WO2022045823A1 - 생분해성 고분자 분산체, 이를 포함하는 조성물 및 피부 개선용 시스템 - Google Patents
생분해성 고분자 분산체, 이를 포함하는 조성물 및 피부 개선용 시스템 Download PDFInfo
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- WO2022045823A1 WO2022045823A1 PCT/KR2021/011507 KR2021011507W WO2022045823A1 WO 2022045823 A1 WO2022045823 A1 WO 2022045823A1 KR 2021011507 W KR2021011507 W KR 2021011507W WO 2022045823 A1 WO2022045823 A1 WO 2022045823A1
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- lactic acid
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/86—Polyethers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/0241—Containing particulates characterized by their shape and/or structure
- A61K8/025—Explicitly spheroidal or spherical shape
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/73—Polysaccharides
- A61K8/735—Mucopolysaccharides, e.g. hyaluronic acid; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/85—Polyesters
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/90—Block copolymers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/41—Particular ingredients further characterized by their size
- A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/41—Particular ingredients further characterized by their size
- A61K2800/413—Nanosized, i.e. having sizes below 100 nm
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/59—Mixtures
- A61K2800/594—Mixtures of polymers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/60—Particulates further characterized by their structure or composition
- A61K2800/65—Characterized by the composition of the particulate/core
- A61K2800/654—The particulate/core comprising macromolecular material
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/80—Process related aspects concerning the preparation of the cosmetic composition or the storage or application thereof
- A61K2800/87—Application Devices; Containers; Packaging
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/74—Synthetic polymeric materials
- A61K31/765—Polymers containing oxygen
Definitions
- the present invention relates to a biodegradable polymer dispersion, a composition comprising the same, and a system for improving skin.
- the skin consists of epidermis, dermis and subcutaneous tissue.
- the dermis is a layer between the epidermis and subcutaneous tissue, and contains blood vessels, collagen, elastin fibers, pores, pilaris, sebaceous glands, sweat glands, various sensory nerves, fibroblasts, and macrophages, which are absent in the epidermis, and occupies the largest portion of the skin. do.
- the active ingredient active ingredient
- nanoparticles such as liposomes, cationic polymers, quantum dots, magnetic particles or gold nanoparticles have been studied, and these delivery systems are designed to promote absorption into cells.
- liposomes they have the advantage of being easily designed to have targeting performance as a physical self-assembly, but the colloidal stability of the delivery system is poor, and mainly depends on the delivery of active ingredients by diffusion in the skin barrier layer.
- a cationic polymer, quantum dots, gold nanoparticles, etc. are used, some cytotoxicity exists, effective delivery of an active material is not easy, and the delivery system does not have biodegradability.
- Patent Document 1 Korean Patent Publication No. 10-2019-0095088 (2019.08.19.)
- An object of the present invention is to provide a lactic acid-based polymer and a composition comprising the same, specifically, a block copolymer (PEG-PLA) containing lactic acid and polyethylene glycol positioned on the surface of lactic acid-based polymer particles and a hyaluronic acid mixture. It is intended to provide a biodegradable polymer dispersion having physiological activity by penetrating into the skin by itself. In addition, it is to provide a composition comprising a biodegradable polymer dispersion capable of effective delivery of the active ingredient to the deep skin by including the active ingredient inside the lactic acid-based polymer particles.
- PEG-PLA block copolymer
- Another object of the present invention is to provide a skin improvement system including the biodegradable polymer dispersion and a plasma device so as to enhance skin absorption of active ingredients.
- the present invention for achieving the above object is characterized in that it is a biodegradable polymer dispersion comprising a lactic acid-based polymer, a block copolymer containing a lactic acid-based polymer and polyethylene glycol, and a hyaluronic acid mixture.
- the biodegradable polymer dispersion may be spherical particles having an average particle size of 0.01 to 30 ⁇ m.
- the lactic acid-based polymer may have a weight average molecular weight of 10,000 to 1,000,000 g/mol.
- the block copolymer containing the lactic acid-based polymer and polyethylene glycol may have a weight average molecular weight of 2,000 to 60,000 g/mol.
- the weight ratio of the lactic acid-based polymer to the block copolymer containing the lactic acid-based polymer and polyethylene glycol may be 1:1 to 20:1.
- the hyaluronic acid mixture may include hyaluronic acid, ammonium-substituted hyaluronic acid, and a hyaluronic acid oligomer having a weight average molecular weight of less than 8,000 g/mol.
- hyaluronic acid 50 to 90% by weight of high molecular weight hyaluronic acid, 1 to 10% by weight of ammonium substituted hyaluronic acid, and 10 to 35% by weight of hyaluronic acid oligomer based on the total weight of the hyaluronic acid mixture.
- the weight ratio of the hyaluronic acid mixture to the lactic acid-based polymer may be 1:3 to 1:20.
- the block copolymer (PEG-PLA) containing the lactic acid-based polymer and polyethylene glycol may be positioned on the surface of the particles including the lactic acid-based polymer.
- Another aspect of the present invention is a cosmetic composition comprising the biodegradable polymer dispersion.
- Another aspect of the present invention is characterized in that it is a composition for external application for skin including the biodegradable polymer dispersion.
- Another aspect of the present invention is characterized in that the pharmaceutical composition comprising the biodegradable polymer dispersion.
- the biodegradable polymer dispersion may include an active ingredient inside the particles including the lactic acid-based polymer.
- Another aspect of the present invention is characterized in that it is a skin improvement system comprising the biodegradable polymer dispersion and a plasma device.
- the biodegradable polymer dispersion according to the present invention is a dispersion of lactic acid-based polymer in the form of particles in which a block copolymer (PEG-PLA) containing a lactic acid-based polymer and polyethylene glycol is positioned on the surface in an aqueous phase containing a hyaluronic acid mixture.
- PEG-PLA block copolymer
- a lactic acid-based polymer and polyethylene glycol is positioned on the surface in an aqueous phase containing a hyaluronic acid mixture.
- the biodegradable polymer dispersion according to the present invention can effectively deliver the active ingredient through the skin or other barriers.
- the active ingredient may include both hydrophilic and hydrophobic active ingredients, and thus has the advantage of implementing excellent physiological activity and therapeutic or improvement effects.
- by further including the active ingredient in the lactic acid-based polymer particles of the biodegradable polymer dispersion it is possible to control the sustained release of the active ingredient.
- the biodegradable polymer dispersion according to the present invention has an excellent skin improvement effect by further improving the physiological activity effect and skin penetration by the plasma device.
- Example 1 is a schematic diagram showing a biodegradable polymer dispersion according to Example 1 of the present invention.
- FIG. 19 is a graph showing the cytotoxicity of the biodegradable polymer dispersions according to Examples 1 and 4 of the present invention in human dermal fibroblasts.
- FIG. 20 is a graph evaluating the procollagen synthesis ability before and after plasma treatment in human dermal fibroblasts of the biodegradable polymer dispersions according to Examples 1 and 4 of the present invention.
- 21 is a graph evaluating the MMP-1 inhibitory ability of the biodegradable polymer dispersions according to Examples 1 and 4 of the present invention before and after plasma treatment in human dermal fibroblasts.
- FIG. 22 is a graph evaluating the elastase inhibition rate before and after plasma treatment in human dermal fibroblasts of the biodegradable polymer dispersions according to Examples 1 and 4 of the present invention.
- 23A is an image showing the collagen expression level before and after plasma treatment in human dermal fibroblasts of the biodegradable polymer dispersion according to Examples 1 and 4 of the present invention.
- 23B is an image showing the elastin expression level before and after plasma treatment in human dermal fibroblasts of the biodegradable polymer dispersion according to Examples 1 and 4 of the present invention.
- 'lactic acid-based polymer particles' used in the present invention has the same meaning as 'particulates containing lactic acid-based polymer'.
- 'PEG-PLA block copolymer' used in the present invention is used as a more specific meaning of 'block copolymer containing lactic acid polymer and polyethylene glycol'.
- composition' used in the present invention is used in the sense of including 'cosmetic composition', 'composition for external application for skin' or 'pharmaceutical composition'.
- 'dispersion' used in the present invention means 'a dispersion formed in an aqueous phase,' and is used to include a 'biodegradable polymer dispersion'.
- the present invention for achieving the above object provides a biodegradable polymer dispersion, a composition comprising the same, and a system for improving skin.
- the present inventors have deepened research on a delivery system that has excellent physiological activity, has excellent penetration into the skin barrier, enables effective skin improvement or treatment, and has no toxicity in vivo. Accordingly, through a biodegradable polymer dispersion containing a lactic acid-based polymer, a lactic acid-based polymer and a block copolymer (PEG-PLA block copolymer) containing polyethylene glycol, and a hyaluronic acid mixture, the above effects can be realized was confirmed and the present invention was completed.
- PEG-PLA block copolymer PEG-PLA block copolymer
- biodegradable polymer dispersion according to the present invention will be described in detail.
- the biodegradable polymer dispersion according to an aspect of the present invention may include a lactic acid-based polymer, a block copolymer containing a lactic acid-based polymer and polyethylene glycol, and a mixture of hyaluronic acid.
- the lactic acid-based polymer means a polymer including lactic acid as a structural unit, and the lactic acid may be L-lactic acid, D-lactic acid, or a combination thereof.
- the lactic acid unit may include 50 mol% or more with respect to 100 mol% of all monomer components constituting the lactic acid-based polymer, specifically 60 mol% or more, and more specifically 70 mol% or more may be, but is not limited thereto.
- the lactic acid-based polymer may include poly(lactic acid), PLA), poly(lactic-co-glycolic acid), PLGA, or the like, preferably polylactic acid. (Poly(lactic acid), PLA).
- the lactic acid-based polymer may have a weight average molecular weight of 10,000 to 1,000,000 g/mol, specifically 13,000 to 500,000 g/mol, and more specifically, 15,000 to 250,000 g/mol.
- the block copolymer containing the lactic acid polymer and polyethylene glycol may mean a polymer including a lactic acid polymer and a polyethylene glycol unit, and specifically, a double block copolymer of a lactic acid polymer and polyethylene glycol (PEG-PLA). block copolymer).
- the lactic acid-based polymer may have hydrophobic properties
- polyethylene glycol may have hydrophilic properties, and may have amphiphilic properties.
- the lactic acid polymer may be a polymer of a monomer selected from the group consisting of L-lactic acid, D-lactic acid and L,D-lactic acid, and a weight average molecular weight of 1,000 to It may be 40,000 g/mol, specifically 1,500 to 30,000 g/mol.
- the block copolymer may have a weight average molecular weight of 2,000 to 60,000 g/mol, and polyethylene glycol in the block copolymer may have a weight average molecular weight of 1,000 to 20,000 g/mol, specifically 3,000 to 15,000 g It may be /mol, but is not limited thereto.
- the weight ratio of the lactic acid-based polymer block to the polyethylene glycol block may be 95: 5 to 50: 50, specifically 90: 10 to 70: 30, and more specifically 90: 10 to 80: 20.
- the block copolymer containing the lactic acid polymer, the lactic acid polymer, and polyethylene glycol may be included in a weight ratio of 1:1 to 20:1.
- the particle size controllability and dispersion stability of the lactic acid-based polymer particles of the present invention can be improved, and the compatibility with the hyaluronic acid mixture to be described later is improved. may be desirable.
- the weight ratio of the lactic acid-based polymer and the block copolymer the size and shape of the dispersion formed in the aqueous phase can be adjusted.
- the dispersion when the weight ratio of the lactic acid-based polymer to the block copolymer is 1:1 to 6:1, the dispersion may be prepared as fine particles having a size of 0.01 to 4 ⁇ m, and the lactic acid-based polymer is inside the fine particles. may have a spherical shape filled with high density.
- oval particles having a spherical shape or a shape elongated in one direction may be prepared in the dispersion, and the weight ratio is 9:1 To 15: 1, the dispersion may have a spherical or oval shape in which pores are formed inside.
- the dispersion formed in the aqueous phase by including the lactic acid-based polymer and the block copolymer containing the lactic acid-based polymer and polyethylene glycol may be spherical or elliptical particles, and the particles may have an average particle size of 0.01 to 30 ⁇ m, and , specifically, may be 0.1 to 20 ⁇ m.
- the average particle size may be atomized depending on the manufacturing process, but there is a problem in that the polydispersity is high and the reproducibility of the dispersion is poor.
- the biodegradable polymer dispersion according to the present invention contains a lactic acid-based polymer and a block copolymer containing polyethylene glycol, so it has very high reproducibility depending on the manufacturing method and can be atomized without applying high energy, It has the advantage of high dispersion.
- the hyaluronic acid mixture may mean a hyaluronic acid mixture of three types of hyaluronic acid, ammonium-substituted hyaluronic acid, and hyaluronic acid oligomer.
- the hyaluronic acid may be a high molecular weight hyaluronic acid having a weight average molecular weight of 1,000,000 g/mol to 3,000,000 g/mol, specifically 1,200,000 g/mol to 2,200,000 g/mol, and the hyaluronic acid mixture It may be included in an amount of 55 to 90% by weight based on the total weight, specifically, it may be included in an amount of 65 to 85% by weight, but is not limited thereto.
- the ammonium-substituted hyaluronic acid may mean that some or all of the hydrogen atoms of the hydroxyl group of the hyaluronic acid are substituted with a group having a quaternary ammonium cation group, and a weight average molecular weight of 300,000 g/mol to 1,000,000 g/mol, specifically It may be 500,000 g/mol, 800,000 g/mol, 1 to 10% by weight based on the total weight of the hyaluronic acid mixture, and specifically 3 to 8% by weight, but limited thereto it is not
- the hyaluronic acid oligomer may mean a hydrolyzed state of hyaluronic acid, may have a weight average molecular weight of less than 8,000 g/mol, and specifically refer to a low molecular weight hyaluronic acid of less than 5,000 g/mol and the lower limit is not limited, but may be 800 g/mol or more.
- the hyaluronic acid oligomer may be included in an amount of 10 to 35% by weight based on the total weight of the hyaluronic acid mixture, specifically, it may be included in an amount of 13 to 30% by weight, but is not limited thereto.
- the weight ratio of the hyaluronic acid mixture to the lactic acid polymer may be 1: 3 to 1: 20, specifically 1: 4 to 1: 16, but is not limited thereto.
- the dispersion stability of the lactic acid-based polymer particles of the biodegradable polymer dispersion to be described later can be further improved.
- the interaction with the skin barrier layer can be remarkably improved.
- conventional lactic acid-based polymers have high crystallinity and low interaction with the lipid layer constituting the skin barrier layer, and thus have remarkably low adsorption or permeation properties to the skin barrier layer.
- the hyaluronic acid mixture is mixed with the lactic acid-based polymer particles to hydrate the surface of the lactic acid-based polymer particles, and the interaction of the lactic acid-based polymer particles with the skin barrier layer is remarkably improved, so that it can be strongly adsorbed or permeated to the skin barrier layer. Accordingly, when the biodegradable polymer dispersion is applied to the skin, it is preferable because it can further improve physiological activities such as improvement of skin cell elasticity, inhibition of aging, and promotion of skin cell growth.
- lactic acid-based polymer particles are dispersed on a continuous phase containing a hyaluronic acid mixture, and lactic acid-based polymer particles are disposed on the surface of the lactic acid-based polymer particles.
- a block copolymer containing a polymer and polyethylene glycol may be located. More specifically, in the block copolymer, the hydrophobic lactic acid-based polymer portion is positioned to face the lactic acid-based polymer particles, and hydrophilic polyethylene glycol is positioned to face the continuous phase.
- the lactic acid-based polymer portion which is the hydrophobic portion of the block copolymer, may be more densely located on the surface of the particle, and the hydrophilic portion Excellent dispersion stability can be realized by phosphorus polyethylene glycol, which can accommodate a large amount of lactic acid-based polymer particles as a dispersed phase in the continuous phase, which may be more preferable.
- the biodegradable polymer dispersion may include an active ingredient to be described later in each phase independently, which may be more preferable.
- the method for producing a biodegradable polymer dispersion comprises the steps of: preparing a polymer solution by dissolving a polylactic acid-based polymer and a block copolymer in a solvent; preparing an aqueous solution in which a hyaluronic acid mixture and water are mixed; preparing a dispersion by mixing an aqueous solution with the polymer solution; It may include; removing the solvent from the dispersion.
- the step of preparing the polymer solution may be prepared by dissolving the above-described polylactic acid-based polymer and block copolymer in a solvent, and the solvent is not limited as long as the solvent is an organic solvent miscible with water, but specifically acetone ( Acetone), ethanol (Ethanol), acetic acid (Acetic acid), N,N- dimethylformamide (N,N-Dimethylformamide) and N,N- dimethylacetamide (N,N-Dimethylacetamie) any selected from the group consisting of It may be one or a mixture of two or more, preferably acetone (Acetone) may be used.
- acetone Acetone
- Euthanol acetic acid
- N,N- dimethylformamide N,N-Dimethylformamide
- N,N-Dimethylacetamie any selected from the group consisting of It may be one or a mixture of two or more, preferably acetone (Acetone) may be used.
- the solvent may be included in an amount of 70 wt% to 95 wt%, but is not limited thereto.
- the step of preparing the aqueous solution may be to use the three types of hyaluronic acid described above, and the water may be included in an amount of 95% to 99.9% by weight based on the total aqueous solution, but is not limited thereto.
- the preparing of the dispersion may be prepared by mixing an aqueous solution with the polymer solution, and the polymer solution and the aqueous solution may be prepared by mixing in a volume ratio of 1:1 to 1:3.
- the dispersion may be one in which the aqueous solution forms a continuous phase, and the solvent is extracted into the continuous phase so that the phase-separated polymer forms a dispersed phase.
- the dispersed phase may be a block copolymer containing a lactic acid-based polymer and polyethylene glycol positioned on the surface of the dispersed lactic acid-based polymer particles.
- the step of removing the solvent is not limited, but may specifically use evaporation, and the evaporation condition may be performed at 20 to 130 ° C. for 1 hour to 48 hours, but is not limited thereto, and the use of Depending on the type of solvent, evaporation conditions may be adjusted. In addition, the evaporation may be performed under reduced pressure.
- the lactic acid-based polymer particles are dispersed on the continuous phase containing the hyaluronic acid mixture, and the lactic acid-based polymer particles are formed on the surface of the lactic acid-based polymer and polyethylene It may be in the form in which the block copolymer containing glycol is located.
- the biodegradable polymer dispersion according to an aspect of the present invention has excellent bioactive properties by itself, biocompatibility and high loading properties that can contain a large amount of active ingredients, so that it can be applied to various fields, Specifically, a cosmetic composition or a composition for external application for skin or a pharmaceutical composition including the biodegradable polymer dispersion may be mentioned.
- the application mode of the active ingredient includes a first embodiment comprising a hydrophilic active ingredient in a hyaluronic acid mixture, which is a hydrophilic continuous phase, a second embodiment comprising a hydrophobic active ingredient in a hydrophobic lactic acid-based polymer, hydrophilicity It may include a third aspect including the active ingredient in each of the hyaluronic acid mixture and the hydrophobic lactic acid-based polymer, which is a continuous phase of
- the active ingredient can be used without limitation as long as it is a known active ingredient having physiological activity in the skin or other tissues, and additional fragrances, vitamins, stabilizers, It may further include a conventional additive that is not harmful to the human body, such as an oxidizing agent, but is not limited thereto.
- biodegradable polymer dispersion of the present invention or the composition comprising the biodegradable polymer dispersion of the present invention can be applied in formulations such as known internal and external preparations, preferably external preparations such as creams, ointments, lotions, and gels. may be applied as
- the biodegradable polymer dispersion or the composition comprising the biodegradable polymer dispersion can be applied directly to the skin, and when plasma-treated to the applied site, the penetration of the biodegradable polymer dispersion into the skin increases, As absorption into the skin is promoted, it is possible to accelerate the physiologically active properties, so that effective skin improvement is possible within a short time, and it can help treatment by skin regeneration, which can be applied to skin improvement.
- an additional active ingredient is included in the biodegradable polymer dispersion, diffusion of the active ingredient into the deep skin is promoted by plasma treatment, thereby further maximizing the skin improvement or therapeutic effect.
- biodegradable polymer dispersion according to an aspect of the present invention having the above characteristics or a composition including the same is provided with a plasma treatment device and can be used as a desirable skin improvement system.
- a polymer solution was prepared in which 1.25 g of polylactic acid (EVONIK, RESOMER® R 202 S) and 1.25 g of a PEG-PLA block copolymer (EBONIK, RESOMER 100 DL mPEG5000) were mixed in 25 mL of acetone.
- hyaluronic acid molecular weight 1,200,000 g/mol
- hydroxypropyltriammonium hyaluronic acid molecular weight 500,000 g/mol
- sodium hyaluronate hydrolyzed with hyaluronic acid oligomer molecular weight 5,000 g/mol
- a biodegradable polymer dispersion was prepared by slowly mixing 25 mL of the prepared polymer solution into 50 mL of an aqueous solution under stirring, and evaporating the mixed solution under reduced pressure in acetone at room temperature.
- a biodegradable polymer dispersion was prepared in the same manner as in Example 1, except that 1.67 g of polylactic acid and 0.83 g of PEG-PLA block copolymer were used in Example 1.
- a biodegradable polymer dispersion was prepared in the same manner as in Example 1, except that 1.87 g of polylactic acid and 0.63 g of PEG-PLA block copolymer were used in Example 1.
- a biodegradable polymer dispersion was prepared in the same manner as in Example 1, except that 2.08 g of polylactic acid and 0.5 g of PEG-PLA block copolymer were used in Example 1.
- a biodegradable polymer dispersion was prepared in the same manner as in Example 1, except that 2.08 g of polylactic acid and 0.42 g of PEG-PLA block copolymer were used in Example 1.
- a biodegradable polymer dispersion was prepared in the same manner as in Example 1, except that 2.08 g of polylactic acid and 0.42 g of PEG-PLA block copolymer were used in Example 1.
- a biodegradable polymer dispersion was prepared in the same manner as in Example 1, except that 2.14 g of polylactic acid and 0.36 g of PEG-PLA block copolymer were used in Example 1.
- a biodegradable polymer dispersion was prepared in the same manner as in Example 1, except that in Example 1, 2.22 g of polylactic acid and 0.28 g of a PEG-PLA block copolymer were used.
- a biodegradable polymer dispersion was prepared in the same manner as in Example 1, except that in Example 1, a solution obtained by mixing 3.0 g of polylactic acid and 0.3 g of PEG-PLA block copolymer in 33 mL of acetone was used. .
- a biodegradable polymer dispersion was prepared in the same manner as in Example 1, except that in Example 1, a solution of 4.5 g of polylactic acid and 0.3 g of PEG-PLA block copolymer was used in 48 mL of acetone. .
- a biodegradable polymer dispersion was prepared in the same manner as in Example 1, except that in Example 1, a solution of 6.0 g of polylactic acid and 0.3 g of PEG-PLA block copolymer was used in 63 mL of acetone. .
- Example 1 except that 1.5 g of polylactate-co-glyclate (EVONIK, RESOMER RG 752 S) was used instead of polylactic acid in Example 1 and 0.5 g of PEG-PLA copolymer was used. In the same manner as described above, a biodegradable polymer dispersion was prepared.
- polylactate-co-glyclate EVONIK, RESOMER RG 752 S
- a biodegradable polymer dispersion was prepared in the same manner as in Example 1, except that 50 mL of water (H 2 O) was used instead of the aqueous solution in Example 1.
- a biodegradable polymer dispersion was prepared in the same manner as in Example 1, except that 50 mL of water (H 2 O) was used instead of the aqueous solution in Example 2.
- a biodegradable polymer dispersion was prepared in the same manner as in Example 1, except that 50 mL of water (H 2 O) was used instead of the aqueous solution in Example 4.
- a biodegradable polymer dispersion was prepared in the same manner as in Example 1, except that 50 mL of water (H 2 O) was used instead of the aqueous solution in Example 7.
- a biodegradable polymer dispersion was prepared in the same manner as in Example 1, except that polylactic acid was not used in Example 1.
- a biodegradable polymer dispersion was prepared in the same manner as in Example 1, except that the PEG-PLA block copolymer was not used in Example 1.
- the average particle size of the dispersed particles in the biodegradable polymer dispersion prepared in Examples 1 to 11 and Comparative Examples 1 to 6 was measured and shown in Table 1 below.
- Comparative Example 5 when polylactic acid (PLA) was not used, it was confirmed that the particles of the resulting biodegradable polymer dispersion were largely agglomerated, and Comparative Example in which the PEG-PLA block copolymer was not used In the case of 6, it was confirmed that polylactic acid (PLA) was largely agglomerated, resulting in the formation of precipitates rather than fine particles.
- HDF-N Human dermal fibroblasts (GIBCO) containing Medium 106 (Gibco-BRL, Gaithersburg, MD) medium and low-serum growth adjuvant (LSGS; Gibco-BRL, Gaithersburg, MD) containing 1% In a medium supplemented with penicillin/streptomycin, it was cultured at 37° C. 5% CO 2 condition.
- GEBCO Human dermal fibroblasts
- LSGS low-serum growth adjuvant
- Human dermal fibroblasts (HDF-N) were dispensed in a 96-well plate, and cultured for 24 hours at 37° C. 5% CO 2 condition. Thereafter, the supplement was replaced with a removed medium and cultured for 24 hours.
- the test substance was diluted and replaced with the medium, and cultured for 24 hours. Then, it was treated with a 5 mg/ml MTT solution and further cultured for 4 hours in an incubator at 37°C. After incubation, the supernatant was removed, and DMSO was added to the formazan formed by MTT reduction to lyse the cells, and then the absorbance was measured at 540 nm using an ELISA microplate reader (SoftMax Pro5, Molecular Devices, USA). All data are expressed as mean standard deviation. For statistical analysis of each data, a two-sided test of Student's t-test was performed, and it was judged to be significant when p ⁇ 0.05 compared to the control group.
- Human dermal fibroblasts (HDF-N) were dispensed in a 6-well plate, and cultured for 24 hours at 37 °C 5% CO 2 condition. After replacing the supplement with the removed medium, maintaining the starvation state of the cells for 24 hours, after treating the biodegradable polymer dispersion according to Examples 1 and 4, plasma was irradiated for 3 seconds. After culturing for 24 hours, the culture medium was collected and the amount of procollagen was measured using a procollagen Type I C-Peptide (PIP) ELISA kit (MK101, Takara Bio Inc.). All data are expressed as mean standard deviation. For statistical analysis of each data, a two-sided test of Student's t-test was performed, and it was judged to be significant when p ⁇ 0.05 compared to the control group.
- PIP procollagen Type I C-Peptide
- Human dermal fibroblasts (HDF-N) were dispensed in a 6-well plate, and cultured for 24 hours at 37 °C 5% CO 2 condition. Thereafter, the supplement was replaced with the removed medium, and after maintaining the starvation state of the cells for 24 hours, the medium was removed, washed with DPBS, and then 200 ⁇ l of DPBS was added and UVB 30 mJ was irradiated. After UVB irradiation, the biodegradable polymer dispersion according to Examples 1 and 4 was treated, and plasma was irradiated for 3 seconds.
- HDF-N Human dermal fibroblasts
- Human dermal fibroblasts (HDF-N) were dispensed in a 6-well plate, and cultured for 24 hours at 37 °C 5% CO 2 condition. After replacing the supplement with the removed medium, maintaining the starvation state of the cells for 24 hours, the biodegradable polymer dispersion according to Examples 1 and 4 was treated, and plasma was irradiated for 3 seconds. The cultured cells were washed with DPBS, dissolved in 0.1% triton X-100 0.2M Tris solution (pH 8.0), and then frozen and thawed in liquid nitrogen three times to homogenize the cells.
- HDF-N Human dermal fibroblasts
- the biodegradable polymer dispersion and plasma alone treatment group according to Examples 1 and 4 of the present invention significantly decreased the activity of elastase compared to the control group.
- the activity of elastase was further decreased, and it was confirmed that the decomposition inhibitory effect of elastin was significantly exhibited.
- the biodegradable polymer dispersion and the plasma alone treatment group according to Examples 1 and 4 of the present invention increased the collagen expression level compared to the control group.
- the collagen expression level was further increased when plasma was applied to the biodegradable polymer dispersions according to Examples 1 and 4.
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Abstract
Description
Claims (14)
- 락트산계 중합체, 락트산계 중합체 및 폴리에틸렌글리콜을 함유하는 블록 공중합체 및 히알루론산 혼합물을 포함하는 생분해성 고분자 분산체.
- 제1항에 있어서,상기 생분해성 고분자 분산체는 평균입도가 0.01 내지 30 ㎛인 구형의 입자인 생분해성 고분자 분산체.
- 제1항에 있어서,상기 락트산계 중합체는 중량평균분자량이 10,000 내지 1,000,000 g/mol 인 생분해성 고분자 분산제.
- 제1항에 있어서,상기 락트산계 중합체 및 폴리에틸렌글리콜을 함유하는 블록 공중합체는 중량평균분자량이 2,000 내지 60,000 g/mol인 생분해성 고분자 분산제.
- 제1항에 있어서,상기 락트산계 중합체와 락트산계 중합체 및 폴리에틸렌글리콜을 함유하는 블록 공중합체의 중량비는 1 : 1 내지 20 : 1인 생분해성 고분자 분산제.
- 제1항에 있어서,상기 히알루론산 혼합물은 히알루론산, 암모늄 치환 히알루론산 및 중량평균분자량 8,000 g/mol 미만의 히알루론산 올리고머를 포함하는 것인 생분해성 고분자 분산제.
- 제6항에 있어서,상기 히알루론산 혼합물의 전체 중량에 대하여 고분자량 히알루론산은 50 내지 90 중량%, 암모늄 치환 히알루론산은 1 내지 10 중량%, 히알루론산 올리고머은 10 내지 35 중량%로 포함하는 것인 생분해성 고분자 분산체.
- 제1항에 있어서,상기 히알루론산 혼합물과 락트산계 중합체의 중량비는 1 : 3 내지 1 : 20인 생분해성 고분자 분산체.
- 제2항에 있어서,상기 락트산계 중합체 및 폴리에틸렌글리콜을 함유하는 블록 공중합체(PEG-PLA)는 상기 락트산계 중합체를 포함하는 입자의 표면에 위치하는 것인 생분해성 고분자 분산체.
- 제1항 내지 제9항 중 어느 한 항의 생분해성 고분자 분산체를 포함하는 화장료 조성물.
- 제1항 내지 제9항 중 어느 한 항의 생분해성 고분자 분산체를 포함하는 피부 외용제 조성물.
- 제1항 내지 제9항 중 어느 한 항의 생분해성 고분자 분산체를 포함하는 약학 조성물.
- 제12항에 있어서,상기 생분해성 고분자 분산체는 상기 락트산계 중합체를 포함하는 입자의 내부에 유효성분을 포함하는 것인 약학 조성물.
- 제1항 내지 제9항 중 어느 한 항의 생분해성 고분자 분산체 및 플라즈마 장치를 포함하는 피부 개선용 시스템.
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| EP21862119.1A EP4122442A4 (en) | 2020-08-31 | 2021-08-27 | BIODEGRADABLE POLYMER DISPERSION, COMPOSITION THEREOF AND SKIN IMPROVEMENT SYSTEM |
| CN202180026768.4A CN115427012B (zh) | 2020-08-31 | 2021-08-27 | 生物降解性高分子分散体、包含其的组合物和皮肤改善用系统 |
| BR112022020991A BR112022020991A2 (pt) | 2020-08-31 | 2021-08-27 | Dispersão de polímero biodegradável, composição compreendendo a mesma e sistema de melhoria da pele |
| US17/996,781 US20230149288A1 (en) | 2020-08-31 | 2021-08-27 | Biodegradable polymer dispersion, composition comprising same, and skin improvement system |
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| KR10-2020-0110235 | 2020-08-31 | ||
| KR20200110235 | 2020-08-31 | ||
| KR10-2021-0112934 | 2021-08-26 | ||
| KR1020210112934A KR102905790B1 (ko) | 2020-08-31 | 2021-08-26 | 생분해성 고분자 분산체, 이를 포함하는 조성물 및 피부 개선용 시스템 |
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| US (1) | US20230149288A1 (ko) |
| EP (1) | EP4122442A4 (ko) |
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| WO (1) | WO2022045823A1 (ko) |
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| EP4122442A1 (en) | 2023-01-25 |
| EP4122442A4 (en) | 2024-05-22 |
| BR112022020991A2 (pt) | 2023-03-07 |
| CN115427012B (zh) | 2024-07-02 |
| CN115427012A (zh) | 2022-12-02 |
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