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82 results about "Porphyrin molecule" patented technology
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Porphyrin Definition. A porphyrin is a large ring molecule consisting of 4 pyrroles, which are smaller rings made from 4 carbons and 1 nitrogen. These pyrrole molecules are connected together through a series of single and double bonds which forms the molecule into a large ring.
Porphyrin derivative nano-composite preparation and its application
ActiveCN103816538AGood biocompatibilityAvoid biotoxicityEnergy modified materialsAntipyreticDiseasePorphyrin molecule
The invention discloses a porphyrin derivative nano-composite preparation applied in photodynamic therapy and photothermal therapy of rheumatoid arthritis and an application thereof. The invention discloses an experimental method of a composite reagent of a water-soluble porphyrin derivative and a nano-material. The composite reagent has stable fluorescence characteristic and excellent biocompatibility. According to the composite reagent, drug release detection and tracing of an inflammation area can be realized, and enrichment in the inflammation area can be achieved through porphyrin molecule absorption of the nano-material. The experimental method provided by the invention is easy to implement, and has low toxicity and high specificity. The porphyrin derivative in the obtained composite reagent can undergo violet light excitation to generate singlet oxygen. The nanometer material in the composite reagent has excellent photothermal effect under the red light excitation condition. Drug enrichment and multi-model treatment by photodynamic therapy and photothermal therapy for inflammation disease can be realized, and the porphyrin derivative nano-composite preparation has wide medical clinical application value and prospect.
Owner:SOUTHEAST UNIV
Method for detection of gases based on fluorescence enhancement in porphyrin aggregates
InactiveUS20020146837A1Improve performanceSimple and efficient of detectionMaterial analysis by observing effect on chemical indicatorChemiluminescene/bioluminescenceQuantum yieldPorphyrin molecule
A fluorescence-based method for highly sensitive and selective detection of molecules of organic gases such as benzene, alcohol, chloroform, basic vapors including dimethyl methylphosphonate (DMMP) that is a simulant of Sarin, Soman and other chemical warfare agents having basic properties, is proposed. The method employs the effect of strong fluorescence change in thin films of aggregated porphyrins. In one preferred embodiment, the aggregation of porphyrin molecules leads to initial depression of chromophore emission due to self-quenching effect. The binding of analyte molecules to porphyrin sensitive layer forms porphyrin-analyte complexes, which destroy initial aggregate structure and induce the strong fluorescence enhancement. Aggregate-sensing films usually provide higher and faster response than porphyrins isolated in a polymer matrix. That results in strong enhancement of the florescence quantum yield and shift of the fluorescent spectrum in the direction of shorter wavelengths. The method can be used in fluorescence chemical sensors of organic gases for different applications including environmental monitoring, control of industrial processes and medicine.
Owner:ALTAIR CENT
Method for detection of organic vapors based on fluorescence enhancement in porphyrin aggregates
InactiveUS6623973B2Improve performanceHigh quantum yieldMaterial analysis by observing effect on chemical indicatorChemiluminescene/bioluminescenceQuantum yieldDimethyl methylphosphonate
A fluorescence-based method for highly sensitive and selective detection of volatile organic compounds such as vapors of benzene, alcohol, chloroform, dimethyl methylphosphonate (DMMP) that is a simulant of Sarin, Soman and other chemical warfare agents, is proposed. The method employs the effect of strong fluorescence change in thin films of aggregated porphyrins. In one preferred embodiment, the aggregation of porphyrin molecules leads to initial depression of chromophore emission due to self-quenching effect. The binding of analyte molecules to porphyrin sensitive layer forms porphyrin-analyte complexes, which destroy initial aggregate structure and induce the strong fluorescence enhancement. Aggregate-sensing films usually provide higher and faster response than porphyrins isolated in a polymer matrix. That results in strong enhancement of the florescence quantum yield and shift of the fluorescent spectrum in the direction of shorter wavelengths. The method can be used in fluorescence chemical sensors of organic vapors for different applications including environmental monitoring, control of industrial processes and medicine.
Owner:ALTAIR CENT
Tetrathiol-porphyrin compound as well as preparation method and application thereof
InactiveCN107759803AExcellent photosensitizerRetain photosensitivityOrganic chemistryEnergy modified materialsSolubilityQuantum yield
The invention relates to the field of functional coordination compounds and in particular relates to a tetrathiol-porphyrin compound as well as a preparation method and application thereof. Tetrathiol-porphyrin prepared by the method disclosed by the invention has strong coordination ability; when tetrathiol-porphyrin is combined with a UiO-66 framework material, a metal-organic framework material(UiO-66) modified with tetrathiol-porphyrin, namely UiO-66-H2TPP-(SH)4, has excellent water solubility, and the problems existing in the prior art that porphyrin molecular compounds are difficultly dissolved in water and are easy to aggregate and poor in stability are well solved, so that the quantum yield of singlet oxygen, fluorescence lifetime and light sensitive characteristics of porphyrin and derivatives thereof are greatly improved.
Owner:SHANDONG NORMAL UNIV
Quantum dot rate fluorescence probe for zinc ion detection and detection method of quantum dot rate fluorescence probe
InactiveCN104597015ASimple processLow priceFluorescence/phosphorescencePorphyrin moleculeFluorescence
The invention discloses a quantum dot rate fluorescence probe for zinc ion detection and a detection method of the quantum dot rate fluorescence probe. The quantum dot rate fluorescence probe for zinc ion detection is prepared from CdSe / ZnS quantum dots for emitting green fluorescence, and CdSe / CdZnS / ZnS quantum dots for emitting yellow fluorescence and porphyrin molecules in an electrostatic assembly manner; the molar concentration ratio of the two quantum dots to porphyrin is 1 to 10; the outer layers of the two quantum dots are wrapped by positively charged silicon dioxide shell layers; and the porphyrin molecules are negatively charged sulfur-based porphyrin molecules. By virtue of a rate fluorescence detection method, the quantum dot rate fluorescence probe adopts a simple process, is low in price, good in repeatability, suitable for the environment, drinking water and body liquid, and has a good application prospect.
Owner:SOUTHEAST UNIV
Branchy porphyrin molecule with the characteristics of intramolecular energy transfer and two-photon absorption
ActiveCN1974573AAbsorption cross section value increasedGood optical performanceOrganic chemistrySolid-state devicesTwo-photon absorptionPorphin
The present invention discloses one kind of branchy porphyrin molecule with the characteristics of intramolecular energy transfer and two-photon absorption, and features that the branchy porphyrin molecule is symmetric or asymmetric conjugated branchy molecule with porphin ring as core and triphenylamine element or carbazolyl radical as branch. The compound of the present invention has excellent optical performances, including strong two-photon absorption in both 532 nm and 800 nm bands and powerful up converting transmission in 650-750 nm band. It may be used in photodynamic treatment of two-photon absorption mechanism, light limitation in two-photon absorption mechanism and photovoltaic solar cell material.
Owner:苏州恒久光电科技股份有限公司 +1
Peroxide mimic enzyme and preparation and applications thereof
InactiveCN104014370ANo pollutionReduce manufacturing costOrganic chemistryMicrobiological testing/measurementPorphyrin moleculePeroxidase
The invention discloses a peroxide mimic enzyme and preparation and applications thereof, and relates to a horse radish peroxidase bio-mimetic technology, namely a technology of orderly fixing natural enzyme prothetic groups that are porphyrin molecules on the surface of a mass-produced carbon nitride nanosheet in an axial coordination manner so as to produce a mimic enzyme with a structure approaching a natural enzyme protein structure. The various catalytic kinetics indexes of the mimic enzyme are equivalent with that of a natural enzyme. On this basis, a general peroxide mimic enzyme CoII-Hemin@g-C3N4 nanometer biological probe is designed, and a high-sensitivity high-specificity biosensor used for detection of the H7N9 avian influenza virus is constructed, wherein the biosensor has characteristics of stable electrogenerated chemiluminescence output signals and a low detection lower limit. The mimic enzyme can be used in the aspects of biomedicine, clinical diagnosis, environment monitoring, judicial expertise, and the like.
Owner:NANJING UNIV OF SCI & TECH
Method for preparing phenylamino porphyrin self-assembled nanomaterial by adopting co-solvent method
ActiveCN106220636AImprove solubilityEnables controlled assemblyOrganic chemistryNanotechnologyPorphyrin moleculeNanodevice
The invention discloses a method for preparing a phenylamino porphyrin self-assembled nanomaterial by adopting a co-solvent method. The method comprises the following steps: 1) preparing CTAB, SDS, MTAB or P123 aqueous solution; 2) preparing a DMF solution of phenylamino porphyrin; and 3) adding the solution in the step 2) into the solution in the step 1), stirring for 40-50h at 25 DEG C, and performing centrifugal separation, to obtain a solid, namely the phenylamino porphyrin self-assembled nanomaterial. The method has the advantages of the original methods, the yield problem can be solved as a great amount of phenylamino porphyrin is dissolved in the DMF solution; by taking micelle as a confinement template, the self assembling can be conducted under the assistance of an emulsifying agent by changing the soluble state of phenylamino porphyrin molecules into a non-soluble state through the weak phase interaction between molecules, finally the porphyrin molecule assembled body with controllable shapes can be obtained, and the assembled material has an important role in the fields of photocatalysis, nanodevices and the like.
Owner:HENAN UNIVERSITY
Metal bismuth nanoparticle composite material and preparation method and application thereof
ActiveCN113089017ALow costLarge specific surface areaMaterial nanotechnologyElectrolytic organic productionEpoxyPorphyrin molecule
The invention relates to a supported metal bismuth particle composite material which is characterized in that metal bismuth particles are supported on a porous carbon carrier through a coupling agent with amino groups, and the particle size of the metal bismuth particles is 5-30nm. The preparation method comprises the following steps: loading tetraaminophenyl porphyrin molecules on porous carbon through simple two-step impregnation adsorption to form a modified porous carbon composite material, and then carrying out second-step impregnation adsorption on the modified porous carbon composite material and bismuth metal salt under a sodium borohydride reduction condition. Benefited from the confinement effect of porous carbon and the special stabilizing effect of the molecular coupling agent, the bismuth metal small nanoparticles are fixed on the porous carbon carrier in a strong binding form, the loading capacity is high, and the activity is high, so that the molecular coupling agent plays a role in enhancing the interaction between the bismuth metal nano particles and the carrier, and the self structure is not changed under the reduction condition. The supported metal bismuth particle composite material is used for preparing formic acid by carbon dioxide epoxy, has excellent catalytic activity and stability, and has obvious industrial advantages.
Owner:INST OF CHEM CHINESE ACAD OF SCI
Composite nanometer antibacterial material used for treating vancomycin drug resistant pathogenic bacteria
InactiveCN105412940AImprove surface affinityHigh affinityAntibacterial agentsEnergy modified materialsSilica particlePorphyrin molecule
The invention discloses a composite nanometer antibacterial material and a preparing method thereof. The composite nanometer antibacterial material is used for solving the problems that conventional target photosensitive drugs are complex to synthesize and poor in biocompatibility. The nanometer antibacterial material is formed by a triangle silver nanometer sheet of a core-shell structure, silicon dioxide particles and vancomycin-porphyrin molecules on the surface. A core of the triangle silver nanometer sheet serves as a host material to form a surface enhanced Raman scattering (SERS) signal, a silicon dioxide shell serves as a rigid platform to couple the vancomycin-porphyrin molecules to form a poly mode. The synthesis cost of the nanometer antibacterial material is low, the preparing method is simple, and the material has good biocompatibility and tissue permeability; in addition, the invention further discloses application to Raman images and photodynamics treatment of vancomycin drug resistant pathogenic bacteria.
Owner:LUDONG UNIVERSITY
Preparation method for porphyrin photosensitizer with visual photodynamic therapy characteristic
ActiveCN105622620ASimple processNo complex synthetic steps requiredOrganic chemistryEnergy modified materialsPhotodynamic therapyNitrate
The invention discloses a preparation method for a porphyrin photosensitizer with visual photodynamic therapy characteristic. According to the method, water-soluble porphyrin molecule react with soluble nitrate under acidic, shaded and room-temperature conditions so as to obtain a reaction system containing the porphyrin photosensitizer, and the system is subjected to treatment, thereby obtaining the porphyrin photosensitizer which is a nano aggregate and has cell imaging and photodynamic therapy characteristics. In addition, the preparation method provided by the invention is simple in process, easy in operation and relatively low in cost and has no need of complicated synthesis steps and aftertreatment steps, so that the popularization to production is facilitated.
Owner:PEKING UNIV
Porphyrin-chrysin compounds and anti-tumor activity thereof
ActiveCN109912607ATargetedReduce killing side effectsOrganic active ingredientsOrganic chemistryPorphyrin moleculeSinglet oxygen
The invention synthesizes novel porphyrin-chrysin derivatives. Porphyrin molecules are used as a carrier, the tumor tissue aggregation effect of the porphyrin molecules is used, meanwhile, the property that the porphyrin molecules can produce singlet oxygen to kill tumor cells is used and combined with natural anti-tumor activity of chrysin, so that the novel anti-tumor compounds are obtained, anda new direction is provided for research on anti-tumor drugs.
Owner:NANHUA UNIV
Conjugated dendritic electrically-induced pure red material and preparation method and use thereof
InactiveCN101418002AImprove solubilityEffective isolationOrganic chemistrySolid-state devicesSolubilityPorphyrin molecule
The invention provides conjugated dendritic pure red light emitting electroluminescent material, and a preparation method and application thereof. The material has a conjugated dendritic molecule which takes porphyrin as a core, truxene as a bridge and monofluoride as an antenna molecular and has a structural formula A. The material is prepared by the Lindsey condensation reaction of a derivative having a methanoyl of the truxene and the porphyrin. The method introduces a truxene system having a hydrotropic group to a metaposition of a porphyrin molecule to improve the solubility of the material and suppress fluorescence self-quenching, and increases intramolecular and intermolecular energy transfer through derivatization at 2, 7, 12-position of the truxene, so as to obtain high-efficiency pure light emission. The conjugated dendritic molecules are used as materials for a light emitting layer of an organic electroluminescent diode device and made into films by a simple spin coating process, and generate high-efficiency pure red light electrofluorescence without doping.
Owner:PEKING UNIV
Method for preparing ferrocenyl alkynyl porphyrin molecule possessing nonlinear optical activity and application thereof
InactiveCN102382147AConfirmed molecular structureHigh yieldMetallocenesNon-linear opticsPhotoinduced electron transferPorphyrin molecule
The invention discloses a method for preparing ferrocenyl alkynyl porphyrin molecule possessing nonlinear optical activity and an application thereof. The invention is characterized in that 5,15-dibromo-10, 20-diphenyl zinc porphyrin is taken as a raw material and reacted with ferrocenyl acetylene under the effect of a catalyst to obtain 5,15-ferrocenyl alkynyl-10, 20-diphenyl zinc porphyrin, then 5,15-ferrocenyl alkynyl-10, 20- diphenyl zinc porphyrin is treated by hydrochloric acid to obtain 5,15-ferrocenyl alkynyl-10, 20-diphenyl porphyrin. The obtained compound has high hyperpolarizability and obvious intramolecular photo-induced electron transfer structure characteristic, and has reverse saturable absorption characteristic, and can be used for nonlinear optics laser protection.
Owner:UNIV OF JINAN
Crosslinking hole transport layer material and preparation method thereof
InactiveCN109873086AImprove performanceImprove interface propertiesSolid-state devicesSemiconductor/solid-state device manufacturingPorphyrin moleculeTransport layer
The invention provides a crosslinking hole transport layer material and a preparation method thereof, and is applied into an OLED display panel. The OLED display panel comprises a substrate and OLED devices manufactured on the substrate at intervals; the OLED devices comprise a cathode, a hole transport layer, a light-emitting layer, an electron transport layer and an anode. The preparation methodof the hole transport layer comprises the following steps: providing a precursor solution comprising precursor molecules and an organic solvent, wherein the precursor molecules are porphyrin molecules or phthalocyanine molecules, and the precursor molecules comprise crosslinking radicals; preparing the pecursor solution onto the cathode, carrying out heat treatment so that a crosslinking reactionoccurs on the precursor solution to form a uniform and stable polymer film, namely the hole transport layer, so that the interfacial property of an ink-jet printing device is improved effectively, and the performance of the device is further promoted.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
Micro-nano reactor based on phthalocyanine bridging methylation cyclodextrin and preparation of micro-nano reactor
InactiveCN103446969AThe synthetic route is simpleMild reaction conditionsChemical/physical/physico-chemical processesMicro nanoPorphyrin molecule
The invention discloses a micro-nano reactor based on phthalocyanine bridging methylation cyclodextrin, and in particular relates to a supermolecule tubular micro-nano reactor for catalyzing cross coupling reaction generated by aryl halide and an organic boric agent. The micro-nano reactor has such a building mode that porphyrins molecules are enveloped into a cavity of methylation cyclodextrin; a hydrophilic clathrate is adopted to construct a hydrophilic surface of the reactor and is exposed to a water phase; hydrophobic alkyl chains are crossed with each other to form a hydrophobic interlayer of the micro reactor. According to the preparation method, the micro-nano reactor is obtained by supermolecules self-assembly of a phthalocyanine axial bridging methylation cyclodextrin host compound and an amphipathy porphyrin guest compound. The palladium-loaded micro-nano reactor prepared by the method has the advantages that the synthesis route is simple, the reaction conditions are mild, the aftertreatment is simple and convenient, and the yield is very high; the micro-nano reactor is suitable for amplification synthesis and actual production application. The coupling reaction yield is high, and the use of a toxic organic solvent is avoided; the micro-nano reactor serving as a catalyst for the coupling reaction has a wide application prospect.
Owner:NANKAI UNIV
Tumor phototherapy reagent based on cell membrane coating, as well as preparation method and application of tumor phototherapy reagent
ActiveCN104888219AInhibit self-quenchingHigh yieldEnergy modified materialsPreparing sample for investigationPorphyrin moleculeSide chain
The invention discloses a tumor phototherapy reagent based on cell membrane coating. The tumor phototherapy reagent is high molecular weight chitosan of which the side chain contains a photosensitizer molecule and a polyethylene glycol molecule. The invention further discloses a preparation method of the tumor phototherapy reagent and application of the tumor phototherapy reagent to preparation of a photosensitizer. Compared with the prior art, the reagent has the advantages that the toxicity to cells is very low under the condition of no irradiating, and under the irradiation of light with certain wavelength, the photodynamics toxicity is improved greatly when being compared with that of free porphyrin molecules. Above all, the self quenching effect between porphyrin molecules is solved effectively, and the cell membrane imaging and photodynamics tumor therapy based on the porphyrin molecules are achieved.
Owner:SOUTHEAST UNIV
Nanocomposite particles and preparation method thereof
InactiveCN110025596AHas a core-shell structureUniform shapeEnergy modified materialsPharmaceutical non-active ingredientsBenzoic acidPorphyrin molecule
The invention provides nanocomposite particles and a preparation method thereof. The preparation method of the nanocomposite particles comprises the following steps: dissolving ZrCl4 in N,N-dimethylmethylamide so as to form a ZrCl4 solution; sequentially adding terephthalic acid, benzoic acid, hydrochloric acid and meso-tetra(4-carboxyphenyl)porphine into the ZrCl4 solution so as to obtain organometallic framework nanoparticles embedded with porphyrin molecules; adding the organometallic framework nanoparticles into a buffer solution; and then, adding dopamine so as to form polydopamine by polymerization of dopamine molecules, thereby wrapping outer surface of the organometallic framework nanoparticles with the polydopamine so as to form nanocomposite particles with a core-shell structure,wherein thickness of the polydopamine layers is 5-50nm and size of the nanocomposite particles is 60-500nm. The nanocomposite particles prepared by the preparation method are uniform in appearance, good in dispersivity, low in biological toxicity, and excellent in photothermal effects and photodynamic therapeutic effects; and thus, the nanocomposite particles have good curative effects on tumors.
Owner:UNIV OF SHANGHAI FOR SCI & TECH
Fish meat freshness visual intelligent label based on metal porphyrin metal-organic frameworks (MOFs) and preparation method and application of fish meat freshness visual intelligent label
ActiveCN110189620AHandy indication of corruptionGuarantee quality and safetyStampsIdentification meansFiberPorphyrin molecule
The invention discloses a fish meat freshness visual intelligent label based on metal porphyrin metal-organic frameworks (MOFs) and a preparation method and application of the fish meat freshness visual intelligent label. The metal porphyrin MOFs are used as a color developing agent, and the fish meat freshness visual intelligent label comprises a fiber membrane with the surface biomimetic mineralized with the metal porphyrin MOFs. The preparation method comprises the steps that the metal porphyrin MOFs are loaded on the surface of the fiber membrane in a biomimetic mineralization mode throughinducing, and the fiber membrane with the surface biomimetic mineralized with the metal porphyrin MOFs is placed between a piece of paper and a plastic film for thermoplastic composition. The fish meat freshness visual intelligent label utilizes protein and polysaccharide to induce a MOFs biomimetic mineralization technology, porphyrin is used as organic ligand and metal ions are used as nodes, the problem that porphyrin molecules are prone to aggregating and the indicating effect is poor are effectively solved, the sensitivity and accuracy of the intelligent label are improved by a porous structure of the metal porphyrin MOFs, the rotting condition of fish is indicated simply, quickly and conveniently, and the quality safety of the fish is ensured.
Owner:SHANGHAI OCEAN UNIV
Tetrazole porphyrin metal complexes, synthesis thereof and applications of the metal complexes as dye sensitizing agents
InactiveCN105399750AImprove photoelectric performanceExcellent photoluminescence performanceLight-sensitive devicesOrganic chemistryPorphyrin moleculeTetrazole
The invention discloses synthesis of tetrazole porphyrin metal complexes and applications of the metal complexes as dye sensitizing agents for preparation of dye-sensitized solar cells. Tetrazole is good in photoluminescence performance and is introduced into a porphyrin ring through conjugated chemical bonds, thus largely improving luminescence performance of porphyrin molecules. Four meta-position tetrazole groups of tetrazole porphyrin are bonded to TiO2 in a horizontal bonding manner. Introduction of a metal changes orbital energy level distribution, thus increasing the electron transfer efficiency and further increasing the photoelectric conversion efficiency. Compared with traditional ruthenium dye, raw materials are simple and easily available, precious metal materials are not needed, and pollution to the environment is low. Accordingly, the tetrazole porphyrin metal complexes can be adopted as dye sensitizing agents and used for preparation of dye-sensitized solar cells. Results of photoelectric property tests show that the tetrazole complexes with different metals in the dye-sensitized solar cells have certain current outputting capabilities and have different photoelectric conversion efficiencies under standard illumination.
Owner:NORTHWEST NORMAL UNIVERSITY
Tailed porphyrin compound modified by N1-substituted 3, 4-dihydropyrimidine-2-ketone and preparation method thereof
InactiveCN102786527AEasy to useEasy to recycleOrganic chemistryEnergy modified materialsPhotodynamic therapyPorphyrin molecule
The invention provides a tailed porphyrin compound modified by N1-substituted 3, 4-dihydropyrimidine-2-ketone and a preparation method thereof. N1-substituted 3, 4-dihydropyrimidine-2-ketone small molecular compounds with biological activity are introduced to porphyrin molecules to form the novel porphyrin compound. The preparation method includes: fully dissolving monohydroxy porphyrin, adding the N1-substituted 3, 4-dihydropyrimidine-2-ketone, anhydrous potassium carbonate and acetone, and stirring at normal temperature; and removing the acetone after full reaction, adding water, filtering, drying and separating to obtain the tailed porphyrin compound. The tailed porphyrin compound modified by N1-substituted 3, 4-dihydropyrimidine-2-ketone prepared by the method can be easily dissolved in the acetone, so that use of the porphyrin compound is facilitated. The preparation method is simple, mild in reaction conditions, easy in raw material recycling, and simple and safe to operate, and accordingly a production method of novel photosensitizers is provided for photodynamic therapies.
Owner:HUNAN UNIV OF SCI & TECH
Nanotube-porphyrin molecular structure and applications of same
Owner:THE BOARD OF TRUSTEES OF THE UNIV OF ARKANSAS +1
Sensing element for nitrogen oxide molecule sensing apparatus for nitrogen oxide molecule and method for sensing nitrogen oxide molecule
ActiveUS8372650B2High sensitivityIncrease changeMaterial thermal conductivityComponent separationNitrogen oxidesPorphyrin molecule
In a sensing element for a nitrogen oxide molecule of the present invention, a sensing portion that is to be bonded to a nitrogen oxide molecule to be sensed is fixed between paired metal electrodes through connecting portions. The sensing portion is a single porphyrin molecule or a single porphyrin derivative molecule each having, as a central metal thereof, iron or cobalt. The connecting portions are each a mercaptophenyleneethynyl group bonded to the single porphyrin molecule or the single porphyrin derivative molecule. Provided are a sensing element for nitrogen oxide molecule, a sensing apparatus for nitrogen oxide molecule, and a method for sensing nitrogen oxide molecule.
Owner:PANASONIC CORP
Preparation method of porphyrin coupled silicon dioxide organic-inorganic nonlinear optical material
InactiveCN101840124BIncrease the doping concentrationMaintain structural propertiesNon-linear opticsPorphyrin moleculeSilicon dioxide
The invention discloses a preparation method of a porphyrin coupled silicon dioxide organic-inorganic nonlinear optical material, which comprises the following steps: 1. heating and reflowing a mixed solution of Msco-tetra-(4-carbomethoxyphenyl) porphyrin copper and gamma-aminopropyltriethoxysilane at the temperature of 160 to 250 DEG C for 10 to 60 hours to obtain a transparent deep red liquid; 2. dissolving a reaction product of step 1 and metal alkoxide into anhydrous ethanol, and stirring at room temperature for 1 to 2 hours; 3. dropwise adding a (H2O) / (C2H5OH) mixed liquid into the reaction product of step 2 at the room temperature for hydrolysis and polymerization reaction for 1 to 5 hours; and 4. pouring the obtained transparent sol into a glass or plastic utensil, sealing with a thin film, ageing at the room temperature for 35 to 45 days, and pricking a hole on the thin film every day to finally prepare compound dried gel. The invention has the advantages that the monomer doping concentration of porphyrin molecules in a gel solid medium can be greatly improved, and the molecular energy level structure and the spectral characteristic of the porphyrin molecules in the gel medium are kept.
Owner:NINGBO UNIV
Preparation method and application of metal ion modified MOF micro/nano structure in hydrogel
ActiveCN113522363AUniform shape and sizeAchieve recyclabilityWater/sewage treatment by irradiationWater treatment compoundsPorphyrin moleculeOrganic dye
Owner:UNIV OF SCI & TECH BEIJING
Porphyrin molecular catalysts for selective electrochemical reduction of co2 into co
ActiveUS20170067168A1High selectivityImprove catalytic performanceCellsOrganic-compounds/hydrides/coordination-complexes catalystsPorphyrinElectrochemical cell
Owner:CENT NAT DE LA RECHERCHE SCI +1
Preparation method of H-MOF-5/TCPP fluorescent composite material
ActiveCN109438456AAvoid gatheringGood water solubilityOrganic chemistryLuminescent compositionsSolubilityPorphyrin molecule
The invention discloses a preparation method of a fluorescent composite material based on MOFs / porphyrin. The method comprises the following steps: dissolving zinc nitrate, terephthalic acid, N-polyvinylpyrrolidone and lauric acid into N-N dimethylacetamide, and performing hydrothermal reaction, cooling, centrifugation, ethanol washing and vacuum drying, so as to obtain an H-MOF-5 nanosheet; dissolving the H-MOF-5 nanosheet into an ethanol solution, and performing ultrasonic mixing, so as to obtain a mixed solution; stirring, adding porphyrin into the mixed solution, ensuring that the porphyrin is completely dissolved, and continuously stirring at a room temperature, so as to obtain a mixture; performing centrifugation on the mixture, separating out a product, and performing ethanol washing and centrifugation and vacuum drying, so as to obtain an H-MOF-5 / TCPP fluorescent composite material. The method has the advantages that porphyrin molecule is loaded to the H-MOF-5 nanosheet, the aggregation of the porphyrin molecule is prevented, the water solubility and fluorescence property of the porphyrin molecule is improved, and the morphology consistency of the material before and aftercompounding is kept, so that the fluorescent composite material has an important effect in terms of fluorescence sensors.
Owner:NORTHWEST NORMAL UNIVERSITY
Metalloporphyrin/agarose freshness indicating label and preparation method thereof
PendingCN111189825ARealize the detection of acidity and alkalinityRealize detectionMaterial analysis by observing effect on chemical indicatorPorphyrin moleculeBiochemical engineering
The invention relates to the field of intelligent food packaging, and particularly relates to a metalloporphyrin / agarose freshness indicating label and a preparation method thereof. According to the freshness indicating label, agarose gel is used as a base material, the agarose gel comprises a metalloporphyrin color developing agent and a plasticizer which are uniformly dispersed in the agarose gel, the acid-base detection sensitivity of porphyrin molecules is high, and in combination with the good film-forming performance of the agarose gel, the prepared metalloporphyrin / agarose freshness indicating label can simply, rapidly and conveniently indicate the decay condition of meat products, and meanwhile the preparation method is simple, novel, low in cost, good in response performance, andhas wide application prospects.
Owner:JINGCHU UNIV OF TECH
Sensing element for nitrogen oxide molecule sensing apparatus for nitrogen oxide molecule and method for sensing nitrogen oxide molecule
ActiveUS20120184045A1Increase changeHigh sensitivityMaterial thermal conductivityComponent separationPorphyrin moleculeNitrogen oxide
In a sensing element for a nitrogen oxide molecule of the present invention, a sensing portion that is to be bonded to a nitrogen oxide molecule to be sensed is fixed between paired metal electrodes through connecting portions. The sensing portion is a single porphyrin molecule or a single porphyrin derivative molecule each having, as a central metal thereof, iron or cobalt. The connecting portions are each a mercaptophenyleneethynyl group bonded to the single porphyrin molecule or the single porphyrin derivative molecule. Provided are a sensing element for nitrogen oxide molecule, a sensing apparatus for nitrogen oxide molecule, and a method for sensing nitrogen oxide molecule.
Owner:PANASONIC CORP
Porphyrin-crown ether compound, its synthesis and application
InactiveCN102408436AImprove solubilityHigh sensitivityOrganic chemistryMaterial analysis by observing effect on chemical indicatorPorphyrin moleculeFluorescence
The invention discloses a porphyrin-crown ether compound, which comprises a metallic porphyrin molecular skeleton and a crown ether complexation unit, as well as a linker connecting the two fragments in series. The compound has a general formula of: [Metallic porphyrin]-Linker-[Crown ether], the Metallic porphyrin represents metallic porphyrin, the Crown ether represents crown ether, and the Linker is an alkyl bond or an amide bond. In the invention, a metal ion on porphyrin can coordinate with different anions and cause optical signal changes of ultraviolet and fluorescence of a porphyrin chromophore, while the crown ether undergoes complexation with a counter cation (like Na<+>, K<+>, NH4<+>, etc.), preferably with a cation matching with the crown ether in size. For anions of different stereo configurations, the size of an intramolecular hole can be controlled by adjusting the length of a linking unit so as to make the intramolecular hole matching with an anion mutually. The obtained sensor molecule can detect inorganic anions with a concentration low to 0.1ppm (like C1<->, I<->, CN<->, SCN<->, and ClO4<->, etc.) in a water phase medium. The detection technology of high sensitivity in the invention is of great significance in environment analysis, biomedicine and other aspects.
Owner:WUHAN SYNCHALLENGE UNIPHARM INC
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