: nanotechnology.SUBSTANCE: method of producing a concealment coating on the surface of the object to be masked with pneumatic spray comprises applying to the surface of the object to be masked a mirror coating of silver or aluminium, then the layer with quasi-zero refractive index, comprising a dielectric matrix of polymethyl methacrylate or silica glass with 3±5% of uniformly distributed in it silver nanoparticles with 2.5-5 nm radius, the surface of which has a stabilising cover, the refractive index of which coincides with the dielectric matrix refractive index, and then an applied coating drying at 60°C within a day is carried out.EFFECT: obtaining of a coating with the ability to form surface optical waves, bending around the surface of the masked body in a wide wavelength range from 450 to 1200 nanometers.6 dwg
ethod of improving the structure of arable layer // 2616675
FIELD: agriculture.SUBSTANCE: method involves preliminary application to the surface of the arable layer of the structure forming additives, plowing, harrowing and cultivation, as mentioned additives the nano vermiculite is used, which is applied to the surface of the arable layer in an amount of (20.0-25.0) kg 1 ha crop area.EFFECT: increase of soil fertility, the coefficient of structure, water stability.1 tbl, 12 ex
ethod for improving soil structure // 2616674
FIELD: chemistry.SUBSTANCE: method involves the preliminary application of the structure-forming additive - nanobentonite in the amount of 15.0-25.0 kg per 1 ha of sown area - onto the soil surface, plowing, harrowing, and the cultivation.EFFECT: increasing the proportion of the particles ensuring soil fertility, the soil structuring factor, and water stability.1 tbl, 12 ex
ethod for improving soil structuring // 2616673
FIELD: chemistry.SUBSTANCE: method comprises the prior applying of a structure-forming additive to the soil surface, plowing, harrowing and cultivation; said additive is represented by nanophosphorite applied to the soil surface in an amount of (8.0-12.0) kg per 1 ha crop area.EFFECT: increasing soil fertility, the structure coefficient, the water stability coefficient.1 tbl, 12 ex
ethod for improvement of soil structuring // 2616672
FIELD: agriculture.SUBSTANCE: method involves preliminary application to the soil surface of structure-forming addition - nano sapropel in the amount of 60-100 kg per 1 ha of the crop area, plowing, harrowing and cultivation.EFFECT: increased particle proportion, ensuring for soil fertility, of the structural factor while maintaining or slightly increasing the water stability factor.1 tbl, 12 ex
ethod for obtaining nanocapsul of unabi in the konjak gum // 2616502
FIELD: nanotechnology.SUBSTANCE: method for producing nanocapsules unabi in konjak gum, wherein the berries jujube powder dispersed in suspension of konjak gum in ethanol in the presence of 0.01 g of E472s preparation as surfactant while stirring at 1300 rev/min, then butyl chloride is poured, the resulting suspension is filtered and dried at room temperature, wherein the weight ratio of core: sheath ratio is 1:1 or 1:3.EFFECT: method simplifies and accelerates the process of nanocapsules production, increases the yield by weight.3 ex

Storage method of natural gas by adsorption in industrial gas cylinders // 2616140
FIELD: oil and gas industry.SUBSTANCE: invention relates to a storage method of methane natural gas using adsorption in all-purpose gas cylinders, in the microporous material with an effective width of pores smaller than 3 nm, high bulk density, moulded into blocks as special hexagonal prisms, whose basal diameter of the mentioned circle is not less than 15% smaller than the hole in the neck of the cylinder, packed in such a way that the internal volume of the cylinder is filled with not less than 95% of the adsorption material, can be applied in gas fuel storage, distribution and transportation systems.EFFECT: increased amount of gas fuel stored in the cylinder, reduced fire and explosion hazard of the storage system.4 cl, 2 dwg
Polymer compound, resistant to ionising radiation // 2615514
FIELD: chemistry.SUBSTANCE: invention relates to polypropylene based polymeric compounds and may be used for health care products. The compound contains polypropylene with a melt flow index of 25-35 g/10 min, divinylstyrene thermoelastoplast with a melt flow index below 1 g/10 min, polycarbonate with a melt flow index of 6.51 g/10 min, sterically hindered amine, triallylisocyanurate, nanocellulose as a stabiliser, in the amount of 0.0010 to 0.0500 wt %.EFFECT: polymeric compound is high resistant to ionising radiation, increased storage life of the products made thereof.3 tbl, 6 ex

Carbon fiber for composite materials with improved electrical conductivity // 2615427
FIELD: chemistry.SUBSTANCE: electrically conductive carbon fiber is described, consisting of filaments of carbon fibers which include a metallic coating wherein the carbon fiber filaments include the composition present on the metallic coating based on at least one polymeric binder containing conductive nanoparticles, and the concentration of the metal coating is 8-25 wt %, and the concentration of conductive nanoparticles is 0.1-1 wt %, in each case based on the weight of the carbon fibers provided with a metal coating and a composition. The method of manufacturing carbon fibers for composite materials and a fiber-reinforced composite material are described as well.EFFECT: composite material with improved electrical conductivity is obtained.15 cl, 2 tbl, 6 ex, 2 dwg

esoporous titanium dioxide nanoparticles and methods for their prepairing // 2615402
FIELD: chemistry.SUBSTANCE: titanium oxide is in the form of the uniform spherical particles with the size of 20 nm to 100 nm. Each particle contains mesopores with the uniform distribution of their sizes centered at the value of 2 nm to 12 nm. For particles of TiO2, an aqueous solution of a titanium compound is prepared at the concentration of 0.5 to 1.5 moles per liter in the presence of the alpha hydroxy carboxylic acid in a molar ratio of the acid to titanium of 0.02 to 0.2; the solution is heated to 70-80°C followed by the addition of the anatase seeds TiO2, and this temperature is maintained of 1-3 hours; then it is heated for 4.2 hours to the reflux temperature in the range of 100°C; the solution is cooled to the room temperature, and the reaction product is separated.EFFECT: improved quality of titanium oxide due to the homogeneity of the particles and the narrow distribution of the pore size.8 cl, 6 dwg

Pharmaceutical composition based on β-modification of 2,3-bis-(hydroxymethyl)quinoxaline-n,n'-dioxide and method for obtaining thereof // 2614736
FIELD: chemistry.SUBSTANCE: group of inventions relates to medicine. Disclosed a pharmaceutical composition containing crystalline modification of β2,3-bis-(hydroxymethyl)quinoxaline-N,N'-dioxide, characterised by a number of diffraction peaks (d, Ǻ) and their intensity (Irel., %), and silver nanoparticles. Disclosed production process. Antimicrobial, antibacterial and bactericidal pharmaceutical composition, comprising crystalline β-modification of 2,3-bis-(hydroxymethyl)quinoxaline-N,N'-dioxide, characterised by a number of diffraction peaks (d, Ǻ) and their intensity (Irel., %), and silver nanoparticles, constitutes a light fluffy powder of yellowish to light-brown colour, non-odorous.EFFECT: disclosed the said pharmaceutical composition and method for obtaining thereof.7 cl, 6 dwg, 4 ex
ethod of betulin nanocapsules production // 2614713
FIELD: nanotechnology.SUBSTANCE: method of betulin nanocapsules production, at that 100 mg of betulin powder is dispersed into 300 mg of konjac gum suspension in ethanol, in the presence of E472c 0.01 g, while mixing at 1300 rev/min, then add 3 ml of butyl chloride, the resulting suspension is filtered and dried at the room temperature.EFFECT: method simplifies and accelerates the process of nanocapsules production, increases the yield by weight.3 ex

ethod for plasmon-resonance photothermal tumour therapy in experiment // 2614507
FIELD: medicine.SUBSTANCE: solution of gold nanorods coated with polyethylene glycol is injected intravenously to animals with tumours. 24 hours after administration, diagnostic laser irradiation is performed by an infrared laser with wavelength in the range of 700-900 nm with power density in the range of 1-2 W/cm2 for 2 minutes. Tumour heating temperature is measured using the thermograph. At tumour heating less than 45°C, nanoparticles are intravenously injected once again, and 24 hours after nanoparticle administration diagnostic laser irradiation is performed. Local tumour heating temperature is measured. Upon reaching a temperature of 45°C and higher within 2 minutes, therapeutic infrared laser irradiation with wavelength in the range of 700-900 nm with power density of 4-5 W/cm2 is performed for 20 minutes.EFFECT: increased efficiency of tumour laser hyperthermia due to intertwined tumour regression, manifested in necrobiotic changes in tumour cells and inhibition of its growth.2 ex, 1 tbl, 4 dwg
ethod for hybrid plasmon-luminescent markers production // 2614245
FIELD: chemistry.SUBSTANCE: method consists in formation of metal plasmon nanoparticles on the inorganic luminescent nanoparticles surface, where nanoparticles are previously doped by rare earth metal ions. Plasmon nanoparticles are prepared by reduction of liquid solutions. The colloidal solution of inorganic luminescent nanoparticles in 1.2-dichloroethane is mixed with a supramolecular complex solution [{Au10Ag12(C2Ph)20}Au3PPh2(C6H4)3PPh2)3][PF6]5 in 1,2-dichloroethane to obtain a liquid solution, the liquid solution is recovered by laser radiation with a wavelength corresponding to the absorption band of the supramolecular complex, a power density of from 0.1 to 1 mW/cm2at laser exposure time of 10-60 minutes.EFFECT: invention enables high chemical purity of markers and small number of processing steps.5 dwg, 3 ex
Application of anabaena sp. pcc 7120 strain for silver nanoparticles production // 2614118
FIELD: biotechnology.SUBSTANCE: during biological recovery of silver with nanoparticles production, incubation is performed under constant illumination of the Anabaena sp. PCC 7120 in nitrogen-free medium with silver nitrate.EFFECT: invention provides a solution of silver nanoparticles, wherein the nanoparticles exist in a free state.
 
2550824.
Up!