19 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.

This invention relates to the field of optical sensing and imaging detection technology, specifically to a triphenylene-oxanthracene derivative, its preparation method, and a fluorescent probe for viscosity detection. The triphenylene-oxanthracene derivative has the general formula shown in Formula I. Compared to Rhodamine B, the synthesized triphenylene-oxanthracene derivative exhibits a larger Stokes shift. Furthermore, the fluorescence intensity of the triphenylene-oxanthracene derivative increases with increasing cell viscosity. In addition, the triphenylene-oxanthracene derivative can be further used to detect mitochondrial viscosity, exhibiting good mitochondrial targeting. In summary, the probe improves the Stokes shift, has a wide optical response pH range, and possesses excellent mitochondrial targeting.

The present invention provides a multiple stimulus-responsive photochemical sensor and its preparation method and application, belonging to the field of multiple stimulus-responsive material technology. Under a protective atmosphere, the present invention performs a Suzuki coupling reaction on 2-bromo-1,1,2-triphenylethylene, 2-formyl-4-thiopheneboronic acid, a palladium catalyst, an alkaline compound and a solvent to obtain 4-(1,2,2-triphenylethylene)thiophene-2-carboxaldehyde; under a protective atmosphere, 4-(1,2,2-triphenylethylene)thiophene-2-carboxaldehyde, 2-amino-4,6-dimethylpyrimidine, tetrabutylammonium hydrogen sulfate and a solvent are mixed to perform a condensation reaction to obtain a multiple stimulus-responsive photochemical sensor. The present invention provides applications of the obtained compound in acid-base response, ion sensing, photochromism, safety ink and cell fluorescence imaging. The preparation method has simple steps, low cost, mild preparation conditions, is suitable for industrial production, and has great application prospects.

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.

A hole transport material based on fluorene and triphenylethylene, which is selected from at least one of the compounds represented by formula (1): #imgabs0# In formula (1), Ar1 and Ar2 are each independently selected from a C6-C30 substituted aryl group or a C6-C30 unsubstituted aryl group, and repeated Ar1 or Ar2 are the same or different; R1 and R2 are each independently selected from hydrogen, a C1-C10 alkyl group, a C6-C10 substituted aryl group or a C6-C10 unsubstituted aryl group, and repeated R1 or R2 are the same or different; R is selected from an aniline group, a diphenylamine group, or the structure represented by formula (2) or formula (3): #imgabs1# The hole transport material can be used in organic electroluminescent devices, can reduce the operating voltage, and improve the device efficiency, and is a hole transport material with excellent performance.

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.

The invention provides a synthesis method of a boron-nitrogen heterocyclic ring purple dye and application of the boron-nitrogen heterocyclic ring purple dye in the aspects of aggregation-induced emission and photo-thermal conversion, and relates to the technical field of design, synthesis and application of functional dyes. According to the preparation method, a boron-nitrogen heterocyclic ring compound with a morpholine group, N-iodosuccinimide (NIS), 1-(4-phenylboronic acid pinacol ester)-1, 2, 2-triphenylethylene and 4-ethynyl triphenylamine are taken as main raw materials, and the boron-nitrogen heterocyclic ring purple dye of which the two sides are respectively connected with a triphenylamine group and a tetraphenylethylene group is generated through two times of electrophilic substitution and coupling reaction. The invention provides a feasible synthesis route and method, a purple end product is obtained, and the product shows the aggregation-induced emission characteristic in a test and has certain photo-thermal conversion capacity, so that the product is expected to be applied to the fields of aggregation-induced emission, photo-thermal conversion, photo-thermal antibiosis and the like.

The present invention belongs to the field of biomedical technologies, and particularly relates to a photothermal reagent, a photothermal reagent nanoparticle and a preparation method thereof. The photothermal reagent is NSQ2, and its molecular structural formula is as follows: The present invention designs and synthesizes a squarylium photothermal reagent with a donor-acceptor-donor molecular configuration. Through "dipole-dipole counteraction" and intermolecular interactions provided by triphenylethylene, NSQ2 can form a precise H-aggregated dimer through supramolecular self-assembly. After encapsulating NSQ2 into polymer nanoparticles, a precise H-aggregated dimer can still be formed. Under the irradiation of a near-infrared second-region laser (1064 nm, 1 W cm-2) for NSQ2 NPs, due to the exciton coupling of its H-aggregated excited state, the non-radiative transition rate is greatly increased, and the light energy is efficiently converted into heat energy to the greatest extent. Therefore, NSQ2 NPs have an ultra-high photothermal conversion efficiency and can induce complete tumor ablation in tumor-bearing mice.

The invention discloses a tetraphenyl ethylene-based AIE fluorescent probe as well as a synthesis method and application thereof, and belongs to the technical field of fluorescent probe detection. The preparation method of the AIE fluorescent probe based on tetraphenylethylene comprises the following steps: mixing 1-bromo-1, 2, 2-triphenylethylene, 4-formylphenylboronic acid, a catalyst and an organic solvent, and carrying out a heating reaction to obtain 4-(1, 2, 2-triphenylethylene) benzaldehyde; the preparation method comprises the following steps: dissolving 4-(1, 2, 2-triphenylethylene) benzaldehyde and 2, 9-dimethyl-1, 10-phenanthroline in an acetic acid solution, and carrying out a heating reaction so as to obtain the AIE fluorescent probe based on tetraphenyl ethylene. The synthesized novel AIE fluorescent probe can be specifically combined with Cu < 2 + >, so that efficient and sensitive detection of glyphosate and imaging of glyphosate in living cells are realized, and a raw material and a theoretical basis are provided for detection of glyphosate residues in foods and environments.

The invention discloses an environment-friendly plant-based degradable high polymer material and a preparation method thereof, and relates to the technical field of high polymer materials. When the environment-friendly plant-based degradable high polymer material is prepared, chitosan sequentially reacts with 5-formylfuran-3-boronic acid pinacol ester and 1-bromine-1, 2, 2-triphenylethylene to prepare modified chitosan, and the modified chitosan reacts with the 5-formylfuran-3-boronic acid pinacol ester to prepare the environment-friendly plant-based degradable high polymer material. The preparation method comprises the following steps: reacting hesperetin with 4-(chloromethyl)-1, 3-dioxolane-2-ketone to obtain functionalized hesperetin; the preparation method comprises the following steps: carrying out polycondensation on dimethyl adipate, a phosphorus-containing diacid ester monomer and 1, 6-hexamethylenediamine to prepare polyamide; reacting polyamide with formaldehyde to obtain modified polyamide; the modified polyamide, the modified chitosan, the functionalized hesperetin and the 1, 5, 7-triazabicyclo [4.4. 0] dec-5-ene are mixed and then subjected to injection molding, and the environment-friendly plant-based degradable high polymer material is prepared. The environment-friendly plant-based degradable high polymer material prepared by the invention has excellent anti-aging, flame-retardant and mechanical properties.