65results about How to "Unique optical properties" patented technology

The invention relates to a molybdenum disulfide based sensor as well as a preparation method and an application thereof and belongs to a protein detection method in the biomedical field. According to the technical scheme, the method mainly comprises steps as follows: firstly, an MoS2-AuNP compound is prepared; a nucleotide aptamer of thrombin is synthesized; the synthesized nucleotide aptamer is added to an aqueous solution of MoS2-AuNP, Tween 80 is added, a mixed solution is obtained, reacts for 30 min at the room temperature, then is heated for 2.5 h in a water bath with the temperature of 70 DEG C and is centrifuged at the speed of 10,000 r for 15 min, and then, precipitates are dispersed in a 0.1 M PBS (phosphate buffer solution); and the sensor is prepared. The characteristic that MoS2-AuNP can quench fluorescence is sufficiently utilized, an FAM (carboxyfluorescein)-marked nucleotide aptamer sequence is combined with thrombin specificity, trace detection of thrombin can be realized in a high-sensitivity, rapid and low-cost manner through quenching and recovery of FAM fluorescence, and the actual LOD (limit of detection) of the MoS2-AuNP-nucleotide aptamer sensor to thrombin is increased to 0.4 pM due to addition of Tween 80.

The invention provides a preparation method for a multi-color film, relating to a preparation method for a film. The objective of the invention is to overcome the problem that an inverse opal photonic crystal has a single response to a single outside stimulus, i.e., a single change in color, in the prior art. The preparation method comprises the following steps: 1, preparing a SiO2 seed; 2, preparing a SiO2 colloidal microsphere; 3, carrying out washing and drying; 4, preparing a SiO2 colloidal crystal template; 5, preparing a PMMA composite film; and 6, carrying out stretching. The multi-color film prepared in the invention is a photonic crystal with an inverse opal structure and has an ordered porous structure; meanwhile, the multi-color film has a certain orientation degree in a certain direction, so characteristics of the film in the field of a three dimensional structure are maintained. The preparation method provided by the invention is used for preparing the multi-color film.

The present invention relates to methods for classifying patients suffering from a solid cancer, particularly to methods for the prognosis of the survival time of a patient suffering from a solid cancer and / or to methods for assessing the responsiveness of a patient suffering from a solid cancer to antitumoral treatment. The method is based on quantifying multiple immune response markers and determining to which percentile of the distribution the values correspond when compared to a reference distribution. Calculating the mean or median of the determined percentiles of the different markers and comparing this value to a reference value of the mean- or median percentiles, the result of which is correlated with survival or responsiveness

The invention discloses an ultra-low density block-shaped fully stabilized zirconia gel and a preparing method thereof. Zirconium oxynitrate serves as precursors, yttrium nitrate or calcium nitrate and or magnesium nitrate serves as stabilizing agents, Y203:ZrO2=17-23%, CaO:ZrO2=10-20%, ZrO2=20%-30%, 1 and 2-epoxypropane serves as gel accelerant, and preparation utilizes epoxypropane distribution droplets. The density of aerogel is set between 0.03-0.12 g / cm<3>, porosity is set between 98% and 99.5%, the average pore size is 120-210 nm, and specific surface areas are 630-650 m<2> / g. The fully stabilized zirconia gel is of the amorphous phase structure before heat treatment, and when heat treatment achieves 800-1000 DEG C, the cubic phase is formed. The ultra-low density block-shaped fully stabilized zirconia gel is used for acoustic resistance coupling material, catalytic agents, catalytic agent carriers, high-efficiency heat-insulation material, preparation of high-efficiency charging batteries, and the like.

The invention provides a double-ligand europium-based metal organic framework material and a preparation method and application thereof. The preparation method comprises the following steps: adding europium nitrate hexahydrate, 1, 10-phenanthroline and pyridine-3, 5-dicarboxylic acid into deionized water, then adding a 2mol / L sodium hydroxide solution to be alkaline, carrying out a constant-temperature reaction at 80-90 DEG C for 70-75h, cooling to room temperature, and finally, sequentially carrying out washing, ultrasonic treatment and drying, thereby obtaining the double-ligand europium-based metal organic framework material. The invention also comprises the double-ligand europium-based metal organic framework material prepared by the preparation method and application of the double-ligand europium-based metal organic framework material in copper ion detection. The double-ligand europium-based metal organic framework material is prepared and applied to fluorescence detection of copper ions, and the problems that in the prior art, detection equipment is large in occupied space, complex in operation, high in cost and the like are effectively solved.

The invention discloses a preparing method of a solar photovoltaic assembly glass surface composite film, and a preparing method of solar photovoltaic assembly glass. The technical problems that an existing method for improving the photovoltaic power generation efficiency of a photovoltaic device through rare earth elements is high in cost, poor in ultraviolet light utilization and poor in composite transparency are solved. The method includes the steps of firstly, preparing a carbon quantum dot solution; secondly, preparing silica sol; thirdly, mixing the carbon quantum dot solution and the silica sol to obtain sol for film coating; fourthly, coating the surface of the solar photovoltaic assembly glass with the sol for film coating to obtain the solar photovoltaic assembly glass surface composite film. The method can be used for the photovoltaic device.

The invention provides a BOPA matt film, which has a three-layer structure consisting of a surface layer, a core layer and a matt layer, wherein the surface layer comprises 0 to 1 weight percent of antiblocking agent, 0 to 1 weight percent of slipping agent and the balance of nylon-6 resin; the core layer is nylon-6 resin; the matt layer comprises 98.5 to 100 weight percent of matt material and 0 to 1.5 weight percent of slipping agent; and the three-layer structure of the BOPA matt film is formed by extrusion and bidirectional drawing. The invention also provides a method for manufacturing the BOPA matt film.

The invention belongs to the technical field of polymer materials, and particularly relates to polyacrylic acid rare earth fluorescent gel and a preparation method thereof. The preparation method comprises the following steps: preparing a mixed solution of polyacrylic acid and a rare earth salt, dropwise adding a sodium carbonate solution into the mixed solution while stirring so that hydrogel isgradually formed along with the addition of the sodium carbonate solution, and washing to obtain a product, wherein the molecular weight of the polyacrylic acid is 100,000 to 250,000. The polyacrylicacid gel prepared by the method has unique optical properties of rare earth ions and plasticity of physical cross-linked gel, is simple and convenient to prepare and easy to operate, has universalityto the rare earth ions, and has a great application prospect in the aspects of biomedicine, optical devices, counterfeiting prevention and the like.