52 results about "UVB Radiation" patented technology

The present invention is directed to compositions for anti-acne sunscreen. The sunscreen composition has the unique ability to treat and prevent acne in addition to screen both UVA and UVB radiation. In particular, the sunscreen composition includes a sunscreen base, at least one UVA deactivator, at least one UVB deactivator, and at least one anti-acne agent. The UVA deactivator may be avobenzone and the UVB deactivator may be selected from one of the following oxybenzone, octisalate, octyl methoxycinnamate, or a mixture thereof.

A topically applied sunscreen composition is provided, which by use of nano-sized particles of a physical UV screening agent in a dermatologically acceptable carrier, provides a dermatologically acceptable level of SPF and broad spectrum protection from UVA and UVB radiation, without the need to include chemical UV screening agents in the composition.

Compositions and methods are provided for ameliorating various effects of UVA and UVB radiation, especially from the sun. The compositions include an ingredient that prevents photoaging from MED and subMED radiation, namely an MMP (matrix metalloproteinase) inhibitor, especially formulated for oral administration, and more especially formulated for controlled-release so as to provide the MMP inhibitor when MMP induction (including upstream signalling molecules like c-JUN, and / or MMPs like stromelysin) is most prevalent.

Compositions and methods are provided for ameliorating various effects of UVA and UVB radiation from the sun. The compositions include an ingredient that prevents photoaging from MED and subMED radiation, namely a direct acting MMP (matrix metalloproteinase) inhibitor. The compositions can include another, indirect MMP inhibitor, such as a retinoid, certain other compounds (such as N-acetylcysteine, 2-furildioxime, and vitamin C), tetracyclines, and if a retinoid is used then in addition optional compounds that inhibit the CYP-26 (chytochrome P-450) mediated metabolism of retinoids such as ketoconazole and other azole compounds. In the method, the composition is applied prior to exposure to the sun; for direct acting MMP inhibitors, application should be just prior to exposure, and if indirect inhibitors such as retinoids are used in addition, then application of the indirect inhibitor should be at least about seven hours prior to exposure. Compounds that prevent erythema (skin reddening, sunburn) do not necessarily protect against UV-mediated elevation of MMP levels and activity, and similarly compounds that prevent UV-mediated elevation of MMP levels and activity are not necessarily effective against UV-induced erythema.

The present invention is directed to a combination of a mercury arc lamp placed in a reflector bulb and an electronic ballast to ballast the same. Use of the combination for projecting UVB and UVC radiation is also taught. The combination finds particular application for reptiles and birds that require UVB radiation but low power. The invention can also be used as a germicide, a source of UV for human beings and to treat skin diseases such as psoriasis. It can further be used for curing materials. The combination is advantageously portable, and can be adapted to be clipped on to an object.

The invention provides a preparation method of a cell nutrient solution for promoting hair regeneration. The preparation method mainly comprises three steps: 1) primary isolation of ADSCs (adipose-derived stem cells); 2) enlarged cultivation of the ADSCs; and 3) induced culture of the ADSCs. The cell nutrient solution prepared by the invention can solve the problem of alopecia from the point of cell regeneration; the ADSCs-conditioned medium (the nutrient solution), in a periodic hair follicle reconstruction process, can activate a stem cell microenvironment of hair follicle and can regulate and control the normal growth of the hair follicle; by conducting low-dose UVB radiation, ADSCs survival, migration and paracrine capacities can be significantly improved, and an angiogenesis capacity and a hair regeneration capacity can be also obviously improved; by cultivating the ADSCs with a fibroblast-conditioned medium, cell survival and metabolism processes in a body environment can be simulated, and the secretion of more cell factors, which are conducive to cell microenvironment regulation and control, from cells can be promoted; and meanwhile, the cell nutrient solution prepared by the method is convenient in cell preparation, broad in source and convenient for clinical popularization, and cells can be derived from fat wastes obtained from clinical liposuction and skin grafts removed in other surgical operations.

A photostable cosmetic composition for protection against UVA and UVB radiations of wavelengths between 280 and 400 nm, which comprises, in a cosmetically acceptable vehicle:(i) at least one UVA-sunscreen agents absorbing predominantly in the UVA-range;(ii) at least one UVB-sunscreen agents absorbing predominantly in the UVB-range;(iii) at least 0.1% by weight of a 2-hydroxy sulfobetaine of cinnamidoalkyl amine compound.

A method of treating or prophylactically treating immunosuppression or allergic and inflammatory symptoms of skin caused by UVB radiation which comprises applying to the skin a cosmetic or dermatological composition which comprises one or more flavonoids.

Disclosed are stable sunscreen compositions and corresponding methods for their use that are effective in protecting skin from UVA and UVB radiation. The composition uses a combination of ingredients to effectively and stably solubilize sunscreen agents to create a stable formulation.

The invention relates to a method for determining an integral sun protection factor (¿‹ SPF or iSPF) which encompasses both UVA and UVB radiation and can be used for classifying cosmetic and dermatological sunscreens. The method comprises the steps of applying a defined amount of the sunscreen onto a defined area of a skin substrate impregnated with a spin trap, exposing the skin substrate to a defined amount of UVA- and UVB rays by a sun simulator, subjecting the skin substrate exposed to radiation to an electron spin resonance (ESR) measurement, recording the number of free radicals trapped as a real number x 1012 free radicals / mg of skin sample, and determining the integral sun protection factor ¿‹ SPF according to the equations (1) and (2) and (8).

An ultraviolet protective panel having two layers of woven fabric that have UV transmissibility properties and combine to make an ultraviolet protective panel with a transmissibility to UVA and UVB radiation that is less than 1%. Muga silk or a flexible fabric treated with aluminum powder and impregnatable oil is preferably one of the two layers, and preferably the top or outer layer. Synthetic polymers are avoided. The panels are shaped to have multiple uses in producing articles of manufacture, including umbrellas, sleeves, awnings, tents, sheets, and garments. Each layers weave is different or the two weave orientations are not parallel. Garment sleeves may have straps for fastening and retaining and may have elastic panels.

The invention relates to topical compositions comprising a fluorescent dye that absorbs UVA and UVB radiation and converts it into a healing light, in combination with a dermatologically acceptable excipient. The compositions of the invention are useful for repairing photo-damaged skin cells and reducing or preventing future skin damage as a result of exposure to UV light.

The invention relates to, UV-converter for transforming radiation of wavelengths above 200 nm to UVA and UVB radiation, having at least a light transmitting sheet (11, 12), with a luminescent coating (13) on one side of the sheet. According to the invention, the light transmitting sheet is of a material suitable for filtering out the UVC radiation, the luminescent coating on the surface of the light transmitting sheet is isolated from humidity, and the luminescent material comprises a phosphor for generating a UV spectrum specified for the solarium lamps. The invention further relates to UV-converter, UV lamp arrangement with the UV-converter, and a lighting unit comprising the UV lamp arrangement.

The invention discloses a method for planting lettuce. The method mainly includes the following steps of land treatment, seed soaking treatment, seeding, seedling stage management and field management. Compared with the existing lettuce planting technology, the method has the quite remarkable advantages that when lettuce is planted in the technical scheme, environment-friendly and pollution-free effects are achieved, the growing speed of lettuce is high, plants are robust, and stress resistance is high; due to soil treatment, the physical characteristics of soil can be changed, bacteria and fungi in soil can be killed, the fertility of soil can be improved, growth and development of lettuce can be promoted, and the yield of lettuce can be increased; as manual UVB radiation is adopted for irradiation in the beginning of the two-leaf-one-terminal-bud period of lettuce, the thickness of vanes can be increased, the photosynthetic speed based on unit leaf area can be increased, growth and development of lettuce can be promoted, and the quality of lettuce can be improved.

The invention relates to a micrococcus fermentation method and a composition thereof. According to the scheme, the method comprises the following steps: S1, activating a micrococcus strain; S2, screening the microsphere strains in a UVB radiation environment, screening out survival microsphere strains, and carrying out enlarged culture; S3, inoculating the stable-phase micrococcus survived in theS2, and carrying out fermentation culture; and S4, performing decoloration on the fermentation broth obtained in S3, performing odor removal, performing filtration and impurity removal, obtaining a micrococcus fermentation product, wherein the composition comprises the micrococcus fermentation product and further comprises one or more of a solubilizer, a preservative, an antioxidant, a pH regulator, a penetration enhancer, lipidosome, a humectant, a thickener, a chelating agent, a skin feeling regulator, a surfactant, an emulsifier, essence and pigment. The composition has more efficient antioxidant activity and is more suitable for skin conditioning.

The invention provides compositions and methods for ameliorating various effects of UVA and UVB radiation from the sun. The compositions including an ingredient that prevents photoaging from MED and subMED radiation, such as a retinoid, certain other compounds (such as N-acetylcysteine, 2-furildioxime, and vitamin C) and optionally other MMP inhibitors such as tetracyclines and / or compounds that inhibit the P-450-mediated metabolism of retinoids such as ketoconazole and other azole compounds. In the method, the composition is applied prior to exposure to the sun; depending upon the ingredients used in the composition, application should be from 7 to 48 hours prior to exposure. Compounds that prevent erythema (skin reddening, sunburn) do not necessarily protect against UV-mediated elevation of MMP levels and activity, and similarly compounds that prevent UV-mediated elevation of MMP levels and activity are not necessarily effective against UV-induced erythema.

A theaflavin composition comprising: theaflavin-3 '-gallate, or a separation mixture of theaflavin-3 '-gallate and one or more of theaflavin, theaflavin-3'-gallate or theaflavin-3, 3 '-gallate, or salt or derivative, hydrate or solvent compound of theaflavin-3 '-gallate capable of being obtained in the field of skin care products, and a skin care product carrier or a pharmaceutically acceptable carrier. The theaflavin composition can improve the activity of antioxidant enzyme, reduce the content of MDA and ROS, repair mitochondrial membrane potential to a certain extent and further reduce oxidative damage of UVB radiation to cells, thereby resisting photoaging damage of ultraviolet radiation to human skin. On the other hand, theaflavin-3'-gallate TF3 'G can effectively inhibit inflammatoryresponse caused by UVB radiation and reduce generation of HaCaT intracellular aggregates, and has a wide prospect in preparation of skin care products or drugs for preventing photoaging.

The invention discloses a high-responsivity visible blind organic UVB optical detector which comprises a substrate, a conducting layer, an organic hole transport layer, an organic active layer and a transparent metal electrode layer, wherein the conducting layer, the organic hole transport layer, the organic active layer and the transparent metal electrode layer are arranged on the substrate sequentially from bottom to top. According to the invention, through designing an organic active layer molecule structure, on the one hand, UVB light is not absorbed in a visual light region and a device is avoided being interfered by a visual light signal, on the other hand, the contradiction between a conjugation length and a migration rate of an organic active layer material is considered, and high response of UVB radiation is realized. Because the device uses one side of the transparent metal electrode layer as a signal incoming surface, no special requirement exists for the transparency of the substrate and the conducting layer, and the integration of the device on the substrate is facilitated.

The subject matter of the present invention relates to an irradiation apparatus for irradiating a human body, with at least two types of tubular low-pressure lamps which emit UVA and / or UVB radiation and which are alternatingly disposed so as to lie parallel and close to one another, covering at least part of a radiation field, with the low-pressure lamps of the second type B emitting a higher UVB radiation than the low-pressure lamps of the first type A, with the diameter of the low-pressure lamps of the second type B being smaller than the diameter of the low-pressure lamps of the first type A, i.e., with the diameter ratio being approximately 5:12, with the low-pressure lamps of at least the second type B, preferably also the low-pressure lamps of the first type A, having a length of at least 120 cm, preferably at least 180 cm, and with the low-pressure lamps of the first type A and the low-pressure lamps of the second type B being separately activated and with their erythemal power also being separately set, and with the low-pressure lamps of the second type B being pure UVB lamps.

The invention relates to a UVC radiation-resistant polycarbonate composition as well as a preparation method and application thereof. The polycarbonate composition comprises polycarbonate, SAN, ASA rubber powder, a triazine UV absorbent, a benzotriazole weather-resistant agent, a hindered amine weather-resistant agent, toner, an antioxidant, a metal deactivator and other processing aids. The polycarbonate composition provided by the invention not only has higher UVA and UVB radiation resistance, but also has higher UVC radiation resistance, can effectively prevent aging and yellowing of materials, and can be widely applied to ultraviolet sterilization products.

The invention relates to a flame-retardant polycarbonate composition and a preparation method and application thereof. The flame-retardant polycarbonate composition comprises polycarbonate, SAN, ASA rubber powder, a phosphazene flame retardant, a triazine UV absorbent, a benzotriazole weather-resistant agent, a hindered amine weather-resistant agent, an anti-dripping agent, toner, an antioxidant, a metal deactivator and other processing aids. The polycarbonate composition provided by the invention not only has better UVA and UVB radiation resistance, but also has better UVC radiation resistance so that the aging and yellowing of materials can be effectively prevented; and the flame-retardant polycarbonate composition has good flame retardant property and can be widely applied to ultraviolet sterilization products.

The invention provides a sunblocking cream which is natural and resists ultraviolet B (UVB) radiation and ultraviolet A (UVA) radiation, and can improve the resisting and defending capacity of the human body cells to ultraviolet radiation. The product comprises the following raw materials in parts by weight: 0.5-5 parts of zingiber corallinum hance essential oil, 0.5-1 parts of curcuma oil, 0.5-1parts of zedoary turmeric oil, 5-8 parts of emulsifier, 1-5 parts of humectant, 1-3 parts of active agent, 8-10 parts of excipient and 62.8-72.3 parts of pure water, and is prepared by the following steps: mixing and heating aqueous phase substances, namely the humectant, active agent and pure water to the temperature of 85-87 DEG C; evenly mixing and heating oil phase substances, namely the zingiber corallinum hance essential oil, curcuma oil, zedoary turmeric oil, emulsifier and excipient to the temperature of 85-87 DEG C; and slowly pouring the oil phase into the aqueous phase, stirring and evenly mixing, homogenizing for 5-10 minutes at the temperature of 85-87 DEG C, and cooling. The sunblocking cream of the invention resists the UVB radiation and UVA radiation, can improve the resisting and defending capacity of the human body cells to ultraviolet radiation, can promote skin cell division and accelerates self renewal of the skin cells; the skin does not generate erythema after being exposed to the sun, and can not be tanned; and the sunblocking cream has good sunblocking effect, low application cost, simple and feasible preparation method.

The invention discloses antarctic ice algae MAAs synthetases as well as coding genes and application thereof. The antarctic ice algae MAAs synthetases comprises MysA, MysB and MysC, the amino acid sequences of the MysA, the MysB and the MysC are respectively shown as SEQ ID NO.7, SEQ ID NO.9 and SEQ ID NO.11, and the nucleotide sequences of the coding genes of the MysA, the MysB and the MysC are respectively shown as SEQ ID NO.8, SEQ ID NO.10 and SEQ ID NO.12. Experiments prove that the coding genes of the three antarctic ice algae MAAs synthetases are cloned and converted into recombinant strains at the same time, the survival rate of the strains in UVB radiation can be effectively increased, the strains can be used for producing MAAs and intermediates thereof, and the produced MAAs has the effect of repairing cell DNA damage and cornea damage caused by ultraviolet radiation and has a high application value.

The invention provides a method for improving cucumber seedling and strong seedling production in a plant factory by using low-dosage UVB. A conventional LED light source is adopted in the plant factory seedling cultivation process and mainly comprises red and blue light wave bands, and according to the method, low-dosage UVB radiation is added on the basis of a low-light-intensity full-spectrum Sunlike LED light source. Through low-dose UVB radiation, the stress symptom of the cucumber seedlings is not caused, but the cucumber seedlings are promoted to show the growth characteristics of sunny plants in a weak light environment, specifically, the plant type is more compact, the leaf net photosynthetic capacity and the water utilization efficiency are higher, and the capacity of coping with high-intensity dynamic light stress is higher; according to the method disclosed by the invention, the production quality of cucumber seedlings and strong seedlings in a plant factory can be greatly improved by adding a low dosage of UVB radiation.

The invention discloses application of tremella spore exopolysaccharides to preparing aqua defense refreshing products, and an aqua defense refreshing toner containing tremella spore exopolysaccharides. The preparing process of the tremella spore exopolysaccharides includes the steps of firstly, taking supernate of tremella spore fermentation liquid, and adding absolute ethyl alcohol for precipitation; secondly, adding water to precipitates for dissolving, taking supernate, removing protein through a Sevage method, conducting centrifuging to obtain supernate, adding ethyl alcohol for precipitation, and freeze-drying precipitates to prepare the tremella spore exopolysaccharides. The purified exopolysaccharides have a quite good aqua defense effect, and even the defense effect is better thanthat of glycerinum; meanwhile, the exopolysaccharides have a quite good anti-oxidization effect and can be applied as aqua defense active components and anti-oxidization active components to preparing the skincare products; the prepared skincare products have a quite good aqua defense effect and meanwhile have a function of repairing cell injuries caused by UVB radiation.

The invention discloses sargassum fusiforme polysaccharide with remarkable anti-photoaging activity and an application thereof. The molecular weight of the sargassum fusiforme polysaccharide is 28-130 kDa, the content of uronic acid is 21-33 wt%, the content of reducing sugar is 2-7 wt%, monosaccharide is composed of fucose, galactose, glucose, xylose, galacturonic acid and glucuronic acid, and the molar ratio of the fucose to the galactose to the glucose to the xylose to the galacturonic acid to the glucuronic acid is (39-46): (16-17): (2-3): (4-5): (10-16): (20-22). The sargassum fusiforme polysaccharide can improve the survival rate of human immortalized epidermis cells HaCaT and the content of hydroxyproline after UVB radiation, reduces the levels of matrix metalloproteinases MMP-1 and MMP-3, has remarkable anti-photoaging activity, can be used for development of anti-photoaging drugs or functional foods, and has important significance for deep processing of sargassum fusiforme.

The invention relates to the field of biomedicine, and discloses application of miRNA-195a-5p to preparation of a product for treating or detecting UVB radiation induced acute skin injury. The invention provides a new target miRNA-195a-5p for regulating the UVB radiation induced skin acute injury and related diseases; the expression level of the miRNA-195a-5p in a mouse with UVB radiation inducedinjury is obviously reduced, and is obviously different from that of the miRNA-195a-5p in a normal mouse, thus showing that the miRNA-195a-5p plays a certain regulating role in the UVB radiation induced skin acute injury; and the target miRNA-195a-5p has important application value in detection and treatment of the UVB radiation induced acute skin injury and the related diseases.

The invention belongs to the technical field of protein, and discloses an oyster protein source anti-skin photoaging octapeptide, and a preparation method and application thereof. The amino acid sequence of the oyster protein source anti-skin photoaging octapeptide is as follows: a) RKNEVLGK (SEQ ID NO.3); or b) an amino acid sequence which is obtained by substitution or deletion of one or more amino acids of the amino acid sequence as shown in SEQ ID NO.3 and has the same or similar functions. The octapeptide has antioxidant activity, can promote type I collagen precursor secretion, can inhibit MMP-1 expression, has a protection effect on keratinocytes, and can be used for preparing products for resisting skin photoaging or aging, preventing or repairing keratinocyte light damage caused by UVB, and preventing or improving skin damage caused by UVB radiation.