Method for producing nanocapules of spirulin in guar gum

FIELD: nanotechnologies.

SUBSTANCE: invention relates to nanotechnology and the food industry. Process for preparing spirulina nanocapsules in guar gum a gum is characterized in that guan gum is used as the nanocapsule coating, and the spirulina powder is used as the core, the spirulina powder being added to the suspension of guar gum in benzene, in the presence of 0.01 g of E472c as a surfactant, then stirred at 1,000 rpm, after 1,2-dichloroethane is added, after which the resulting suspension is filtered and dried at room temperature, wherein the core: shell weight ratio is 1:1, or 1:3, or 1:2.

EFFECT: method for the preparation of spirulina nanocapsules is proposed.

1 cl, 3 ex

 



 

Same patents:

FIELD: electricity.

SUBSTANCE: metal-dielectric structure and method of its manufacturing are related to electronic industry and electronic engineering and may be used both in modern energy-saving systems and components being an integral part of modern processors, in particular for development of microsized and nanosized electromechanical systems. The metal-dielectric structure consists of dielectric and conducting layers made as an assembly of capillaries filled with metals to the required length, at that conducting layers are etched on selective basis at different butt ends and metalised. The conducting layers are represented by two different types of electroconductive materials etched on selective basis at different butt ends, at that the conductive layers may be made of semiconductor materials, conducting glass, carbon nanoparticles and nanotubes while the dielectric layers may be made of optical and electron-tube glass, polymer materials. In cross-section the dielectric and conducting layers may be made as concentric circles. The manufacturing method for the above metal-dielectric structure includes assembly, overstretching, stacking to the unit, at that upon multiple overstretching vacuum filling with conducting materials is performed, and butt ends are etched on selective basis with different chemical composites and then they are metalised.

EFFECT: invention allows increasing capacitance and breakdown voltage for capacitors.

5 cl, 7 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to pressure sensitive adhesives, suitable for use on a wide variety of substrates, including both high surface energy and low surface energy substrates. Pressure sensitive adhesives comprise an acrylate polymer and surface-modified nanoparticles. The surface-modified nanoparticles comprise a nanoparticle comprising a silica surface and surface modifying groups, covalently bonded to the silica surface of the nanoparticle. At least one surface modifying group is a polymeric silane surface modifying group. At least one surface modifying group is a non-polymeric silane surface modifying group.

EFFECT: disclosure also provides a method of preparing pressure sensitive adhesives, including exposing them to UVA and UVC radiation.

21 cl, 2 dwg, 12 tbl

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention refers to pharmaceutical industry, namely to selenium nanocomposites of natural hepatotrophic galactose-containing polysaccharide matrixes, representing water-soluble orange-red powders containing zerovalent selenium (Se0) nanoparticles sized 1-100 nm in the quantitative content of 0.5 - 60 wt %, possessing antioxidant activity for treating and preventing redox-related pathologies, particularly for treating toxic liver damage, to a method for producing and to an antioxidant agent containing the above nanocomposites.

EFFECT: invention provides the targeted agent delivery to liver cells, as well as higher agent accessibility and lower toxic action of selenium.

7 cl, 11 ex, 4 tbl

FIELD: medicine.

SUBSTANCE: method is implemented as follows: preparing a mixture 1 by adding 0.5M aqueous solution of selenious acid 250 mcl in PEG 400 8 ml, mixing thoroughly in a magnetic mixture at min. 750 rpm with pH of the given mixture 7.55; that is followed by preparing a mixture 2 by adding 0.5M aqueous solution of hydrazine hydrochloride 250 mcl in PEG 400 8 ml, mixing thoroughly in a magnetic mixture at min. 750 rpm with pH of the given mixture 0.68. The mixture 1 is added to the mixture 2 by mixing thoroughly drop by drop. The prepared solution is dialysed against distilled water with removing PEG 400 and hydrazine hydrochloride; the surplus water is distilled off in a rotary evaporator at 60 rpm and 70C. The prepared solution is added with a low-molecular compound specified in a group of: gentamicin, hexamethylene tetramine, methionine, cephalexin, indole-3-carbinol; pH is reduced to 7.2-7.4. The components are mixed in an amount to provide their content in the agent, wt %: biologically active low-molecular compound 0.001-5.0; selenium 0.0001-1.0; water up to 100.

EFFECT: simplifying the technology.

2 tbl, 3 ex, 1 dwg

FIELD: medicine.

SUBSTANCE: invention refers to medicine and describes a method for producing glucosamine sulphate nanocapsules by non-solvent addition, wherein glucosamine sulphate is added in small amounts to a carrageenan suspension used as a nanocapsule shell in butanol, containing E472c preparation 0.01 g as a surfactant; the produced mixture is agitated and added with the non-solvent hexane 6 ml, filtered, washed in hexane and dried.

EFFECT: invention provides simplifying and accelerating the process of nanoencapsulation in carrageenan and higher weight yield.

2 ex

FIELD: chemistry.

SUBSTANCE: invention relates to field of obtaining nanocomposite coatings and can be used in creation of optic microelectronic devices and materials with increased corrosion resistance and wear resistance. Method of obtaining two-phase nanocomposite coating, consisting of titanium carbide nanoclusters, distributed in amorphous hydrocarbon matrix, on products from hard alloys, includes application of adhesive titanium or chromium sublayer, magnetron sputtering of titanium target in gas mixture of acetylene and argon under pressure 0.01-1 Pa and precipitation of dispersed particles of target and carbon-containing radicals on product surface in combination with bombardment of surface with ions, accelerated by bias voltage, with product surface being subjected to purification with argon ions from plasma, generated by electronic beam, before application of adhesive sublayer, and gas mixture being activated in the process of coating application by impact with beam of electrons with energy 100 eV.

EFFECT: invention is aimed at increase of coating adhesion and micro-hardness of obtained products, as well as at provision of high efficiency of application of acetylene in the process of coating application.

1 ex, 2 dwg

FIELD: chemistry.

SUBSTANCE: catalyst contains carrier from porous zeolite KL and binding agent and catalytically active substance - platinum. Carrier additionally contains tin tetrachloride pentahydrate nanopowder, and as binding agent - mixture of gibbsite and rutile powders in equal proportions, with particle size of each not exceeding 40 mcm. Ratio of ingredients is in the following range, wt %: platinum - 0.3-0.8, mixture of gibbsite and rutile powders - 25-70, zeolite KL - 29.12-74.69, tin tetrachloride pentahydrate - 0.01-0.08. Claimed catalyst is characterised by high activity in reactions of aromatisation of synthetic hydrocarbons.

EFFECT: invention also relates to method of obtaining such catalyst.

2 cl, 1 tbl, 4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to field of nanotechnology, in particular to plant growing, and deals with method of obtaining nanocapsules of 6-aminobenzylpurine. Method is characterised by the fact that 6-aminobenzylpurine is used as core and sodium alginate is used as envelope of nanocapsules, obtained by addition of E472c as surfactant to sodium alginate in butanol, portioned addition of 6-aminobenzylpurine into suspension of sodium alginate in butanol and further drop-by-drop introduction of precipitating agent-petroleum ether after formation of separate solid phase in suspension.

EFFECT: simplification and acceleration of process of obtaining nanoparticles and increased output by weight.

3 ex

FIELD: chemistry.

SUBSTANCE: method includes crushing and fractioning of initial material, delignification of initial raw material by alkaline hydration and alkaline pulping with further washings. After that, two-stage acidic hydrolysis with intermediate neutralisation and three washings is performed. Then, three-stage bleaching with hydrogen peroxide H2O2 with three washings is carried out. In second washing finely dispersed ozone is supplied. Obtained product is additionally subjected to homogenisation and drying. Invention makes it possible to obtain final product with virtually absolute absence of lignin, with high organoleptic and physical and chemical properties from lignin-containing initial material.

EFFECT: method does not require application of expensive equipment, does not involve application of highly toxic reagents, includes simple technological operations, is characterised by production scalability.

3 cl, 3 dwg, 1 ex

FIELD: medicine.

SUBSTANCE: invention describes a method for producing Sel-Plex nanocapsules possessing the supramolecular properties by non-solvent addition, characterised by the fact that Sel-Plex is dissolved in dimethyl sulphoxide; the prepared mixture is dispersed in xanthum gum solution used as a nanocapsule shell, in butanol, in the presence of E472c preparation while stirring at 1000 cycles per second; the mixture is added with the precipitator benzol, filtered and dried at room temperature.

EFFECT: simplifying and accelerating the process of nanoencapsulation and ensuring higher weight yield.

4 ex, 12 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to nanotechnology, particularly a method of producing aspirin nanocapsules in a carrageenan envelope. The disclosed method includes preparing an aspirin suspension in benzene; dispersing the obtained mixture into a carrageenan suspension in butanol in the presence of an E472c preparation while mixing at 1000 rps; adding tetrachloromethane; filtering the obtained nanocapsule suspension and drying at room temperature.

EFFECT: method provides a simpler and faster process of producing nanocapsules and increases mass output.

1 dwg, 4 ex

FIELD: chemistry.

SUBSTANCE: invention relates to encapsulation, particularly to a method of producing albendazole nanocapsules in a sodium alginate envelope. The disclosed method includes adding albendazole to a sodium alginate suspension in hexane in the presence of an E472c preparation while mixing at 1000 rps. The weight ratio of albendazole and sodium alginate is 1:3 or 3:1. Further, 1,2-dichloroethane is added. The obtained suspension of nanocapsules is filtered, washed and dried. The process of producing the nanocapsules is carried out at 25C for 20 minutes.

EFFECT: invention provides a simpler and faster process of producing nanocapsules, reduces losses during production thereof (high mass output).

3 ex, 1 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to encapsulation, particularly a method of producing resveratrol nanocapsules in an envelope made of low- or highly esterified apple or citrus pectin. According to the disclosed method, resveratrol is dispersed in a suspension of low- or highly esterified apple or citrus pectin in benzene in the presence of an E472c preparation while stirring at 1000 rps. Tetrachloromethane is then added. The obtained suspension of nanocapsules is filtered and dried. The process of producing the nanocapsules is carried out at 25C for 10 minutes.

EFFECT: invention provides a simpler and faster process of producing nanocapsules, reduces losses during production thereof (high mass output).

9 ex, 1 dwg

FIELD: medicine.

SUBSTANCE: invention refers to medicine and describes a method for producing glucosamine sulphate nanocapsules by non-solvent addition, wherein glucosamine sulphate is added in small amounts to a carrageenan suspension used as a nanocapsule shell in butanol, containing E472c preparation 0.01 g as a surfactant; the produced mixture is agitated and added with the non-solvent hexane 6 ml, filtered, washed in hexane and dried.

EFFECT: invention provides simplifying and accelerating the process of nanoencapsulation in carrageenan and higher weight yield.

2 ex

FIELD: nanotechnology.

SUBSTANCE: according to the invention method, albendazole is added to the suspension of sodium alginate in butanol in the presence of the preparation E472s when stirring at 1000 revolutions per second. The mass ratio of albendazole and sodium alginate is 1:3 or 3:1. Then acetonitrile is added. The resulting suspension of the nanocapsules is filtered, washed, and dried. The process of production of nanocapsules is carried out at 25C for 20 min.

EFFECT: simplification and acceleration of the process of production of nanocapsules, reduction of losses in their production.

1 dwg, 2 ex

FIELD: chemistry.

SUBSTANCE: according to the method a suspension of resveratrol in heptane was dispersed into a suspension of xanthan gum in butanol in the presence of E472c under stirring at the rate of 1000 rev/s. A mixture of benzene and water taken at a volume ratio of 5:1 or 3:1 was added to the said suspension. The resulted suspension of nanocapsules was filtered, washed and dried. The process was performed at a temperature of 25C within 10 min.

EFFECT: simplified and fast process of nanocapsule production, reduced process losses.

4 ex, 2 dwg

FIELD: nanotechnology.

SUBSTANCE: suspension of aspirin in benzene is produced. The resulting mixture is dispersed into suspension of sodium alginate in butanol in the presence of the preparation E472s when stirring at 1000 rpm/sec. Then chloroform is poured, the resulting suspension of nanocapsules is filtered and dried at room temperature.

EFFECT: simplification and acceleration of the process of production of the nanocapsules, and increase in the yield by weight.

1 dwg, 4 ex

FIELD: nanotechnology.

SUBSTANCE: shell of the nanocapsules is used as apple or citrus high- or low-esterified pectin, and the core - as L-arginine. According to the inventive method, L-arginine is suspended in benzene, the resulting mixture is dispersed into a suspension of apple or citrus high- or low-esterified pectin in benzene in the presence of the preparation E472s while stirring 1000 revolutions per second. Then carbon tetrachloride is added, the resulting suspension of the nanocapsules is filtered and dried at room temperature. The process is carried out for 15 minutes.

EFFECT: simplification and acceleration of the process of producing the nanocapsules, and increase in the yield by weight.

6 ex

FIELD: nanotechnology.

SUBSTANCE: method of production of nanocapsules of vitamin in sodium alginate is characterized in that the shell is used as sodium alginate, and the core - as the vitamin, in a weight ratio of core:shell as 1:3. According to the method of preparing the nanocapsules the vitamin is added to a suspension of sodium alginate in benzene in the presence of the preparation E472s while stirring at 1300 rev/sec. Then hexane is added, the resulting suspension is filtered and dried at room temperature.

EFFECT: simplification and acceleration of the process of production of the nanocapsules, and increase in the yield by weight.

3 dwg, 8 ex

FIELD: chemistry.

SUBSTANCE: invention relates to method of obtaining L-arginine nanocapsules in sodium alginate envelope. In the process of method realisation L-arginine is suspended in benzene. Obtained mixture is dispersed into suspension of sodium alginate in hexane in presence of preparation E472c with mixing at 1000 rev/sec. After that, chloroform is added, and obtained suspension of nanocapsules is filtered and dried at room temperature. Process is realised for 15 minutes.

EFFECT: method in accordance with invention provides simplification and acceleration of process of obtaining nanocapsules and increased output by weight.

3 ex

FIELD: medicine, pharmaceutics.

SUBSTANCE: invention relates to pharmaceutical industry, namely represents composition, which contains mixture of particles of hydrophobic silicon dioxide aerogel, which have specific area of surface per weight unit (Sw) in range from 500 to 1500 m2/g and size, expressed in form of volume mean diameter (D[0.5]), in range from 1 to 1500 mcm, and at least one first linear silicone oil, which has viscosity higher than 50 mm2/s, and at least second and third linear silicone oils, and each of them has viscosity lower than or equal 50 mm2/s.

EFFECT: mixture of particles of silicon dioxide aerogel and linear oils provides possibility of obtaining compositions, which provide comfort and smoothness of skin after application and have dullness and "soft focus"-adding properties.

23 cl, 8 ex

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