Abstract:
A mass spectrometry method includes a step of atomizing liquid including a sample using an ultrasonic transducer; a step of transferring the atomized liquid; a step of generating ions from the transferred liquid using a DART ion source; and a step of analyzing a mass spectrometry by introducing the generated ions into a mass spectrometer.
Abstract:
The present invention relates to a method for producing artificial skin, comprising: adding a matrix metalloproteinase inhibitor and a heparanase inhibitor to an artificial skin formation culture medium comprising human epidermal keratinocytes and human dermal fibroblasts, culturing the cells in the artificial skin formation culture medium, and forming artificial skin.
Abstract:
An oil-in-water type emulsified cosmetic and a method of making can be prepared in a system not containing a silicone and is surprising produced without a wet-type dispersion apparatus by using a specific combination of the oil component constituting the oily phase and a hydrophobizing agent for a hydrophobized powder. The composition includes an aqueous phase; an oily phase dispersed in the aqueous phase; and a powder dispersed in the oily phase. The oily phase comprises (a) volatile hydrocarbon oil and (b) non-volatile hydrocarbon oil in a combined amount of 40% by mass or more with respect to the total oil content, wherein the blending ratio of (b) non-volatile hydrocarbon oil to (a) volatile hydrocarbon oil, [(b)/(a)], is within a range of 0 to 2.5, and the powder comprises a powder having a surface hydrophobized by a treatment with a metallic soap consisting of a higher fatty acid and a divalent metal or a composite treatment with a higher fatty acid and a divalent metal hydroxide.
Abstract:
The present invention provides a corona-core microgel emulsifying agent composed of a copolymer obtained by polymerizing polyethylene oxide macromonomers, hydrophobic monomers, and cross-linking monomers under specific conditions as well as an oil-in-water emulsified composition characteristically using said emulsifying agent for emulsification.The object of the present invention is to provide a new corona-core microgel emulsifying agent to be used to prepare an oil-in-water emulsified composition that manifests superior emulsification stability, stability over time, and low skin irritation, and is free of stickiness at the time of application, manifests dewy freshness, is free of powdery sensation and/or squeakiness, and is superior in durability of fragrance, as well as an oil-in-water emulsified composition emulsified with said emulsifying agent.
Abstract:
The present invention provides an oil-in-oil type cosmetic composition that has excellent transfer resistance after application, a luster, favorable spreadability during application, and also excellent stability. The oil-in-oil type cosmetic composition comprises (a) 5 to 80% by mass of non-volatile hydrocarbon oil, (b) 1 to 70% by mass of non-volatile silicone oil, and (c) 0.1 to 10% by mass of dextrin fatty acid ester. Preferably, the non-volatile hydrocarbon oil (a) and the non-volatile silicone oil (b) are formulated at a ratio (mass ratio) of (a)/[(a)+(b)]=0.4 to 0.8.
Abstract:
The present invention provides a highly stable fragrance-containing capsule. This fragrance-containing capsule is characterized in being obtained from: a core substance comprising a specified fragrance, such as 3-octanol, and an oil; and a wall material formed from one or more polymers selected from poly(alkyl(meth)acrylates) and polystyrene.
Abstract:
An evaluation method for evaluating an ultraviolet radiation protection effect in a measurement sample applied on an application member includes the first step of switching to a first filter for measuring a spectral transmittance before photodeterioration by emission of light from a light source, and measuring the spectral transmittance, the second step of switching to a second filter for ultraviolet irradiation and causing the photodeterioration by the emission of the light after the measurement by the first step, and thereafter, switching to the first filter and measuring the spectral transmittance, and the third step of evaluating the ultraviolet radiation protection effect based on a change over time in the spectral transmittance obtained by the second step. Each of the first and second filters includes multiple light source filters. The first filter includes ND filters switchable in accordance with the light amount of the light source in the light source filters.
Abstract:
A mass spectrometry method includes a step of atomizing liquid including a sample using an ultrasonic transducer; a step of transferring the atomized liquid; a step of generating ions from the transferred liquid using a DART ion source; and a step of analyzing a mass spectrometry by introducing the generated ions into a mass spectrometer.
Abstract:
The present invention provides a water-in-oil type emulsion cosmetic composition with low viscosity while having excellent stability sufficient to withstand the inclusion of a polar oil. A water-in-oil type emulsion cosmetic composition of the present invention is characterized by comprising: (A) 0.1 to 2 mass % of an organically modified clay mineral; (B) 0.1 to 2 mass % of a hydrophobic silica; (C) 2 to 5 mass % of a silicone-type surfactant; (D) an oil component of which 10 to 50 mass % of the total oil component is a non-polar hydrocarbon oil; and (E) 20 to 60 mass % of a water phase component; wherein the (A) organically modified clay mineral and (B) hydrophobic silica total to 0.2 to 2 mass %; and a viscosity of the cosmetic composition as a whole is 1000 to 10000 mPa·s (30° C.; B type viscometer).
Abstract:
Provided is a redispersible powder-dispersed cosmetic which has a clear supernatant when unused, can exhibit good powder redispersibility when shaken upon use, has a good sensation, e.g., smoothness and non-stickiness, upon application to the skin, and has an excellent effect of dissolving/removing keratotic plugs. The cosmetic is characterized by comprising (A) succinic acid and/or a salt thereof, (B) bentonite and (C) a hydrophilic surfactant. Particularly preferably, the cosmetic additionally comprises a cellulose powder. It is preferred that the component (A), i.e., succinic acid and/or the salt thereof, is contained in an amount of 0.01 to 10.0 mass % relative to the total amount of the cosmetic.