12 results about "Triphenylethylene" patented technology

The invention belongs to the technical field of chemical analysis and detection, and provides a bimodal fluorescent probe and a preparation method and application thereof in hypochlorous acid detection, the chemical formula of the bimodal fluorescent probe is C68H44N2, and the preparation method comprises the following steps: weighing 2, 7-dibromo-9-fluorenone, 1-(4-phenylboronic acid pinacol ester)-1, 2, 4-triazole-1-one, 2, 4-triazole-1-one, 2, 4-triazole-1-one, 2, 4-triazole-1-one, 2, 4-triazole-1-one, 2, 4-triazole-1 The preparation method comprises the following steps: putting 1, 1, 2-triphenylethylene, a tetra (triphenylphosphine) palladium catalyst and potassium carbonate into a three-neck flask; sequentially injecting methylbenzene, absolute ethyl alcohol and water; carrying out heating reflux reaction, cooling to room temperature, carrying out extraction separation by using dichloromethane, collecting an organic phase, drying, carrying out rotary evaporation concentration to obtain a crude product, and purifying to obtain TPEO; dissolving TPEO and malononitrile in anhydrous dimethyl sulfoxide under the protection of argon, heating and stirring to react, cooling to room temperature, carrying out suction filtration, and washing the precipitate; the bimodal fluorescent probe can be applied to detection of hypochlorous acid, and has the advantages of specific selectivity, high sensitivity, wide detection concentration, high accuracy and the like.

The present application relates to fluorescent nanoparticles based on fluorinated zwitterionic random copolymer and its preparation method and application, the fluorescent nanoparticles include the single chain nanoparticles formed by poly trifluoroethyl methacrylate-co-methacryloyloxyethyl sulfobetaine, the molecular chain end of the poly trifluoroethyl methacrylate-co-methacryloyloxyethyl sulfobetaine is connected with ACQ type group selected from anthryl, perylene imide group and pyrene base or AIE type group selected from tetraphenyl ethylene base, carbazole base and cyanine-containing triphenyl ethylene group.The fluorescent nanoparticles based on the poly trifluoroethyl methacrylate-co-methacryloyloxyethyl sulfobetaine of the present application that terminal fluorescent group is terminated, has excellent controllable fluorescent luminescence performance.It is considered that the single chain nanoparticles have isolation effect, avoid the fluorescence quenching effect of ACQ type group, and can provide limited microenvironment for AIE type group, ensure the fluorescent luminescence performance of nanoparticles.

The present application relates to the technical field of pesticide preparation, in particular to a microemulsion containing fluroxypyr-isooctyl and aminoclopidol and a preparation method thereof, which is composed of the following components in percentage by mass: fluroxypyr-isooctyl 1-15%, aminoclopidol 1-15%, composite emulsifier 10-22%, co-emulsifier 5-11%, composite solvent 15-28%, antifreezing agent 2-6%, stabilizer 0.5-2.5%, and deionized water, with the total being 100%. The composite emulsifier is composed of dioctyl sodium sulfosuccinate and triphenyl ethenyl phenol polyoxyethylene ether phosphate triethanolamine salt, the composite solvent is composed of N,N-dimethyl decanamide and ethylene glycol diacetate, the stabilizer is composed of epoxidized soybean oil and citric acid, the co-emulsifier is dipropylene glycol methyl ether, and the antifreezing agent is glycerol. The microemulsion containing fluroxypyr-isooctyl and aminoclopidol and the preparation method thereof effectively solve a plurality of technical problems in the compounding process of the two active ingredients and have significant technical advantages.

The invention discloses an AIE fluorescent probe as well as a preparation method and application thereof, and the structural formula of the probe is shown in the specification. According to the fluorescent probe disclosed by the invention, a fluorescent signal is remarkably enhanced through the aggregation-induced emission effect of a triphenylethylene skeleton, the application effect of ONOO-in the biological field is effectively improved, and the adaptability to multiple task types is realized.

The application discloses an ultrahigh-temperature large-temperature-difference retarding agent for oil well cement and a preparation method thereof. The ultrahigh-temperature large-temperature-difference retarding agent for oil well cement is obtained through copolymerization reaction of water as a solvent, azobisdimethylaminoformamide hydrochloride as an initiator and monomers of vinyl phosphonic acid, diethyl vinyl phosphonate, divinylbenzene, triphenyl ethenyl phenol polyoxyethylene ether and N-vinyl pyrrolidone. The ultrahigh-temperature large-temperature-difference retarding agent for oil well cement is a polymer made of monomers with rigid groups, the polymer does not decompose under ultrahigh-temperature conditions and still maintains original retarding performance, the thickening time is convenient to adjust, and the retarding agent dosage is not increased, so the strength of the top cement stone is also developed relatively fast, and over-retarding is avoided.

Antibiotic compounds having both antibiotic and aggregation-induced emission (AIE) characteristics. The compounds comprise an azole antibiotic unit, for example naphthalimide triazole (NT), and an AIE unit, for example triphenylethylene (TriPE). The compounds act as an effective AIEgen with ROS generating capabilities. The present combinations of an azole antibiotic unit and an AIE unit do not negatively affect the antibacterial properties of the azole. Accordingly, the present compounds exterminate bacteria with both the antibacterial mechanism of the azole along with the ROS produced when the AIE unit is exposed to light. In addition, the intrinsic imagining ability of the present compounds enables them to be used as imaging tools to monitor the drug-bacteria interaction. Collectively, the present compounds provide multiple functions including imaging, monitoring, and bacterial infection inhibition for integrated diagnosis and treatment in clinical practices.

The application belongs to the field of herbicides, and particularly relates to a herbicidal microemulsion for peanut fields and a preparation method thereof, which is prepared from the following components in percentage by weight: 4-6% of imazapyr, 4-6% of quizalofop-p-ethyl, 1-3% of flurichloride, 15-20% of an emulsifier, 5-8% of a dispersant, 4-6% of an organic solvent, and the balance of water; the emulsifier comprises sodium dodecyl benzene sulfonate and triphenyl ethenyl phenol polyoxyethylene ether; the mass ratio of the sodium dodecyl benzene sulfonate to the triphenyl ethenyl phenol polyoxyethylene ether is 1:(0.9-0.95); the dispersant comprises a polycarboxylate dispersant and a comb-shaped graft polymerization surfactant; the mass ratio of the polycarboxylate dispersant to the comb-shaped graft polymerization surfactant is 1:(1.3-1.8). The herbicidal microemulsion has good solubility, dispersibility and stability, and low surface tension.

This invention discloses a synergistic insecticide of pyriproxyfen and lufenuron, its preparation method, and its application. The raw materials for preparation include an active agent, a surfactant, a solvent, an antifreeze agent, and deionized water. The active agent comprises pyriproxyfen and lufenuron in a weight ratio of (1-5):(1-5). This invention utilizes the combination of pyriproxyfen and lufenuron as active agents, achieving superior control effects compared to single-agent insecticides and extending the duration of insecticide control. The surfactant combination of alkylphenol polyoxyethylene ether sulfonate, tristyrene-phenol polyoxyethylene ether phosphate triethanolamine salt, and calcium dodecylbenzenesulfonate results in a microemulsion agent with high stability, exhibiting no turbidity under both hot and cold storage conditions.

The invention discloses an amino active site high-selectivity fluorescent probe as well as a preparation method and application thereof. The chemical structural formulas of the probe are respectively and correspondingly named as TBPN-1 and TBPN-2. The preparation method comprises the following steps: 1, reacting 1-(4-bromophenyl)-1, 2, 2-triphenylethylene with bis (pinacol) diborate to synthesize a first intermediate 1-(4-phenylboronic acid pinacol ester)-1, 2, 2-triphenylethylene, which is named as TPE-B; 2, enabling the TPE-B to react with 4, 7-dibromo-2, 1, 3-benzothiadiazole to synthesize a second intermediate 4-bromo-7-(4-(1, 2, 2-tristyryl) phenyl) benzo [c] [1, 2, 5] thiadiazole, which is named as TPE-BTD-Br, and synthesizing a second intermediate 4-bromo-7-(4-(1, 2, 2-tristyryl) phenyl) benzo [c] [1, 2, 5] thiadiazole; and 3, enabling the TPE-BTD-Br to respectively react with 4-aminophenylboronic acid pinacol ester or 4-(N-methylamino) phenylboronic acid pinacol ester, so as to synthesize TBPN-1 or TBPN-2. TBPN-1 and TBPN-1 fluorescent probes are designed and synthesized by taking tetraphenyl ethylene as a fluorophore, 4, 7-dibromo-2, 1, 3-benzothiadiazole as a connector and aromatic amino as a recognition group, and the probes are used for detecting nitric oxide.

The invention belongs to the field of ruthenium complex preparation, and particularly discloses a metal ruthenium complex containing a tetraphenylethylene group and a preparation method thereof.The preparation method comprises the steps that 4-(1, 2, 2-triphenylethylene) benzaldehyde, ammonium acetate and 1, 10-phenanthroline-5, 6-diketone are added into a reaction bottle under the light shielding condition, then an excessive acetic acid solution is added, and TM-1 is prepared through a reaction; adding tris (triphenylphosphine) ruthenium dichloride (II) and TM-1 according to the molar ratio of 1: 1.2, then adding excessive chloroform solution, and reacting to prepare the metal ruthenium complex TPE-Ru-3 containing the tetraphenyl ethylene group. The preparation conditions are mild, the synthesis efficiency is high, and the product purity is high; the tetraphenyl ethylene in the prepared metal ruthenium complex TPE-Ru-3 containing the tetraphenyl ethylene group is used as a conjugated group, and an MLCT (charge transfer coefficient) absorption band capable of effectively performing red shift on metal to a ligand is introduced, which means that the complex can absorb light with longer wavelength (more deviated to a red light region), so that more solar photons are captured, and the light capture efficiency is improved.

The invention belongs to the technical field of food safety detection, and particularly provides a dual-emission antibiotic aptamer sensor based on an AIE nano material and application of the dual-emission antibiotic aptamer sensor in antibiotic detection. The sensor comprises a blue luminous body G-VP3NP, a red luminous body NMM dye, a hairpin probe HP and a biological enzyme Exo III, wherein the G-VP3NP is an AIE nano particle VP3NP modified by a G-rich single chain DNA (Deoxyribose Nucleic Acid); the AIE nano particles VP3NP are triphenylethylene aggregates with carboxyl groups on the surfaces of the AIE nano particles VP3NP; the HP is hairpin DNA (Deoxyribose Nucleic Acid) containing a target antibiotic aptamer sequence. According to the sensor, the aptamer is used as a recognition element, the ratio of the blue fluorescence signal intensity to the red fluorescence signal intensity is used as an output signal, the false positive problem is effectively solved, and sensitive and accurate detection of antibiotics can be achieved.

The application relates to the technical field of concrete, and particularly discloses an anti-freezing concrete and a preparation method thereof. The anti-freezing concrete comprises the following components in parts by mass: 150-180 parts of cement, 65-78 parts of fly ash, 370-430 parts of sand, 560-720 parts of gravel, 1.5-2 parts of a polycarboxylate water reducing agent, 1.2-1.5 parts of sodium dodecyl benzene sulfonate, 1.7-2.1 parts of a triphenyl ethenyl phenol polyoxyethylene ether, 1.6-1.9 parts of a polyglycerol fatty acid ester and 75-90 parts of water. The preparation method of the anti-freezing concrete is mixing the components to obtain the anti-freezing concrete. The anti-freezing concrete prepared by the application has good anti-freezing performance.