34 results about "Polydiacetylenes" patented technology

A microarray includes a solid substrate having a surface, the surface having a plurality of binding spots and a plurality of reaction moieties bound to the binding spots. A reaction moiety includes a plurality of polyacetylene monomers, the polyacetylene monomers having a first coupling region and a second coupling region, the first coupling region having a first functional group operable to bind to the binding spot and the second coupling region comprising a second functional group operable to bind to an accessory molecule; and an accessory molecule having a binding region and an analyte reaction region, the analyte reaction region operable to selectively bind to the target analyte, and the binding region operable to bind to the second coupling region of the polyacetylene monomer. Upon binding a target analyte with the reaction moiety, a color change from the polyacetylene monomer occurs and the reaction moiety produces fluorescence.

There is provided a polydiacetylene supramolecule comprising diacetylene molecules, capable of immobilizing a receptor molecule having a thiol group. Since the polydiacetylene supramolecule has a receptor immobilized thereon having a thiol group, for example, an antibody, and thus shows color transition when reacting with a sample, an antigen can be detected through specific color transition of the polydiacetylene when employing in a receptor-ligand reaction, for example, an antibody-antigen reaction.

The present invention relates to colorimetric polydiacetylene (PDA) sensor arrays for detection of analytes and levels thereof in aqueous solutions. In particular the present invention relates to methods of characterizing an aqueous solution for at least one analyte, comprising the steps of a) providing a sensor array comprising at least two different poly-diacetylenes, wherein said poly-diacetylenes are spatially separated and individually addressable,b) contacting said sensor array with a sample of said aqueous solution,c) measuring the colorimetric response of said poly-diacetylenes to theaqueous solution,wherein said poly-diacetylenes are polymerized from a composition comprising one or more diacetylene monomer(s) said poly-diacetylenes are capable of a colorimetric response upon contact with said analyte, and wherein the at least one analyte is selected from the group consisting of an organic molecule with a molecular weight below 2000 g / mol, salts thereof and an inorganic salt.

The invention discloses an acrylate-based polydiacetylene thermochromic material and its preparation method and application. The preparation method comprises: (1) in a light-proof environment, photoinitiator Irgacure 369, trimethylolpropane Triacrylate (TMPTA) and 10,12-pentacosadiynoic acid (PCDA) are mixed to obtain an emulsion; (2) sequentially utilize LED light and ultraviolet light to irradiate the above emulsion to obtain acrylate-based polydiacetylene Thermochromic material. It solves the problem that traditional polydiacetylene thermal response composite materials need to use volatile organic solvents, which will have many adverse effects on material properties and easily cause secondary pollution.

The present disclosure relates to an ultrasound phantom for a focused ultrasound wave. More specifically, the present invention provides an ultrasound phantom which mimics a body so as to correspond to a speed of sound in the body, in which agarose, sucrose, polydiacetylene vesicle, and distilled water are mixed, and a specific part onto which an ultrasound wave is irradiated by a focused ultrasound transducer is gradually discolored in accordance with a temperature.

The present invention provides a method for the preparation of thermally reversible discoloration composites based on polydiacetylene (PDA) and metal-organic frameworks (MOFs), that is, dispersing pure diacetylene monomer (DA) into dimethyl sulfoxide ‑In a mixed solvent of deionized water; disperse the metal-organic framework compound in deionized water, and add it to the acetylene monomer solution to form a mixed solution; then ultrasonicate the mixed solution at 65~80°C for 30~60 min, Assemble to obtain a white suspension; then irradiate and polymerize the white suspension under ultraviolet light with a wavelength of 254 nm to obtain a blue suspension, which is a thermally reversible color-changing composite material. In the present invention, through the interaction between PDA and MOFs, the disordered PDA conformation can be restored to an ordered conformation arrangement after heating, so that the composite material can quickly recover from purple red to blue, so the composite material has excellent The thermally induced reversible discoloration behavior can be used as a temperature sensor in many fields.

An organic EL display device (100) includes a plurality of pixels, and also includes an element substrate including organic EL elements (3) respectively located in the plurality of pixels and a bank layer (48) defining each of the pixels; and a thin film encapsulation structure (10) covering the plurality of pixels. The thin film encapsulation structure includes a first inorganic barrier layer (12) and an organic barrier layer (14) in contact with a top surface or a bottom surface of the first inorganic barrier layer. The plurality of pixels include a red pixel, a green pixel and a blue pixel. The organic EL display device further includes a polydiacetylene layer (52) selectively provided on a second inorganic barrier layer (16) of the thin film encapsulation structure on the blue pixel and exhibiting a blue color. The polydiacetylene layer is a polymer of 10,12-pentacosadiynoic acid.

The present invention belongs to the field of molecular biology, and specifically discloses a method, a primer group and a kit for detecting miRNAs-21. According to the present invention, in the method, gold nano-rod modified single-stranded DNA and polydiacetylene micro-tube modified single-stranded DNA form gold nano-rod modified polydiacetylene micro-tubes through hybridization pairing so as to quench the polydiacetylene micro-tube end head optical waveguide fluorescence, the miRNA-21 can catalyze the self-assembly of the hairpin probe to form the double-stranded structure after the gold nano-rod modified polydiacetylene micro-tubes, the H1 probe, the H2 probe and the sample to be tested are mixed, and single-stranded substitution is performed through toehold so as to recover the polydiacetylene micro-tube end head optical waveguide fluorescence, such that the miRNAs-21 content in the sample to be tested can be detected according to the fluorescence intensity change; and the experiment results show that the detection method has advantages of high miRNAs-21 detection sensitivity, high miRNAs-21 selectivity, simple, sensitive and fast detection process, and accurate detection result.

Polydiacetylenes (PDAs) and PDA / ZnO nanocomposites based on the monomers: 10,12-pentacosadiynoic acid (PCDA), 10,12-tricosadiynoic acid (TCDA) and 10,12-docosadiynedioic acid (DCDA) monomers are chromatic chemical sensing agents for selected organic liquids. Thermochromically reversible compositions include PCDA and nanosize ZnO having a particle size range less than 100 nm.

The invention provides polydiacetylene with a spiral structure as well as a preparation method and an application of polydiacetylene. According to the preparation method of polydiacetylene, polydiacetylene with the spiral structure is obtained from a benzaldehyde diacetylene film by irradiating with super-chiral light for 25-40 min, wherein the ultra-chiral light is formed by steps as follows: a laser beam emitted by a 325 nm helium-cadmium laser is split into two opposing laser beams by an ultraviolet beam splitter, the two opposite laser beams pass through a Glan prism and a 1 / 4 polaroid respectively, and two opposite circularly polarized beams are obtained, and standing waves, namely, the super-chiral light, are formed by the two opposite laser beams in the interference region. Resultsshow that polydiacetylene obtained from the benzaldehyde diacetylene film irradiated by the super-chiral light has better spiral structure and stronger chirality, and has stronger interaction and is more sensitive in detection when used for detecting amino acids.

The invention discloses a polydiacetylene micro-tube material and a preparation method of the micro-tube material by using hierarchical self-assembly. The method is characterized by comprising the following steps of: firstly synthesizing coumarin or a melamine modified diacetylene molecule, assembling the coumarin or the melamine modified diacetylene molecule to obtain vesicae, adding cyclodextrin into the vesica of the coumarin or adding a metal ion into the vesica of the melamine modified diacetylene molecule, causing the resulting products to stand for a few weeks to obtain the polydiacetylene micro-tubes, wherein the coumarindiacetylene micro-tube is formed by connecting a coumarindiacetylene molecule and the cyclodextrin through interaction between a main part and an auxiliary part, and the melaminediacetylene micro-tube is formed by connecting a melaminediacetylene molecule and the metal ion through a coordinate bond. A single polydiacetylene micro-tube is good in operability, excellent in mechanical performance, and good in stability, and can be directly used as a micro-sensor component. According to the micro-tube material and the preparation method disclosed by the invention, molecular design and self-assembly condition are simplified, so that the preparation of the polydiacetylene micro-tube can be carried out under a milder condition to realize the hierarchical self-assembly of a water system.

A hydrochromic polydiacetylene polymer patch and a method of manufacturing the same are provided. The hydrochromic polymer patch comprises a polymer matrix; and polydiacetylene present in the polymer matrix. The polydiacetylene has an ionic functional group in the repeating unit thereof. The ionic functional group is R−M+ or R+X−. R− is a carboxylate anion, M+ is an alkali metal cation, and R+ is a quaternary ammonium group, and X− is F−, Cl−, Br−, I−, PF6−, BF4−, bis(trifluoromethane)sulfonimide (Tf2N−), trifluoromethanesulfonate (TfO−), SCN−, or CH3COO−.

The invention provides a method for detecting silver ions. Specifically, the ethanol solution of 10,12-pentacosadiynoic acid is dripped into ethylenediamine by using vesicle suspension under the condition of avoiding light and stirring at room temperature. In the aqueous solution of disodium tetraacetate, the suspension was placed overnight at low temperature to make it self-assemble to obtain a colorless supramolecular suspension; then the colorless supramolecular suspension was polymerized under ultraviolet irradiation to obtain a blue polymer Diacetylene vesicle suspension. Compared with other detection methods, the polydiacetylene vesicle suspension designed in the present invention can be used for Ag detection in water environment. + The visual detection does not require complex biochemical modifications, large-scale equipment and tedious sample pretreatment process, the detection cost is low, and fast real-time analysis can be realized.

The invention discloses a polydiacetylene-based thermotropic reversible color-change composite material which is prepared by the following steps: sufficiently dissolving a 10,12-pentdiacetylenic acidmonomer into a dimethyl sulfoxide-water mixed solution, further adding a surface hydroxylation inorganic oxide, performing ultrasonic treatment for 50-60 minutes on the mixed solution at 70-80 DEG C,cooling to 0-5 DEG C, leaving to stand to carry out self-assembled incubation so as to obtain a colorless supermolecule solution, and polymerizing the colorless supermolecule solution under radiationof ultraviolet rays, thereby obtaining a polydiacetylene / hydroxylation oxide blue solution. According to the material, surface polyhydric inorganic particles are prepared and reacted with hydrogen bonds of -COOH at a diacetylene acid molecule end group, and after self-assembling and ultraviolet ray radiation polymerization, a universal thermotropic reversible color-change composite material of a polydiacetylene / hydroxylation inorganic matter system can be prepared. Since different polydiacetylene / hydroxylation inorganic matter composite materials have different thermotropic color-change temperatures, temperature controllability of a reversible color-change sensor can be achieved.

A preparation method of fluorescein-functionalized polydiacetylene vesicles capable of regulating colorful fluorescence emission and the construction of molecular logic gates belong to the technical field of organic conjugated polymer wave assembly. The present invention aims to solve the problems of cumbersome preparation conditions, high pH control requirements, low sensitivity of the functionalized substrate, and greater external interference of the existing fluorescence-regulated functionalized substrate. In the present invention, diacetylene and fluorescein groups are combined to obtain polydiacetylene composite vesicles. The composite vesicles are based on the phase transition of red phase and blue phase of polydiacetylene under external stimulation, and the effect of fluorescein groups on the pH value of the outside world. To realize the multi-stimulation polydiacetylene and fluorescein groups, both the color and the fluorescent emission change regulation of the multicolored fluorescence emission method. The composite vesicle of the invention has a simple preparation process, excellent fluorescence controllable performance, simple and convenient fluorescence control operation process, strong operability, strong resistance to environmental interference, and sensitive and rapid system response.

This organic EL display device (100) is provided with an element substrate which comprises multiple pixels and which comprises organic EL elements (3) arranged in each pixel and bank layers (48) defining the pixels, and a thin-film sealing structure (10) which covers the pixels. The thin-film sealing structure includes a first inorganic barrier layer (12), and an organic barrier layer (14) in contact with the upper surface or lower surface of the first inorganic barrier layer. The multiple pixels include red pixels, green pixels and blue pixels, and further have a first polydiacetylene layer (52a) which exhibits a blue color and which is provided selectively on a second inorganic barrier layer (16) of the thin-film sealing structure on blue pixels, and a second polydiacetylene layer (52b) which exhibits a red color and which is provided selectively on the thin-film sealing structure on red pixels. The first and second polydiacetylene layers are a polymer of 10,12-pentacosadiynoic acid.