Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

92 results about "Tetraphenylethylene" patented technology

Tetraphenylethylene is a chemical compound that can be used in construction and in the manufacture of medical equipment, packaging, and electrical appliances.

SERS / fluorescent bimodal composite probe, preparation method and application thereof, and chiral glucose detection method

The invention belongs to the technical field of biological medicine detection, and particularly relates to an SERS / fluorescent bimodal composite probe, a preparation method and application thereof and a chiral glucose detection method, the composite probe is a gold nanorod modified by a tetraphenylethylene nuclear derivative, and the tetraphenylethylene nuclear derivative is a TPE nuclear molecular probe with AIE attributes; the tetraphenyl ethylene core derivative is prepared by reacting tetrabromo tetraphenyl ethylene with bis (pinacolato) diboron, oxidizing, and reacting with p-mercaptophenylboronic acid. Compared with the prior art, the method has the advantages that the limitations of long time consumption, insufficient sensitivity or specificity deficiency of the traditional chiral molecule identification method in the prior art are solved; and SERS (Surface Enhanced Raman Scattering) and fluorescence analysis are lack of methods and materials suitable for chiral molecule identification. According to the scheme, the composite nanoprobe can form a sandwich structure with molecules of an object to be detected, and rapid detection of chiral glucose is realized according to SERS intensity, fluorescence intensity and color change of the composite nanoprobe.
Owner:SHANGHAI INST OF TECH

Fluorescent polyethylene glycol terephthalate nanoparticles and preparation method thereof

The invention belongs to the technical field of nano-particles, and particularly discloses fluorescent polyethylene glycol terephthalate nano-particles and a preparation method thereof. The preparation method comprises the following steps: crushing and alkali-washing a raw material containing polyethylene glycol terephthalate in sequence to obtain polyethylene glycol terephthalate particles; mixing the mixed solution with an organic solvent to obtain a mixed solution, mixing the mixed solution with a polyethylene glycol terephthalate particle poor solvent, and filtering to obtain polyethylene glycol terephthalate nanoparticles; the nano-particles are mixed with tween-20, and nano-particle dispersion liquid is obtained; and carrying out swelling reaction on the nano-particle dispersion liquid and a tetraphenyl ethylene solution to obtain the fluorescent polyethylene glycol terephthalate nano-particles. According to the invention, the particle size and shape of the nanoparticles can be accurately controlled, the consistency of products is improved, and the phenomena of sedimentation and aggregation are reduced. By controlling the aggregation state of molecules, fluorescence quenching is effectively avoided, and the defect that traditional organic fluorescence aggregation is easy to quench is overcome.
Owner:LANZHOU UNIVERSITY OF TECHNOLOGY

A coating reflective film based on organic fluorescent coating and preparation method thereof

The present invention discloses a coated reflective film based on an organic fluorescent coating and a preparation method thereof. A new topological structure [4+4]COF (3D-TPE-COF) with tetraphenylethylene (TPE) units is prepared using tetrakis(4-aminophenyl)methane and tetrakis-(4-formyl-(1,1-biphenyl))ethylene as reaction monomers. The covalent organic framework material 3D-TPE-COF is added as a fluorescent material to a coating liquid to prepare a coated reflective film based on the organic fluorescent coating. The obtained reflective film can convert high-energy blue light, making the luminance of the backlight module higher and closer to white. At the same time, the 3D-TPE-COF fluorescent material and polymer particles can form hydrogen bonds in the coating liquid to prevent polymer particle agglomeration, thereby improving the wear and scratch resistance of the coated reflective film.
Owner:NINGBO CHANGYANG TECH

Mitochondrial / lysosome dual-targeting viscosity response AIE polymer probe as well as preparation method and application thereof

The invention discloses a mitochondrial / lysosome dual-targeting viscosity response AIE probe as well as a preparation method and application thereof. According to the probe, tetraphenylethylene (TPE) is used as an AIE light-emitting framework, and two flexible side chains containing hydrophilic units are introduced by utilizing the excellent structural modifiability of the TPE. The tail end of each side chain is modified with a trimethylamine group, quaternary ammonium salt cations derived from the trimethylamine group have localized positive charges, and combination with water molecules can be enhanced through ion-dipole interaction, so that the water solubility and biocompatibility of the molecules are effectively improved. Based on the design, the invention provides the AIE polymer probe which is constructed by taking TPE as a core and taking an amphiphilic flexible chain as a functional unit. The probe can establish a three-dimensional linear relationship among drug action time-regional viscosity-fluorescence lifetime (t-eta-tau) by capturing fluorescence lifetime signals inside and outside cells, so as to realize visual detection and quantitative analysis of average viscosity change of mitochondria and lysosome in the mitochondrial autophagy process.
Owner:SICHUAN UNIV

A side-chain tetraphenylethylene mono-arm thiol mannose polymer, its preparation method and application

This invention belongs to the field of glycopolymer technology, and particularly relates to a tetraphenylethylene mono-arm thiomannose polymer with a side chain, its preparation method, and its application. The chemical structural formula of the tetraphenylethylene mono-arm thiomannose polymer is shown in formula (I). Wherein, n is an integer ≥2. The glycopolymer of this invention exhibits high biocompatibility and fluorescent recognition properties, and innovatively utilizes efficient and rapid RAFT polymerization and click chemistry to prepare the tetraphenylethylene mono-arm thiomannose polymer.
Owner:SHANGHAI MEDICILON INC

An amide chain-bridged bis-tetraphenylethylene fluorescent probe and its synthesis method and application

The invention discloses an amide chain-bridged bis-tetraphenylethylene fluorescent probe and a synthesis method and application thereof, belonging to the technical field of organic synthesis and analytical chemistry. The fluorescent probe has a structure of an oxalamide-bridged bis-tetraphenylethylene unit and is chemically named 1,2-bis(2-(4-(1-phenyl-2,2-di-dodecylphenyl)vinyl)phenoxyacetyl)ethylenediamine, i.e., Bis-TPE. In the invention, 1,1-di-p-dodecyloxyphenyl-2-phenyl-2-p-hydroxyphenylethylene, 1,2-bis-chloroacetylethylenediamine, and anhydrous potassium carbonate are selected as synthetic raw materials, placed in a dry acetone system for reflux, and after sufficient reaction, the reaction mixture is extracted and distilled under reduced pressure, and the product is separated by silica gel column chromatography, thereby synthesizing the fluorescent probe. The fluorescence intensity of the fluorescent probe of the invention is 1000 nm in Hg 2+ The quenching is obvious in the presence of , and the presence of other ions has little interference with the detection results. The rapid weakening of the fluorescence intensity of the fluorescent probe can be used to detect Hg in the solution. 2+ Highly efficient and selective detection.
Owner:FUJIAN NORMAL UNIV

Benzothiazole-tetraphenyl ethylene derivative as well as preparation method and anti-counterfeiting application thereof

The invention discloses a benzothiazole-tetraphenyl ethylene derivative as well as a preparation method and anti-counterfeiting application thereof, 4-(1, 2, 2-triphenyl vinyl) acetophenone and o-aminothiophenol are reacted in dimethyl sulfoxide by taking I2 as a catalyst, and after the reaction is finished, separation and purification are performed to obtain a compound molecule 1-1. And 2, carrying out heating reaction on the obtained compound 1-1 and malononitrile under the action of alkali and a solvent, and separating and purifying to obtain a compound 1-2. The compound disclosed by the invention is low in preparation cost, simple and convenient to operate and simple in method, the compound shows fluorescence characteristics and can be applied to the fields of printing and dyeing, printing ink, cosmetics and the like, and meanwhile, the synthesis method can be used for synthesis in the fields of fine organic chemical engineering such as luminescent materials and trace detection technologies.
Owner:SHANTOU VOCATIONAL & TECH COLLEGE

Octavinyl polyhedral oligomeric silsesquioxane coupled tetraphenylethylene bromide and preparation method and application thereof

The invention discloses octavinyl polyhedral oligomeric silsesquioxane coupled brominated tetraphenylethylene as well as a preparation method and application thereof, and belongs to the field of fluorescent probes. Firstly, the rigid cage-shaped structure of POSS obviously enhances the aggregation-induced emission effect of TPE, so that the probe shows strong fluorescence emission in organic solvents such as DMF (Dimethyl Formamide) and the like; secondly, the probe shows an obvious solvent discoloration characteristic and shows adjustable optical response in different solvents, and meanwhile, the probe is endowed with excellent chemical stability by a POSS (Polyhedral Oligomeric Silsesquioxane) skeleton; thirdly, the probe has high selectivity and sensitivity recognition capability on heavy metal ions such as Fe < 2 + > and anions such as CN <->, the detection limit can reach 10 <-3 > mol / L, and visual detection can be realized through fluorescence change; in addition, a simple and convenient Heck coupling method is adopted for synthesis, the reaction condition is mild, the yield is up to 85%, and purification and large-scale production are easy.
Owner:YANGZHOU UNIV

Large-tonnage insulating pull rod joint adhesive and preparation method thereof

The invention discloses a large-tonnage insulating pull rod joint adhesive and a preparation method thereof, belongs to the technical field of high-voltage insulating materials, and aims to solve the technical problems that an existing large-tonnage insulating pull rod joint adhesive easily generates microcracks and interface layering under long-term electromechanical coupling stress and is difficult to early warn and self-repair. The preparation method comprises the following steps: firstly, synthesizing a polyurea microcapsule containing fluorescent dye tetraphenyl ethylene (TPE), and accurately controlling the wall thickness of the microcapsule through an interfacial polymerization technology to ensure that the microcapsule is broken under specified stress; then, the microcapsules are compounded with bisphenol A epoxy resin, nano montmorillonite and a silane coupling agent, and a curing agent is added to prepare an adhesive; when the adhesive joint is subjected to critical stress, the microcapsule is broken and the fluorescent dye is released, so that damage self-diagnosis is realized; the damage detection sensitivity, the mechanical property and the high temperature resistance of the adhesive are remarkably improved, and a reliable guarantee is provided for hot-line work of ultra-high voltage transmission lines.
Owner:CHINA THREE GORGES UNIV

Solid fluorescent material based on tetraphenylethylene derivative and application of solid fluorescent material in water content detection

The invention discloses a solid fluorescent material based on a tetraphenylethylene derivative and application of the solid fluorescent material in water content detection. On the basis of the special structure and functional design of a hydrogen bond organic framework, the spatial distribution and interaction mode of structural solvents (such as dimethyl sulfoxide and DMSO) and adsorption solvents (such as methanol, water and acetone) in the framework are accurately controlled, and on the premise that the integrity of a crystal structure is kept, the preparation method is simple and easy to implement. And reversible exchange and real-time optical monitoring of solvent molecules in the pore channels are realized. The material can generate obvious fluorescence color change (467-602nm) along with the change of the environmental water content, and has the advantages of high response speed, high sensitivity, good thermal stability and good recycling performance.
Owner:ANHUI UNIV

Polymer fluorescent nano-film, template-free self-assembly preparation method thereof and application of polymer fluorescent nano-film in sensing detection of nerve poison

The invention provides a polymer fluorescent nano-film, a template-free self-assembly preparation method thereof and application of a nerve poison sensing detection agent, and the polymer fluorescent nano-film is prepared on a gas-liquid interface through dynamic acylhydrazone bond condensation reaction by taking a column [5] arene hydrazide derivative and tetraformyl tetraphenylethylene as film building monomers. The polymer fluorescent nano-film is prepared through template-free self-assembly, the preparation process is simple, the conditions are mild, and the accurate regulation and control of the film thickness can be realized by changing the concentration of the precursor solution or the volume of the solution per unit area. The prepared film has a flat, smooth and defect-free surface, has excellent mechanical properties, shows good toughness and puncture resistance, shows excellent sensing performance on a nerve toxic agent simulant diethyl chlorophosphate, has excellent detection capability on a real nerve toxic agent sarin under the assistance of a solvent, and can be widely applied to the field of neurology and neurology, such as neurology, neurology, neurology, neurology, neurology, neurology, neurology, neurology, neurology, neurology, neurology and neurology. The method is expected to play an important role in the fields of public place safety monitoring and the like, and has a wide application prospect.
Owner:SHAANXI NORMAL UNIV

A temperature-responsive fluorescent nanomaterial, its preparation method and application

This invention provides temperature-responsive fluorescent nanomaterials, their preparation methods, and applications. The temperature-responsive fluorescent nanomaterials are nanoparticles formed from the compound TPE-CSO in an aqueous phase. The TPE-CSO compound comprises hydrophobic dinuclear fluorescent groups tetraphenylethylene (TPE) and cyanostyl styrene (CS) as the parent core, and temperature-responsive oligoethylene glycol (OEG) linked by benzyloxy groups as the hydrophilic chain. Furthermore, this invention also provides a temperature-responsive continuous light-harvesting system. This system constructs a reversible temperature-responsive light-harvesting system by loading the temperature-responsive fluorescent nanomaterials with hydrophobic dyes Rh6G and SR101, utilizing fluorescence resonance energy transfer. This system, as a catalyst for photocatalytic oxidative cracking reactions, exhibits a catalytic efficiency of 97%. This technology has great potential in preparing tunable luminescent catalytic materials and simulating the influence of temperature on photosynthesis, demonstrating broad application prospects.
Owner:CHANGZHOU UNIV

A preparation method of metal corrosion inhibition component and its product and application

The present invention discloses a method for preparing a metal corrosion inhibitor component, its products, and applications. The method involves reacting a halogenated tetraphenylethylene with aminopolyethylene glycol or aminoethanol to produce a metal corrosion inhibitor component. The component exhibits excellent corrosion inhibition performance and is easily detectable in corrosive media. Furthermore, the component emits strong fluorescence upon adsorption onto metal surfaces, enabling visual detection.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Aryl ketone derivatives containing tetraphenyl ethylene and carbazole units, methods of making and uses thereof

The present application relates to the technical field of force-induced color-changing materials, in particular to an arylmethanone derivative containing a tetraphenylethylene and carbazole unit, a preparation method thereof and application thereof. The structural formula of the arylmethanone derivative containing a tetraphenylethylene and carbazole unit is shown in the following: after being subjected to an acting force, the arylmethanone derivative not only has obvious color change, but also has significantly increased fluorescence emission intensity, can realize high-contrast fluorescence recording, and can be widely applied to inkless writing.
Owner:QINGHAI UNIVERSITY

A chiral metal coordination-based tetraphenyl ethylene chiral metal cage complex and a preparation method and application thereof

PendingCN122080424ALuminescent compositionsQuantum yieldChirality (chemistry)
This invention discloses a chiral Pt metal-organic complex based on chiral Pt metal coordination, its preparation method, and its applications, belonging to the field of supramolecular chemistry. This method transfers chirality from the metal node to the tetraphenylethylene plane through metal coordination, forming a helical structure during crystallization to obtain a high-performance circularly polarized luminescent material. The introduction of a chiral binaphthyl group solves the problem of excessive distance between the chirality and the luminescent unit. Rigid coordination and steric effects are used to directionally induce a helical conformation in tetraphenylethylene, obtaining a single chiral molecule. Furthermore, this method connects the chiral group via covalent bonds and uses aggregation-induced emission molecules instead of traditional dyes to prepare materials with both a large luminescence asymmetry factor and high fluorescence quantum yield, expanding the application range of metal-organic cages.
Owner:SHENGZHOU YANGTZE RIVER DELTA NEW ENERGY IND -EDUCATION INTEGRATION RES INST +1

A luminescent coordination polymer crystal material based on a tetraphenylstyrylpyridine ligand, a preparation method and application thereof

PendingCN122356495APolymer crystalsMethyl orange
The application discloses a luminescent coordination polymer crystal material based on a tetraphenylethylene pyridine ligand and a preparation method and application thereof, the chemical formula of the luminescent coordination polymer crystal material is [Cu(L)SCN.DMSO]n, wherein L is a 4.4'-[(2,2-diphenyl ethylene)di-4.1-phenylene]bis[pyridine] ligand, and n is an arbitrary value; wherein a Cu ion forms a two-dimensional structure with the 4.4'-[(2,2-diphenyl ethylene)di-4. n The crystal material can be used for fluorescence quenching detection of water-phase methyl orange; compared with the prior art, the crystal material is simple and reliable in application, the quenching constant of the crystal material for detecting water-phase methyl orange is as high as 1.9*10 6 M ‑1 , and the detection limit is as low as 0.019 mu M, so the crystal material is a luminescent coordination polymer crystal material for extremely sensitive detection of methyl orange at present and has a wide application prospect.
Owner:JIANGNAN UNIV

Diazine-functionalized tetraphenylethylene macrocyclic [6] arene as well as preparation method and application thereof

The invention relates to diazine functionalized tetraphenylethylene macrocyclic [6] arene as well as a preparation method and application thereof, and belongs to the technical field of synthesis of macrocyclic luminescent materials. The invention aims to solve the technical problem that the existing tetraphenylethylene macrocyclic [6] arene with a similar skeleton structure is difficult to identify subjects and objects in a dilute solution. The preparation method of the diazine-functionalized tetraphenylethylene macrocyclic [6] arene comprises the following steps: dissolving a tetraphenylethylene derivative T and a dichlorodiazine compound D in a solvent, adding alkali, and carrying out macrocyclization reaction in an inert gas atmosphere to obtain the diazine-functionalized tetraphenylethylene macrocyclic [6] arene as shown in a general formula (I). The diazine-functionalized tetraphenylethylene macrocyclic [6] arene provided by the invention shows double-state molecular recognition performance: cationic molecules can be recognized in a dilute solution, mononitrophenol pollutants can be recognized in an aggregation state, and the diazine-functionalized tetraphenylethylene macrocyclic [6] arene has the potential of being applied to macrocyclic fluorescent sensing materials.
Owner:HAINAN UNIV

A narrow-band emitting pyrene-based blue light material, and a preparation method and application thereof

The application belongs to the field of synthesis of organic semiconductors, and discloses a narrow-band emission pyrene-based blue light material and a preparation method and application thereof.The narrow-band emission pyrene-based blue light material has a structure as shown in formula (1).The pyrene-based organic functional light-emitting material prepared by taking the pyrene intermediate of the application as a precursor is prepared by introducing a biphenyl and triphenylamine or tetraphenylethylene at positions 1 and 3 of the pyrene;in the case of triphenylamine as a strong electron-donating group, the biphenyl units substituted at different positions are used to build the molecular conformation through space conjugation, and the tetraphenylethylene unit plays an important role in realizing the AIE characteristics.The preparation method is simple, the reaction condition is mild, the yield is high, the prepared material has good thermal stability, (deep) blue light emission, the solid quantum yield is greater than 0.7, the highest can be up to 0.9, and the maximum half-peak width is between 20-50 nm.The application is suitable for application scenarios such as high-definition display light-emitting devices.
Owner:GUANGDONG UNIV OF TECH

AIE matrix-coated efficient FRET-ISC synergistic composite photosensitive nano-material and preparation method and application of AIE matrix-coated efficient FRET-ISC synergistic composite photosensitive nano-material

The invention relates to the technical field of photocatalytic materials, and particularly discloses an efficient FRET-ISC synergistic composite photosensitive nano material based on aggregation-induced emission (AIE) matrix coating, a preparation method of the nano material and application of the nano material in photocatalytic degradation of organic pollutants. The material comprises an AIE characteristic matrix (such as tetraphenylethylene), an energy donor dye (such as coumarin 6) dispersed in the matrix and an energy acceptor dye (such as iodo-boron dipyrromethene) with a heavy atom effect, a donor emission spectrum and an acceptor absorption spectrum are overlapped, so that the synergistic effect of fluorescence resonance energy transfer and intersystem crossing (FRET-ISC) is realized, and the fluorescence intensity of the material is improved. The generation efficiency of singlet oxygen (1O2) is obviously improved. The material is prepared by adopting a microfluidic anti-solvent precipitation method, water-phase dispersed nano-particles (the particle size is 100-400 nm) are formed, the singlet oxygen quantum yield of the material reaches 0.75, the degradation rate constant (0.025 min <-1 >) of the material to rhodamine B is 4.3 times that of a single IBDP system, the degradation rate in 2 hours exceeds 90%, and the activity is kept above 80% after the material is recycled for 5 times. The invention solves the problems of aggregation quenching (ACQ) and narrow spectrum utilization of the traditional photosensitizer, has high stability, wide spectrum response and efficient catalytic ability, and is suitable for degrading organic pollutants (such as RhB, methylene blue and tetracycline) in a water phase.
Owner:DALIAN UNIV OF TECH

Berberine derivative with antibacterial activity and aggregation-induced emission property as well as preparation method and application of berberine derivative

The invention belongs to the field of design and synthesis of small organic molecules, and discloses a berberine derivative with antibacterial activity and aggregation-induced emission property as well as a preparation method and application of the berberine derivative. According to the invention, a triphenylamine group or a tetraphenylethylene group is respectively introduced to the 12th site of berberine, so that berberine derivatives TPA-BBR and TPE-BBR are synthesized. The berberine derivative provided by the invention shows an aggregation-induced emission (AIE) property, shows good photodynamic performance, and can be rapidly induced to generate a large amount of active oxygen under illumination. An in-vitro antibacterial activity experiment proves that the TPA-BBR and the TPE-BBR can be used for efficiently killing gram-positive bacteria. Besides, when the TPA-BBR is co-cultured with bacteria, the TPA-BBR can stain gram-positive bacteria and gram-negative bacteria, and the broad-spectrum staining performance of the TPA-BBR is shown.
Owner:ZHENGZHOU UNIV +1

Near-infrared i-region photosensitizer, preparation method thereof and application thereof in biological imaging

This invention relates to the field of fluorescent materials technology, disclosing near-infrared I-region photosensitizers, their preparation methods, and their applications in bioimaging. The near-infrared I-region photosensitizers include TPE-AT-DPTQ, TPE-EDOT-DPTQ, and TPE-HEXOT-DPTQ, possessing a D-π-A-π-D molecular structure. They utilize tetraphenylethylene as the electron donor, sterically hindered π-bridges (3-hexylthiophene, 3,4-ethylenedioxythiophene, and 3,4-dihexyloxythiophene) as bridging units, and DPTQ as the electron acceptor. By introducing long alkyl side chains, these near-infrared I-region photosensitizers significantly increase the intermolecular distance in the aggregated state, effectively preventing excessively dense molecular packing and further enhancing the AIE properties and fluorescence brightness of the molecules.
Owner:SHENZHEN UNIV

A turn-on fluorescent polymer, a synthesis method thereof and application thereof to detecting uranyl ions

ActiveCN119505134BFluorescence/phosphorescenceLuminescent compositionsFluorescent polymerUranyl
The present application belongs to the technical field of environmental detection, and particularly relates to a Turn-On type fluorescent polymer, a synthesis method thereof and application of the fluorescent polymer in detecting uranyl ions. The present application ingeniously uses the structural characteristics of tetraphenyl ethylene tetracarboxaldehyde to synthesize a fluorescent polymer TPE-COPs having a fluorescence enhancement response to uranyl ions at normal temperature. The fluorescent polymer is a "Turn-On" type fluorescent polymer, has advantages of high sensitivity, high selectivity and rapid response in detecting uranyl ions, can simultaneously improve the sensitivity and anti-interference ability, realizes all-round consideration of the detection limit, the detection range and the selectivity, and shows great potential and value in biomedical research and application. Meanwhile, the fluorescent polymer TPE-COPs of the present application can be completed at room temperature, has a simple process, does not need harsh environments such as high temperature, high pressure and oxygen-free, and is more suitable for industrial scale production application.
Owner:GUANGZHOU UNIVERSITY

A viscosity-responsive luminescent probe and its application in polymerization process analysis

A viscosity-responsive luminescent probe and its use for polymerization process analysis belong to the field of probe technology. The structural formula is as follows: It can be used to measure the viscosity of liquid samples and observe the process of polymer polymerization. This hemicyanine-tetraphenylethylene fluorescent probe L-TPE has dual luminescence properties, that is, it can emit red fluorescence and blue fluorescence of different intensities under different viscosity environments. Using this probe, we can monitor the changes in viscosity and conversion rate in the polymerization reaction in real time, and we can also visualize the polymerization process through the composite light of red fluorescence and blue fluorescence. The present invention provides a novel method for non-destructive real-time monitoring of polymerization reactions.
Owner:BEIJING UNIV OF CHEM TECH

A self-fluorescent high melt strength modified polypropylene, its preparation method and application

This invention discloses a self-fluorescent, high melt strength modified polypropylene, its preparation method, and its applications. The first step involves synthesizing polypropylene-A containing bromophenyl groups in its side chains, followed by the synthesis of polypropylene-B containing styrene groups in its side chains. Finally, polypropylene-A and polypropylene-B undergo a substitution reaction of their side chain groups under the action of a catalyst to generate a modified polypropylene with tetraphenylvinyl groups exhibiting aggregation-induced emission. The synthesized modified polypropylene product not only exhibits fluorescence but also has a significantly higher melt strength than ordinary polypropylene, making it suitable for manufacturing lightweight, heat-insulating polypropylene products such as foamed polypropylene.
Owner:WANHUA CHEM GRP CO LTD

Preparation method of tetraphenylethylene rigid structure modified PBAT copolyester material

The invention relates to the technical field of synthesis of biodegradable polyester high polymer materials, in particular to a preparation method of a tetraphenylethylene rigid structure modified PBAT copolyester material, tetraphenylethylene and PBAT are combined, so that the material has a certain fluorescence property, meanwhile, the crystallinity and mechanical property of the material can be improved, and the material has a good application prospect. The application range of the material is expanded; in order to avoid low reaction activity of 4, 4 '-(2, 2-diphenylethyl-1, 1-diyl) dibenzoic acid and alcohol caused by complex structures of 4, 4'-(2, 2-diphenylethyl-1, 1-diyl) dibenzoic acid and 1, 4-butanediol, the esterification reaction is firstly subjected to branched esterification and then is mixed, so that the yield is increased.
Owner:ZHEJIANG YONGSHENG FILM TECH CO LTD

Protamine-mediated fluorescence resonance energy transfer sensing system and application

The invention discloses a protamine mediated fluorescence resonance energy transfer (FRET) sensing system and application thereof. According to the protamine, a tetraphenylethylene-derived anionic molecule (4, 4 '-(((1, 2-stilbene-1, 2-disubunit) bis (4, 1-phenyl)) bis (aza-disubunit)) bis (4-sodium oxobutyrate)) is electrostatically enriched on the surface of the protamine, and a tetraphenylethylene group emits fluorescence after being aggregated and acts as an energy donor; furthermore, cationic dye (4-(4-dimethylaminostyryl)-1-methyl iodide pyridine) is added as an energy receptor, and a fluorescence resonance energy transfer (FRET) system is constructed. Through construction of the FRET system, long-wavelength fluorescence emission can be obtained, high-sensitivity detection of trypsin and screening of enzyme preparations are achieved, and the FRET system is expected to be applied to complex media.
Owner:BEIJING TECH & BUSINESS UNIV

A simultaneous response to ClO - Tetraphenylethylene-aromatic ring hybrid fluorescent probes with varying viscosity, their preparation methods, and applications

This invention belongs to the field of fluorescent probes and discloses a probe that can simultaneously respond to ClO ‑ Tetraphenylethylene-thiophene hybrid fluorescent probes with varying viscosity and their preparation methods and applications. The probes utilize a tetraphenylethylene-aromatic ring hybrid structure as the chromophore, with dinitrile isophorone and diaminomaleitrile as ClO₂ groups, respectively. ‑ Based on the recognition group, fluorescent probe molecules were designed and synthesized, with the following general structural formula: This type of fluorescent probe is effective against ClO₂. ‑ It exhibits rapid response, high specificity, and high sensitivity, with a strong responsiveness to viscosity, and can simultaneously detect ClO. ‑ Changes in viscosity levels and the environment provide new insights and potential detection tools for the early diagnosis of atherosclerosis.
Owner:THE FIRST AFFILIATED HOSPITAL OF XINXIANG MEDICAL UNIVERSITY +1

Application of fluorescent dyes in determining the pore pressure of cement-based materials in different environments

This invention relates to the field of cement-based materials technology, and in particular to the application of fluorescent dyes in determining the pore pressure of cement-based materials under different environments. The invention first dissolves a fluorescent dye in an organic solvent and water to obtain a fluorescent dye solution. The cement-based material is then mixed with water to obtain a paste. The fluorescent dye solution is then added to the paste, which is shaped and cut into thin slices. These slices are further placed under different environments, and the fluorescence intensity is measured using a fluorescence spectrometer to determine the pore pressure of the cement-based material in different environments. Higher fluorescence intensity indicates greater pore pressure. This invention uses the mechanochromic properties of tetraphenylethylene to determine the pore pressure of cement-based materials, which is convenient, quick, and provides good visual results.
Owner:TONGJI UNIV

Branched anion exchange membrane based on tetraphenyl ethylene as well as preparation method and application of branched anion exchange membrane

The invention discloses a tetraphenylethylene-based branched anion exchange membrane and a preparation method and application thereof, tetraphenylethylene is used as a branching agent, the tetraphenylethylene, an aromatic monomer and piperidone are subjected to superacid catalytic polymerization to prepare polyaryl piperidine with a star-shaped branched structure, and then quaternary ammonium functionalization and post-treatment are performed to obtain the branched anion exchange membrane (AEM). The branched structure can reduce the stacking density of polymer chains in the membrane, form a high-proportion free volume to improve the water absorption rate, reduce the OH <-> transmission resistance and improve the ionic conductivity; the rigid aromatic branched skeleton can inhibit excessive water swelling of the membrane; the free volume fraction of the membrane can be optimized by regulating and controlling the molar percentage of tetraphenyl ethylene in the copolymerized aromatic monomer, the AEM with high ionic conductivity and dimensional stability is obtained, and the AEM can be applied to an anion exchange membrane water electrolysis cell.
Owner:ANHUI UNIV

Titanium-doped zirconium MOF molecularly imprinted electrochemical luminescence sensor for high-sensitivity detection of HER2, and preparation and detection methods of titanium-doped zirconium MOF molecularly imprinted electrochemical luminescence sensor

The invention discloses a titanium-doped zirconium MOF molecularly imprinted electrochemical luminescence sensor for high-sensitivity detection of HER2, and a preparation and detection method thereof, and belongs to the technical field of detection. A titanium-doped zirconium-based metal organic framework (Ti-Zr-TPE MOF) is dispensed on the surface of a working electrode to serve as a luminescent material, Ti-Zr-TPE realizes luminous intensity multiplication in an aggregation state compared with Zr-TPE by further enhancing an intra-molecular motion limited (RIM) mechanism, and a luminous body preparation process, co-reactant screening and detection parameters (such as potential scanning rate and pH value) are systematically optimized, so that the luminous intensity of Ti-Zr-TPE is improved. A set of stable Ti (at) Zr-TPE luminescent system is formed. Meanwhile, dopamine (DA) is used as a functional monomer, and HER2 is subjected to molecular imprinting through a molecular imprinting technology, so that the electrochemical luminescence sensor of a quenching system is constructed. The luminescent material based on the novel tetraphenyl ethylene (TPE) derivative has the advantages of high luminescent intensity, low background signal, high stability and specificity, simplicity and convenience in operation and the like, and has obvious advantages compared with a previously developed sensor for detecting HER2. According to the invention, quantitative detection of HER2 can be realized, and an innovative solution is provided for clinical early warning.
Owner:BEIJING INST OF TECH