221 results about "Preparing skin" patented technology

A skin graft preparing system includes a surgical device having a housing with a front end defining a forward direction and a rear end defining a rear direction for moving along skin in the forward direction. Cutting structure is moveably coupled to the housing for separating skin from the body where the cutting structure has a cutting portion. The cutting portion cyclically translates in the forward and rear direction without lateral movement. The skin graft preparing system also includes a skin graft preparing device having a base structure, one or more skin feeding structures, one or more skin preparing structures, and one or more skin collecting structures coupled to the base structure. The skin supporting structure from the surgical device provides the skin feeding structure of the skin graft preparing device.

In certain embodiments, the present invention relates to a process for preparing skin removed from a human donor, including a living human donor, and removing cellular components and forming a decellular matrix having as major components collagens and elastins while disinfecting the tissue. In other embodiments, the present invention relates to a process for treating a decellularized soft tissue by freezing the same at a plurality of decreasing temperatures at atmosphere or higher such that there is formation of ice crystals having a size greater than 2.0 and lyophilizing the soft tissue under vacuum to remove the water to less than 6% forming a porous matrix.

The production process of continuously preparing SiC fibre includes the following steps: dissolving high-molecular polymer in solvent to prepare skin solution, dissolving or dispersing the dispersingagent, high-molecular polymer, SiC powder and sintering adjuvant into solvent to prepare core solution, extruding skin solution and core solution from microhole of skin-core composite spinning component under the pressure to make skin solution cover exterior of the core solution, using wet process or dry process to solidifying fluid-flow wire, drawing, drying and winding so as to obtain raw fibre, its core portion is ceramic powder adhered by polymer and its skin portion is made of pure high-molecular material.

Provided is a preparation method for an okra extracting solution. The preparation method comprises the following steps: tender okra pods are added into water with the temperature of 90-100 DEG C, taken out after treatment for 7-10 sec, cooled to the room temperature, added into deionized water, ground into a thick liquid, and filtered to obtain a first filtrate which is an okra fruit extracting solution; okra flowers are added into water with the temperature of 90-100 DEG C, taken out after treatment for 1-5 sec, cooled to the room temperature, added into deionized water, ground into a thick liquid, and filtered to obtain a second filtrate which is an okra flower extracting solution; the okra fruit extracting solution and the okra flower extracting solution with a weight ratio of 0.1-33:0.1-13 are mixed evenly to obtain the okra extracting solution. The pure and natural products obtained by the preparation methods for the tender okra pod extracting solution and the okra extractives have effects of skin rejuvenation, sun protection, anti-wrinkle, whitening or the like, are free from any chemical agent, have minimal side effects on skins, are safe to use, and are suitable to prepare skin care products.

The invention discloses a high-heat-resistance skin-core structural polylactic acid (PLA) fiber and a preparation method thereof. The core layer of the skin-core structural PLA fiber is stereocomplex polylactic acid (scPLA), and the skin layer is PLA with the L-lactic acid structural unit (D-LA) content of 0 to 5 mol percent. The preparation method of the skin-core structural PLA fiber comprises the following steps: after raw materials are dried, adding the raw materials into corresponding hoppers of a composite spinning machine respectively, and carrying out melt conveying, spinning, blowing cooling, winding feeding, oil bath stretching, steam bath stretching, tension heat setting, oiling, stacking, curling, relaxation and cutting to prepare skin-core structural PLA short fiber; or after the raw materials are dried, adding the raw materials into the corresponding hoppers of the composite spinning machine respectively, and carrying out one step method of melt spinning, side blowing cooling, oiling, stretching and heat setting to prepare skin-core structural multifilaments. The prepared skin-core structural PLA fiber is relatively high in heat resistance, and can be used in the fields of textiles, composite materials and the like.

The present invention provides an external preparation for skin comprising a phospholipid having an iodine value of 80 to 110, ethanol in an amount of 55 to 83 wt % and water in an amount of 15 to 43 wt %, which is improved in it's preparation stability by suppressing an increase in an acid value of phospholipid. The present invention also provides an external preparation for skin which is improved in percutaneous absorption of medically effective ingredient(s). The present invention provides further a method for suppressing an increase in an acid value of phospholipid by comprising phospholipid having high iodine value and high concentration of ethanol and water, as well as a method for improving percutaneous absorption of medically effective ingredient(s) in external preparation for skin.

The invention relates to a method for preparing skin-core structured drug-loading nanofiber through a needleless electrostatic spinning technology, which comprises the following steps of: dissolving fat soluble drugs into vegetable oil to obtain oil-phase solution; dissolving water-soluble polymer materials into water, and then adding an emulsifier to obtain aqueous solution, wherein the use amount of the emulsifier is 0.1-5% of the total weight of the solution; adding the oil-phase solution into the aqueous solution drop by drop under a constant-speed stirring condition to obtain oil-in-water type O/W emulsion; and electrostatically spinning the emulsion on needleless electrostatic spinning equipment to obtain the skin-core structured drug-loading nanofiber. According to the preparation method disclosed by the invention, the operation is simple, the cost is low, economic benefits can be obtained, the production rate can be up to 8g of nanofiber per hour; furthermore, the prepared skin-core structured nanofiber has high mechanical property; and loading of fat soluble drugs is realized.

The invention relates to an extracting complex of a Chinese herbal compound-'screen sensitization-resisting formula 'and cosmetics including the 'screen sensitization-resisting formula' as active ingredients. The 'screen sensitization-resisting' formula comprises nine kinds of traditional Chinese medicine of astragalus mongholicus, bighead atractylodes rhizome, saposhnikovia divaricata, chamomile, purslane, scutellaria baicalensis, radix sophorae flavescentis, smoked plum and row liquorice, has obvious functions of sensitization prevention, moisture retention and antioxidation, and can be used for preparing skin-soothing facial cleanser, skin-soothing calm toner, skin-soothing moisture retention emulsion, skin-soothing calm skin cream, skin-soothing calm essence, skin-soothing calm sleeping masks, skin-soothing mask pasting, skin-soothing calm shower gel and the like which have the above functions. The Chinese herbal compound is less in untoward effects and high in safety to the skin. The cosmetics including the 'screen sensitization-resisting formula' have functions of sensitization prevention, moisture retention and aging prevention.

The invention relates to a pomelo drink, which uses the pomelo as main material, separates skin and caro, prepares skin into liquid, adds fragrant solomonseal rhizome and licorice extractives, mixes and filters. The inventive drink has suspended pomelo caro, with throat-moistening functions, while it can be used on the patients with diabetic, high blood pressure or the like.

The invention relates to a use of angelica or an extract thereof in preparing skin care products, which belongs to a field of cosmetics. The angelica or the extract thereof have the advantages of adjusting skin secretion function, moisture keeping function, preventing and curing stains and promoting skin metabolism. The skin care products of the invention adopt the angelica or the extract thereof as main active components, which have remarkable effect on improving the complexion and healthy state of skin and provide a novel skin care selection for the public.

The invention relates to a preparation method for natural health-care chrysanthemum tea. The method comprises methods of preparing skin-nourishing and beautifying chrysanthemum tea and health-care chrysanthemum tea. The preparation method is characterized in that the method comprises the following steps: cleaning vegetables or fruits and conducting juicing, removing slag and keeping solution, pouring the juiced solution in a pot and adding Chinese medicine wrapped in a gauze bag at the same time, boiling the solution and spraying the boiled solution on dry chrysanthemum to prepare the health-care chrysanthemum tea product. The preparation method provided in the invention is simple; the chrysanthemum tea prepared by the method not only retains the special fragrance of original chrysanthemum, but also additionally contains rich vitamins and minerals contained in vegetables and fruits; and the added Chinese medicinal components provide the tea with efficacy of qi and blood nourishing. The preparation method for the natural health-care chrysanthemum tea has great application and promotion values.

The invention discloses a chitosan/silk fibroin stent with a loaded curcumin/gelatin microsphere compound, and a preparation method and applications thereof. The preparation method comprises followingsteps: mixing a silk fibroin solution with a chitosan solution according to a volume ratio of 1:1 to obtain a chitosan/silk fibroin composite solution; dropwise adding a curcumin solution with a concentration of 10-50 mg/mL into gelatin microspheres, placing the system in an environment with a temperature of 4-25 DEG C overnight, then freeze-drying the solution to obtain a curcumin/gelatin microsphere compound; then adding the curcumin/gelatin microsphere compound into the chitosan/silk fibroin composite solution, evenly stirring, and then freeze-drying the solution to obtain the chitosan/silk fibroin stent with a loaded curcumin/gelatin microsphere compound. The porosity of the stent is 75 to 95%; the aperture is 50 to 200 [mu]m, and moreover, the stent has a long-term antibacterial function and a drug sustained-release function, and can be used to prepare skin wound dressing.

The invention relates to a preparation method of polystyrene micro-foaming co-extrusion imitation wood material. It is characterized in that: prepare the surface layer material and the core layer material, put the surface layer material and the core layer material into the auxiliary extruder and the main extruder respectively, the two extruders are co-extruded into a mold, and are fused in the mold One body, in which the surface layer material is coated on the surface of the core layer material. The base material of the surface material is high-impact polystyrene and it contains rhyolite masterbatch that is compatible with high-impact polystyrene but has different fluidity and dispersion. The core material is polystyrene micro-foaming material. The weight ratio of the core layer material to the surface layer material is 85-95%: 5-15%. The present invention can produce a variety of products with different effects according to the difference in color and weight of the primary color masterbatch and flowline masterbatch added to the surface material, the difference in the type of flowline masterbatch, and the difference in processing technology. Such as various imitation wood grain products, products of various designs and colors, etc.

The invention provides a skin whitening composition capable of performing monophenyl oxidase activity inhibiting effect and realizing skin whitening effect. Vitamin C (A) and gluconic acid (B) are deployed together for preparing skin whitening composition.

The invention discloses a skin-like multi-channel surface electromyography electrode on the basis of mesh structural designs and a method for preparing the skin-like multi-channel surface electromyography electrode. Devices of the skin-like multi-channel surface electromyography electrode include electrodes, interconnection wires, lead interfaces, a substrate and an encapsulating layer. The skin-like multi-channel surface electromyography electrode and the method have the advantages that ultrathin mesh structures are periodically arranged to form the devices except for the lead interfaces, thetotal thickness of the devices is only a few micrometers, the devices are excellent in extensibility and complex curved surface and irregular shape adaptability, the mechanical properties of the devices are similar to the mechanical properties of the skin of human bodies, and the devices can adaptively tightly cling to the surface of the skin just like tattoo or stickers only by the aid of the effect of Van der Waals' force between the devices and the skin in measurement procedures, and can deform along with deformation of the skin without failure; extensible flexible electronic technologiesand the traditional micro-nano machining processes are compatible with one another to prepare the skin-like multi-channel surface electromyography electrode, the channel numbers of the sensing electrodes can be extended according to requirements, and accordingly the skin-like multi-channel surface electromyography electrode and the method are favorable for large-scale and high-density electromyography signal acquisition.

The invention discloses a germinated brown rice herbal skin care product and a preparation method thereof. According to the invention, germinated brown rice essence and Chinese herbal medicine essence are scientifically compounded to prepare skin care emulsions, skin care creams, skin care masks, skin care facial cleansers and the like. The series of skin care products provided by the invention integrate cereals and traditional Chinese medicine herb beautifying essence, has good acne removing and speckle removing effects, and can be used for improving the problems of skin wrinkles, allergy, dry itch and peeling, roughness, dull yellow, couperose skin and the like, so that the skin is moist, fine and smooth, transparent and fair-skinned. The product prepared by the invention is reasonable in preparation process, safe, mild and free from irritation, so that the product is a preferential product for people purchasing natural beauty.

The invention belongs to the technical field of biomedical engineering, particularly belongs to the field of technologies for preparing skin repair materials, and discloses a skin repair material with biological activity and a method for preparing the skin repair material. The skin repair material comprises collagen, DMEM (Dulbecco modified eagle media), keratinocytes and fibroblasts. The skin repair material with the biological activity and the method have the advantages that the skin repair material is low in immunogenicity and excellent in biocompatibility, materials for the skin repair materials come from abundant sources, and obvious effects of promoting wound healing can be realized; the skin repair material is prepared from collagen solution with biological activity by the aid of biological three-dimensional printing technologies and can be prepared according to actual conditions of patients, integral preparation procedures are short in consumed time, the skin repair material can be immediately prepared and used, accordingly, the patients can be truly individually treated, and influence on the performance of products due to misoperation during product transportation or storage can be prevented.

The invention provides a skin-care liquid preparing unit comprising: a main container 2 which contains raw water; a cartridge container 3 which is placed in the main container 2, and which contains different kinds of cation exchange resins; and a sprayer 4 which is attached to an upper end mouth portion 6 of the main container 2, and which has a suction pipe 17 connected to an upper portion of the cartridge container 3. The unit is configured so as to pass the raw water in the main container 2 through the cartridge container 3 from a lower portion of the cartridge container and spray the water from the sprayer 4. In the unit, in order to easily prepare skin-care liquid of a pH value that is useful for moisture retention and health of the skin, an Na type or K type cation exchange resin layer 13 and an H type cation exchange resin layer 11 are formed to be arranged in upper and lower positions in the cartridge container 3.

The invention relates to a large green frog antioxidant peptide (antioxidin-RL) as well as a gene and application thereof, belonging to the technical field of biomedicine. The large green frog antioxidant peptide (antioxidin-RL) is a single-chain polypeptide coded by the gene of the large green frog antioxidant peptide (antioxidin-RL) and has the molecular weight of 1672.98 Daltons and an isoelectric point of 9.31, and the complete sequence of the large green frog antioxidant peptide (antioxidin-RL) is alanine-methionine-arginine-leucine-threonine-tyrosine-asparagine-arginine-proline-cysteine-isoleucine-tyrosine-alanine-threonine. The coded genes consist of 306 nucleotides, wherein a mature peptide part is coded by 130-171 site nucleotides. The artificially synthesized large green frog antioxidant peptide (antioxidin-RL) has outstanding antioxidant activity, can be applied to preparing skin antioxidant protecting and in-vivo radicals scavenging drugs and also has simple sequence and convenient synthesization.

The invention provides a novel method for preparing a skin-protective composite protein facial mask. The method adopts commercial defatted rice protein and collagen as raw materials, and comprises the following steps: preparing a small-molecular rice protein peptide solution; preparing a small-molecular collagen peptide solution; preparing a composite protein solution; and preparing the composite protein facial mask. According to the produced composite protein facial mask, the effective component rice protein-collagen composite protein is bonded to cellulose non-woven fabric facial mask paper through an ether bond of glycidyl ether, the bonding is firm and cannot easily fall, the facial mask paper can be repeatedly used to reduce cost; the facial mask is mild and non-irritative to skin by combining the advantages of non allergy of rice protein and strong skin-protection of collagen; furthermore, the facial mask is weak in adsorption capacity to nutrition and functional factors, so that nutrition and functional factors can easily infiltrate into skin and supply nutrition to skin in time. A certain amount of wetting agent, antioxidant, emulsifier, essence and other nutritional factors are added into the prepared composite protein facial mask, and the facial masks are filled into bags to prepare different types of facial mask finished products. The facial mask is wide in application.

The invention relates to the field of daily chemicals and plant extracts, in particular to a ginseng flower composite fermentation product and an application thereof. A ginseng flower extract is fermented by yeast and lactic acid bacteria successively, and the contents of rare ginsenosides s-Rg2, R-Rg2, S-Rg3, R-Rg3, PPT, F4, Rh4, Rg5 and Compound K in the ginseng flower composite fermentation product contained in a supernatant of the fermentation product are all increased. The ginseng flower composite fermentation product can promote human keratinocyte proliferation, inhibit tyrosinase activity, limit melanin generation, improve skin pigmentation, and has whitening effect. Therefore, the ginseng flower composite fermentation product can be used for preparing skin external preparations, and can be used as an active ingredient for skin repair, improvement of pigmentation or whitening.