392results about How to "Long fluorescence lifetime" patented technology

A display panel includes a first substrate, a lighting device emitting a monochrome light, and a color conversion layer comprising a quantum dots layer. The display panel defines a plurality of pixel areas, each pixel area includes a plurality of sub-pixels for correspondingly emitting light of different colors. The color conversion layer receives the monochrome light and converts the monochrome light to the light of different colors.

An immune chromatographic method includes fixing capture antigen or antibody directly on chromatographic film (PH) by physical absorption means, adding sample liquid and label antibody on sample cushion side of PF and forming immmune composite through immune reaction, detecting formed detection and control belts, sticking PE, sample loading cushion, label cushion and water absorption cushion in sequence on backing. The test paper is also disclosed.

The invention discloses a method for highly sensitive quantitative detection of quantum dot fluorescence immunochromatographic assay. The method includes: building a fluorescence immunochromatographic assay test strip on the basis of optimizing the structure of the test strip and components by the aid of excellent fluorescent characteristics of quantum dots and by means of combining quantum dot fluorescence labeling technology and immunochromatographic assay; detecting fluorescence signal strength of a quantitative belt and a quality control belt by the aid of a fluorescence quantometer and correcting the fluorescence strength of the quantitative belt by the aid of the quality control belt after immunochromatographic assay of the test strip; and further quantitatively detecting analyte according to a standard curve obtained by the fluorescence quantometer. The method is simple, rapid, accurate, low in cost and quite high in sensitivity. Compared with a conventional colloidal gold immunochromatographic assay method, the method has the advantages of fine labeling stability, low non-specificity, high sensitivity, wide linear range and accuracy in quantization. The method is applicable to samples such as blood samples, urine samples, spittle, excrement and the like, and can be applied to detection of critical illness, poison, food safety and the like.

The invention discloses a quantum dot multicolor marking method for quantitative detection of various cardiovascular disease markers and a kit of troponin I/creatine kinase isoenzyme/myohemoglobin. The method realizes fluorescent quantitative detection by utilizing excellent fluorescent properties of quantum dots and combining a multicolour marking technology and an immunochromatographic assay on the basis of optimizing each component of a test strip. Compared with the common collaurum immunochromatographic assay, the method has the advantages of good mark stability, low nonspecificity, high sensitivity, wide linear range, small cross interference, and accuracy in quantification. The kit disclosed by the invention is used for carrying out quantification detection on the troponin I, the creatine kinase isoenzyme and the myohemoglobin simultaneously, is suitable for detection of whole blood, blood serum and plasma samples, can provide a reference for cardiovascular and cerebrovascular disease diagnosis, and is widely applied to primary hospitals and clinics.

The present invention relates to an electroluminescence device based on a boron-containing organic compound, wherein a main body material comprises a first organic compound and a second organic compound, the difference between a singlet state energy level and a triplet state energy level of the first organic compound is not greater than 0.2 eV, the singlet energy level of the second organic compound is greater than the singlet energy level of the first organic compound by more than 0.1 eV, and the triplet energy level of the second organic compound is greater than the triplet energy level of the first organic compound by more than 0.1 eV; the first organic compound and the second organic compound have the different carrier transport characteristics, wherein an object material is the boron-containing organic compound, the singlet energy level of the object material is lower than that of the first organic compound, and the triplet energy level of the object material is lower than that ofthe first organic compound. An organic light-emitting device prepared by the method has the characteristics of high efficiency and long service life.

The invention relates to a full-inorganic perovskite cesium-lead-bromine quantum dot. Cesium-lead-bromine quantum dot colloid is generated through a nitrogen protection and heating method by adopting a thermal injection method which is easy to operate and using oleic acid and octadecene as a coordination solvent and a non-coordination solvent respectively, and the obtained full-inorganic cesium-lead-bromine colloid is good in dispersity, uniform in particle and high in luminous efficiency. The method is low in cost and easy and convenient to operate, and the obtained colloid can easily achieve film formation and is suitable for synthesizing other full-inorganic perovskite quantum dots. Compared with organic-inorganic hybrid perovskite, the full-inorganic perovskite nanocrystal has the advantages of being stable in property and capable of being compounded with other polymers to construct a novel perovskite semiconductor material and achieving a good application prospect in the aspects of solar cells, light emitting diodes, optical detectors, lasers and the like.

The invention relates t a phosphate base optical glass mixed with ytterbium and bismuth and a manufacturing method of the phosphate base optical glass. The compositions and mol percentage of the glass is that: P2O5(50-80), Al2O3(5-30), Ta2O3(0-5), Ga2O3(0-5), Y2O3(0-5) , Li2O(0-30), Na2O(0-15), K2O(0-5), ZnO(0-15), MgO(0-40), CaO(0-30), SrO(0-15), BaO(0-15), TiO2(0-5), ZrO2(0-5), SiO2(0-20), Bi2O3(0.01-5), Yb2O3(0.01-15); wherein the figures in the bracket refer to the selection range of mol percentage of the corresponding oxide of the compositions. Under the pump of 405nm, 532nm, 808nm and 980nm, higher near infrared ultra wideband fluorescence can be obtained; and under the pump of 980nm, the glass fluorescence emission has a remarkable reinforced effect and is hopeful to be applied in fields such as optical amplifier, superpower laser and tunable laser.

The invention discloses a fluorescent immunochromatography method for whole quantitative detection of C-reactive protein and a reagent kit thereof. The fluorescent immunochromatography method for the whole quantitative detection of the C-reactive protein (CRP) utilizes excellent fluorescent characteristics of quantum dots, and combines double-color marking technology and immunochromatography technology to achieve fluorescent quantitative detection on the basis of optimizing each constituent elements of test paper. Compared with a conventional colloidal gold immunochromatography method, the fluorescent immunochromatography method for the whole quantitative detection of the CRP has the advantages of being good in stability, low in non-specificity, high in flexibility, wide in linear range and accurate in quantifying. The reagent kit of the fluorescent immunochromatography method can perform the whole quantifying and can simultaneously predict and evaluate infectious diseases, antibiotic effects and cardiovascular and cerebrovascular diseases. The fluorescent immunochromatography method for the whole quantitative detection of the CRP and the reagent kit of the fluorescent immunochromatography method are suitable for various-level hospitals, and particularly contribute to wide popularization in basic-level hospitals and clinics.

The invention relates to a color conversion layer, an organic electroluminescent display panel, and a liquid crystal display panel. The color conversion layer comprises a plurality of color conversion units. Each color conversion unit includes quantum dot films. Each color conversion unit receives light rays of monochromatic light incident on the color conversion unit, converts the monochromatic light, and then, emits the monochromatic light in primary color components for color display. Each color conversion unit defines a plurality of areas, and each area corresponds to the emission of one primary color component.

The invention discloses a fluorescence immunochromatographic assay method for quantitatively detecting hFABP (heart fatty acid binding protein) and a kit for quantitatively detecting the same. The fluorescence immunochromatographic assay method for quantitatively detecting the hFABP realizes quantitative fluorescence detection on the basis of optimizing components of a test strip by the aid of excellent fluorescent characteristics of quantum dots and by means of combining bicolor labeling technique and immunochromatographic assay. Compared with a conventional colloidal gold immunochromatographic assay method, the fluorescence immunochromatographic assay method has the advantages of fine labeling stability, low non-specificity, high sensitivity, wide linear range and accuracy in quantization. The kit is used for quantitatively detecting the hFABP, can be used for simultaneously detecting whole blood, blood serum and plasma samples, serves as a simple, accurate, specific and inexpensive detecting tool for early screening and prognosis evaluation of acute myocardial infarction, is applicable to hospitals at all levels, and is particularly beneficial to wide popularization in primary hospitals and clinics.

The invention discloses a rate-type rare-earth fluorescent probe Tb/DPA@SiO2-Eu/GMP, a preparation method of visual test paper and an application thereof in the aspect of detecting bacillus-anthracis biomarker, namely 2, 6 dipicolinic acid (DPA). After the fluorescent probe is synthesized by a reverse microemulsion method, the quantitative detection for the concentration of the DPA is realized by utilizing a time-resolved fluorescence analysis method. Further, the portable visual test paper is prepared by soaking filter paper in a fluorescent probe solution, and can be applied to mobile-phone software for recognizing colors to detect the concentration of the DPA. The invention has the advantages that the currently-common traditional detection mode is changed, the complex operation process is not needed and the cost is saved. The invention has the characteristics of high accuracy, sensitivity and selectivity. The prepared test paper has the advantages of being convenient in carry and use, low in price and the like and has wide application prospect.

The invention discloses a fluorescence immunochromatographic assay and kit for quantitatively detecting acute myocardial infarction marker, namely, N-terminal pro brain natriuretic peptide (NT-proBNP). The fluorescence immunochromatographic assay for quantitatively detecting the NT-proBNP realizes fluorescence quantitative detection on the basis of optimizing various constituent parts of test paper by using excellent fluorescence characteristic of quantum dots and combining a bicolor marking technology and an immunochromatographic technology. Compared with the conventional colloidal gold immunochromatographic assay, the fluorescence immunochromatographic assay disclosed by the invention has the advantages of good marking stability, low non-specificity, high sensitivity, wide linear range and quantifying accuracy. The fluorescence immunochromatographic kit disclosed by the invention is used for carrying out quantitative detection on the NT-proBNP and detecting whole blood, blood serum and blood plasma samples, can provide reference for diagnosis of cardiovascular and cerebrovascular diseases and can be widely applied to primary hospitals and clinics.

The invention relates to a preparation method for an inorganic-organic core-shell rare-earth (RE) polymer material, wherein core-shell RE-organic complex is a ternary RE-organic complexes LnM1 (M2R') 3R synthesized by a single substituted-benzoic acid compounds (L) and 1, 10-phenanthroline as ligand, as shown in the right figure. The said method includes: (1) preparation of organic RE complexes, (2) preparation of organic RE complexes emulsion, and (3) preparation of core-shell organic RE complexes/PMMA organic RE polymer light-conversion agent. The RE polymer composite has excellent characteristics of high optical conversion efficiency, strong fluorescence, longer fluorescence lifetime and complexes of high transparency, and can be used as a new optical materials in agriculture, biology, electrical and electronics, etc. arious fields. The preparation process is simple.

The invention discloses fluorescent probes based on pyrene, and a preparation method and application thereof. The concrete preparation method comprises taking a mixture of THF and H2O with the ratio of 4:1 as a solvent, controlling the molar ratio of raw materials 1,8-diethynylpyrene to 2-azido-N-(quinolin-8-yl)acetamide to be 1:2-1:3, and stirring at 50-80 DEG C for a night; adding ammonia water for extraction, performing reduced-pressure distillation to remove the solvent, purifying the obtained solid by using silica gel chromatography, and using dichloromethane as an eluant for processing, so as to obtain a light yellow solid 1, and employing a mixture of ethyl acetate and dichloromethane according to the volume ratio of 1:15 as an eluant for processing, so as to obtain a yellow solid compound 2. Two fluorescent probes are obtained through the one-step reaction, tailed detection on copper ion and pyrophosphate ion in water environment can be realized, and the fluorescent probes have relatively high sensitivity and interference resistance.