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65results about How to "Strong fluorescent properties" patented technology
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Nitrogen-doped carbon nanometer particle as well as preparation method and application thereof
InactiveCN103113886AOvercoming the technical problem of easy fluorescence quenchingEasy to prepareNon-macromolecular adhesive additivesInksMicrowave methodSolvent
The invention discloses a nitrogen-doped carbon nanometer particle as well as a preparation method and application thereof, belongs to the field of nanometer material science and is used for solving the technical problems that fluorescence quenching is easily caused to the aggregative state of the carbon nanometer particle due to surface passivation modifier which is added for the preparation of existing carbon nanometer particles. The nitrogen-doped carbon nanometer particle is prepared through a microwave method by using organic compounds containing polycarboxyl or polyhydroxy as materials and using ammonia water as a solvent and a nitrogen doping source. The invention further provides the application of the nitrogen-doped carbon nanometer particle as fluorescent ink and fluorescent glue. The preparation method disclosed by the invention is simple, low in cost, and convenient to realize large-scale production; the maximal fluorescent quantum efficiency of the solid film formed by the prepared fluorescent glue is as high as 84%; the prepared fluorescent ink is non-toxic, generates no precipitates after being placed for a long time, is strong in fluorescence characteristic and can be applied to various fields such as bio-imaging, biological product identification, information storage, information encryption, counterfeiting prevention, illumination and display, sensing and photovoltaic devices.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Glutathione-Au/Ag alloy nano material, preparation method and application thereof
ActiveCN105038771AEasy to prepareAvoid the use of toxic reagentsMaterial nanotechnologyBiological testingIonOil bath
The invention relates to a glutathione-Au / Ag alloy nano material, a preparation method and an application thereof. The preparation method includes following steps: 1) preparing a silver nano particle solution; 2) adding glutathione and performing an oil-bath reaction at 65-70 DEG C for 40-50 h, and adding deionized water with uniform stirring; 3) adding a chloroauric acid solution with stirring, centrifugally processing the mixed liquid, performing a mixed reaction to a supernatant with excessive methanol solution, and centrifugally processing the mixture again to obtain a precipitation, and 4) re-dissolving the precipitation in a PBS buffer solution to obtain a solution of the glutathione-Au / Ag alloy nano material. The glutathione-Au / Ag alloy nano material can be used in quantitative detection of histidine and immune-analysis of human chorionic gonadotropin. The preparation method is simple and convenient, wherein the glutathione is employed as a reduction agent and a stabilizer, so that the method is free of toxic reagents and is environment-friendly. The glutathione-Au / Ag alloy nano material is stable and uniform in structure, is good in dispersion property, is strong in fluorescence character, and can be used in analysis and detection of various bio-samples and detection of other relative functional materials.
Owner:SHANTOU UNIV
Red fluorescence gold nanocluster as well as preparation method and application thereof
InactiveCN105527267ASmall sizeLow toxicityFluorescence/phosphorescenceRed fluorescenceAnalytical chemistry
The invention provides a red fluorescence gold nanocluster as well as a preparation method and an application thereof and belongs to preparation and applications of fluorescence nano materials. According to the preparation method, cheap egg white is used for rapidly reducing and coating HAuCl4, and gold nanocluster AuNCs@EW giving red fluorescence is synthesized. The preparation method is simple, rapid and low in cost. The prepared nanocluster can be used as fluorescent dye, can be used for detecting mercury ions and further can be used for detecting GSH (glutathione).
Owner:SHANXI UNIV
Lubricating inhibitor for drilling fluid and preparation method thereof and drilling fluid containing lubricating inhibitor for drilling fluid
ActiveCN101717622AImprove thermal stabilityImprove stabilitySugar derivativesDrilling compositionWell drillingO methylglucose
The invention relates to a lubricating inhibitor containing methylglucoside compounds for a drilling fluid and a preparation method of the lubricating inhibitor for the drilling fluid and the drilling fluid containing the lubricating inhibitor for the drilling fluid. The comprehensive performance of the drilling fluid can be compared with that of an oil-based drilling fluid; in addition, the invention can overcome the defects that the oil-based drilling fluid pollutes the environment, influences the display of an oil-gas layer and has high cost.
Owner:北京奥凯立科技发展股份有限公司
Inorganic-organic core-shell type rare earth high polymer material and its preparation method
InactiveCN1966534AHigh light conversion efficiencyLong fluorescence lifetimeLuminescent compositionsBenzoic acidFluorescence
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.
Owner:DONGHUA UNIV
Preparation method for bismuth telluride quantum point
InactiveCN105819410AControl scaleSimple preparation processMaterial nanotechnologyLuminescent compositionsCentrifugationFluorescence
The invention provides a method for preparing bismuth telluride quantum dots by ultrasonic technology, which comprises the steps of: 1) taking a certain amount of solid bismuth telluride powder and fully grinding it in an agate mortar. 2) Add an appropriate amount of nitrogen-methylpyrrolidone (NMP) solution to the ground powder and mix, and place the above-mentioned mixture in an ultrasonic instrument for ultrasonication for a cumulative time of 4 hours. 3) Centrifuge the suspension system after ultrasonication, and collect the supernatant liquid to obtain the bismuth telluride quantum dot solution. The present invention adopts a very simple and low-cost preparation process to successfully obtain bismuth telluride quantum dots. The obtained quantum dots have good dispersion and can fluoresce under the irradiation of ultraviolet lamps. They are expected to be used in thermoelectric power generation, thermoelectric refrigeration and sensors, etc. fields are applied.
Owner:YUNNAN NORMAL UNIV
Method for preparing shell fluorescent microsphere
InactiveCN102600773ASmall particle sizeControl thicknessLuminescent compositionsMicroballoon preparationEmulsionPhotonic crystal
The invention relates to a method for preparing a shell fluorescent microsphere, relates to the preparation method of a fluorescent microsphere, and mainly aims to solve the problems that the diameter of a photonic crystal microsphere of the existing silicon dioxide shell is not uniform, and the size of the photonic crystal microsphere of the existing silicon dioxide shell is difficult to regulate. The method for preparing the shell fluorescent microsphere comprises the following steps of: firstly synthesizing CdTe quantum dots with different diameters through an aqueous phase method, preparing polystyrene spheres with different diameters by utilizing a soap-free emulsion method, coating the quantum dots with the different diameters in a SiO2 grain by taking the polystyrene spheres with the different diameters as seeds, finally dissolving SiO2 microspheres coated with the quantum points by taking the polystyrene spheres as seeds or calcining to remove the polystyrene spheres, namely obtaining PS@SiO2&CdTe fluorescent microspheres. According to the method for preparing the shell fluorescent microsphere, disclosed by the invention, the condition is simple and easily controlled, and the prepared fluorescent microsphere has excellent chemical stability and stronger fluorescence characteristic, controllable size and uniform diameter. The method for preparing the shell fluorescent microsphere is applied to the field of preparation of the shell fluorescent microsphere.
Owner:HEILONGJIANG UNIV
Photocatalysis material possessing hud structure of photoluminescent property, and preparation method
InactiveCN101049574ALow priceUniform particle sizeOrganic-compounds/hydrides/coordination-complexes catalystsLuminescent compositionsNano structuringMicrosphere
A photocatalyst with fluorescent core-shell nano-structure has an expression formula: SiO2@AxMy:RB, where x=0-2, y=0-3, A is chosen from Ti, Fe, Zn, Pb and Ag, M is chosen from O and S, and RB is rhodamine used as both fluorescent marker and surfactant. Its preparing process features that the spherical SiO2 particles with controllable diameter is used as core, and the dye rhodamine is embedded in the core-shell nano-structure.
Owner:NORTHEAST NORMAL UNIVERSITY
Metal complex liquid crystal polymer and preparation method thereof
InactiveCN103224626AStrong fluorescent propertiesWide range of liquid crystalLiquid crystal compositionsLuminescent compositionsIonFluorescence
A metal complex liquid crystal polymer and preparation method thereof, belongs to the technical field of polymer chemistry. The structure general formula of the metal complex liquid crystal polymer is (1), wherein R1 is cholesteric liquid crystal monomer; R2 and R3 respectively are -H and -OCnH2n +1 or -CnH2n +1; A1 is the soft segment comprising carbon 1 to 14; A2, A3 and A4 are respectively linkage group with conjugated structure; M is one of Al, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu. The product is prepared by taking the liquid crystal polymer containing carboxylic acid group as ligand and the metal ion as central ion, and adding carboxylic acid molecule to synthesize bonded metal liquid crystal polymer. The complex liquid crystal polymer not only maintains good liquid crystal performance, but also has excellent fluorescence property.
Owner:NORTHEASTERN UNIV
Pyroimidazole derivative, preparation method thereof and electroluminescent device
ActiveCN104592238AThe synthesis method is simpleStrong fluorescent propertiesOrganic chemistrySolid-state devicesElectricityTriboluminescence
The invention provides a pyroimidazole derivative. The pyroimidazole derivative has a structure shown in the specification. The invention also provides a preparation method of the pyroimidazole derivative, belonging to the technical field of organic electroluminescence. The bipolar pyroimidazole derivative is a fluorescence emitting material with a bipolar carrier transport property and contains a unit with a hole transport property and a unit with an electron transport property. The compound is simple in synthesis method and is suitable to apply widely. The material has a bipolar carrier transport property, can individually serve as a light emitting layer or a carrier transport layer and can be also mixed with other dyes and serve as the light emitting layer or the carrier transport layer. The compound shows stronger fluorescent properties in a solid state, can form uniform films and has better optical and thermal stability.
Owner:JILIN UNIV
Degumming method applicable to green fluorescent protein-containing bave
ActiveCN104389032AStrong fluorescent propertiesLittle loss of mechanical propertiesDe-gumming silkAlkaline proteaseFluorescence
The invention discloses a degumming method applicable to green fluorescent protein-containing bave. The degumming method comprises the following steps: drying the bave to be constant-weight, soaking the bave in a pretreating solution in a bath ratio of 1: 50, degumming for 30-120 minutes under the conditions that the concentration of alkaline protease is 0.5-3g / L and the temperature is 40-60 DEG C, washing by water, and drying to obtain the degummed bave, wherein the pretreating solution is a solution with pH of 10 and containing 1g / L sodium carbonate and 0.5g / L penetrant JFC. The degumming method is suitable for degumming the green fluorescent protein-containing bave; by the degumming method, the degumming rate is high and the fluorescent characteristic of the bave can be retained to the maximum extent; after the bave is degummed through the degumming method, the bave has relatively small mechanical performance loss, soft hand feel and good mercerization; through the degumming method, a requirement on degumming of transgenic green bave can be met.
Owner:SOUTHWEST UNIVERSITY
Preparation method and application of mercury ion fluorescence/electrochemical sensor
ActiveCN110618272AStrong fluorescent propertiesGood electrical conductivityMaterial analysis by electric/magnetic meansBiological testingPhysical chemistryQuality safety
The invention belongs to the technical field of sensor detection, and particularly relates to preparation and application of a mercury ion fluorescence / electrochemical sensor. Preparation comprises the steps: a CQDs solution is prepared firstly, then EDC and NHS are added for the first time of stirring, then an amino modified mercury ion aptamer is added for the second time of stirring to obtain aspecific carbon quantum dot solution, a copper sulfate solution is added for the third time of stirring, and a carbon quantum dot and copper nano-cluster composite material is obtained by drying. According to a method for detecting mercury ions through the carbon quantum dot and copper nano-cluster composite nanomaterial and by constructing the fluorescence / electrochemical sensor, the mercury ions in food can be rapidly and accurately detected, and the quality safety of the food and the like is guaranteed advantageously.
Owner:JIANGSU UNIV
Method for preparing fluorescent carbon nanoparticles by spontaneous reaction
InactiveCN104787742AStrong fluorescent propertiesFast preparationNanotechnologyFluorescence/phosphorescenceCentrifugationCyclodextrin
The invention discloses a simple preparation method of fluorescent carbon nanoparticles and an application in cell imaging. The invention belongs to the technical field of a preparation technology of a carbon nanomaterial. By a chemical oxidation method, cyclodextrin is used as a carbon source to prepare a cyclodextrin solution; and the cyclodextrin solution is added into an oxidizing agent to prepare the fluorescent carbon nanoparticles by a one-step method. The preparation method is a process of a spontaneous reaction. No external heating or complex operation is required. White fog is generated after reactants are mixed. After the reaction, a lot of carbon nanoparticles can be obtained through centrifugation. The preparation method is pollution-free, simple, reliable and low-cost. Raw materials are easily available. The preparation method has a wide application prospect in fields of detection of heavy metal ions in the environment and cell imaging, etc.
Owner:CHINA PHARM UNIV
Method for preparing nitrogen-doped graphene quantum point by using reflux process
InactiveCN105820816ASave raw materialsRaw materials are easy to getLuminescent compositionsNitrogen doped grapheneSodium hydroxide
The invention provides a method for preparing a nitrogen-doped graphene quantum point by using a reflux process. The method comprises the following steps: 1) adding acetylene black, concentrated nitric acid and deionized water in a certain ration into a reflux device, setting the temperature of a heating sleeve to be 90 to 100 DEG C and allowing a reaction solution to maintain slightly boiling for 3 to 20 h; and 2) after completion of a reflux reaction, cooling the reaction solution to room temperature, adjusting the pH value of the reaction solution with a sodium hydroxide solution until the reaction solution is neutral, carrying out separation and purification with a dialysis bag in deionized water and collecting the nitrogen-doped graphene quantum point. The method provided by the invention can easily prepare the nitrogen-doped graphene quantum point, is low in economic cost and simple in preparation technology and can realize preparation and doping of the graphene quantum point at the same time.
Owner:YUNNAN NORMAL UNIV
Silver nano-cluster fluorescent nanorod, preparation method thereof, and application of nanorod in white LED
ActiveCN110330512ALimited rotationControl vibrationGroup 1/11 organic compounds without C-metal linkagesSilver organic compoundsLuminous intensityFluorescence
The invention relates to a silver nano-cluster fluorescent nanorod, a preparation method thereof, and an application of the nanorod in white LED. The fluorescent nanorod is formed by self-assembling Ag9 and hydrochloric acid in an aqueous solution. The Ag9 fluorescent nanorod prepared in the invention has outstanding optical properties, still maintains excellent fluorescent performances after being freeze-dried into a powder, can be used to prepare orange red light-emitting LED with a good stability, and can be mixed with a commercial blue phosphor and a commercial green phosphor according toa mass ratio of 10:5:1 to prepare the white light-emitting LED. The luminescent silver cluster can successfully replace the light conversion material of traditional materials in order to provide possibility for producing environmentally-friendly LEDs. The preparation method of the silver nano-cluster fluorescent nanorod of the invention has the advantages of simplicity and low cost; and the prepared LED has an excellent luminous intensity, and meets environmental protection requirements.
Owner:SHANDONG UNIV
Double mode light-emitting water-based anti-counterfeiting ink, and preparation method and application thereof
ActiveCN110591450ANo clogging nozzleImprove anti-counterfeiting securityInksNanoopticsWater in oilChemistry
The invention provides double mode light-emitting water-based anti-counterfeiting ink, and a preparation method and application thereof. The preparation method comprises the steps that an organic solution of up-conversion nanoparticles and carbon quantum dots is added to water-in-oil microemulsion, then an organic solvent of the organic solution in the water-in-oil microemulsion is evaporated by heating, and then water is added to make the water-in-oil microemulsion inversely transform to form water-in-oil nano emulsion. According to the double mode light-emitting water-based anti-counterfeiting ink, and the preparation method and application thereof, the O / W nano emulsion is used for encapsulating artfully an oil-soluble double mode light-emitting material in the inner part of an emulsiondroplet, complex operation brought by removing ligands can be avoided, and the drawback of decreasing fluorescence intensity for removing hydrophobic ligands can be overcome. Compared with oil-soluble anti-counterfeiting ink, the water-based anti-counterfeiting ink has the advantages of no corrosion to a nozzle, no pollution to the environment and no blockage to the nozzle.
Owner:SHANDONG UNIV
Energy-containing fluorescent material rare earth-glutamic acid-imidazole single crystal complex and preparation method thereof
InactiveCN105294744AClear structureNovel structureGroup 3/13 element organic compoundsLuminescent compositionsFluorescenceRare earth
The invention discloses an energy-containing fluorescent material rare earth-glutamic acid-imidazole single crystal complex and a preparation method thereof. The complex is prepared from rare earth metal, glutamic acid, imidazole and perchloric acid, the molecular formula of the complex is Ln(Gly)4IM.(ClO4)4 (Ln: Nd, Sm, La, Ce, Pr, Ho, Eu, Er, Lu). The preparation process includes the steps that rare earth oxide and perchloric acid react so that a perchloric acid and rare earth solution can be prepared, glutamic acid is added for reaction, reaction is performed after the pH value is adjusted through an alkaline solution, and crystals are obtained after imidazole is added for reaction and reactants are placed for a period of time. The technology is easy and convenient to perform, ligand selection is scientific, the synthesized rare earth amino acid single crystal complex is clear and novel in structure, and meanwhile the single crystal structure provides a new basic scientific basis for a crystal database. The complex can release a large number of energy in the decomposing process and is a potential energy-containing material. The complex has high fluorescent performance.
Owner:LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
Tetra-branched rare earth complex and preparation method thereof
InactiveCN101798321AConjugate plane largeExcellent Rigid StructureGroup 3/13 element organic compoundsIon clustersPhenanthroline
The invention relates to a tetra-branched rare earth complex and a preparation method thereof. The complex is prepared through complexing reaction of three ligands, namely two M1s and one M2 by taking a trivalent rare earth ion as a central ion. The chemical formula of the complex is Ln(M1)2M2, wherein Ln is the rare earth ion; M is the ligands consisting of M1 and M2; M1 is a monocarboxylic compound synthesized by a tetratomic alcohol compound and an aliphatic or aromatic dicarboxylic compound; M2 is 1,10-phenanthroline; and a ligand solvent is dimethyl sulfoxide or N,N-dimethyl formamide. The rare earth complex of the invention has a network pore structure, bigger conjugate plane, better rigid structure and structural stability, and more coordinative rare earth ions. A rare earth polymer luminescent material synthesized by the tetra-branched rare earth complex has no phenomenon that ions are accumulated to form ion clusters so as to cause fluorescent quenching, and can effectively perform high-efficiency photon switching to enhance the luminescent efficiency of the complex.
Owner:JIANGSU XINGYE PLASTIC
Block polymer with pH/temperature/light triple responsiveness and preparation method thereof
ActiveCN103709343ASimple stepsMild conditionsLuminescent compositionsControlled releasePolymer science
The invention relates to a block polymer with pH / temperature / light triple responsiveness and a preparation method thereof. The block polymer is prepared by applying RAFT (Reversible Addition Fragmentation chain Transfer) polymerization, and a product can be obtained after being treated by ethidene diamine and being purified. The preparation method disclosed by the invention is simple to operate and controllable in process; the prepared block polymer with triple responsiveness has wide application prospect in fields such as functional paint, drug controlled release and bio-imaging.
Owner:SKSHU PAINT
Thieno[3,4-b] indole derivative and synthesis method thereof
ActiveCN111285881AGood varietyRaw materials are easy to getOrganic chemistryArylCombinatorial chemistry
The invention discloses a thieno[3,4-b]indole derivative and a synthesis method thereof. The preparation method comprises the following steps: by taking 4-alkylthio-4-((2-(phenyl ethynyl)aryl)amino)butyl-3-ene-2-one as a raw material, catalyzing a self-cyclization reaction of 4-alkylthio-4-((2-(phenyl ethynyl)aryl)amino)butyl-3-ene-2-one with an oxidizing agent by catalyzing with a cheap metal toconstruct the thieno[3,4-b] indole derivative in one step, wherein the obtained thieno[3,4-b] indole derivative is widely applied to the fields of photoelectric materials, medicines and the like. Themethod of the invention has characteristics of cheap metal catalysis, elemental sulfur oxidation, easily available raw materials, simple operation, high efficiency, wide substrate adaptability and diversified functional groups.
![Thieno[3,4-b] indole derivative and synthesis method thereof](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/c03ff2c0-3d10-41ec-812a-509d0a7dbc11/FDA0001896969650000011.png "Thieno[3,4-b] indole derivative and synthesis method thereof")
![Thieno[3,4-b] indole derivative and synthesis method thereof](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/c03ff2c0-3d10-41ec-812a-509d0a7dbc11/FDA0001896969650000012.png "Thieno[3,4-b] indole derivative and synthesis method thereof")
![Thieno[3,4-b] indole derivative and synthesis method thereof](https://images-eureka-patsnap-com.libproxy1.nus.edu.sg/patent_img/c03ff2c0-3d10-41ec-812a-509d0a7dbc11/FDA0001896969650000013.png "Thieno[3,4-b] indole derivative and synthesis method thereof")
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Method for preparing graphene quantum dots
ActiveCN102807209BHigh puritySmall particle sizeMaterial nanotechnologyGrapheneSolubilityFluorescence
Owner:TSINGHUA UNIV
Polycyclic aromatic hydrocarbon silane coupling agent with strong fluorescence characteristic as well as green and efficient preparation and application thereof
PendingCN113603716AGood fluorescence stabilityStrong fluorescent propertiesGroup 4/14 element organic compoundsLuminescent compositionsPolymer sciencePtru catalyst
The invention relates to a polycyclic aromatic hydrocarbon silane coupling agent with a strong fluorescence characteristic as well as green and efficient preparation and application thereof. The polycyclic aromatic hydrocarbon functionalized silane coupling agent with a strong fluorescence characteristic is efficiently prepared by utilizing a Diels-Alder reaction between a vinyl silane coupling agent and 7,9-diphenyl-8H-cyclopenta[a]acenaphthylen-8-one containing unsaturated bonds, tetraphenyl cyclopentadiene ketone and 1,3,6,8-tetraethynylpyrene, a catalyst does not need to participate in the reaction process, and the reaction process can be realized by only depending on the temperature. The method has a great industrial application prospect. The silane coupling agent can be used for preparing fluorescent polysiloxane and fluorescent cross-linked porous organic silicon resin, has wide application prospects in the aspects of fluorescent rubber, fluorescent porous membranes, super-hydrophobic porous silicon resin and the like, and is high in research and development value. According to the method disclosed by the invention, green and clean production of the functionalized silane coupling agent is realized by utilizing a catalyst-free Diels-Alder reaction, and a low-energy-consumption mild reaction technical approach is developed in the aspects of eliminating catalyst residues, simplifying post-treatment, increasing functionalized silane types and the like.
Owner:SHANDONG GUIKE NEW MATERIAL CO LTD
Method for preparing beta, beta'-binary (4-pyridyl) divinylbenzene
InactiveCN101514182AExcellent fluorescence propertiesShort reaction timeOrganic chemistryMetal/metal-oxides/metal-hydroxide catalystsDimethyl formamideProduction rate
The invention discloses a method for preparing beta, beta'-binary (4-pyridyl) divinylbenzene, comprising the steps: phenyl-diiodide, 4-vinylpyridine and triethylamine are taken as raw material, and N, N'-dimethyl formamide is taken as solvent, and Heck reaction is carried out under the action of palladium catalyst at the temperature of 90-110 DEG C, so that the crude products of the beta, beta'-binary (4-pyridyl) divinylbenzene can be obtained; after the reaction is completely finished, the products are purified, and pure beta, beta'-binary (4-pyridyl) divinylbenzene can be obtained. The preparation method is simple and easy to do, and has mild reaction condition and extremely high production rate. The beta, beta'-binary (4-pyridyl) divinylbenzene can be taken as ligand of synthetic metal composition, cluster compound and coordination polymer material.
Owner:SUZHOU UNIV
Method for preparing arborescent lactose-containing polyamidoamine modified gold nano-clusters
ActiveCN110003487AImprove stabilityPolymerization is easyFluorescence/phosphorescenceEnd-groupSynthesis methods
The invention relates to a method for preparing arborescent lactose-containing polyamidoamine modified gold nano-clusters, and in particular discloses a synthesis method of the arborescent lactose-containing polyamidoamine modified gold nano-clusters. The prepared gold nano-clusters can be used as a biosensor. The method comprises the following steps: synthesizing arborescent cystamine-containingpolyamidoamine of different generations through a Michael addition reaction, carrying out end group functionalization on the arborescent cystamine-containing polyamidoamine by using lactonolactone soas to obtain lactose group functionalized arborescent lactose-containing polyamidoamine Dm-Lac (m=1, 2, 3), and finally modifying the surface of gold nano-clusters with the arborescent lactose-containing polyamidoamine under the mutual actions of Au-S, thereby obtaining lactose-containing polyamidoamine modified gold nano-clusters (Dm-Lac@AuNCs) of different generations. The synthesis method provided by the invention is simple, and a simple and effective method is provided for preparing an efficient biosensor with thermosensitivity and targeting.
Owner:JIANGSU UNIV
Fluorescence detection method of total number of living bacteria
PendingCN111154831AEasy to operateThe detection process is fastMicrobiological testing/measurementFluorescence/phosphorescenceMicroorganismFluorescent staining
The invention belongs to the technical field of compound materials, and particularly relates to a fluorescence detection method of a total number of living bacteria. The fluorescence detection methodof the total number of the living bacteria comprises the following steps: conducting a mixing reaction on a to-be-detected sample, with an unknown number of the living bacteria, and fluorescent dye toobtain to-be-detected reaction liquid subjected to fluorescence staining; and detecting relative fluorescence intensity of the to-be-detected reaction liquid to obtain the number of the living bacteria in the to-be-detected reaction liquid. By means of the fluorescence detection method of the total number of the living bacteria, the number of the living bacteria which actually exist in an environment can be reflected, and the fluorescence detection method of the total number of the living bacteria is high in detection speed, convenient, simple, easy to operate, high in sensibility, accurate and good in dynamic range, can detect multiple kinds of microorganisms, and can achieve field monitoring.
Owner:西安润嬴生物科技有限公司
Hybridoma cell strain, and anti-chlamydia abortus monoclonal antibody secreted by hybridoma cell strain
ActiveCN108486066AHigh potencyStrong characteristicImmunoglobulins against bacteriaTissue cultureChlamydia abortusProkaryotic expression
The invention belongs to the field of immunology, and more specifically discloses a hybridoma cell strain, and an anti-chlamydia abortus monoclonal antibody secreted by the hybridoma cell strain. According to a preparation method, purified prokaryotically expressed chlamydia abortus major outer membrane protein (MOMP) is used for immunization of mouse as an antigen, indirect ELISA is adopted for screening of positive clones, and the hybridoma cell CA1-MM 01 capable of secreting the monoclonal antibodies aiming at chlamydia abortus major outer membrane protein is obtained. The identification ofthe monoclonal antibody in the aspects of the stability of the hybridoma cell after continuous continuous passage culture and cryopreservation, and the subtype and titer of the monoclonal antibody iscarried out, it is shown by results that the capacity of the hybridoma cell in secretion of antibodies is excellent and stable, the monoclonal antibody titer is high. It is shown that the obtained monoclonal antibody possesses extremely high specificity and combination capacity with chlamydia abortus.
Owner:CHINA AGRI UNIV
Self-crosslinking fluorescent latex based on aggregation-induced emission mechanism and preparation method thereof
ActiveCN107674537AStrong fluorescent propertiesPromote intramolecular movement restrictionLuminescent paintsCross-linkIsooctyl acrylate
The invention discloses a self-crosslinking fluorescent latex based on an aggregation-induced emission mechanism and a preparation method thereof. The self-crosslinking fluorescent latex is prepared from the following raw materials: water, an acrylate reaction mixture, an anionic emulsifier, a nonionic emulsifier and a water-soluble initiator, wherein the acrylate reaction mixture is prepared fromthe following raw materials in mass percentage: 0.05-1wt% of E-bis-1,2-benzylaminophenyl-1,2- diphenylethylene, 30-55wt% of methyl methacrylate, 25-35wt% of isooctyl acrylate, 5-15wt% of methacrylicacid, 1-10wt% of diacetone acrylamide and 1-10wt% of adipic acid dihydrazide. According to the self-crosslinking fluorescent latex and the preparation method thereof, cross-linked polymer chain segment wrapping and constraining effect is used to restrain intramolecular motions of connected fluorescent molecules, thereby enabling the realization of fluorescence emission. The obtained fluorescent latex can be applied to the fields of biology or optics.
Owner:SUZHOU JIREN HIGH TECH MATERIAL CO LTD
Preparation method and application of imine bond connected fluorescent covalent organic framework
ActiveCN113929905ASimple methodStable structureOther chemical processesWater contaminantsAcyl groupPhenyl group
The invention discloses a preparation method and application of an imine bond connected fluorescent covalent organic framework, and belongs to the technical field of environmental protection. The preparation method comprises the steps: carrying out a Schiff base reaction on 1,3,6,8-tetra (4-formyl phenyl) pyrene and 4,4'-diamino-[1,1'-biphenyl]-3,3'-diol to synthesize the imine bond connected fluorescent covalent organic framework. According to the fluorescent covalent organic framework, imine bonds serve as connecting units, a large number of hydroxyl functional groups exist around the connecting units, and uranyl ions can be selectively combined. Meanwhile, based on the excellent fluorescence characteristic of the pyrenyl unit, a rapid and sensitive detection method for uranyl ions is established. In addition, the phenolic hydroxyl group in the fluorescent covalent organic framework connected with the imine bond can also reduce soluble U (VI) into insoluble U (IV), so that the adsorption capacity of uranyl ions is greatly improved. The method for preparing the imine bond connected fluorescent covalent organic framework is simple, stable in structure and environment-friendly, can be used for high-sensitivity detection and selective recovery of the uranyl ions, and has a good application prospect.
Owner:NANCHANG UNIV
Lubricating inhibitor for drilling fluid and preparation method thereof and drilling fluid containing lubricating inhibitor for drilling fluid
ActiveCN101717622BImprove thermal stabilityImprove stabilitySugar derivativesDrilling compositionThermodynamicsMethyl palmoxirate
Owner:北京奥凯立科技发展股份有限公司
A kind of fluorescent material and its synthesis method
ActiveCN111675709BStrong fluorescent propertiesImprove quantum efficiencySolid-state devicesSemiconductor/solid-state device manufacturingArylQuantum efficiency
Owner:WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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