WO2024258315A1 - Липосомальная композиция, способ ее получения и применения - Google Patents
Липосомальная композиция, способ ее получения и применения Download PDFInfo
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- WO2024258315A1 WO2024258315A1 PCT/RU2024/050124 RU2024050124W WO2024258315A1 WO 2024258315 A1 WO2024258315 A1 WO 2024258315A1 RU 2024050124 W RU2024050124 W RU 2024050124W WO 2024258315 A1 WO2024258315 A1 WO 2024258315A1
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- biologically active
- liposomal composition
- active substances
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/24—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing atoms other than carbon, hydrogen, oxygen, halogen, nitrogen or sulfur, e.g. cyclomethicone or phospholipids
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/10—Dispersions; Emulsions
- A61K9/127—Synthetic bilayered vehicles, e.g. liposomes or liposomes with cholesterol as the only non-phosphatidyl surfactant
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
Definitions
- the present group of inventions relates to the field of applied biotechnology and can be used in cosmetology, pharmaceutical and food industries, in particular, in the production of specialized, functional and fortified food products.
- liposomal compositions which, upon hydration or upon contact with biological fluids in the body of a human or animal, spontaneously form liposomal vesicles (liposomes).
- liposomes spontaneously form liposomal vesicles
- Patent RU2621145C2 (published 31.05.2017; MIC: A61K 9/127, A61K 31/685, B28B 3/00) describes an invention related to the field of biotechnology, which makes it possible to obtain nanocontainers for various types of substances used in cosmetology, pharmacology, and medicine.
- the technical result of the analogue consists in obtaining a monodisperse homogeneous system with a particle size from 59.9 nm to 106.2 nm.
- the analogue describes a method for producing liposomes, which is characterized in that a 1% solution of lecithin in ethyl alcohol is evaporated in a PSA RV10 control rotary evaporator at a water bath temperature of 60°C, as a result of which a lipid film is obtained on the wall of the evaporation flask; then add a centimole sodium phosphate buffer pH 7.4 in a volume equal to the volume of lecithin solution in ethyl alcohol; stir for 1 minute; then the resulting solution is exposed to ultrasound for 15 minutes, due to which a monodisperse homogeneous system with a particle size from 59.9 nm to 106.2 nm is obtained at the output.
- the first disadvantage of the analogue is the need to use an organic solvent when obtaining liposomal particles, ethanol is used as an organic solvent.
- the organic solvent is toxic, accordingly, its presence in the composition of liposomal particles that enter the animal's body or a person, is dangerous and puts the health of a living organism at risk.
- the presence of an organic solvent in the composition of liposomal particles worsens the physical, chemical and biological characteristics of liposomes.
- the removal of the organic solvent is a complex technological process, which leads to an increase in the labor intensity of the technological process for obtaining liposomal particles of the analogue.
- Another disadvantage of the analogue is the use of additional stages of suspension processing, consisting of ultrasound irradiation and extrusion through membrane filters of liposomal particles, which ensures their micronization. This complicates the technological process of obtaining liposomal particles in the analogue. In addition, ultrasound treatment of liposomal particles leads to their excessive heating, which worsens the physical, chemical and biological characteristics of liposomes.
- the next disadvantage of the analogue is the low reproducibility of obtaining liposomal particles, which leads to the impossibility of scaling the process of their production.
- Patent RU2216315C2 (published 20.11.2003; IPC: A61K 9/127) describes an invention related to the field of medicine and concerns a method for producing liposomes.
- the technical result of the analogue consists in reducing the number of stages of the composition manufacturing process and in obtaining stable liposomes with highly effective encapsulating capacity.
- the analogue describes a method for producing a composition containing a reagent, which includes the stages of (i) forming empty liposomes from a lipid; (iii) mixing the liposomes obtained in stage (i) with a solution of sugar and a reagent and (iii) drying the mixture obtained in stage (j), characterized in that the ratio of the mass of sugar in stage (j) and the mass of lipid in stage (i) is from 1: 1 to 6: 1 (w/w).
- the first disadvantage of the analogue consists in the need to use an organic solvent in obtaining the composition. The organic solvent is toxic, therefore, its presence in the composition that enters the body of an animal or a person is dangerous and puts the health of a living organism at risk.
- the presence of an organic solvent in the composition worsens the physical, chemical and biological characteristics of liposomes.
- the removal of the organic solvent is a complex technological process, which leads to an increase in the labor intensity of the technological process for manufacturing the analog composition.
- Another disadvantage of the analog is the multi-stage method for obtaining the composition, which also complicates the technological process of its manufacture.
- the next disadvantage of the analog is the low reproducibility of obtaining the composition, which leads to the impossibility of scaling the process of its production.
- Another disadvantage of the analogue is that lyophilic (sublimation) drying is used to obtain the composition, which also complicates the technological process of obtaining the composition, since the specified technological process requires vacuum and cryogenic conditions.
- sucrose carrier particles are selected such that their size is 400 - 800 ⁇ m; then the phospholipid component is mixed with an organic solvent, which is ethanol, using a magnetic stirrer at a temperature of 60 ° C for 1 hour; then the mixture of the organic solvent and the phospholipid component is sprayed onto the sucrose carrier particles in a fluidized bed at a rate of 2.1 ml/min and a spray pressure of 0.3 bar for 2 hours; then, the resulting liposomal composition is subjected to hydration; then the resulting liposomes are dispersed; after that, the dispersed liposomes are subjected to lyophilic (sublimation) drying.
- an organic solvent which is ethanol
- the main disadvantage of the method for obtaining liposomes in the work is its multi-stage nature, this complicates the technological process of manufacturing liposomes, which leads to the impossibility of scaling the process of their production.
- Another disadvantage of the analogue is that lyophilic (sublimation) drying is used, which also complicates the technological process of obtaining liposomes, since vacuum and cryogenic conditions are necessary in the specified technological process.
- the next disadvantage of the work devoted to the method for obtaining liposomes is the need to use an organic solvent when obtaining proliposomes, which form liposomes when hydrated.
- the organic solvent is toxic, therefore, its presence in the liposomes that enter the body of an animal or a person is dangerous and puts the health of the living organism at risk.
- the presence of an organic solvent in the liposomal composition worsens the physical, chemical and biological characteristics of the liposomes formed from it during hydration.
- the removal of the organic solvent is a complex technological process, which leads to an increase in the labor intensity of the technological process of obtaining liposomes in work.
- liposomes in the production of biologically active additives are limited by the complexity of the technology for obtaining liposomal forms, which leads to their high cost.
- limitations of using liposomes in the production of biologically active additives include: their lack of resistance to negative temperatures, for example, during transportation and storage of the product in the winter; low stability of their physical, chemical and biological properties, due to the high water content in liposomes, etc.
- Dry liposomal compositions which are proliposomes (liposome precursors) are the most promising for commercial use. Their prospects for commercial use are due to the fact that proliposomes have stable physical, chemical and biological properties, ensuring a long shelf life, and allow achieving high efficiency of loading with the active substance due to increased bioavailability.
- the described method makes it possible to obtain liposomes by adding water to the proliposomes prepared according to the method described above, where the average size of the liposomes is about 10 ⁇ m.
- the main disadvantage of the analogue is the need to use an organic solvent in obtaining the composition.
- An organic solvent is toxic, therefore, its presence in the composition of a composition that enters the body of an animal or a person is dangerous and puts the health of a living organism at risk.
- the presence of an organic solvent in the composition composition worsens the physical, chemical and biological characteristics of liposomes.
- the removal of the organic solvent is a complex technological process, which leads to an increase in the labor intensity of the technological process for obtaining proliposomes.
- the presence of an organic solvent in proliposomes containing biologically active substances leads to their inactivation.
- Patent RU2311449C2 (published 27.11.2007; IPC: SPV 1/00, A61K 9/50, A61K 9/127) describes an invention related to the food industry, veterinary science, pharmacology, biology, medicine and the cosmetic industry.
- the technical result of the analogue consists in obtaining a composition with a high degree of stability and incorporating capacity.
- the analogue describes a method for obtaining a liposomal composition, which includes forming a mixture of lipids with lipophilic and hydrophilic additives, finely dispersed powder and dispersion, characterized in that, at the stage of preparing the fatty phase, the lipids are preliminarily treated with amino-containing compounds to redistribute the charge, as well as partially hydrated the lipids, then additives are introduced in the required quantities, wherein the liposomes are formed at the interface of the two-phase system water/water-insoluble particles.
- the first disadvantage of the analogue is the use of an organic amino-containing liposome stabilizer, since the said stabilizer is toxic and causes an allergic reaction.
- the next disadvantage of the analogue is the formation of liposomes only on the liquid/solid phase interface, which complicates the use of the method for obtaining the liposomal composition of the analogue on an industrial scale.
- Patent RU2437649C2 (published 27.12.2011; IPC: A61K 9/127) describes an invention related to the field of applied biotechnology, namely to methods for producing highly dispersed liposomal preparations for the prevention and treatment of human and animal diseases, which can be used in medicine, cosmetology, the food and chemical industries, and in agriculture.
- the technical result of the analogue consists in increasing the efficiency and safety of the industrial technology for producing highly dispersed active liposomal preparations, applicable for the inclusion of virtually any biologically active substances in liposomes.
- the analogue describes a method for producing dry liposomal preparations, including mixing phospholipids, a powder carrier and a biologically active substance and further processing the resulting mixture, characterized in that a composition is poured into the loading hopper of a jet mill, consisting of a biologically active substance, a phospholipid from the group including vitol and lecithin PRO, and a water-soluble powder carrier, and subjecting said mixture to milling in a jet mill at a pressure of at least 2.5 atm and a gas flow rate of at least 100 l/min with subsequent separation of a fraction with a particle size smaller than 50 ⁇ m.
- the analogue As an option in the analogue, it is proposed to subject a mixture of phospholipids and a powder carrier to milling, and then add a solution of the biologically active substance in a polar solvent to the resulting product, and subject the suspension to lyophilic drying, treating it, if necessary, before drying with ultrasound at a frequency of 40 kHz.
- the first disadvantage of the analogue is the processing of the liposomal mixture in a jet mill to obtain a highly dispersed powder, since jet mills have a high consumption of energy carrier and, as a result, high energy intensity of the processes; Moreover, when using jet mills, it is necessary to feed it uniformly with material and maintain a constant aerodynamic operating mode.
- Another disadvantage of the analogue is the complexity of regulating the process of manufacturing the liposomal composition, which negatively affects the reproducibility and quality of the manufactured dry liposomal composition.
- the next disadvantage of the analogue is that the components of the dry liposomal composition are additionally ground before mixing to obtain microparticles (less than 10 ⁇ m).
- the listed disadvantages of the analogue complicate the technological process of manufacturing the dry liposomal composition.
- the next disadvantage of the analogue is that lyophilic (sublimation) drying is used to obtain the dry liposomal composition, which also complicates the technological process of obtaining the dry liposomal composition, since vacuum and cryogenic conditions are necessary in the specified technological process.
- the lyophilized dried material must be additionally subjected to the granulation stage in order to then encapsulate and / or tablet the manufactured composition of the analogue.
- Another disadvantage of the analogue is that the dry liposomal composition is subjected to ultrasound treatment at a frequency of 40 kHz.
- the use of ultrasound treatment of the composition complicates the use of the analogue method on an industrial scale due to low productivity.
- ultrasound treatment of the liposomal composition leads to its excessive heating, which worsens the physical, chemical and biological characteristics of the liposomes.
- the next disadvantage of the analogue is the use of polar solvents in the manufacture of dry liposomal compositions, since polar solvents are toxic, and therefore their entry into the human or animal body has a negative effect on it.
- the objective of the present invention is to develop a composition of a liposomal composition, a method for its production and use, which ensure an increase in the bioavailability and stability of the physical, chemical and biological properties of biologically active substances.
- the said task is achieved thanks to such a technical result as ensuring an increase in the bioavailability and stability of the physical, chemical and biological properties of biologically active substances.
- the said task is achieved, including, but not limited to:
- the thickness of the coating of the particles of the composition of powdered biologically active substances with a phospholipid component which is 5 - 20% of the linear dimensions of the particles of the composition of powdered biologically active substances;
- the relative humidity of the liposomal composition being no more than 10%
- the essence of the claimed liposomal composition is that a thin dry phospholipid film is formed on the surface of the particles of the composition of powdered biologically active substances, this ensures an increase in the bioavailability and stability of the physical, chemical and biological properties of biologically active substances, which makes it possible to reduce the need for high concentrations of biologically active substances when taken orally.
- a layer of a protective component is applied to protect the phospholipid film that covers the particles of the composition of powdered biologically active substances from environmental influences and mechanical damage.
- the liposomal composition comprises a composition of powdered biologically active substances, a phospholipid component, a protective component with the following ratio of components to the total weight of the composition, wt.%: composition of powdered biologically active substances 80 - 95; phospholipid component 2 - 15; protective component 3 - 10.
- the coating thickness of the particles of the composition of powdered biologically active substances with the phospholipid component is 5 - 20% of the linear dimensions of the particles of the composition of powdered biologically active substances, and the relative humidity of the liposomal composition is no more than 10%.
- a composition of powdered biologically active substances such as vitamins, minerals, amino acids and other macronutrients is an important component of the liposomal composition, the said composition is necessary for the body to receive the necessary set of nutrients to maintain its vital functions.
- the use of a phospholipid component in the liposomal composition is due to the fact that, firstly, it is non-toxic; secondly, the phospholipid component is biodegradable, does not cause allergic reactions when entering a living organism; thirdly, the phospholipid component, due to its structure and composition, has a high affinity for cell membranes, which allows the substances contained inside the phospholipid component to be delivered directly into the cell.
- a protective component is necessary for the formation of a protective layer of particles of the composition of powdered biologically active substances coated with a phospholipid component, thereby protecting the phospholipid coating of the particles of the composition of powdered biologically active substances from environmental influences, including air oxidation, and from mechanical damage, for example, during transportation.
- a combination of a composition of powdered biologically active substances, a phospholipid component, and a protective component in a liposomal composition with the following ratio of components to the total weight of the composition, wt.%: composition of powdered biologically active substances 80-95; phospholipid component 2-15; protective component 3-10, provides increased bioavailability and stability of the physical, chemical, and biological properties of the biologically active substances.
- the coating thickness of the particles of the composition of powdered biologically active substances with a phospholipid component is 5 - 20% of the linear dimensions of the particles of the composition of powdered biologically active substances.
- Coating the particles of the composition of powdered biologically active substances with a phospholipid component ensures improved absorption and passing through biological membranes of biologically active substances, protects them from metabolism, improves the tissue distribution profile of biologically active substances, and also enhances their permeability into the cell. Changing the thickness of the coating with a phospholipid component in the specified range allows you to regulate the rate of release of biologically active substances.
- the thickness of the coating of the particles of the composition of powdered biologically active substances with a phospholipid component which is 5 - 20% of the linear dimensions of the particles of the composition of powdered biologically active substances, ensures an increase in the stability of the physical, chemical, biological properties and bioavailability of biologically active substances.
- the relative humidity of the liposomal composition is no more than 10%. This makes it possible to increase the stability of the physical, chemical and biological characteristics of the biologically active substances contained in the liposomal composition.
- the claimed liposomal composition is a dry powder or dry granules, which upon hydration or contact with biological fluids in the body of a human or animal spontaneously forms liposomes (liposomal vesicles).
- the present liposomal composition is the most promising for commercial use.
- the particle size of the composition of powdered biologically active substances can be 50 - 500 ⁇ m, which helps to increase the solubility of the composition of powdered biologically active substances upon hydration or upon contact with biological fluids in the body of an animal or human, which, accordingly, additionally increases the bioavailability of biologically active substances.
- Hydrophilic biologically active substances or lipophilic biologically active substances, or their mixture This allows to improve the bioavailability and stability of physical, chemical and biological properties of not only hydrophilic biologically active substances, but also lipophilic biologically active substances.
- the phospholipid component is an obligatory and necessary component for the formation of liposomes, which in this case are formed during hydration or contact with biological fluids of the present liposomal composition.
- the phospholipid component is an emulsifier that stabilizes the emulsion obtained during hydration or contact with biological fluids of the present liposomal composition.
- soy lecithin and/or egg lecithin and/or sunflower lecithin and/or phosphatidylcholine can be used as a phospholipid component in the liposomal composition.
- a plant resin or a monosaccharide, or a disaccharide, or a polysaccharide can be used as a protective component. This allows for protecting the phospholipid layer that coats the particles of the composition of powdered biologically active substances from mechanical damage during transportation, as well as preventing the impact of the environment on the phospholipid layer during storage of the liposomal composition, eliminating clumping and sticking of particles coated with a phospholipid component, which allows for maintaining increased bioavailability and stability of the physical, chemical and biological properties of biologically active substances.
- a powdered anti-caking component can be used in the liposomal composition in an amount of 1 - 5 wt.% of the total weight of the composition.
- Silicon dioxide and/or calcium orthophosphate and/or calcium stearate can be used as an anti-caking component. This allows maintaining the flowability of the liposomal composition, preventing lumping and adhesion of the liposomal composition particles during storage.
- the essence of the claimed method for producing a liposomal composition consists in applying a phospholipid coating to the surface of dry particles of the composition of powdered biologically active substances in a fluidized bed by spraying an aqueous emulsion of the phospholipid component. Coating the particles of the composition of powdered biologically active substances with a phospholipid component increases the bioavailability and stability of the physical, chemical and biological properties of the biologically active substances. Next, the particles of the composition of powdered biologically active substances coated with a phospholipid component are dried. active substances.
- a protective coating is applied to the surfaces of dry particles of the composition of powdered biologically active substances coated with a phospholipid component in a fluidized bed by spraying a solution of the protective component to protect the phospholipid film from environmental influences and mechanical damage. Afterwards, the particles of the composition of powdered biologically active substances coated with the protective component and the phospholipid component are dried.
- a method for producing a liposomal composition containing a powder component, a phospholipid component, and a protective component, wherein a composition of powdered biologically active substances is used as the powder component consists in producing a 2-15% aqueous emulsion of the phospholipid component; preparing the powder component in such a way that its relative humidity is no more than 10%; applying a 2-15% aqueous emulsion of the phospholipid component to the fluidized particles of the powder component by spraying; drying said particles coated with the phospholipid component; producing a 20-40% solution of the protective component; applying a 20-40% solution of the protective component to the fluidized particles of the powder component coated with the phospholipid component by spraying; drying said particles coated with the phospholipid component and the protective component.
- the thickness of the coating of the particles of the composition of powdered biologically active substances with the phospholipid component is 5 - 20% of the linear dimensions of the particles of the composition of powdered biologically active
- compositions of powdered biologically active substances, a phospholipid component, and a protective component in the liposomal composition ensures an increase in the bioavailability and stability of the physical, chemical, and biological properties of biologically active substances.
- a 2-15% aqueous emulsion of a phospholipid component is prepared for applying it to the fluidized particles of a powder component.
- the preparation of a 2-15% aqueous emulsion of a phospholipid component allows the use of phospholipid components with a high melting point for the preparation of a liposomal composition, which helps to increase the bioavailability and stability of the physical, chemical and biological properties of biologically active substances.
- the powder component is then prepared in such a way that its relative humidity is no more than 10%. This preparation helps to improve the uniformity of distribution of the phospholipid component over the surfaces of the particles of the powder active component.
- a 2-15% aqueous emulsion of the phospholipid component is applied to the fluidized particles of the powder component by spraying. This ensures the formation of a thin, uniform phospholipid coating on the surfaces of said particles.
- said particles coated with the phospholipid component are dried. This makes it possible to increase the stability of the physical, chemical and biological characteristics of the biologically active substances coated with the phospholipid component, due to the removal of excess moisture from the liposomal composition, provided by applying an aqueous emulsion of the phospholipid component to the particles of the powder component.
- a 20-40% solution of the protective component is applied to the fluidized particles of the powder component coated with the phospholipid component by spraying. This promotes the formation of a thin, uniform coating of the protective component on the surfaces of said particles.
- the said particles coated with the phospholipid component and the protective component are dried, which makes it possible to increase the stability of the physical, chemical and biological characteristics of the biologically active substances coated with the phospholipid component and the protective component during storage due to the removal of excess moisture from the liposomal composition, provided by applying a solution of the protective component to the particles coated with the phospholipid component.
- the coating thickness of the particles of the composition of powdered biologically active substances with a phospholipid component is 5 - 20% of the linear dimensions of the particles of the composition of powdered biologically active substances.
- Coating the particles of the composition of powdered biologically active substances with a phospholipid component improves the absorption and passage of biologically active substances through biological membranes, protects them from metabolism, improves the tissue distribution profile of biologically active substances, and also enhances their permeability into the cell. Changing the thickness of the coating of the phospholipid component of the said particles in the said range makes it possible to regulate the rate of release of biologically active substances of the liposomal composition.
- the thickness of the coating of the particles of the composition of powdered biologically active substances with a phospholipid component which is 5 - 20% of the linear dimensions of the particles of the composition of powdered biologically active substances, ensures an increase in the stability of the physical, chemical, biological properties and bioavailability of biologically active substances.
- the claimed method for producing a liposomal composition is characterized by high reproducibility of the process of producing the composition without strict fractional selection of particles by size.
- dry powder or dry granules of the liposomal composition are produced, which spontaneously forms liposomes (liposomal vesicles) upon hydration or contact with biological fluids in the body of a human or animal.
- the present liposomal composition is the most promising for commercial use.
- a 2-15% aqueous emulsion of a phospholipid component can be produced by mixing the phospholipid component with purified water at a temperature of 40-80°C.
- purified water to produce an aqueous emulsion of a phospholipid component eliminates the possibility of various bacteria and viruses entering the liposomal composition, ensuring the safety of using the liposomal composition.
- Mixing the phospholipid component with purified water at a temperature of 40-80°C makes it possible to produce a fluid heterogeneous emulsion with a phospholipid component homogeneously distributed in it, which ensures uniform distribution of the aqueous emulsion of the phospholipid component when it is sprayed onto the surfaces of particles. powder component.
- the uniform distribution of the phospholipid component over the surfaces of the particles of the powder component further enhances the bioavailability and stability of the physical, chemical and biological characteristics of biologically active substances.
- the powder component particles Before applying the powder component to the fluidized particles by spraying 2-15% of the aqueous emulsion of the phospholipid component, the powder component particles can be selected by passing them through a sieve with a hole diameter of no more than 500 ⁇ m. Selecting the powder component particles, the size of which is no more than 500 ⁇ m, makes it possible to increase the solubility of the composition of powdered biologically active substances during hydration or upon contact with biological fluids in the body of an animal or a human, which, accordingly, additionally increases the bioavailability of biologically active substances.
- a 2-15% aqueous emulsion of a phospholipid component is applied to fluidized particles of a powder component, the temperature of which can be 30-45°C, by spraying; the specified temperature range is determined by the thermal lability of the used composition of powdered biologically active substances.
- the temperature of the 2-15% aqueous emulsion of the phospholipid component can be 35-60°C.
- the aqueous emulsion of the phospholipid component is plastic and has fluidity, which allows it to be applied by spraying onto fluidized particles of the powder component.
- the spray rate can be varied from 300 ml/min to 1000 ml/min in such a way that with an increase in the mass of the powder component by 1 - 3 wt.%, the spray rate can be increased by 10 - 20%. This ensures uniform distribution of the phospholipid component and the protective component over the surfaces of the particles of the powder component, which helps to increase the stability of the physical, chemical and biological properties and increase the bioavailability of the biologically active substances of the liposomal composition.
- Spraying can be carried out in a direct flow. Direct flow spraying improves the uniformity of distribution of the phospholipid component and the protective component over the surfaces of the particles of the powder component, which additionally contributes to increasing the stability of the physical, chemical and biological properties and increasing the bioavailability of the biologically active substances of the liposomal composition. [00049] Spraying can be carried out through the nozzles of spray injectors.
- the nozzle diameter can be 0.2 - 1 mm, and the distance from the nozzle to the surface layer of the fluidized particles of the powder component can vary from 80 cm to 200 cm.
- Drying is carried out in such a way that the relative humidity of the liposomal composition may be no more than 10%. This makes it possible to increase the stability of the physical, chemical and biological characteristics of the biologically active substances contained in the liposomal composition.
- Drying is carried out by feeding compressed gas, the temperature of which can be 50 - 80°C, wherein compressed air can be used as the compressed gas.
- compressed gas the temperature of which can be 50 - 80°C, wherein compressed air can be used as the compressed gas.
- the water contained in the phospholipid coating and protective coating evaporates, and the specified coatings of the particles of the powder component harden and are fixed on the specified particles.
- a 20-40% solution of the protective component can be prepared by mixing the protective component with purified water, ensuring the component dissolves in water.
- the use of purified water to prepare the solution of the protective component eliminates the possibility of various bacteria and viruses entering the liposomal composition, ensuring the safety of using the liposomal composition.
- Mixing the protective component with purified water allows for the preparation of a homogeneous solution, which additionally ensures the uniformity of the distribution of the solution of the protective component when spraying it on the particles of the powder component coated with the phospholipid component. This is necessary to form a protective layer against mechanical damage and against the effects of the environment of the particles of the powder component coated with the phospholipid component.
- a powdered anti-caking component may be used in the liposomal composition. This allows maintaining the flowability of the liposomal composition and preventing its clumping and sticking together.
- the technical result is also achieved by a method of using a liposomal composition, according to which the liposomal composition is manufactured according to the method described above; the liposomal composition is encapsulated and/or tabletted, and/or a powder is manufactured from the liposomal composition to obtain a suspension from the said composition for oral use.
- This ensures the convenience of using the liposomal composition, which spontaneously forms liposomes (liposomal vesicles) upon hydration or contact with biological fluids.
- the claimed liposomal composition contains a composition of powdered biologically active substances, a phospholipid component, protective component with the following ratio of components to the total weight of the composition, wt.%: composition of powdered biologically active substances 80 - 95; phospholipid component 2 - 15; protective component 3 - 10.
- composition of powdered biologically active substances is an important component of the liposomal composition, said composition is necessary for the body to receive the necessary set of nutrients to maintain its vital functions.
- Biologically active substances preferably have pharmaceutical, nutraceutical, dietary and/or therapeutic and prophylactic activity.
- Vitamins, minerals and other substances with nutritional and/or physiological activity including essential amino acids, branched amino acids, peptides, plant extracts (e.g. flavonoids, waxes, polyphenols) can be used as biologically active substances having pharmaceutical, nutraceutical, dietary and/or therapeutic and prophylactic activity.
- a phospholipid component in a liposomal composition is due to a number of reasons: it is non-toxic, therefore, it does not have a negative effect on a living organism; the phospholipid component is biodegradable, does not cause allergic reactions when entering a living organism.
- the main advantage of using a phospholipid component in a liposomal composition is its ability to emulsify and disperse upon hydration or upon contact with biological fluids in a human or animal body to form liposomes. This feature of the phospholipid component, which has a high affinity for cell membranes due to its structure and composition, allows for the delivery of substances contained within the phospholipid component directly into the cell.
- Soy lecithin and/or egg lecithin and/or sunflower lecithin and/or phosphatidylcholine and/or phosphatidic acid and/or phosphatidylglycerol and/or phosphatidylethanolamine and/or phosphatidylinosine and/or phosphatidylserine and/or plasmalogens and/or sphingomyelin can be used as a phospholipid component in the liposomal composition.
- Soy lecithin is the most economical, safe and stable phospholipid component from a production point of view.
- a protective component is necessary for the formation of a protective layer of particles of the composition of powdered biologically active substances coated with a phospholipid component, thereby protecting the phospholipid coating.
- the said particles from environmental influences, including air oxidation, and from mechanical damage, for example, during transportation.
- a plant resin or monosaccharide, or disaccharide, or polysaccharide can be used as a protective component.
- Gum arabic, locust bean gum, carrageenan are preferably used as a plant resin.
- Ribose, glucose, mannose, galactose are preferably used as a monosaccharide.
- Palatinose, lactose are preferably used as a disaccharide.
- Maltodextrin, inulin, methylcellulose are preferably used as a polysaccharide.
- a combination of a composition of powdered biologically active substances, a phospholipid component, and a protective component in a liposomal composition with the following ratio of components to the total weight of the composition, wt.%: composition of powdered biologically active substances 80-95; phospholipid component 2-15; protective component 3-10, provides increased bioavailability and stability of the physical, chemical, and biological properties of the biologically active substances.
- the coating thickness of the particles of the composition of powdered biologically active substances with the phospholipid component is 5 - 20% of the linear dimensions of the particles of the composition of powdered biologically active substances. If the coating thickness of the particles of the composition of powdered biologically active substances with the phospholipid component is less than 5%, then the encapsulating capacity of the liposomes formed from the liposomal composition decreases, and the bioavailability of the biologically active substances deteriorates. If the coating thickness of the particles of the composition of powdered biologically active substances with the phospholipid component is more than 20%, then the resulting thick phospholipid shell prevents the hydration of the particles of the liposomal composition.
- the coating thickness of the particles of the composition of powdered biologically active substances with a phospholipid component which is 5 - 20% of the linear dimensions of the particles of the composition of powdered biologically active substances, improves the absorption and passage of biologically active substances through biological membranes, protects them from metabolism, improves the tissue distribution profile of biologically active substances, and also enhances their permeability into the cell. Changing the coating thickness with a phospholipid component in the specified range allows you to regulate the rate of release of biologically active substances.
- Coating thickness of particles the composition of powdered biologically active substances with a phospholipid component which is 5-20% of the linear dimensions of the particles of the composition of powdered biologically active substances, provides for an increase in the stability of the physical, chemical, biological properties and bioavailability of biologically active substances.
- the coating of the particles of the composition of powdered biologically active substances with a phospholipid component in the specified thickness range performs a protective function of the said particles until the particles of the said composition, coated with a phospholipid component, reach the less aggressive environment of the small intestine, in which liposomes are formed from the liposomal composition with a minimal risk of destruction under the influence of the environment of a living organism, allowing the biologically active substances contained therein to be delivered directly into the cell.
- the thickness of the coating with a protective component of the particles of the composition of powdered biologically active substances, coated with a phospholipid component preferably is 5-20% of the linear dimensions of the particles of the composition of powdered biologically active substances. This allows maintaining improved bioavailability and stability of the physical, chemical and biological properties of biologically active substances.
- the relative humidity of the liposomal composition is no more than 10%. If the relative humidity of the liposomal composition is more than 10%, then the excess humidity of the composition leads to its accelerated deterioration, i.e. the stability of the physical, chemical and biological characteristics of the biologically active substances contained in the liposomal composition decreases, and the excess humidity of the composition leads to the adhesion and clumping of its particles, which makes it impossible to accurately dose the liposomal composition when it is placed, for example, in capsules or sachets.
- the relative humidity of the liposomal composition which is no more than 10%, makes it possible to increase the stability of the physical, chemical and biological characteristics of the biologically active substances contained in the liposomal composition, and also ensures accurate dosing of the liposomal composition when it is placed, for example, in capsules or sachets.
- the particle size of the composition of powdered biologically active substances may be less than 50 ⁇ m, 50 - 500 ⁇ m or more than 500 ⁇ m. If the particle size of the composition of powdered biologically active substances is less than 50 ⁇ m, the risk of adverse reactions in the body increases. of a person or an animal to orally administered biologically active substances. If the particle size of the composition of powdered biologically active substances is greater than 500 ⁇ m, then the area of the active surface of the particles of the composition of said substances decreases, which leads to a decrease in the bioavailability of the biologically active substances of the liposomal composition.
- the particle size of the composition of powdered biologically active substances is preferably 50 - 500 ⁇ m, this helps to increase the solubility of the composition of powdered biologically active substances during hydration or upon contact with biological fluids in the body of an animal or a person, which, accordingly, additionally increases the bioavailability of biologically active substances without the risk of adverse reactions to them.
- Hydrophilic biologically active substances or lipophilic biologically active substances, or a mixture thereof may be used as biologically active substances in the liposomal composition. This allows for improving the bioavailability and stability of the physical, chemical and biological properties of not only hydrophilic biologically active substances, but also lipophilic biologically active substances.
- the percentage ratio of the masses of hydrophilic and lipophilic biologically active substances to the total mass of lipophilic and hydrophilic biologically active substances may be 90:10 - 70:30.
- a powdered anti-caking component may be used in the liposomal composition.
- the powdered anti-caking component is used in the liposomal composition in an amount of 1-5 wt.% of the total weight of the composition.
- Silicon dioxide and/or calcium orthophosphate and/or calcium stearate may be used as the anti-caking component. This allows maintaining the flowability of the liposomal composition, preventing its clumping and sticking.
- the particle size of the powdered anti-caking component may be 50-500 ⁇ m.
- Example 1 A composition of powdered biologically active substances, phospholipid and protective components are used to produce a liposomal composition.
- the composition of powdered biologically active substances contains mixture A, including powdered choline bitartrate, uridine 5- monophosphate and policosanol, wherein the percentage ratio of the masses of powdered choline bitartrate, uridine 5-monophosphate, policosanol from the total mass of the composition of powdered biologically active substances is 53: 30: 17.
- Soy lecithin is used as a phospholipid component.
- a plant resin, more specifically, gum arabic, is used as a protective component.
- the ratio of the components of the liposomal composition to the total mass of the composition is given in Table 1.
- Example 2 The same components as in Example 1 are used for the production of the liposomal composition, with the exception of the mixture contained in the composition of powdered biologically active substances.
- the composition of powdered biologically active substances contains mixture B, including powdered ascorbic acid, calcium ascorbate, ascorbyl palmitate, wherein the percentage ratio of the masses of powdered ascorbic acid, calcium ascorbate, ascorbyl palmitate from the total mass of the composition of powdered biologically active substances is 38: 32: 30.
- the ratio of the components of the liposomal composition to the total mass of the composition is given in Table 1.
- Example 3 The same components as in Example 1 are used for the production of the liposomal composition, with the exception of the mixture contained in the composition of powdered biologically active substances.
- the composition of powdered biologically active substances contains mixture C, including powdered amino acids L-tryptophan, 5-hydroxytryptophan and saffron extract, wherein the percentage ratio of the masses of the powdered amino acids L-tryptophan, 5-hydroxytryptophan and saffron extract from the total mass of the composition of powdered biologically active substances is 61: 30: 9.
- the ratio of the components of the liposomal composition to the total mass of the composition is given in Table 1.
- Example 4 The liposomal composition is prepared using the same components as in Example 1, with the exception of the mixture contained in the composition of powdered biologically active substances.
- the composition of powdered biologically active substances contains mixture D, including powdered amino acids y-aminobutyric acid, L-theanine and a complex of B vitamins (B3, B2, B6), lavender extract, wherein the percentage ratio of the masses of powdered y-aminobutyric acid, L-theanine, a complex of B vitamins (B3, B2, B6), lavender extract from the total mass of the composition of powdered biologically active substances is 56: 29: 1: 14.
- the ratio of the components of the liposomal composition to the total mass of the composition is given in Table 1. Table 1
- compositions and quantity of components of the liposomal composition Composition and quantity of components of the liposomal composition
- the coating thickness of the particles of the composition of powdered biologically active substances with a phospholipid component is 5-20% of the linear dimensions of the particles of the composition of powdered biologically active substances, and the relative humidity of the liposomal composition is no more than 10%.
- the claimed liposomal composition is a dry powder or dry granules, which, upon hydration or contact with biological fluids in the body of a human or animal, spontaneously forms liposomes (liposomal vesicles).
- the present liposomal composition is the most promising for commercial use.
- liposomes during hydration of the present liposomal composition is assessed, for example, by light microscopy in dark or phase-contrast modes.
- a 20-50 mg portion of the present liposomal composition is dissolved in distilled water, the volume of which is 1-2 ml, and slight shaking of the resulting suspension is allowed during dissolution.
- the suspension is centrifuged at a speed that does not exceed 2000 rpm.
- the size of liposomes formed from liposomal compositions, the composition of which is described in examples 1-4, is 0.2-25 ⁇ m.
- a method is described for producing a liposomal composition containing a powder component, a phospholipid component, and a protective component, where a composition of powdered biologically active substances is used as the powder component.
- the combination of a composition of powdered biologically active substances, a phospholipid component, and a protective component in a liposomal composition provides for increased bioavailability and stability of the physical, chemical, and biological properties of biologically active substances.
- the liposomal composition preferably contains a composition of powdered biologically active substances, a phospholipid component, and a protective component in the following ratio of components to the total weight of the composition, wt.%: composition of powdered biologically active substances 80-95; phospholipid component 2
- a 15% aqueous emulsion of a phospholipid component for applying it to the fluidized particles of the powder component.
- concentration of the aqueous emulsion of the phospholipid component allows regulating the coating thickness of the particles of the powder component with the phospholipid component in the range of 5 - 20% of the linear dimensions of the particles of the powder component, where a composition of powdered biologically active substances is used as the powder component.
- the production of a 2 - 15% aqueous emulsion of the phospholipid component allows using phospholipid components with a high melting point for the production of a liposomal composition, this contributes to an increase in the bioavailability and stability of the physical, chemical and biological properties of biologically active substances.
- the powder component is prepared in such a way that its relative humidity is no more than 10%. This is necessary so that the excess moisture contained in the powder active component does not interfere with the subsequent described technological stages of producing the liposomal composition. For example, excess moisture contained in the powder component prevents the uniform application of the phospholipid component to the particles of the powder component, which, accordingly, leads to a deterioration in the bioavailability and stability of the physical, chemical and biological properties of biologically active substances.
- the said preparation of the powder component in which its relative humidity is no more than 10%, helps to improve the uniformity of distribution of the phospholipid component over the surfaces of the particles of the powder component.
- a 2-15% aqueous emulsion of the phospholipid component is applied to the fluidized particles of the powder component by spraying.
- the spraying pressure is preferably 0.1-0.5 MPa.
- the application of said aqueous emulsion to the fluidized particles of the powder component is carried out in a sealed vessel, for example, in a container.
- the loading volume of the powder component in the sealed vessel is from 15% to 90% of the nominal capacity of the vessel.
- Application of a 2-15% aqueous emulsion of the phospholipid component to the fluidized particles of the powder component by spraying ensures the formation of a thin, uniform phospholipid coating on the surfaces of said particles.
- the application of a coating of the phospholipid component to the surfaces of the particles of the composition of powdered biologically active substances can be carried out by spraying from below or by spraying from above in a fluidized bed.
- Application of a phospholipid coating by spraying from above reduces the efficiency of coating the particles of the composition of powdered biologically active substances, since when spraying from above, the particles interact with each other, which initiates agglomeration of the particles and their granulation, and when spraying from below, encapsulation (coating) of individual particles occurs, eliminating their adhesion.
- said particles coated with the phospholipid component are dried. This makes it possible to increase the stability of the physical, chemical and biological characteristics of the biologically active substances coated with the phospholipid component, for example, during storage, due to the removal of excess moisture from them, provided by applying an aqueous emulsion of the phospholipid component to the particles of the powder component.
- a 20-40% solution of the protective component is prepared, which allows the said solution to be sprayed onto particles coated with the phospholipid component for its uniform distribution over the surfaces of said particles.
- the said concentration of the aqueous emulsion of the phospholipid component allows the thickness of the coating of said particles with the protective component to be adjusted in a range that preferably amounts to 5-20% of the linear dimensions of the particles of the powder component.
- a 20-40% solution of the protective component is applied to the fluidized particles of the powder component coated with the phospholipid component by spraying. This promotes the formation of a thin, uniform coating of the protective component on the surfaces of said particles.
- the coating of the protective component can be applied to the surfaces of the particles of the composition of powdered biologically active substances coated with the phospholipid component by spraying from below or by spraying from above in a fluidized bed. Applying the protective coating by spraying from above reduces the efficiency of coating said particles, since when spraying from above, the particles interact with each other, which initiates agglomeration of the particles and their granulation, and when spraying from below, encapsulation (coating) of individual particles occurs, eliminating their adhesion. In this regard, it is preferable to apply the protective coating by spraying from below.
- said particles coated with a phospholipid component and a protective component are dried, which makes it possible to increase the stability of the physical, chemical and biological characteristics of the biologically active substances coated with a phospholipid component and a protective component, for example, during storage, due to the removal of excess moisture from the liposomal composition, provided by applying a solution of the protective component to the particles coated with a phospholipid component.
- the coating thickness of the particles of the composition of powdered biologically active substances with a phospholipid component is 5 - 20% of the linear dimensions of the particles of the composition of powdered biologically active substances. If the coating thickness of the particles of the composition of powdered biologically active substances with a phospholipid component is less than 5%, then the encapsulating capacity of the liposomes formed from the liposomal composition decreases, and the bioavailability of the biologically active substances worsens. If the coating thickness of the particles of the composition of powdered biologically active substances with a phospholipid component is more than 20%, then the resulting thick phospholipid shell prevents the hydration of the particles of the liposomal composition.
- the coating thickness of the particles of the composition of powdered biologically active substances with a phospholipid component which is 5 - 20% of the linear dimensions of the particles of the composition of powdered biologically active substances, provides improved absorption and passage of biologically active substances through biological membranes, protects them from metabolism, improves the tissue distribution profile of biologically active substances, and also enhances their permeability into the cell. Changing the thickness of the coating with the phospholipid component in the specified range makes it possible to regulate the rate of release of biologically active substances.
- the thickness of the coating of the particles of the composition of powdered biologically active substances with the phospholipid component which is 5 - 20% of the linear dimensions of the particles of the composition of powdered biologically active substances, ensures an increase in the stability of the physical, chemical, biological properties and bioavailability of biologically active substances.
- the claimed method for producing a liposomal composition is characterized by high reproducibility of the process for producing the composition without strict fractional selection of particles by size.
- dry powder or dry granules of the liposomal composition are produced, which spontaneously forms liposomes upon hydration or contact with biological fluids in the body of a human or animal.
- the present liposomal composition is the most promising for commercial use.
- a 2-15% aqueous emulsion of a phospholipid component can be produced by mixing the phospholipid component with water at a temperature of 20-35°C, 40-80°C, or more than 80°C. If the phospholipid component is mixed with water at a temperature of less than 40°C, the phospholipid component does not form a homogeneous emulsion, which leads to an uneven distribution of the aqueous emulsion of the phospholipid component over the surfaces of the particles of the powder component.
- a 2-15% aqueous emulsion of the phospholipid component is prepared by mixing the phospholipid component with purified water at a temperature of 40-80°C, with only short-term heating to a temperature of 80°C possible.
- the mixing speed of the purified water and the phospholipid component is preferably 60-80 rpm, where mixing can be carried out using paddle mixers.
- purified water for the preparation of an aqueous emulsion of the phospholipid component eliminates the entry of various bacteria and viruses into the liposomal composition, ensuring the safety of using the liposomal composition.
- Mixing the phospholipid component with purified water at a temperature of 40 - 80°C allows for the production of a fluid heterogeneous emulsion with the phospholipid component homogeneously distributed in it, which ensures uniform distribution of the aqueous emulsion of the phospholipid component when it is applied to the surfaces of the particles of the powder component.
- the powder component particles Before applying the powder component to the fluidized particles by spraying 2-15% of the aqueous emulsion of the phospholipid component, the powder component particles can be selected by passing them through a sieve. It is preferable to use a sieve with a hole diameter of no more than 500 ⁇ m. If the size of the powder component particles is greater than 500 ⁇ m, the active surface area of the powder component particles decreases, which leads to a decrease in the bioavailability of the powder components of the liposomal composition, namely, the composition of powdered biologically active substances.
- a 2-15% aqueous emulsion of the phospholipid component is applied to the fluidized particles of the powder component, the temperature of which can be 30-45°C, by spraying; the said temperature range is due to the thermal lability of the applied composition of powdered biologically active substances; this additionally contributes to increasing the stability of the physical, chemical and biological properties and increasing the bioavailability of biologically active substances of the liposomal composition.
- the temperature of the 2-15% aqueous emulsion of the phospholipid component is preferably 35-60°C.
- the said temperature range of the aqueous emulsion of the phospholipid component is due to the fact that in this temperature range the emulsion is plastic and has fluidity, which allows it to be applied by spraying onto fluidized particles of the powder component.
- the spray rate can be changed from 300 ml/min to 1000 ml/min in such a way that with an increase in the mass of the powder component by 1 - 3 wt.%, the spray rate can be increased by 10 - 20%. This ensures uniform distribution of the phospholipid component and the protective component over the surfaces of the particles of the powder component, which helps to increase the stability of the physical, chemical and biological properties and increase the bioavailability of the biologically active substances of the liposomal composition.
- Spraying can be carried out in a straight line or tangentially.
- tangential spraying has low efficiency, leading to uneven distribution of the emulsion and solution over the surfaces of the particles of the powder component, in addition, tangential spraying leads to a loss of part of the sprayed substance, which increases production costs.
- Spraying is preferably carried out in a straight line.
- Straight line spraying means spraying substances in an ascending flow of particles of the powder component, i.e., drops of the sprayed substance and the particles of the powder component move in parallel.
- Straight line spraying improves the uniformity of distribution of the phospholipid component and the protective component over the surfaces of the particles of the powder component, namely, the composition of powdered biologically active substances.
- spraying is carried out through nozzles of spray injectors, wherein the number of nozzles can be 1 - 5.
- the number of nozzles can be 1 - 5.
- This allows for adjusting the spraying rate of the aqueous emulsion of the phospholipid component and the solution of the protective component and the thickness of the phospholipid coating and the protective coating of the particles of the powder component, and also ensures the constancy of the spray angle and the droplet size of the aqueous emulsion of the phospholipid component and the solution of the protective component.
- the constancy of the spray angle and the droplet size of the aqueous emulsion of the phospholipid component and the solution of the protective component ensures the reproducibility of the manufacture of the liposomal composition.
- the nozzle diameter can be 0.2 - 1 mm, and the distance from the nozzle to the surface layer of fluidized particles of the powder component can vary from 80 cm to 200 cm.
- the relative humidity of the liposomal composition is preferably no more than 10%. If the relative humidity of the liposomal composition is more than 10%, then the excess humidity of the composition leads to its accelerated deterioration, i.e. the stability of the physical, chemical and biological characteristics of the biologically active substances contained in the liposomal composition decreases, and the excess humidity of the composition leads to the adhesion and clumping of its particles, which makes it impossible to accurately dose the liposomal composition when it is placed, for example, in capsules or sachets.
- the relative humidity of the liposomal composition which is no more than 10%, makes it possible to increase the stability of the physical, chemical and biological characteristics of the biologically active substances contained in the liposomal composition, and also ensures accurate dosing of the liposomal composition when it is placed, for example, in capsules or sachets.
- Drying is carried out by feeding compressed gas, the temperature of which is preferably 50 - 80°C.
- the volumetric flow rate of the compressed gas can be 2000 - 4000 m3 /h.
- Compressed air can be used as the compressed gas.
- the water contained in the phospholipid coating and the protective coating evaporates, and the specified coatings of the particles of the powder component harden and are fixed on the specified particles.
- a 20-40% solution of the protective component can be prepared by mixing the protective component with water, ensuring the dissolution of the component in water.
- a 20-40% solution of the protective component is prepared by mixing the protective component with purified water.
- the use of purified water to prepare the solution of the protective component eliminates the possibility of various bacteria and viruses entering the liposomal composition, ensuring the safety of using the liposomal composition.
- Mixing the protective component with purified water allows for the preparation of a homogeneous solution containing the protective component and water, which additionally ensures uniform distribution of the solution of the protective component when sprayed on the surfaces of the particles of the powder component coated with the phospholipid component.
- a powdered anti-caking component may be used in the liposomal composition.
- the powdered anti-caking component is used in an amount of 1 - 5 wt.% of the total weight of the liposomal composition.
- a powdered anti-caking component is additionally added to it to impart flowability to the composition of powdered biologically active substances.
- the powdered anti-caking component is added to particles of the powdered component coated with phospholipid and protective components. This makes it possible to impart flowability to the particles of the liposomal composition and prevent their sticking together on the process equipment.
- the method for using a liposomal composition consists in producing a liposomal composition according to the method described above; encapsulating and/or tabletting the liposomal composition, and/or producing a powder from the liposomal composition to obtain a suspension from said composition for oral use.
- the liposomal composition is preferably encapsulated in gelatin and/or cellulose capsules. This ensures ease of use of the liposomal composition, which spontaneously forms liposomes (liposomal vesicles) upon hydration or contact with biological fluids.
- the developed composition of the liposomal composition ensure an increase in the bioavailability and stability of the physical, chemical and biological properties of biologically active substances.
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Abstract
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| MDA20250057A MD20250057A2 (ru) | 2023-06-15 | 2024-06-13 | Липосомальная композиция, способ её получения и применения |
| CN202480039788.9A CN121419763A (zh) | 2023-06-15 | 2024-06-13 | 一种脂质体组合物及其制备和应用方法 |
| KR1020257041885A KR20260039659A (ko) | 2023-06-15 | 2024-06-13 | 리포솜 조성물, 그 제조 방법 및 용도 |
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| RU2605616C1 (ru) * | 2015-11-27 | 2016-12-27 | Закрытое акционерное общество "Институт экспериментальной фармакологии" | Липосомальное средство на основе убихинола и способ его получения |
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| RU2605616C1 (ru) * | 2015-11-27 | 2016-12-27 | Закрытое акционерное общество "Институт экспериментальной фармакологии" | Липосомальное средство на основе убихинола и способ его получения |
Non-Patent Citations (4)
| Title |
|---|
| GESZKE-MORITZ M. ET AL.: "Solid lipid nanoparticles as attractive drug vehicles: Composition, properties and therapeutic strategies", MATERIALS SCIENCE AND ENGINEERING: C, vol. 68, 2016, pages 982 - 994, XP029684650, DOI: 10.1016/j.msec.2016.05.119 * |
| MANEA ANA-MARIA, ANDRONESCU CORINA, MEGHEA AURELIA: "GREEN TEA EXTRACT LOADED INTO SOLID LIPID NANOPARTICLES", SCIENTIFIC BULLETIN UNIVERSITY POLITEHNICA OF BUCHAREST.SERIES B, CHEMISTRY AND MATERIALS SCIENCE, UNIVERSITY POLITECHNICA OF BUCHAREST, BUCHAREST, RO, vol. 76, no. 2, 1 January 2014 (2014-01-01), RO , pages 125 - 136, XP093255427, ISSN: 1454-2331 * |
| MARINA N. SHKOLNIKOVA, ELENA V. VORONOVA: "Mikrokapsulirovanie polifenolov kak sposob povysheniya ikh biodostupnosti v sostave pishchevykh sistem: obzor sovemennykh tekhnology [Polyphenols Microencapsulation as a Way to Increase Their Bioavailability in Food Systems: Modern Technologies Overview]", INDUSTRIYA PITANIYA, vol. 6, no. 2, 1 January 2021 (2021-01-01), pages 90 - 98, XP009559871, ISSN: 2500-1922, DOI: 10.29141/2500-1922-2021-6-2-11 * |
| TAORAN WANG ET AL.: "Development of ''all natural '' layer-by-layer redispersible solid lipid nanoparticles by nano spray drying technology", EUROPEAN JOURNAL OF PHARMACEUTICS AND BIOPHARMACEUTICS, vol. 107, 2016, pages 273 - 285, XP029720458, DOI: 10.1016/j.ejpb.2016.07.022 * |
Also Published As
| Publication number | Publication date |
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| KR20260039659A (ko) | 2026-03-20 |
| CN121419763A (zh) | 2026-01-27 |
| GEAP202516761A (en) | 2025-06-25 |
| MD20250057A2 (ru) | 2026-04-30 |
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