35 results about "J-aggregate" patented technology

An imaging element having a photoelectric conversion film which has a laminated structure comprising a p-type semiconductor layer and an n-type semiconductor layer between a pair of electrodes, wherein at least one of the p-type semiconductor and the n-type semiconductor contains an organic compound with controlled orientation; a photoelectric conversion film having at least one organic dye compound, wherein the organic dye compound forms a J aggregate, or the angle between the spectral absorption transition dipolar moment of the organic dye compound and the photoelectric conversion film plane is 40° or less, a photoelectric conversion element and an imaging element; and a method of applying an electric field thereto, and an imaging element which comprises a photoelectric conversion film (a photosensitive layer) having a bulk heterojunction layer as an intermediate layer, or a photoelectric conversion film having two or more repeating structure units of a pn junction layer comprising a p-type semiconductor layer and an n-type semiconductor layer between a pair of electrodes.

An imaging element having a photoelectric conversion film which has a laminated structure comprising a p-type semiconductor layer and an n-type semiconductor layer between a pair of electrodes, wherein at least one of the p-type semiconductor and the n-type semiconductor contains an organic compound with controlled orientation; a photoelectric conversion film having at least one organic dye compound, wherein the organic dye compound forms a J aggregate, or the angle between the spectral absorption transition dipolar moment of the organic dye compound and the photoelectric conversion film plane is 40° or less, a photoelectric conversion element and an imaging element; and a method of applying an electric field thereto, and an imaging element which comprises a photoelectric conversion film (a photosensitive layer) having a bulk heterojunction layer as an intermediate layer, or a photoelectric conversion film having two or more repeating structure units of a pn junction layer comprising a p-type semiconductor layer and an n-type semiconductor layer between a pair of electrodes.

The present invention discloses size controlled and stabilized nano-aggregates of molecular ultra small clusters of noble metals and a process for the preparation thereof. The present invention discloses single source multicolor noble metal spherical and uniform nano aggregates of 10-22 nm made up of discrete molecular ultra small noble metal (Nb) nanoclusters (MUSNbNC's) of 1-6 atoms. The MUSNbNC's are capped with amine / DCA (dicarboxy acetone) group acting as a steric and kinetic hindrance for core growth suppressing the further autocatalysis and conversion of super critical nucleus or growth by ripening and formation of nanoparticles and thus having intense fluorescence.

The invention relates to compound nanometer micelle for packaging a dye J aggregate and a preparing method and application of the micelle. The compound nanometer micelle comprises an amphipathic polymer carrier and the dye J aggregate packaged in the amphipathic polymer carrier. The tail end of the hydrophilic segment of an amphipathic polymer is provided with an electrified group. A dye is a water-soluble amphipathic dye. By means of the compound nanometer micelle, he dye can be located in the micelle in the form of the J aggregate; the dye J aggregate has outstanding structural stability; the micelle has an active reaction group, further modification is convenient, and the medicine packaging can be realized. The preparing method of the micelle is not limited by the concentration of the dye, and the dye with the low mass concentration can form the J aggregate at a high yield within a short period of time without long-term heating or dialysis or other operations.

A crosslinked product with excellent durability is provided that can remove intermediate colors of light while preventing brightness from deteriorating and thereby can improve color tone representation. The crosslinked product of the present invention includes a J aggregate of a dye and is characterized in that the dye is at least one dye selected from the group consisting of cyanine, merocyanine, squarylium, and porphyrin, the J aggregate of the dye is formed in a matrix resin, and the matrix resin has been crosslinked.

A light-sensitive silver halide photographic film material has been provided, said film material comprising a transparent support and on both sides thereof at least one light-sensitive emulsion layer having spectrally and chemically sensitized tabular silver halide grains rich in silver bromide, further having silver iodide in an amount of less than 3 mole % based on silver, with two flat parallel {111} crystal faces, said grains accounting for a total projective surface of said parallel crystal faces in said emulsion of at least 50%, further having an average aspect ratio of at least 2:1, a grain thickness of from 0.05 up to 0.15 mum, a site-directing azacyanine compound satisfying the general formulae disclosed herein in an amount of not less than 1x10-4 mole per mole of silver halide coated and one or more J-aggregating spectrally sensitizing dye(s), wherein a molar ratio amount between said site directing compound and said J-aggregating spectrally sensitizing dye(s) is at least 1:6 for a grain coverage of said {111} tabular grains exceeding 50%.A radiographic screen / film combination has also been described comprising said light-sensitive silver halide photographic film material and two supporting or self-supporting X-ray intensifying screens) comprising luminescent phosphors, wherein by contacting the film material with a sandwich of a pair of said intensifying screens and exposing said combination to X-rays, emission of radiation by said luminescent phosphors in the wavelength range for which said material has been made spectrally sensitive provides a black-and-white diagnostic image after processing of said exposed radiographic film material.

The invention discloses a highland road gradation crushed gravel material design method. The method comprises the following steps: 1, first-order filling: determining the bulk densities of single-sized aggregates having particle sizes of 4.75mm or more, establishing the relationship among the different aggregate proportion, a stamped density and a void ratio, and establishing an optimal composition ratio of the (20-31.5)mm aggregate to the (10-20)mm aggregate for forming a skeleton structure; 2, second-order filling: establishing an optimal composition ratio of the [(20-31.5)mm+(10-20)mm] aggregate to the (5-10)mm aggregate for forming a skeleton structure, and carrying out second-order filling to form a main skeleton; and 3, respectively obtaining the sieve residue rates of fine aggregates according to a standardized method, and filling the fine aggregates to the main skeleton to obtain a road gradation crushed gravel material. The design gradation pays attention to the skeleton effect of large particles and also gives consideration to the particle size sensitive area, so the generation of construction segregation and the like is avoided.

The present invention is related to electroluminescent polymer materials for use in optoelectronic devices. The electroluminescent polymer materials of the invention may comprise a polymer and an electroluminescent organic component, where the water-soluble polyanilin having an electron-hole conductivity may be used as the polymer and one of a cyanine dye, a porphyrin, in the form of J-aggregates, may be used as the electroluminescent organic component.

The invention provides an aggregate induced effect-based mercury ion fluorescence probe. The aggregate induced effect-based mercury ion fluorescence probe comprises two parts: a fluorophore which contains an aldehyde group structure and has the aggregate induced effect and a disulfydryl organic compound B. A preparation method comprises the following steps: preparing mercaptal-containing fluorescence molecules having the aggregate induced effect; dispersing the fluorescence molecules in a mixed solvent (a volume ratio of water to an organic solvent is greater than 80 percent) of water and N,N-dimethyl formamide or water and dimethyl sulfoxide, thus forming a fluorescence probe system. The aggregate induced effect-based mercury ion fluorescence probe provided by the invention is utilized for detecting mercury ions in water and has many advantages of fast fluorescence response effect, strong selectivity, high sensitivity, strong antijamming capability, low detection limit, simpleness inoperation and the like, the detection limit is up to 1*10<-8>mol.L<-1>, and online detection conditions on water quality of drinking water are met.

A viewing device for a stereo projection system, having a first and a second viewing window, each having an optically filtering filter layer system, wherein each viewing window has a filter spectrum in the visual spectral range having a plurality of pass bands that are separated from each other by blocking regions, and wherein each pass band of the filter spectrum of the first viewing window is covered by an associated blocking region of the filter spectrum of the second viewing window. Each filter layer system can be designed as an absorption filter layer system having a plurality of substances absorbing in differing spectral ranges, wherein at least one of the absorbing substances is a cyanine dye in the supramolecular configuration of a J-aggregate.

The invention discloses a biomass organic fertilizer for improving soil aggregates. The biomass organic fertilizer is prepared from the following raw materials in parts by weight: 34-36 parts of flue-cured tobacco leaf powder, 6-7 parts of bentonite, 3-4 parts of polyaspartic acid, 5-6 parts of diammonium phosphate, 9-10 parts of wheat gluten, 2-3 parts of nickel sulfate, 3-5 parts of ferric citrate, 58-64 parts of crop straws, 75-77 parts of elodea, 2-3 parts of a cellulase preparation, 4-5 parts of a protease preparation, 7-9 parts of tamarind fruits and proper amount of water. According to the biomass organic fertilizer disclosed by the invention, biological carbon and a plurality of types of organic matters are added, so that the content of water-stable large aggregates in the soil can be improved in short time and the porosity of the soil is enhanced; bacterial agents are utilized so that a beneficial bacterium community in the soil is enriched and a micro-biological environment of the soil is improved; and the planting performance of the soil can be improved without the need of carrying out engineering modification on the soil and the additional value of the soil is improved.

Multilayered nanoparticles and methods of producing same are provided for controlling plasmon-exciton distance. The nanoparticles include a silver core, a polyelectrolyte spacer layer exterior to the silver core, and a J-aggregate cyanine dye outer shell. This multilayer architecture served as a framework for manipulating the dual coupling of localized surface plasmon resonance exhibited by the silver core with the molecular exciton exhibited by the J-aggregate outer shell. The polyelectrolyte spacer layer promotes the formation of an excitonic J-aggregate while serving as a means of controlling the plasmon-exciton coupling strength through changing the distance between the core and the shell. An analytical expression based on Mie Theory and the Transfer Matrix Method is provided for describing the optical response of these multilayered nanoparticles. Computational and experimental results illustrate that the absorption wavelength of the J-aggregate form of the dye is dependent on both the distance of the dye layer from the silver core and the degree of dye aggregation.

The invention provides a preparation method and application of an indocyanine green J aggregate. The indocyanine green J aggregate is used as a photothermal therapeutic agent, and has the advantages of simple preparation method, strong safety and good photothermal effect.

A radiographic silver halide film material and a radiographic screen / film combination has been disclosed, said material having in at least one light-sensitive layer thereof an emulsion comprising {111} tabular silver halide grains rich in silver bromide, spectrally sensitive to irradiation in the wavelength range between 540 and 555 nm by the presence of a combination of at least one J-aggregating spectrally sensitizing cyanine dye according to the formula (I) and of at least one additional cyanine dye providing a shift of maximum absorption wavelength of said combination of less than 10 nm versus in the absence thereof, wherein said additional cyanine dye is at least one monomethine cyanine dye according to the formula (II), essentially having a solubilizing group or a latent solubilizing group, said dyes having been given in the description and in the claims of the present invention.

A viewing device for a stereo projection system, having a first and a second viewing window, each having an optically filtering filter layer system, wherein each viewing window has a filter spectrum in the visual spectral range having a plurality of pass bands that are separated from each other by blocking regions, and wherein each pass band of the filter spectrum of the first viewing window is covered by an associated blocking region of the filter spectrum of the second viewing window. Each filter layer system can be designed as an absorption filter layer system having a plurality of substances absorbing in differing spectral ranges, wherein at least one of the absorbing substances is a cyanine dye in the supramolecular configuration of a J-aggregate.

A method of mammography imaging includes exposing a patient to a peak voltage greater than 29 kVp using X-radiation generating equipment comprising rhodium or tungsten anodes. The film used in this method comprises a cubic grain silver halide emulsion layer on one side of the support and a tabular grain silver halide emulsion layer on the other side. The cubic grain silver halide emulsion layer comprises a combination of first and second spectral sensitizing dyes that provides a combined maximum J-aggregate absorption on the cubic silver halide grains of from about 540 to about 560 nm. The first spectral sensitizing dye is an anionic benzimidazole-benzoxazole carbocyanine, the second spectral sensitizing dye is an anionic oxycarbocyanine. The cubic grain silver halide emulsion layer also includes a mixture of gelatin or a gelatin derivative and a second hydrophilic binder other than gelatin or a gelatin derivative. The cubic silver halide grains comprise from about 1 to about 20 mol % chloride and from about 0.25 to about 1.5 mol % iodide, both based on total silver in the cubic grain emulsion layer, which cubic silver halide grains have an average ECD of from about 0.65 to about 0.8 μm. Moreover, the cubic silver halide grains are doped with a hexacoordination complex compound within part or all of the innermost 95% of the grains. The film can be exposed to provide a black-and-white image having a d(γ) / d(log E) value greater than 5.

The invention provides an intelligent membrane comprising a supramolecular structure and polymer materials and a preparation method of the intelligent membrane. The intelligent membrane comprises a basilemma of which the surface has a polycation graft chain, and a supramolecular structure of porphyrin, wherein the basilemma is obtained by the membrane surface grafting modification, and can interact with the porphyrin to realize porphyrin load and the supramolecular structure. When the pH of material liquid is less than 1.2, the porphyrin forms a J-aggregated supramolecular structure, the water flux of the membrane is smaller, and reject rate is high; when the pH of the material liquid is greater than 4.0, the porphyrin forms an H-aggregated supramolecular structure, the water flux of the membrane is greater, and reject rate is low. When the pH of the material liquid gradually changes from the pH less than1.2 to the pH greater than 4.0, the J-aggregated supramolecular structure is gradually transformed into the H-aggregated supramolecular structure, the water flux of the membrane is increased, the reject rate is lowered, the process is reversible, and the intelligent membrane has pH-responsiveness. The intelligent membrane and the preparation method thereof can be applied to the relevant fields of separation and purification, water treatment, chemical sensors and the like.

A radiographic silver halide film material and a radiographic screen / film combination has been disclosed, said material having in at least one light-sensitive layer thereof an emulsion comprising {111} tabular silver halide grains rich in silver bromide, spectrally sensitive to irradiation in the wavelength range between 540 and 555 nm by the presence of a combination of at least one J-aggregating spectrally sensitizing cyanine dye according to the formula (I) and of at least one additional cyanine dye providing a shift of maximum absorption wavelength of said combination of less than 10 nm versus in the absence thereof, wherein said additional cyanine dye is at least one monomethine cyanine dye according to the formula (II), essentially having a solubilizing group or a latent solubilizing group, said dyes having been given in the description and in the claims of the present invention.

The assembly is made up of: a) a support including a mesoporous coating whose pores have an average diameter dimensioned so as to enable molecules from the family of cyanines to penetrate them, and b) a layer of molecules from the family of cyanines and organized into J-aggregates within the pores of the coating. The assembly moreover includes Quantum Dots located within the same pores as those containing the J-aggregates, the Quantum Dots maintaining J-aggregates structure. A method for producing such an assembly is also described.

The assembly is made up of: a) a support including a mesoporous coating whose pores have an average diameter dimensioned so as to enable molecules from the family of cyanines to penetrate them, and b) a layer of molecules from the family of cyanines and organized into J-aggregates within the pores of the coating. The assembly moreover includes Quantum Dots located within the same pores as those containing the J-aggregates, the Quantum Dots maintaining J-aggregates structure. A method for producing such an assembly is also described.

A fluorescent material includes at least one organic compound with molecular stacking of H-aggregate or J-aggregate. When a first color light illuminates the fluorescent material, the organic compound with molecular stacking of H-aggregate or J-aggregate converts the first color light to a second color light.

The invention relates to a preparation method and application of a J aggregate photothermal nano-agent constructed based on dyes and polymers. The nanophotothermal reagent takes fluoroborondipyrrole dye molecules and high molecular polymers as basic building units, and is co-assembled in an aqueous solution to obtain a J-aggregate nanosolution that can be stably dispersed in the aqueous system. The formation of J aggregates changes the photophysical / chemical properties of the dye molecules, the absorption spectrum is red-shifted by more than 100 nanometers, and the molar extinction coefficient increases significantly, showing a good photothermal conversion effect. Combined with further supramolecular structure remodeling, the morphology of the J-aggregate material is transformed into nanoparticles, the cellular uptake rate of the material is enhanced, and the biological application of the material is better realized. The J-aggregate nanophotothermal material proposed in the present invention has many advantages such as good biocompatibility, high photothermal conversion efficiency, and resistance to photobleaching, and has broad application prospects in the fields of photothermal therapy and photoacoustic imaging.

An inventive ink for ink jet printing which comprises water, preferably a pigment, as a solvent and at least one colorant, wherein the colorant absorbing visible light and thus stains the ink, is characterized in that the ink contains at least one further coloring agent, which in the water is dissolved in the solution and forming J-aggregates, wherein the J-aggregates absorb NIR radiation for radiation drying of the ink.

The invention provides an intelligent membrane comprising a supramolecular structure and polymer materials and a preparation method of the intelligent membrane. The intelligent membrane comprises a basilemma of which the surface has a polycation graft chain, and a supramolecular structure of porphyrin, wherein the basilemma is obtained by the membrane surface grafting modification, and can interact with the porphyrin to realize porphyrin load and the supramolecular structure. When the pH of material liquid is less than 1.2, the porphyrin forms a J-aggregated supramolecular structure, the water flux of the membrane is smaller, and reject rate is high; when the pH of the material liquid is greater than 4.0, the porphyrin forms an H-aggregated supramolecular structure, the water flux of the membrane is greater, and reject rate is low. When the pH of the material liquid gradually changes from the pH less than1.2 to the pH greater than 4.0, the J-aggregated supramolecular structure is gradually transformed into the H-aggregated supramolecular structure, the water flux of the membrane is increased, the reject rate is lowered, the process is reversible, and the intelligent membrane has pH-responsiveness. The intelligent membrane and the preparation method thereof can be applied to the relevant fields of separation and purification, water treatment, chemical sensors and the like.

The invention belongs to the technical field of biological materials, and particularly relates to a cyanine dye FD-1080 J-aggregate as well as a preparation method and a biological application thereof. The preparation method comprises the steps that cyanine dye and phospholipid are self-assembled through a thin film hydration method to form an aggregate solution, and the cyanine dye is organic small molecule heptamethine cyanine fluorescent dye and is marked as a fluorescent probe FD-1080. The maximum absorption and emission peaks of the prepared J-aggregate are both greater than 1300 nm, andthe red shift of the J-aggregate is 300 nm or above compared with that of a monomer of the J-aggregate; the J-aggregate is uniform in size and has good water solubility and biocompatibility; under excitation of a 1064 nm laser, non-invasive brain and leg blood vessel fluorescence imaging of 1500 nm or above can be achieved, and high spatial resolution and signal-to-noise ratio are achieved. By utilizing the J aggregate, real-time dynamic vascular imaging of carotid artery of a hypertensive rat can be realized, and a clinically applied antihypertensive drug can be rapidly evaluated.

The present invention is related to electroluminescent polymer materials for use in optoelectronic devices. The electroluminescent polymer materials of the invention may comprise a polymer and an electroluminescent organic component, where the water-soluble polyanilin having an electron-hole conductivity may be used as the polymer and one of a cyanine dye, a porphyrin, in the form of J-aggregates, may be used as the electroluminescent organic component.

A color correction filter that while inhibiting any drop of luminance of image display apparatus, removes intermediate color light to thereby attain an enhancement of color tone expression of the image display apparatus, and that excels in durability. The color correction filter is color correction filter (10) characterized in that it has color correction layer (11) and two protective layers (12), the color correction layer (11) containing a J-aggregate of dye, the dye being at least one dye selected from the group consisting of cyanine, merocyanine, squarylium and porphyrin, and that the color correction layer has a half-value width of maximum absorption peak ranging from 5 to 30 nm, and that the two protective layers (12) are provided on both major surfaces of the color correction layer (11), respectively.

A measuring method for a mixing proportion of coarse and fine aggregate relates to the field of building construction. A first contrast group is prepared, aggregate of the particle size of 0mm to 120mm is separated into eight piles of aggregate via screen meshes in the diameters of 80mm, 40mm, 20mm, 5mm, 1mm, 0.5mm and 0.25mm sequentially, and containers of the same model are used to take aggregate from the eight piles to form eight groups numbered from 1 to 8 respectively; and a second contrast group is prepared, containers of the above model are used, aggregate of any two of the eight piles is taken and mixed and stirred fully in one container, and twenty eight groups of mixed aggregate, numbered from 9 to 36, are obtained via all combination manners. The groups in the numbers from 1 to 36 are filled into glass grooves of the same depth, length and width, and smoothed out, a power switch of a ground geological radar 2 is switched on, a handheld rod 1 is held by two hands, and pushed to move in the same heights, over the numbers 1 to 36, along the glass grooves, and radar oscillograms of the first and second contrast groups are obtained. The method has the advantages that whether coarse and fine concrete aggregate is mixed uniformly can be detected at any time in the construction process.