80 results about "Photoaging" patented technology

The invention discloses application of plant-derived extracellular vesicles in preparation of a product for preventing and treating photoaging and a topical application composition. Pseudo-ginseng is used as a raw material for extraction and purification of plant-derived extracellular vesicles, and results show that the pseudo-ginseng-derived extracellular vesicles can significantly treat or improve photoaging. The invention explores the practical application of the fresh pseudo-ginseng extracellular vesicles based on the traditional theory of traditional Chinese medicine, and clarifies the molecular mechanism of the pseudo-ginseng extracellular vesicles. In a word, the extracellular vesicles derived from pseudo-ginseng have a wide application prospect in treatment of skin aging.

The invention discloses a drug-loaded polygonatum kingianum extracellular vesicle, a preparation method and an application of the drug-loaded polygonatum kingianum extracellular vesicle in preparation of an anti-photoaging product, and aims to provide a drug-loaded polygonatum kingianum extracellular vesicle which has relatively high encapsulation efficiency and drug loading rate and good stability and biocompatibility, can effectively treat skin UVB inflammation, solves the problem that a drug is insoluble in water, improves the curative effect, and can be used for preparing an anti-photoaging product and a preparation method of the drug-loaded polygonatum kingianum extracellular vesicle. According to the technical scheme, the drug-loaded polygonatum kingianum extracellular vesicles comprise the polygonatum kingianum extracellular vesicles and drug active components loaded in the polygonatum kingianum extracellular vesicles, and the drug-loaded polygonatum kingianum extracellular vesicles comprise the drug-loaded polygonatum kingianum extracellular vesicles and the drug active components loaded in the drug-loaded polygonatum kingianum extracellular vesicles. The pharmaceutical active component is at least one of resveratrol, glutathione, astaxanthin and vitamin C. The invention further discloses a preparation method of the pharmaceutical composition. The invention belongs to the technical field of biological medicine.

The utility model belongs to the field of packaging films, particularly relates to a heat-insulating aluminum foil packaging film for food packaging, and aims to solve the problems that the quality guarantee period of food is shortened and the freshness and the quality of the food are reduced as the food is easily affected by light aging and oxidative deterioration due to the fact that the conventional packaging film is lack of effective barrier to ultraviolet rays and oxygen. According to the scheme, the film comprises a supporting frame and a winding drum, the winding drum is wound with a film body, and the film body comprises an ultraviolet-proof layer, a waterproof layer, an oxygen barrier layer, a protective layer, an aluminum foil layer, a contact layer and an antibacterial layer; the cutting assembly is arranged on the supporting frame and used for facilitating segmented cutting of the film body. Through the arrangement of the ultraviolet-proof layer and the oxygen barrier layer, the protection performance of the heat insulation aluminum foil packaging film for food packaging is effectively improved, damage of ultraviolet rays to food can be blocked, oxygen permeation can be prevented, and therefore the shelf life of the food is prolonged, and the freshness and quality of the food are kept.

The application belongs to the technical field of optical beauty, and discloses a medical beauty device with an LED light source and a body beauty system based on light therapy, which comprises the following steps: collecting multi-source data fusion and generating a skin health atlas through an ICP registration algorithm; based on the skin health atlas, a high tolerance area and a dense blood vessel area are segmented; laser wavelength, energy density and cooling parameters are allocated to each area; each dynamic threshold is adjusted in real time through a dynamic threshold; a risk level is determined and divided through multi-parameter fusion, and a hierarchical response mechanism is triggered to generate dynamic energy configuration parameters and safety control strategies; based on three-dimensional point cloud coordinates and space constraint conditions, a laser path planning is dynamically adjusted through a path re-planning algorithm to generate a light therapy execution log; based on the light therapy execution log, an efficacy evaluation report is generated to construct a photoaging risk atlas; through a reinforcement learning algorithm, the energy rule library, the parameters of the determination threshold and the weight coefficient of the registration algorithm are updated to form a closed-loop optimization.

The application discloses a ginseng polysaccharide, a preparation method and application, and the ginseng polysaccharide is ginseng polysaccharide GP60, which is composed of glucose, galactose and arabinose, and the molar ratio of each monosaccharide is glucose: galactose: arabinose = 77.1: 16.8: 6.1; a new preparation method is adopted; after soaking and twice decocting, different proportions of 95% ethanol are added into the filtrate in batches; the obtained precipitate is added with water to prepare a solution with a relative density of 1.1 g / ml; a certain amount of the solution is taken, a certain proportion of chloroform and n-butanol is added, and a polysaccharide aqueous solution is prepared; the polysaccharide aqueous solution is added with 95% ethanol until the alcohol content reaches 60%; the solution is statically placed for 12 hours; centrifugal separation is carried out; the precipitate is collected; the collected precipitate is sequentially washed with 95% ethanol, anhydrous ethanol, isopropyl alcohol and ether; the solvent is volatilized; and the ginseng polysaccharide GP60 is obtained. The ginseng polysaccharide GP60 is non-toxic, has the effect of preventing light aging, and can be widely applied in the fields of food or health food, anti-light aging skin care products, washing and caring products and anti-light aging medicines.

This invention provides an application of a quantitative partial reprogramming system in the preparation of drugs to reverse skin aging, belonging to the fields of regenerative medicine and medical aesthetics. The quantitative partial reprogramming system includes a nucleic acid delivery system or a small molecule induction system; skin aging includes photoaging-induced skin aging; reversing skin aging includes increasing the thickness of the dermis, increasing the density of type I collagen, and improving skin elasticity. The quantitative partial reprogramming system provided by this invention can fundamentally reverse the cellular aging clock and achieve structural regeneration, and can be applied to the preparation of drugs to reverse skin aging.

The application discloses application of plant-derived extracellular vesicles in preparation of products for preventing and treating photoaging and a local application composition. The application takes Panax notoginseng as raw material to extract and purify the plant-derived extracellular vesicles, and the results show that the extracellular vesicles derived from Panax notoginseng can significantly treat or improve photoaging. The application explores the practical application of extracellular vesicles of fresh Panax notoginseng based on traditional Chinese medicine theory, and clarifies the molecular mechanism of the extracellular vesicles. In general, the extracellular vesicles derived from Panax notoginseng have wide application prospects in treatment of skin aging.

The application belongs to the technical field of cosmetics, and particularly relates to a maleic acid and ectoine co-crystal as well as a preparation method and application thereof. The application comprises the following steps: mixing maleic acid and ectoine, and adopting a wet grinding process to obtain a maleic acid and ectoine co-crystal; and the molar ratio of the maleic acid and the ectoine is (0.8-1.2):(0.8-1.2). The maleic acid and ectoine co-crystal composition is prepared by the wet grinding method. The maleic acid and ectoine co-crystal can significantly improve the tensile strength of oxidatively damaged hair, and significantly repair the oxidatively damaged hair; and the content of hair ROS caused by photoaging is significantly reduced, and the maleic acid and ectoine co-crystal has a strong anti-photoaging effect. Meanwhile, the co-crystal preparation method is simple, has good repeatability, and is suitable for industrial production.

This application belongs to the field of microbial technology, and mainly relates to a strain of *Pediococcus lactis* BPA03 and its applications. *Pediococcus lactis* BPA03 is classified and named *Pediococcus lactis*. Pediococcus acidilactici This *Pediococcus lactis* strain BPA03 was deposited on September 28, 2025, at the China General Microbiological Culture Collection Center (CGMCC), located at No. 3, Courtyard 1, Beichen West Road, Chaoyang District, Beijing, with accession number CGMCC No. 36109. It inhibits skin melanin deposition and improves UV photoaging, suppresses the gene expression levels of immune factors such as IL-1β, IL-6, IL-8, and TNF-α, improves the activities of superoxide dismutase, catalase, and glutathione peroxidase, inhibits vinorelbine-induced neutropenia, and improves the inhibition of immune factor expression induced by vinorelbine, thus exhibiting comprehensive anti-aging effects.

The present application provides a peptide having the formula (I) R1-Ser-Pro-X1-Gln-R2 or a cosmetically or pharmaceutically acceptable salt thereof, or a cosmetic or pharmaceutical composition thereof, and their use in the preparation of a cosmetic or pharmaceutical composition for treating, preventing or repairing skin aging or photoaging, promoting collagen production, increasing skin elasticity and / or skin firmness, promoting PER1 protein expression, regulating skin circadian rhythm and / or repairing damaged skin cells. The peptide of formula (I) regulates the expression of skin circadian cycle regulation genes and related proteins, regulates skin circadian rhythm and resynchronizes skin cell biological clock, enhances cell vitality, repairs damaged cells, thereby alleviating signs of skin aging, and can be used in the field of cosmetics or medicine to resist skin aging, and can also be used to prepare a PER1 protein activator.

Pharmaceutical compositions for treating acne, photoaging, and uneven pigmentation comprising two or three distinct pharmaceutical ingredients are described. Methods for the treatment of acne, photoaging, and uneven pigmentation using the compositions are also described.

This application relates to the field of cosmetic technology, specifically disclosing an anti-photoaging skincare composition suitable for sensitive skin and its application. This application uses camellia flower extract, butcher's broom root extract, saffron extract, and lactobacillus fermentation products to form an anti-photoaging skincare composition. These components work together and inextricably on the coherent biological axis of skin microecological regulation – enhanced bioelectrical signals – activation of mitochondrial function. By restoring the core energy metabolism of skin cells, it fundamentally reverses the photoaging process and simultaneously achieves comprehensive rejuvenation effects such as anti-wrinkle, firming, and brightening.

The invention provides a synthetic method and application of silk fibroin-based melanin-like nanoparticles, and belongs to the technical field of nanoparticle preparations for biomedicine. After the silk fibroin nanoparticles, tyrosine and a tyrosinase solution are mixed, the silk fibroin-based melanin-like nanoparticles are obtained through a one-pot copolymerization reaction, and the enzyme concentration in the tyrosinase solution is 200-250 U / mL. The synthesis method has the advantages of being simple and convenient to operate, green, environmentally friendly and the like, and the synthesized silk fibroin-based melanin-like nanoparticles have excellent antioxidant activity and ultraviolet protection performance and remarkable skin cell photoaging resistance.

The present application relates to a kind of degradable PA6 composite modified plastics, belong to composite material technical field;The present application is by preparing a modifier with double bond in structure, and using the modifier to modify PBAT, effectively solve the uneven distribution problem of polar additive in PBAT-PA6 composite plastics, and provide good antibacterial performance and ultraviolet light aging resistance for composite plastics, in addition, the modifier of the present application can also improve the polarity of modified PBAT, and using the ionic-dipole interaction of quaternary ammonium salt structure in structure and the polar amide bond in PA6 is formed, the adhesion between modified PBAT phase and PA6 phase is enhanced, the compatibility between modified PBAT and PA6 is improved, and then the mechanical properties of PBAT-PA6 composite plastics as a whole is improved.

The application discloses a high-moisture-retention, water-supplying and repairing composition as well as a preparation method and application thereof, and relates to the technical field of cosmetics.The composition comprises an abroma zeylanicum extract, a dendrobium officinale extract, a opuntia tuna stem extract, a hydrolyzed oat and a common carrier for cosmetics.The opuntia tuna stem extract is used to actively supply water to provide sufficient water sources, the hydrolyzed oat is used to endogenously generate water to improve the water storage capacity of skin, the dendrobium officinale extract is used to physically lock water to prevent water loss, and the abroma zeylanicum extract is used to resist photoaging, improve skin color and whiten skin through antioxidation.The four components are combined to realize a complete skin care cycle from water supply to water locking, water generation and skin lightening.

Certain trifarotene fatty acid esters and external, topical skin care compositions containing one or more such compounds are described. In some embodiments, upon hydrolysis in the skin, shorter chain trifarotene fatty acid esters release short chain fatty acids such as octanoic acid and lauric acid, which are known to contribute to penetration enhancement in topical skin delivery. Methods of topically applying the external compositions to the skin of a subject to inhibit or reduce signs of photoaging or acne are also described.

A peptide of formula (I), i.e., R1—Wm-AA1-AA2-AA3-AA4-Trp-AA5-Xn—Yp—Zq—R2, a stereoisomer thereof, a mixture of stereoisomers thereof, a salt thereof, or a composition thereof, and a use thereof in the preparation of a composition for inhibiting ROCK activity, preventing aging or photoaging, and implementing anti-aging repair and moisturization.

The invention relates to the technical field of cloth and related production, and provides a healthy sun-resistant light-aging-resistant fabric and a production process thereof.The outer layer is made of polyester / spandex yarn with the heat shielding and near infrared ray absorbing functions, and a high-density sun-resistant barrier is formed; the inner layer uses regenerated cellulose / spandex yarn with strong hydrophilicity to construct a moisture absorption and ventilation area, knitting needle arrangement takes 4 rows * 8 columns as a circulation unit, triangular configuration takes 4 paths * 6 columns as a period, it is ensured that the function division of the inner layer and the function division of the outer layer are clear, the structure is stable, an ultraviolet light absorber and a near-infrared shielding agent are added in the after-finishing process, and the fabric is endowed with the lasting sun-proof performance. The cloth provided by the invention is suitable for outdoor sports and daily clothes, such as zipper sweaters and sun protection clothes, provides long-acting sun protection for a user, and ensures the wearing comfort at the same time.

The invention discloses a polypeptide composition with functions of whitening and brightening skin, resisting inflammation, resisting light aging and repairing skin, and relates to the technical field of skin care products. The polypeptide composition is prepared from oligopeptide-1, dipeptide-15, hexapeptide-9, palmitoyl tripeptide-5, tripeptide-2, palmitoyl tetrapeptide-7 and carnosine. According to the composition, through the synergistic effect of multiple active peptides, the effects of whitening and brightening skin, resisting inflammation, resisting light aging and repairing skin are achieved through multiple ways and multiple aspects, the effects of improving wrinkles, repairing skin, brightening skin color and delaying senescence can be better achieved, and the composition can be widely applied to various types of cosmetics.

The application provides a synthesis method and application of silk fibroin-based melanin-like nanoparticles, and belongs to the technical field of nanoparticle preparations for biomedical use. After mixing silk fibroin nanoparticles, tyrosine and tyrosinase solution, silk fibroin-based melanin-like nanoparticles are obtained through one-pot copolymerization, and the enzyme concentration in the tyrosinase solution is 200-250 U / mL. The synthesis method has the advantages of simple operation, green environmental protection and the like, and the synthesized silk fibroin-based melanin-like nanoparticles have excellent antioxidant activity, ultraviolet protection and significant anti-skin cell photoaging.

The invention belongs to the technical field of biological medicine, and particularly discloses application of litsea cubeba oil or citral serving as an active ingredient of the litsea cubeba oil in preparation of a product for preventing and treating photoaging. The invention further discloses a preparation for preventing and treating light aging. The preparation comprises litsea cubeba oil or citral serving as an active ingredient of the litsea cubeba oil. The invention overcomes the side effects of high price, skin irritation risk and the like of the existing photoaging treatment means (instruments / chemical drugs), develops an alternative scheme based on natural components, and provides a new application of natural and low-toxicity litsea cubeba oil or citral as an active component thereof in preventing and treating UVA-induced photoaging.

This application discloses a squalene / calcium phosphotungsten oleogel, its preparation method, and its applications, relating to the field of biomedical technology. The squalene / calcium phosphotungsten oleogel is composed of squalene and calcium phosphotungsten nanowires; by mass percentage, the calcium phosphotungsten nanowire content is 2-5%, and the squalene content is 95-98%. The squalene / calcium phosphotungsten oleogel exerts anti-inflammatory and antioxidant effects by scavenging excess ROS, and can restore cell membrane fluidity, weaken mechanosensitive YAP pathway activation, and synergistically promote photoaging repair and scarless healing through multiple pathways. This comprehensive regulatory strategy provides a new solution for skin damage repair.

The application discloses weather-resistant polyester and a preparation method thereof, and relates to the technical field of polyester fibers. The weather-resistant polyester is prepared from the following components in parts by mass: 90-110 parts of polyethylene terephthalate resin, 1-2 parts of a weather-resistant agent, 2-5 parts of a dispersing agent, 1.5-3 parts of a lubricant, and 5-15 parts of a nano functional filler. The weather-resistant agent is added to efficiently absorb ultraviolet light, block photoaging chain reactions, reduce performance degradation of the polyester in adverse environments such as ultraviolet light and heat and moisture, and effectively delay the aging process.

The application relates to the technical field of plastic rubber particles, and discloses an antibacterial TPE plastic rubber particle and a preparation method thereof. The antibacterial TPE plastic rubber particle comprises the following raw materials in parts by weight: SEBS 50-60 parts, polypropylene 20-30 parts, white oil 20-30 parts, sodium carboxymethyl cellulose 5-10 parts, antioxidant 1010 0.5-1 part, coupling agent KH550 1-1.5 parts, carbon fiber 2-3 parts, modified antibacterial agent 0.5-1 part, and modified light stabilizer 2-4 parts. In the application, the modified antibacterial agent is prepared through multiple mechanisms to synergistically resist bacteria, can inhibit bacterial reproduction and metabolism, and reduces the pollution risk caused by the breeding of microorganisms; the modified light stabilizer is prepared, can efficiently absorb ultraviolet rays and block the photoaging chain reaction, effectively resists the erosion of ultraviolet rays on the plastic, and prolongs the service life of the product.

The invention belongs to the technical field of cosmetics, and particularly relates to a cyclic peptide capable of resisting ultraviolet damage and application of the cyclic peptide in cosmetics. The structure of the cyclic peptide is shown as a formula (I) or (II). The cyclic peptide can effectively reduce generation of ROS induced by ultraviolet, scavenge free radicals, inhibit expression of MMP-1 and promote synthesis of COL1A1, so that the effects of resisting light aging and repairing skin injury are achieved. (I) (II)

The invention discloses a moisturizing and soothing composition containing algae and fungus fermentation products as well as a preparation method and application of the moisturizing and soothing composition. The composition is prepared from the following components in percentage by mass: 70 to 80 percent of lotus water, 0.5 to 1.5 percent of tremella fuciformis extract, 0.5 to 1.5 percent of yeast beta-glucan, 1 to 3 percent of 1, 2-hexanediol, 0.1 to 1 percent of dipropylene glycol, 0.1 to 0.5 percent of saccharomycetes / laminarin fermentation product and the balance of butanediol. The core components of the composition comprise lotus water, a yeast / laminarin fermentation product, a compound tremella fuciformis extract and yeast beta-glucan for enhancing the skin barrier function. High-content lotus water is used as a natural solvent, and butanediol and dipropylene glycol are combined to optimize the stability and permeability of active ingredients; 1, 2-hexanediol provides a mild preservative effect, so that the dependence of a traditional preservative is reduced. The composition can effectively scavenge free radicals and improve skin problems caused by photoaging, is suitable for post-medical repair and daily anti-aging care, and has the characteristics of low irritation, high biocompatibility and the like.

The utility model belongs to the technical field of aging test boxes, and particularly relates to an ultraviolet aging test box. Comprising a placing screen plate which is detachably installed in a test cavity through an adjustable support so as to adjust the distance between the placing screen plate and an ultraviolet lamp tube; the ultraviolet lamp tubes and the spraying tubes are arranged at the top of the test cavity in a staggered and spaced manner in the longitudinal direction; the lower end of the spraying pipe is communicated with a water supply tank at the bottom of the box body through a water pump; the water accumulation disc is arranged at the bottom of the test cavity, and an annular electric heating pipe is arranged in the water accumulation disc; a water adding pipe and an overflow pipe are further arranged on the water collecting disc and are respectively communicated with the water supply tank. By means of the structure of the water supply tank, the spraying pipe, the water collecting disc and the overflow pipe, the humidifying and spraying functions can be integrally utilized in one water supply device for recycling, and the advantages of being compact in structure and capable of utilizing space are achieved.

A UV photoaging device, belonging to the field of photovoltaic module aging devices, is characterized by comprising a housing, a support frame, and a light source array; both the support frame and the light source array are housed within the housing; the support frame comprises several units; and the support frame is positioned on both sides of the light source array. By employing a light source array and vertically arranging it within the housing, the layout within the housing is optimized, resulting in a smaller device size. Simultaneously, placing the test sample on both sides of the light source array maximizes the light energy utilization rate of the array. The entire UV photoaging device has a simple structure, is easy to operate, and is suitable for widespread application.

The application discloses an anti-ultraviolet LCP material and a preparation method thereof, and belongs to the technical field of anti-ultraviolet high polymer material preparation. LCP resin, ultraviolet absorber, light stabilizer, zinc acetate and benzoic acid are added into a reaction container, and after being uniformly mixed, benzoyl peroxide is added and stirred, the temperature is raised to 120-150 DEG C under a nitrogen atmosphere, and the reaction is kept for 40-90 min; the temperature is continuously raised to 200-240 DEG C, and the reaction is kept for 20-40 min, then the temperature is raised to 280-310 DEG C, and the reaction is kept for 2-3 h, and the LCP double-grafting composite anti-ultraviolet additive is obtained after the reaction is completed; the LCP double-grafting composite anti-ultraviolet additive is mixed with LCP resin and antioxidant, and is blended, extruded and granulated by using a double-screw extruder, so that the anti-ultraviolet LCP material is obtained. The ultraviolet absorber is grafted on the LCP molecule through free radical grafting and esterification reaction, the grafting rate is improved, the anti-ultraviolet effect is coordinated with the light stabilizer and the antioxidant, and the ultraviolet light aging is inhibited.

The invention discloses a preparation method and application of beta-glucan, and belongs to the technical field of bioengineering.The preparation method comprises the steps that saccharomyces cerevisiae genetically engineered bacteria producing beta-glucan are treated in the mode that autolysis and high-temperature extraction are combined, mannan in yeast cell walls is removed, then specific ultrasonic treatment and impurity removal are conducted, and the beta-glucan is obtained. And the beta-glucan is prepared at a high extraction rate. After beta-glucan is prepared, carboxymethyl glucan prepared through carboxymethylation modification can be used for repairing and protecting ultraviolet radiation skin light aging, and is used for skin oxidation resistance, inflammation inhibition and skin collagen stability maintenance. The method is used for efficiently preparing the beta-glucan.