6 results about "Ultraviolet a" patented technology

The present invention relates to a method for providing a high Sun Protection Factor (SPF) and UVA Protection Factor (UVAPF) to topical surfaces of the human body. The method provides a synergistic benefit of SPF and UVAPF that exceeds that which can be achieved through two separate, sequential steps: cleansing followed by application of a leave-on composition to the same skin surface. The method involves cleansing the skin with a foam composition containing a water-soluble sunscreen, generated from a container equipped with a pump, followed by application of a leave-on composition that may include an optional sunscreen.

The application discloses a breathing machine for promoting human body gas exchange, and relates to the field of breathing machines, which comprises a valve body bin, a valve body for controlling air inlet and air outlet is installed in the valve body bin, further comprises a main machine bin, a negative oxygen ion generator is installed in the main machine bin, and a fixing cylinder is connected to the air outlet end of the negative oxygen ion generator, a quartz tube is sleeved in the fixing cylinder, and a long-wave ultraviolet light generating mechanism is installed in the center of the quartz tube. The lamp column capable of emitting long-wave ultraviolet light arranged in the fixing cylinder is used for eliminating the ozone generated by the negative oxygen ion generator, while maintaining the negative oxygen ion level of the gas flowing through the fixing cylinder, thereby effectively avoiding that the air passing through the negative oxygen ion generator generates too much ozone to endanger the health of the user.

Compositions and methods for treating a subject with psoriasis are provided, including an inhibitor of oxidized low density lipoprotein (LDL), malondialdehyde-modified epitope in LDL or native LDL for administration. Exemplary inhibitors of oxidized or malondialdehyde-modified LDL include orticumab, a variant antibody or peptides capable of binding oxidized or malondialdehyde-modified LDL, which results in improvement in conditions of psoriasis even in patients that are refractory to ultraviolet A / B therapy and topical steroids.

The present application relates to the field of cosmetic technology, and in particular to an emulsified sunscreen and makeup fixing spray and a preparation method thereof.The spray comprises, by weight percentage, 25-40% of an oil phase composition, 1-5% of a powder composition, 0.1-2% of an active composition, and the balance of an aqueous phase composition; the aqueous phase composition comprises a water-soluble film-forming agent and a water-soluble sunscreen agent; and the oil phase composition comprises an oil-soluble film-forming agent and an oil-soluble sunscreen agent.The spray forms a strong, transparent and continuous composite film on the skin after spraying, and has stable sunscreen and makeup fixing effects, can effectively block ultraviolet radiation, effectively improve the long-wave ultraviolet protection index (SPF value) and the long-wave ultraviolet protection index (PFA value) of sunscreen cosmetics, and has a long-lasting makeup effect.

The invention discloses an ultraviolet A-band fluorescent carbon dot with high quantum yield and a preparation method thereof. According to the method, hydroquinone, hydrochloric acid and water in a certain ratio are used as reaction raw materials, hydrochloric acid and water are used as reaction solvents at the same time, and the target carbon dots are obtained through the steps of solvothermal reaction, extraction, filtration and the like. The fluorescent carbon dots prepared by the method can emit ultraviolet A-band fluorescence in both a solution phase and a solid state, and the quantum yield in the solution phase is as high as 30.5%. The purified carbon dots are uniform in size distribution, the particle size range is 1.8-5.6 nanometers, and the average particle size is 3.6 nanometers. The raw materials are cheap and easy to obtain, the process is simple and convenient, the purification process consumes short time, and large-scale production of the ultraviolet A-band fluorescent carbon dots can be achieved. The prepared carbon dots have wide application prospects in multiple fields of sterilization and disinfection, ultraviolet curing, photoelectric devices, plant illumination, insect trapping and the like.

An intelligent diagnostic toilet system for automated stool analysis, consisting of: a diagnostic chamber integrated into the drainage path of a toilet system, wherein the chamber is equipped with a hydrophobic and oleophobic optical window made of quartz or coated acrylic material, configured to allow multispectral light transmission while preventing contamination; a multispectral optical sensor module positioned next to the diagnostic chamber and configured to emit and detect reflected or transmitted light in at least the visible, near-infrared (NIR) and ultraviolet A (UV-A) ranges to quantify stool components including water content, lipid content, hemoglobin and bile pigments; a fluidically coupled unit with the diagnostic chamber for the detection of volatile organic compounds (VOCs), comprising a variety of solid-state gas sensors selected from the group consisting of metal oxide semiconductor, conductive polymer and ion mobility sensors, and configured to measure gases containing ammonia, hydrogen sulfide, methane and volatile fatty acids; a chemical test system comprising an interchangeable cartridge assembly containing a plurality of reagent-impregnated filter paper strips, wherein the cartridge is connected to a swab actuator configured to dispense a micro-amount of stool onto one or more reagent strips to trigger colorimetric chemical reactions; an imaging unit that is optically aligned with the aforementioned chemical test system to acquire multispectral colorimetric data of the reacted reagent strips and thus determine the presence of specific biochemical markers; a self-cleaning subsystem consisting of an array of micro-nozzle spray nozzles directed at the optical window and chamber surfaces for applying cleaning fluid, and a UV-C sterilization module located inside or near the chamber to decontaminate the surfaces after each analysis cycle; and an embedded processing unit operationally connected to the multispectral optical sensor module, the VOC detection unit and the imaging unit, wherein the processing unit performs a data fusion technique configured to correlate spectral, gaseous and colorimetric data to determine stool properties, generate diagnostic indices and output user-specific health assessments via an encrypted communication interface.