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39results about How to "Narrow emission peak" patented technology
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Fluorine-boron fluorescent dye as well as preparation method and application thereof
InactiveCN103865290ANarrow absorbencyNarrow emission peakAzo dyesGroup 3/13 element organic compoundsQuantum yieldHalogen
The invention discloses a fluorine-boron fluorescent dye as well as a preparation method and application thereof, wherein the structure of the fluorine-boron fluorescent dye is shown as a formula (I) or a formula (II), in the formula (I) and the formula (II), R1 is H or halogen; R2 is CN; R3, R4, R5 and R6 are independently selected from H, halogen, C1-C6 alkyl or C1-C6 alkoxy; V, W, X, Y and Z are independently CH or N, and when V, W, X, Y or Z is N, N has no substituent group. According to the fluorine-boron fluorescent dye and the preparation method thereof, the maximal fluorescence emission wavelength of the fluorine-boron fluorescent dye is 518-600nm, and the fluorine-boron fluorescent dye also has excellent fluorescence quantum yield and Stokes shift, which shows that the fluorine-boron fluorescent dye has good application prospect in the bioanalysis fields of fluorescence labeling, bioimaging and so on; meanwhile, the preparation method is simple in steps, and raw materials can be obtained easily.
Owner:ANHUI NORMAL UNIV
Near-infrared truxene-based conjugate dual-BODIPY fluorescent dye and preparation method thereof
ActiveCN106928262ANarrow absorbencyNarrow emission peakAzo dyesGroup 3/13 element organic compoundsSolubilityFluorescence
The invention relates to a near-infrared truxene-based conjugate dual-BODIPY fluorescent dye and a preparation method thereof. The fluorescent dye is synthesized by virtue of Knoevenagel condensation reaction of a BODIPY derivative and dialdehyde-containing truxene under the catalysis of p-toluenesulfonic acid and piperidine. The preparation method has the beneficial effects of simple reaction steps, mild reaction conditions and relatively good selectivity. The fluorescent dye has excellent physical properties of relatively high molar extinction coefficients, good solubility and light stability and the like, the highest electronic absorption spectrum red shift reaches above 650nm, the fluorescence emission wavelength reaches 680nm, and the fluorescent dye has very high application prospects. The fluorescent dye has good potential application prospects in the fields of cell imaging, bio-labeling or photoelectric materials and the like.
Owner:南京颐维环保科技有限公司
Photoluminescent nano particle as well as preparation method and application thereof
InactiveCN102134253ANarrow emission peakStocks displacement is largeGroup 3/13 organic compounds without C-metal linkagesBiological testingOrganic solventPhotoluminescence
The invention discloses a photoluminescent nano particle as well as a preparation method and an application thereof. The photoluminescent nano particle is composed of a carboxyl-containing copolymer matrix material and a rare earth fluorescent dye dispersed in the matrix material. The preparation method of the fluorescent nano particle comprises the following steps: dissolving the rare earth compound fluorescent dye and the copolymer in an organic solvent which is capable of being miscible with water; and adding the solution in water, so that the fluorescent nano particle is formed by utilizing a coprecipitation-self assembly process. The fluorescent nano particle has the advantages of excellent long wave excitation luminescence property and good stability, and has a surface carboxyl group for coupling biomolecules. A biological probe based on the fluorescent nano particle has a wide application prospect in the aspects of high-sensitivity fluorescent immunoassay, biological imaging and the like.
Owner:PEKING UNIV
Amphiphilic segmented copolymers, nanoparticles containing amphiphilic segmented copolymers, preparation method of amphiphilic segmented copolymers and use of nanoparticles
ActiveCN104817664ARealize double detectionImprove efficiencyMicrobiological testing/measurementIn-vivo testing preparationsArylFluorescence
The invention discloses amphiphilic segmented copolymers, nanoparticles containing the amphiphilic segmented copolymers, a preparation method of the amphiphilic segmented copolymers and a use of the nanoparticles. The amphiphilic segmented copolymers are shown in the structural formulas (I) to (IV). In the structural formulas (I) to (IV), R1 represents H or methyl, R2, R3 and R5 represent H, alkyl or aryl, R4 represents hydroxyl or methyl, x is an integer of 3-20, Spacer is a spacer arm, the spacer arm is optional, and when the spacer arm exists, the spacer arm is one of an ester group, an alkyl group, a triazole group and a thioether group. The nanoparticle obtained by chelating of the amphiphilic segmented copolymer and rare earth ions has good biocompatibility, has excellent fluorescence imaging performances and MRI imaging performances and has a wide application value in the field of medicine and biology and especially in breast cancer diagnosis and treatment.
Owner:ZHEJIANG UNIV
Fluorescent material based on organic and inorganic hybrid perovskite quantum dots and preparation method of fluorescent material
ActiveCN108441211ANarrow emission peakImprove performanceMaterial nanotechnologyNanoopticsDecompositionQuantum dot
The invention provides a preparation method of a fluorescent material based on organic and inorganic hybrid perovskite quantum dots. The preparation method comprises the following steps: A) mixing silica sol, a first organic amines compound and organic and inorganic hybrid perovskite quantum dots, and drying the mixture to obtain the fluorescent material. Compared with the prior art, the preparation method of the fluorescent material based on organic and inorganic hybrid perovskite quantum dots has the advantages that the silica sol is used for wrapping the organic and inorganic hybrid perovskite quantum dots, the organic amines compound is added in the silica sol to inhibit decomposition of the quantum dots in a sol-gel conversion process, doping of the quantum dots in silicon dioxide glass is realized, due to double effects of silicon dioxide and the organic amines compound, light, thermal, water and oxygen stability of the fluorescent material can be greatly improved, and thus, thefeasibility of the fluorescent material in actual application is improved.
Owner:MINZU UNIVERSITY OF CHINA
Fluoroboron fluorescent dye and preparation method and application thereof
InactiveCN103937287ANarrow emission peakExcellent molar absorptivityAzo dyesFluorescence/phosphorescenceQuantum yieldBODIPY
The invention discloses a fluoroboron fluorescent dye and a preparation method and an application thereof, wherein the structure of the fluoroboron fluorescent dye is shown in a formula (III) or a formula (IV); in the formulae (III) and (IV), R1 is H or halogen, R2 is CN, R7 and R8 are independently H or C1-C6 alkyl, R9 is H, C1-C6 alkyl or C1-C6 alkoxyl, V is CH or N, and when V is N, no substituents are available on N. According to the fluoroboron fluorescent dye provided by the invention, the maximum fluorescent emission wavelength of the fluoroboron fluorescent dye prepared by the method provided by the invention ranges from 518nm to 600nm. Meanwhile, the fluoroboron fluorescent dye further has excellent fluorescence quantum yield and Stokes displacement, which means that the fluoroboron fluorescent dye has a good application prospect in the bioanalysis field such as fluorescence labeling and bioimaging. Meanwhile, the preparation method has simple steps and uses easily available raw materials.
Owner:ANHUI NORMAL UNIV
Rare earth doped gadolinium-potassium fluoride nanometer material for magneto-optical double-module biological marker and preparation method thereof
ActiveCN102757789ASimple preparation processLow costMaterial nanotechnologyNMR/MRI constrast preparationsSolubilityPotassium fluoride
The invention relates to a rare earth doped gadolinium-potassium fluoride nanometer material for a magneto-optical double-module biological marker and a preparation method thereof. The preparation method comprises the following steps of: mixing gadolinium chloride, potassium chloride and ammonium fluoride in distilled water, ethanol and ethanediol by utilizing propylene imine as a surface active agent; carrying out hydro-thermal treatment at 50-230 DEG C for a period of time; washing, and drying to obtain a DGdF4:Ln nanometer crystal, wherein the commonest of the DGdF4:Ln nanometer crystal are as follows: xLn3+-(1-x)KGdF4 (Ln=Ce, Pr, Nd, Pm, Sm, Eu, Tb, Dy, Ho, Er, Tm, Yb; x=0-60 mol%). The rare earth doped DGdF4 nanometer fluorescence marker material prepared by adopting the method can not only control the size of nanometer granules at about 25 nanometers, but also has better water solubility, can utilize the amino on the surface to be connected with biological molecules; besides, the biological connection is subjected to hypersensitivity detection by realizing needed specific fluorescence emission in such a way that different rare earth ions are doped in the nanometer granules, namely the rare earth doped DGdF4 nanometer fluorescence marker material obtained through the preparation method has potential in being applied in the field of biological markers; and because gadolinium ions are contained in a matrix, the DGdF4 nanometer crystal can be further used as a T1 magnetic resonance imaging contrast agent.
Owner:FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
Ultraviolet-blue ray excitated aluminate-base narrow-band green fluorescent powder and preparation method thereof
InactiveCN108949168AImprove matchNarrow emission peakLuminescent compositionsUltravioletThermal stability
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)
Beta-phenanthrene azaBODIPY dye and preparation method and application thereof
InactiveCN106117256ALong emission wavelengthNarrow emission peakEchographic/ultrasound-imaging preparationsAzo dyesHydrogenAlkoxy group
The invention discloses a beta-phenanthrene azaBODIPY dye and a preparation method and application thereof. The structural formula of the beta-phenanthrene azaBODIPY dye is as shown in the formula (I) (please see the formula in the description), wherein R1 is alkoxy groups of C1-C6, R2 and R4 are independently selected from alkoxy groups of C1-C6 or alkyl groups of C1-C6, and R3 and R5 are independently selected from hydrogen or alkoxy groups of C1-C6. By means of the design, the prepared beta-phenanthrene azaBODIPY dye of the structure shown in the formula (I) has large absorption wavelength in actual use, narrow absorption peaks and emission peaks and excellent molar absorption coefficient, and thereby having potential application in optical sensors and photoacoustic imaging.
Owner:ANHUI NORMAL UNIV
Method for detecting treponema pallidum, quantum-dot labeled immunochromatography test paper and preparation method thereof
ActiveCN103529214AHigh detection sensitivityNarrow emission peakMaterial analysisCelluloseGlass fiber
The invention relates to a medical immunodetection method and particularly relates to a method for using quantum-dot labeled immunochromatography test paper to detect treponema pallidum by an immunological method. The quantum-dot labeled immunochromatography test paper is characterized in that a plastic board is stuck with a glass cellulose membrane A, a glass cellulose membrane B of a quantum-dot labeled treponema pallidum IgG monoclonal antibody, a nitrocellulose membrane and water absorbing paper from bottom to top in sequence, wherein one end of the nitrocellulose membrane is provided with treponema pallidum polyclonal antibody and rabbit antimouse second antibody so as to form a detecting band T and a quality control band C; the quantum-dot labeled treponema pallidum IgG monoclonal antibody is positioned at one end of the glass cellulose membrane and corresponds to the detecting band T and the quality control band C, and the quantum-dot labeled treponema pallidum IgG monoclonal antibody is positioned at one end of a sampling point. The method has the advantages that high specificity of immunoreactions and the fluorescence characteristic of quantum dots are combined, so that the detection sensitivity is about 1000 times higher than that of the current commonly-used colloidal gold detection method.
Owner:北京华卫骥生物医药有限公司
Eu(III)-Fe(II) luminous nano-tube and its preparation method and use
InactiveCN101100603AImprove thermal stabilityEasy to adjustBiological testingLuminescent compositionsFluorescenceStructural formula
An Eu(III)-Fe(II) luminescent nanometer tube, its production and use are disclosed. The structural formula is (Eu(PDA)3Fe1.5(H2O)3).1.5H2O, PDA=2, 6-pyridine diacid ligand. MgC12 is added into N,N'-dimethyl-methane amide solution, transmitting-peak strength is increased with Mg2+ ion concentration increasing. It has stable three-dimensional nanometer tubular structure; it can be used as Mg2+ ion fluorescent mark and used for biological molecular discrimination.
Owner:NANKAI UNIV
Preparation method of thulium and europium single/co-doped lutetium gallium garnet phosphor
InactiveCN103031128ANarrow emission peakWell mixedChemical industryLuminescent compositionsFurnace temperatureLutetium
The invention provides a preparation method of a thulium and europium single / co-doped lutetium gallium garnet phosphor. The chemical formula of the phosphor is Lu (3-x-y) Ga5O12: xEu<3+>, yTm <3+>, wherein x=0-0.04, y=0-0.02, and x and y cannot be zero simultaneously. A low temperature combustion method is adopted to realize uniform mixing on an ion level, the obtained product is foamy and loose, is not agglomerated and is easy in ball milling, and the color purity of the product is high. The furnace temperature of the method is greatly reduced, the production process is simple and convenient, and the method is an efficient energy-saving synthetic method. The obtained phosphor has narrow emission peak, and a half-height peak width is only 4-5nm, furthermore, under a 241nm light excitation, the phosphor can emit light with different colors, emits orange light when Eu<3 +> is singly doped, emit blue light when Tm<3+> is singly doped, emits white light when Eu<3 + >and Tm<3 +> are in a co-doped state, and white light emission is finally realized by compounding with an ultraviolet LED chip.
Owner:CHANGCHUN UNIV OF SCI & TECH
Method for detecting poliovirus, quantum dot-labeled immunochromatographic test paper and preparation method thereof
InactiveCN103529217AHigh detection sensitivityNarrow emission peakBiological material analysisCelluloseGlass fiber
The invention relates to a medimmune inspection method, and particularly relates to quantum dot-labeled immunochromatographic test paper, and a method for detecting poliovirus by adopting an immunological method. According to the quantum dot-labeled immunochromatographic test paper, a glass cellulose membrane A, a quantum dot-labeled poliovirus IgG monoclonal antibody glass cellulose membrane B, a cellulose nitrate membrane and absorbent paper are sequentially are bonded on a plastic board from bottom to top, wherein a poliovirus polyclonal antibody and a rabbit-anti-mouse secondary antibody are on one end of the cellulose nitrate membrane so as to form an inspection strip T and a quality control strip C; a quantum dot-labeled poliovirus IgG monoclonal antibody is located at one end of the glass cellulose membrane B and corresponds to the inspection strip T and the quality control strip C, and the quantum dot-labeled poliovirus IgG monoclonal antibody is located at one end of a sample feeding point. The inspection sensitivity of the method is higher than of the currently used method by about 1000 times.
Owner:BEIJING HUAWEI BRAVOBIO
Rare earth-doped gadolinium fluoride nano luminous material for time-resolved multi-color fluorescence labeling and preparation method thereof
ActiveCN102140345AImprove signal-to-noise ratioHigh detection sensitivityFluorescence/phosphorescenceLuminescent compositionsGDF3Rare earth ions
The invention discloses a rare earth-doped gadolinium fluoride nano luminous material for time-resolved multi-color fluorescence labeling and a preparation method thereof, and relates to preparation of a multi-color luminous nano material and an application method of the multi-color luminous nano material combining a time-resolved detection mode in the field of biological fluorescence labeling. The component of the prepared gadolinium fluoride nano crystal is xRe3+-(1-x)GdF3 (RE is Ce, Pr, Nd, Pm, Sm, Eu, Tb, Dy, Ho, Er, Tm or Yb; and x is 0 to 60 mol percent). Light of different colors under the excitation of single wavelength is obtained by doping different rare earth ions with different doping concentrations. The light emitted by a sample is detected by using a fluorescence spectroscope, and visible light of different colors can be respectively obtained under the excitation of ultraviolet. By combining the time-resolved detection mode, short-life interference signals can be effectively removed, and the detection sensitivity can be improved.
Owner:FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
A near-infrared trimeric indenyl conjugated double bodipy fluorescent dye and preparation method thereof
ActiveCN106928262BNarrow emission peakHigh molar absorptivityAzo dyesGroup 3/13 element organic compoundsInfraredSolubility
Owner:南京颐维环保科技有限公司
Suspension type liquid biological chip detection system
PendingCN110554194AConvenient Optical EncodingNarrow emission peakBiological testingFluorescence/phosphorescenceLiquid stateControl system
The invention discloses a suspension type liquid biological chip detection system which comprises an upper cover plate, a front panel, a left panel, a right panel, a back plate, a liquid barrel fixingdevice, a light path system, a liquid path system, a circuit control system and a test tube picking and placing device, wherein a single laser is arranged in the light path system; according to the invention, nanocrystalline fluorescent microspheres are adopted; the emission peak width is relatively narrow; the particle size is controllable; optical coding can be conveniently carried out by usingdifferent wavelengths and microsphere particle sizes; classified fluorescence in the nanocrystalline fluorescent microspheres and labeled fluorescence of molecules to be detected in a sample are excited by using a single laser, a plurality of detection channels can be provided by the method, a larger number of information codes can be obtained, and the detection cost is greatly reduced by using asingle laser for excitation.
Owner:HANGZHOU SHINEDO BIOTECH CO LTD
Fluoroboron fluorescent dye and its preparation method and application
InactiveCN103865290BNarrow emission peakExcellent molar absorptivityAzo dyesGroup 3/13 element organic compoundsQuantum yieldHalogen
The invention discloses a fluorine-boron fluorescent dye as well as a preparation method and application thereof, wherein the structure of the fluorine-boron fluorescent dye is shown as a formula (I) or a formula (II), in the formula (I) and the formula (II), R1 is H or halogen; R2 is CN; R3, R4, R5 and R6 are independently selected from H, halogen, C1-C6 alkyl or C1-C6 alkoxy; V, W, X, Y and Z are independently CH or N, and when V, W, X, Y or Z is N, N has no substituent group. According to the fluorine-boron fluorescent dye and the preparation method thereof, the maximal fluorescence emission wavelength of the fluorine-boron fluorescent dye is 518-600nm, and the fluorine-boron fluorescent dye also has excellent fluorescence quantum yield and Stokes shift, which shows that the fluorine-boron fluorescent dye has good application prospect in the bioanalysis fields of fluorescence labeling, bioimaging and so on; meanwhile, the preparation method is simple in steps, and raw materials can be obtained easily.
Owner:ANHUI NORMAL UNIV
Preparation method of ethylene diamine functionalized carbon quantum dot and application thereof in catechol detection
ActiveCN112251218AHigh sensitivity and selectivityHigh selectivityFluorescence/phosphorescenceLuminescent compositionsHigh selectivityCombinatorial chemistry
The invention provides a preparation method of an ethylene diamine functionalized carbon quantum dot and application thereof in catechol detection. Ethylene diamine is introduced to the surfaces of the carbon quantum dot through amidation reaction and a protection / de-protection method to synthesize the ethylene diamine functionalized carbon quantum dot, the preparation process is simple, the raw material source is wide, the price is low, and the obtained compound has a target detection substance selective binding function. In a neutral environment, catechol can quickly react with ethylene diamine on the surface of the ethylene diamine functionalized carbon quantum dot to generate a static compound, and the static compound causes synchronous quenching of nuclear-state and surface-state fluorescence of the ethylene diamine functionalized carbon quantum dot. The catechol concentration and the fluorescence quenching value of the ethylene diamine functionalized carbon quantum dot have a good linear relationship, and the detection limit reaches 0.07 mg / L. According to the invention, a simple and rapid catechol fluorescence quantitative analysis method is established, and has extremely high selectivity and interference resistance for catechol detection.
Owner:NANKAI UNIV
Tm and Eu mono/co-doped lutecium gallium garnet phosphor
InactiveCN103351861ANarrow emission peakWell mixedChemical industryGas discharge lamp usageSynthesis methodsPhosphor
The invention provides a Tm and Eu mono / co-doped lutecium gallium garnet phosphor. The chemical formula of the phosphor is Lu(3-x-y)Ga5O12:xEu<3+>, yTm<3+>, wherein x is 0-0.04, y is 0-0.02, and x and y cannot be zero simultaneously. Uniform ion mixing is realized through a low temperature combustion method, and the prepared phosphor has the characteristics of spumous and loose structure, no clustering, easy ball milling and high purity. The method has the characteristics of substantial reduction of the furnace temperature, and simple production process, and is an efficient energy-saving synthesis method. The obtained phosphor has a narrow emission peak, has a peak width at half height of 4-5nm, and emits different-color light under the excitation of 241nm light, red light is emitted when only Eu<3+> is doped, blue light is emitted when only Tm<3+> is doped, white light is emitted when Eu<3+> and Tm<3+> are codoped, the phosphor can be compounded with an ultraviolet LED chip to realize white light emission.
Owner:CHANGCHUN UNIV OF SCI & TECH
Preparation method for quantum dot labelled immunochromatographic test strip
ActiveCN103543268BHigh detection sensitivityNarrow emission peakBiological material analysisGlass fiberCellulose
The invention relates to a medical immunodetection method and in particular relates to a method for detecting a Japanese encephalitis virus (JEV) by an immunological method by using a quantum dot labelled immunochromatographic test strip. The quantum dot labelled immunochromatographic test strip is characterized in that a glass cellulose membrane A, a glass cellulose membrane B of a quantum dot labelled JEV IgG (immunoglobulin G) monoclonal antibody, a nitrocellulose membrane and absorbent paper are stuck to a plastic board from bottom to top in sequence, wherein one end of the nitrocellulose membrane has a JEV polyclonal antibody and a rabbit anti-mouse second antibody, thereby forming a detection zone T and a quality control zone C; the quantum dot labelled JEV IgG monoclonal antibody is arranged at the other end of the glass cellulose membrane B, corresponds to the detection zone T and the quality control zone C and is arranged at one end of a sampling point. The detection sensitivity of the method is about 1000 times higher than that of the detection method frequently used at present.
Owner:北京华卫骥生物医药有限公司
Fluorescence detection card for aflatoxin B1, preparation method of fluorescence detection card and method for detecting aflatoxin B1 in grain and oil
PendingCN114525200AHigh sensitivityEasy to operateBioreactor/fermenter combinationsBiological substance pretreatmentsMurine antibodyBiochemistry
The invention discloses a fluorescence detection card for aflatoxin B1, a preparation method of the fluorescence detection card and a method for detecting the aflatoxin B1 in grain and oil. A fluorescent microsphere labeled aflatoxin B1 monoclonal antibody conjugate is embedded in a sample combination pad of the detection card, an aflatoxin B1 antigen is coated on a quality control line of a chromatography membrane, and a goat anti-mouse antibody is coated on a detection line. The preparation method of the detection card comprises the following steps: adding a fluorescent microsphere labeled aflatoxin B1 monoclonal antibody conjugate into the sample combination pad for embedding treatment to obtain the fluorescent detection card with high sensitivity. According to the method for detecting the aflatoxin B1 in the grain and oil, a sample pretreatment method is limited, a specific extracting solution is selected, the extraction rate of the aflatoxin B1 in the grain and oil can be increased, aflatoxin B1 residues in a sample can be effectively extracted, and therefore measured data are more accurate.
Owner:GUANGZHOU ANNUO FOOD SCI & TECH CO LTD
A kind of ultraviolet-blue light excited aluminate-based narrow-band green phosphor and preparation method thereof
InactiveCN108949168BImprove matchNarrow emission peakLuminescent compositionsMaterials sciencePhotochemistry
The invention discloses ultraviolet-blue ray excitated aluminate-base narrow-band green fluorescent powder. A chemical formula of the aluminate-base narrow-band green fluorescent powder is Sr(Mg1-xMnx)yAl12-2yO19-2y, wherein Mn is divalent, x is more than 0 and less than or equal to 0.50, and y is more than or equal to 0 and less than or equal to 1.0. The invention further discloses a preparationmethod of the ultraviolet-blue ray excitated aluminate-base narrow-band green fluorescent powder. The excitation wavelength of the fluorescent powder is 350nm-475nm in an ultraviolet-blue ray region and can be well matched with commercial ultraviolet-blue ray LED chips; the fluorescent powder is narrow in emission peak, high in color purity and excellent in heat stability and has a very wide colorrange; and the synthetic temperature is low, the synthetic process is simple, and the fluorescent powder is stable in chemical performance and pollution-free and has very high practical and application values in the field of fluorescent powder for new-generation LCD backlight sources.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)
Green fluorescent material and preparation method thereof
InactiveCN108559490AImprove luminosityWide excitation spectrumLuminescent compositionsHigh absorptionGreen-light
The invention relates to a green fluorescent material and a preparation method thereof. A chemical expression of the green fluorescent material is Zn1-xB2O4:xMn<2+>, wherein x is greater than 0 but issmaller than or equal to 0.3. The green fluorescent material has the advantages that bright green light can be given out under the irradiation of near ultraviolet to blue light; particularly the green fluorescent material has high absorption performance in a blue light region; the material can be effectively excited by a blue light chip; preparation raw materials are cheap and can be easily obtained; no pollution exists; the preparation method is simple and mild; the production cost is low, and the like. The preparation method is suitable for large-scale industrial production. On the basis ofthe various advantages above, large-scale industrial production of the green fluorescent material can be realized; the green fluorescent material can be widely applied to the aspects of illumination,display and the like.
Owner:LANZHOU UNIVERSITY
Preparation method for quantum-dot labeled immunochromatography test paper
ActiveCN103529216BHigh detection sensitivityNarrow emission peakBiological material analysisGlass fiberCellulose
Owner:北京华卫骥生物医药有限公司
Fluorescent nanoparticle and preparation method and application thereof
InactiveCN101701151BNarrow emission peakHigh strengthLuminescent compositionsMaterial analysisHydrophobic polymerPhotoluminescence
Owner:PEKING UNIV
Turn-on test strip for detecting T-2 toxin and preparation method thereof
The invention discloses a turn-on type test strip for detecting T-2 toxin and a preparation method of the turn-on type test strip, and belongs to the technical field of rapid food detection. The test strip consists of a bottom plate, a sample pad, an absorption pad and a nitrocellulose membrane (NC membrane). The method comprises the following steps: time-resolved fluorescent microspheres is selected as a fluorescent material, the time-resolved fluorescent microspheres is coupled with BSA (Bovine Serum Albumin), and a prepared compound is fixed on a test strip to serve as a fluorescent donor; a colloidal carbon labeled antibody compound is used as a quencher, a mixture of a time-resolved fluorescent microsphere labeled BSA bovine serum albumin compound and a T-2 antigen is sprayed on an NC membrane to serve as a detection line, a goat anti-mouse IgG antibody is sprayed to serve as a quality control line, and the turn-on type lateral flow chromatography detection test strip is assembled. The test strip can be used for on-site detection of T-2 toxin, increases the detection sensitivity and the detection speed, is suitable for large-scale application and batch production, and has good application and development prospects.
Owner:HENAN AGRICULTURAL UNIVERSITY
Preparation method for quantum-dot-marked immunochromatographic test paper
ActiveCN103543269BHigh detection sensitivityNarrow emission peakMaterial analysisCelluloseGlass fiber
Owner:CHINA BEIJING BEIDA JUBANG SCI & TECH CO LTD
Method for detecting rubella virus, quantum dot-labeled immunochromatographic test paper and preparation method thereof
ActiveCN103529211BHigh detection sensitivityNarrow emission peakBiological material analysisCelluloseGlass fiber
The invention relates to a medimmune inspection method, and particularly relates to quantum dot-labeled immunochromatographic test paper, and a method for detecting rubella virus by adopting an immunological method. According to the quantum dot-labeled immunochromatographic test paper, a glass cellulose membrane A, a quantum dot-labeled rubella virus IgG monoclonal antibody glass cellulose membrane B, a cellulose nitrate membrane and absorbent paper are sequentially bonded on a plastic board from bottom to top, wherein a rubella virus polyclonal antibody and a rabbit-anti-mouse secondary antibody are arranged on one end of the cellulose nitrate membrane so as to form an inspection strip T and a quality control strip C; a quantum dot-labeled rubella virus IgG monoclonal antibody is located at the other end of the glass cellulose membrane B and corresponds to the inspection strip T and the quality control strip C, and the quantum dot-labeled rubella virus IgG monoclonal antibody is located at one end of a sample feeding point. The inspection sensitivity of the method is higher than of the currently used method by about 1000 times.
Owner:魏县聚邦新材料科技有限公司
Fluoroboron fluorescent dye and its preparation method and application
InactiveCN103937287BNarrow emission peakExcellent molar absorptivityOrganic chemistryAzo dyesQuantum yieldHalogen
The invention discloses a fluoroboron fluorescent dye and a preparation method and an application thereof, wherein the structure of the fluoroboron fluorescent dye is shown in a formula (III) or a formula (IV); in the formulae (III) and (IV), R1 is H or halogen, R2 is CN, R7 and R8 are independently H or C1-C6 alkyl, R9 is H, C1-C6 alkyl or C1-C6 alkoxyl, V is CH or N, and when V is N, no substituents are available on N. According to the fluoroboron fluorescent dye provided by the invention, the maximum fluorescent emission wavelength of the fluoroboron fluorescent dye prepared by the method provided by the invention ranges from 518nm to 600nm. Meanwhile, the fluoroboron fluorescent dye further has excellent fluorescence quantum yield and Stokes displacement, which means that the fluoroboron fluorescent dye has a good application prospect in the bioanalysis field such as fluorescence labeling and bioimaging. Meanwhile, the preparation method has simple steps and uses easily available raw materials.
Owner:ANHUI NORMAL UNIV
Method for preparing quantum-dot labeled immunochromatography test paper
ActiveCN103529213BHigh detection sensitivityNarrow emission peakMaterial analysisCelluloseGlass fiber
Owner:BEIJING HUAWEI BRAVOBIO
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