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178 results about "Tetraphenylporphyrin" patented technology

Tetraphenylporphyrin, abbreviated TPP or H₂TPP, is a synthetic heterocyclic compound that resembles naturally occurring porphyrins. Porphyrins are dyes and cofactors found in hemoglobin and cytochromes and are related to chlorophyll and vitamin B₁₂. The study of naturally occurring porphyrins is complicated by their low symmetry and the presence of polar substituents. Tetraphenylporphyrin is hydrophobic, symmetrically substituted, and easily synthesized. The compound is a dark purple solid that dissolves in nonpolar organic solvents such as chloroform and benzene.

Tetraphenyl porphyrin derivative and its application in organic electroluminescent device

The invention relates to a (1) or (2) and its application in preparation of organic EL device. M is Zn or Pt; three substituent group or R1, R2, R3 are different or the same and at least one of them is alkoxy substituent carbazole derivative shown as (3); R10 and R11 are different or the same, as alkyl of C1-4 (n=4-12); the other two substituent group is H and alkoxy and alkyl (C1-C4) or alkoxy substituent carbazole derivative shown as (3). The device made by the invention has high efficiency of EL, outstanding solubility and filmibility, easy to be mixed with polymer, benefiting for research to EL device, can be used to prepare red luminous, with simple technique, benefit for industrialized batch production .
Owner:吉林吉大瑞博光电科技有限公司

Manufacturing method of graphene-porphyrin modified electrode and application of electrode

The invention relates to a manufacturing method of a graphene-porphyrin modified electrode and application of the electrode, aiming to solve the problems of complex operation, long time and relatively high price in the conventional method for detecting the content of ascorbic acid in a living body. The method comprises the following steps: I, preparing pre-oxidized graphene; II, preparing a graphene oxide solid; III, preparing acyl-chlorinated graphene; IV, preparing tetraphenylporphyrin; V, preparing 5-(4-nitro)-10,15,20-triphenyl porphyrin; VI, preparing 5-(4-amino)phenyl-10,15-20-triphenyl porphyrin; VII, preparing a pure manganese porphyrin coordination compound; VIII, preparing a functional composite material of graphene oxide and porphyrin; IX, modifying a glassy carbon electrode. The modified electrode has excellent interference resistance, stability and reproducibility, and can be taken as a biosensor for detecting ascorbic acid in practical samples.
Owner:HARBIN INST OF TECH

Amino porphyrin- poly (N-isopropylacrylamide) europium coordination compound and preparation method thereof

The invention discloses amino porphyrin-poly (N-isopropylacrylamide) europium coordination compound and a preparation method of the amino porphyrin-poly (N-isopropylacrylamide) europium coordination compound. The preparation method of the amino porphyrin- poly (N-isopropylacrylamide) europium coordination compound is characterized in that (NH2)n-TPP is prepared into an ATRP initiator which is NH2-TPP-X, wherein the X is halogen. The NH2-TPP-X is adopted to initiate NIPAM to be polymerized to obtain polymer which is (NH2)n-TPP-PNIPAM. The europium with tervalence is coordinated with the polymer (NH2)n-TPP-PNIPAM to obtain coordination compound which is (NH2)n-TPP-PNIPAM-Eu(III)-TTA through the TTA, wherein the n meets an equation that is n=1,2,3. The amino porphyrin- poly (N-isopropylacrylamide) europium coordination compound is characterized in that a short form of the amino porphyrin- poly (N-isopropylacrylamide) europium coordination compound is (NH2)n-TPP-PNIPAM-Eu(III)-TTA, wherein the TPP is tetraphenylporphyrin, wherein the shortened form of the tetraphenylporphyrin is porphyrin, the PNIPAM is the poly (N-isopropylacrylamide), the Eu(III) is the europium with the tervalence, and the TTA is alpha- thenoyltrifluoroacetone.
Owner:CHANGCHUN UNIV OF SCI & TECH

Novel water-soluble polymer capable of selectively recognizing mercury ion as well as preparation method and application thereof

The invention discloses a novel water-soluble polymer capable of selectively recognizing mercury ion; the structural formula of the novel water-soluble polymer is as shown in the specification, wherein R1 is hydrogen or alkyl; R2 is hydrogen, alkyl or hydroxyalkyl; the molecular weight is 1.6*10<4> to 5.5*10<6> g / mol; and the ratio of m to n is (100-200):1. The invention further discloses a synthetic method of the polymer. The novel water-soluble polymer is prepared by copolymerizing a tetraphenyl porphyrin monomer AOTPP and an acrylamide monomer through radical polymerization reaction. The invention further discloses application of the polymer. The polymer is capable of highly selectively detecting mercury ion in aqueous solution through a common ultraviolet-visible absorptionspectromtry and a steady-state fluorescence emission spectrometry.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI

Ultrathin fireproofing and flame-retardant double faced adhesive tape

The invention provides an ultrathin fireproofing and flame-retardant double faced adhesive tape. The double faced adhesive tape comprises a base film layer, wherein flame-retardant layers are arrangedon two surfaces of the base film layer respectively, and adhesive layers are arranged on the surfaces, opposite to the base film layer, of the two flame-retardant layers. The double faced adhesive tape is characterized in that a flame retardant is arranged in the flame-retardant layers and the adhesive layers and contains ammonium dihydrogen phosphate and meso-tetraphenylporphyrin. The ultrathinfireproofing and flame-retardant double faced adhesive tape is applicable to the adhesion of parts of electronic products, particularly batteries and the like of intelligent mobile phones; by utilizing a dual fireproofing and flame-retardant technique, the fireproofing and flame-retardant effects are good; and the double faced adhesive tape is light and thin and has good applicability.
Owner:SHENZHEN LICHANGSHI ADHESIVE PROD

Down washing and finishing agent and preparation method thereof

The invention provides a down washing and finishing agent which is characterized by being prepared from the following raw materials in parts by weight: 1-1.2 parts of tea saponin, 1-1.2 parts of sodium citrate, 2-2.4 parts of sodium dodecyl benzene sulfonate, 2-3 parts of ethyl acetate, 3-4 parts of ethylene glycol, 1.2-1.5 parts of tert-butyl hydroperoxide, 3-3.5 parts of morpholine, 1-1.2 parts of ning-emulsifier 31#, 1-1.2 parts of polyoxyethylene oleate, 2-3 parts of silane coupling agent KH-572, 1-2 parts of anti-aging agent TPPD (Tetraphenylporphyrin Dichloride), 2-3 parts of sodium bicarbonate, 3-4 parts of softening agent and 200 parts of water. The down washing and finishing agent is capable of effectively removing dirt on down, recovering the original elasticity and bulkiness of the down and keeping the original warmth retention property, strong in sterilizing effect and better in conditioning and nursing effects for the down.
Owner:六安皖智知识产权运营有限公司

Funtionalized carbon nanotube modified electrode and its preparation method and uses

The invention provides a funtionalized carbon nanotube modified electrode which is prepared through following steps: first the carbon nanotube modified electrode is prepared, then the carbon nanotube modified electrode is placed in the acetonitrile solution containing supporting electrolyte and tetraphenylporphyrin; electropolymerization is performed by using the carbon nanotube modified electrode as a work electrode to acquire a functionalized carbon nanotube modification electrode. The invention also provides a preparation method of the functionalized carbon nanotube modified electrode and uses of the electrode in detecting and separating resorcinol isomer. In the invention, resorcinol isomer can be quickly separated and simultaneously quantitatively detected; the method of the invention is simple and quick, highly sensitive and can be used for detecting trace amount of resorcinol isomer.
Owner:NORTHWEST NORMAL UNIVERSITY

Polyporphyrin/nanogold modified glassy carbon electrode as well as preparation method and application thereof

The invention discloses a polyporphyrin / nanogold modified glassy carbon electrode as well as a preparation method and application thereof. The polyporphyrin / nanogold modified glassy carbon electrode comprises a glassy carbon electrode, wherein nanogold particles are deposited on the surface of the glassy carbon electrode, and the surface of the glassy carbon electrode is coated with a polymerized tetraphenylporphyrin film layer. The preparation method comprises the following steps: 1, synthesizing and preparing a tetraphenylporphyrin solution; 2, preparing a chloroauric acid solution; 3, preparing a nanogold modified glassy carbon electrode; 4, preparing the polyporphyrin / nanogold modified glassy carbon electrode; 5, airing the electrode at the room temperature. The electrode can be applied to detection of a trace amount of lead ions. The electrode has the advantages that the electrode is high in detection sensitivity, good in repeatability, wide in linear range and low in detection limit in a process of detecting lead ions.
Owner:CHONGQING UNIV

Intramolecular C-H amination with sulfonyl azides

Cobalt (II) complexes of porphyrins are effective catalysts for intramolecular nitrene insertion of C—H bonds with arylsulfonyl azides. The cobalt-catalyzed process can proceed efficiently under mild and neutral conditions in low catalyst loading without the need of other reagents or additives, generating nitrogen gas as the only byproduct. Using the simple tetraphenylporphyrin (TPP) as the ligand, the cobalt-catalyzed intramolecular amidation can be applied to primary, secondary, and tertiary C—H bonds and suitable for a broad range of arylsulfonyl azides, leading to the syntheses of various benzosultam derivatives in excellent yields
Owner:UNIV OF SOUTH FLORIDA

Porphyrin Based neuton capture agents for cancer therapy

The invention describes the synthesis of a panel of novel carbon-carbon linked carboranyl-containing 5,10,15,20-tetraphenylporphyrins bearing 25–44% boron by weight. In certain embodiments, a phenyl porphyrin compound has a carboranyl group attached to the phenyl group by a carbon-carbon linkage, wherein the phenyl group corresponds to the following formulawhere R7 through R11 are hydrogen, a carboranyl group, or are selected from the group consisting of hydroxyl, NMe3+, PMePh2+, PO(OH)2, SO3H, COOH, and NH2. In this embodiment, the carboranyl group is attached to the phenyl group by a carbon-carbon linkage, either one or two of R7 through R11 are other than hydrogen; and the phenyl porphyrin compound contains at least one phenyl group having at least one of said carboranyl groups.
Owner:RGT UNIV OF CALIFORNIA

Symmetric and Asymmetric Halogen-Containing Metallocarboranylporphyrins and Uses Thereof

The present invention is directed to low toxicity boronated compounds and methods for their use in the treatment, visualization, and diagnosis of tumors. More specifically, the present invention is directed to low toxicity halogenated, carborane-containing 5,10,15,20-tetraphenylporphyrin compounds and methods for their use particularly in boron neutron capture therapy (BNCT) and photodynamic therapy (PDT) for the treatment of tumors of the brain, head and neck, and surrounding tissue. The invention is also directed to using these halogenated, carborane-containing tetraphenylporphyrin compounds in methods of tumor imaging and / or diagnosis such as MRI, SPECT, or PET.
Owner:BROOKHAVEN SCI ASSOCS

Preparation of silica gel supported metalloporphyrin compound and application method thereof

The invention belongs to the technical field of supported metalloporphyrins, and in particular relates to preparation of a silica gel supported metalloporphyrin compound and an application method thereof so as to solve the problems of preparing the metalloporphyrin compound in the prior art. The preparation steps are that: tetraphenylporphyrin, Lewis acid and trichloromethane are added with a chloromethylation reagent dropwise for thermostatic reaction, and chloromethylation tetraphenylporphyrin is obtained after treatment; the chloromethylation tetraphenylporphyrin is dissolved into DMF, the mixture is added with silica gel for temperature reaction, and the silica gel supported porphyrin is obtained after treatment; and the silica gel supported porphyrin is dissolved into the DMF, the mixture is subjected to temperature rise and added with metal salt or oxide for reaction, and the silica gel supported metalloporphyrin compound is obtained after treatment. The application method comprises that: phenylethane and the silica gel supported metalloporphyrin compound are introduced with O2 for the temperature reaction, and a main product hypnone is obtained after treatment. The invention has the advantages that: the reaction is easier, and the supported degree of the porphyrin is high; and in the application, the activity of a catalyst is effectively protected, the activities of the catalyst are promoted, and the yield and the selectivity of the main product are improved.
Owner:ZHONGBEI UNIV

Carboranylporphyrins and uses thereof

The present invention is directed to low toxicity boronated compounds and methods for their use in the treatment, visualization, and diagnosis of tumors. More specifically, the present invention is directed to low toxicity carborane-containing 5, 10, 15, 20-tetraphenylporphyrin compounds and methods for their use particularly in boron neutron capture therapy (BNCT) and photodynamic therapy (PDT) for the treatment of tumors of the brain, head and neck, and surrounding tissue. The invention is also directed to using these carborane-containing tetraphenyl porphyrin compounds to methods of tumor imaging and / or diagnosis such as MRI, SPECT, or PET.
Owner:BROOKHAVEN SCI ASSOCS

Radiation enhancement agent for X-ray radiation therapy and boron neutron-capture therapy

Low toxicity halogenated carborane-containing tetraphenylporphyrin compounds and methods for their use particularly in boron neutron capture therapy (BNCT), X-ray radiation therapy (XRT) and photodynamic therapy (PDT) for the treatment of tumors of the brain, head and neck, and surrounding tissue. The invention also includes methods of tumor imaging and / or diagnosis such as MRI, SPECT, or PET using these halogenated carborane-containing tetraphenylporphyrin compounds.
Owner:BROOKHAVEN SCI ASSOCS

Amino-modified tetraphenylporphyrin compound as well as preparation method and application thereof

The invention relates to an amino-modified tetraphenylporphyrin compound as well as a preparation method and application thereof. The compound has a structure (I) shown in the description, wherein R2 and R3 are positioned at an ortho-position (o-) or meta-position (m-) or para-position (p-) of a benzene ring. The invention relates to the fields of photosensitive medicaments (also known as photosensitizers or photodynamic medicaments) and photodynamic therapy, in particular to a porphyrin photosensitizer, a preparation method thereof and application of the porphyrin photosensitizer in the field of medicine. The photosensitive medicament disclosed by the invention has the advantages of stable chemical property, single component and very strong photodynamic activity, and can be applied to photodynamic therapy of diseases such as tumors, retinal macular degeneration, actinic keratosis, port wine stains and condyloma acuminata.
Owner:陈志龙

Preparation method and application method of cobalt-tellurium diatomic site catalyst

The invention relates to a preparation method and an application method of a cobalt-tellurium diatomic site catalyst. The method comprises the following steps: preparing the catalyst by adopting a space confinement-etching-pyrolysis strategy, and comprises the following three steps: (1) packaging and anchoring a Te precursor by using a molecular pore channel of a metal organic framework material (ZIF-8) as a cage so as to realize uniform space distribution of the Te precursor; (2) performing etching and ion exchange on the frame material by using a metal precursor to realize atomic dispersionof the metal precursor; (3) treating and removing the ligand by using a high-temperature pyrolysis method, carbonizing, stabilizing Co and Te atoms by using a derived carbon-nitrogen framework material, and preventing the Co and Te atoms from migration and agglomeration so as to realize the synthesis of the Co / Te diatomic site catalyst, wherein the precursor is Te powder and cobalt acetylacetonate / cobalt tetraphenylporphyrin / vitamin B12 / cobalt nitrate. The method is simple in process, the preparation method is simple, conditions are mild, the obtained Co / Te diatomic site catalyst has a rich micro / mesoporous structure, the specific surface area is larger than 1000 m < 2 > / g, active sites are in atomic dispersion, excellent electro-catalytic hydrogen production and oxygen reduction performance can be shown, and the cobalt-tellurium diatomic site catalyst can be used as an efficient electrolysis (sea) water and metal-air battery catalyst.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Synthetic process and special equipment for substituted bis [tetraphenylporphinatoiron]

The invention discloses a synthetic process and special equipment for substituted bis [tetraphenylporphinatoiron]. An organic solvent as well as materials comprising substituted tetraphenylporphine and ferric are added in a metallic reactor for heating and refluxing for 0.2-0.5h under the condition of inputting 1 atm of air to synthesize substituted tetraphenylporphyrins; then solid NaOH is added into the same reactor for continuously reacting for 0.5-2h to implement dimerization on the substituted tetraphenylporphyrins, and pure substituted bis [tetraphenylporphinatoiron] is obtained through crystallization and purification. The synthetic yield of the substituted bis [tetraphenylporphinatoiron] is more than 95 percent and the recovery rate of the organic solvent is more than 95 percent.
Owner:YUANJIANG HUALONG CATALYST TECH

Polymeric compound, oxygen permeable membrane, oxygen permeable composite, electrochemical device

A polymeric compound having a backbone structure including an addition product of a (meth)acrylate compound and a nucleophile of a cobalt porphyrin complex including a tetraphenylporphyrin derivative represented by Formula 1 coordinated to a cobalt metal,wherein substituents R1 to R4 are as described in the specification,an oxygen permeable membrane including the polymeric compound, and an electrochemical device including the oxygen permeable membrane.
Owner:SAMSUNG ELECTRONICS CO LTD +1

Method for detecting micro-trace amount methyl-phosphoric acid dimethyl ester

A method for trace detection of dimethyl methyl phosphate, relates to method using spectral sensor to detect organophosphor substances. The invention takes market flour, sulfo-tetraphenylporphyrin (TPPS) as raw materials; prepare the plant enzyme solution, TPPS solution, then first add TPPS solution, plant enzyme solution and phosphate buffer solution into the reaction tank of the liquid phase spectral detection device to form the TPPS-plant esterase complex solution, then add the measured sample liquid, measure and record the absorption spectrum before and after adding the sample liquid, whether the sample contains DMMP can be judged by comprising the differences of the two absorption spectrum. As the method by this invention has the characteristics of low detection cost, simple to operate, can effectively real-time detect on-site, detection limit can be as low as 10 ppt and so on, therefore, the invention can be widely used for trace residue detection of dimethyl methyl phosphate in vegetables, fruits and other agricultural products and environment.
Owner:CHONGQING UNIV

Preparation method of carbon nanotube/paraffin microcapsule with light absorption performance

The invention relates to a preparation method of a carbon nanotube / paraffin microcapsule with light absorption performance. The preparation method comprises the following steps: first acidifying and grafting a carbon nanotube to obtain a polyhydroxy carbon nanotube; nitrifying and reducing tetraphenylporphyrin to obtain amino porphyrin; secondly, placing the polyhydroxy carbon nanotube in a round-bottom flask with distilled water, ultrasonically dispersing, and adding melamine, urea and a formaldehyde solution into the system to prepare a prepolymer; then adding the amino porphyrin into molten paraffin, ultrasonically dispersing, adding an emulsifier and distilled water, and preparing an emulsion; and finally mixing the prepolymer, the emulsion, sodium chloride, glacial acetic acid and a curing agent, and reacting to obtain the microcapsule. The phase change potential heat is increased, and the carbon nanotube is uniformly dispersed in the compound paraffin to increase the heat conductivity, so that the stability of the emulsion is improved; the heat conducting performance of a wall material is improved, and the heat storage and release efficiency of the microcapsule is improved; and meanwhile, the microcapsule has an obvious absorption peak in a visible light zone, and has a photosensitive property.
Owner:LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY

In-situ self-assembly preparation method of ZnTPP (zinc tetraphenylporphyrin)/ZnO composite membrane nanomaterial

The invention discloses an in-situ self-assembly preparation method of a ZnTPP (zinc tetraphenylporphyrin) / ZnO composite membrane nanomaterial. The method comprises the following steps: 1) synthesizing a nest-like ZnO membrane nanomaterial on ITO conducting glass; 2) synthesizing H2TPP (tetraphenylporphyrin); 3) dissolving H2TPP in a trichloromethane solvent; 4) impregnating the ZnO membrane nanomaterial attached to the ITO conducting glass in the H2TPP solution to realize uniform spin coating adhesion immediately; 5) calcining the ITO conducting glass in a tube furnace. During preparation, ZnTPP is formed through in-situ self-assembly on ZnO surface, the obtained organic matter and inorganic matter composite is clean in interface and good in chemical bonding and stability, the visible light absorption spectrum of the composite is broadened, separation efficiency of photogenerated charges is increased, photocatalytic degradation efficiency is increased substantially, and the composite shows hydrophobicity and obvious organic dye selectivity.
Owner:FUZHOU UNIV

Facile Synthesis of Metalloporphyrin Polymers

InactiveUS20150005463A1Improve light absorption characteristicsEnhanced light absorptionDiacetyleneZinc
A method is provided for synthesizing a metal (M) meso-tetraphenylporphyrin polymer. The method begins with the provision of a free-base (H2)-meso-tetra-4-(trialkylsilyl)ethynylphenylporphyrin (H2-tetra-C≡C-TriAS-TPP) including a trialkylsilyl (TriAS) moiety attached to an ethynyl termini. In response to a reaction with a metal (M)-containing material, the H2-tetra-C≡C-TriAS-TPP is converted to a metal (M)-tetra-4-(trialkylsilyl)ethynylphenylporphyrin (M-tetra-C≡C-TriAS-TPP). Then, the M-tetra-C≡C-TriAS-TPP is converted to a M-tetra-4-ethynylphenylporphyrin (M-tetra-C≡C-TPP) monomer by removing the trialkylsilyl (TriAS) moiety from the ethynyl termini. Finally, a plurality of M-tetra-C≡C-TPP monomers are coupled together to supply a metal (M)-meso-tetraphenylporphyrin polymer (M-poly-meso-TPP), whereby meso-phenyl groups of adjacent M-tetra-C≡C-TPP monomers in the M-poly-meso-TPP are connected through a butadiyne linking moiety. In one aspect, the metal is zinc.
Owner:SHARP KK

Photosensitive medicinal preparation containing amino poly-carboxylic acid modification tetraphenylporphyrin compound and purpose thereof

The invention discloses a photosensitive medicinal preparation containing amino poly-carboxylic acid modification tetraphenylporphyrin compound. Each unit dose contains 1mg-100mg of the amino poly-carboxylic acid modification tetraphenylporphyrin compound. The each unit dosage is the total amount of the medicinal preparation used everyday. The amino poly-carboxylic acid modification tetraphenylporphyrin compound can be used in combination with other medicine or is singly used. Through addition of a drug carrier which is acceptable in pharmacy, the amino poly-carboxylic acid modification tetraphenylporphyrin compound accounts for 0.5%-40% the total weight of the medicinal preparation and can be prepared to any dosage form accepted clinically. The invention further provides application of the medicinal preparation on preparation of photosensitive antitumor drug and in the near infrared fluorescence imaging filed. The photosensitive medicinal preparation containing the amino poly-carboxylic acid modification tetraphenylporphyrin compound is low in toxicity, convenient to apply, wide in tumor suppression spectrum, good in tumor control rate, good in effect of malignant tumor treatment through photodynamic therapy, high in fluorescence quantum yield and optical stability in a near-infrared area, good in biocompatibility, capable of having a certain ability of penetrating the biological barrier, and wide in application prospect in the near infrared fluorescence imaging field.
Owner:INST OF BIOMEDICAL ENG CHINESE ACAD OF MEDICAL SCI

Inclusion compound of porphyrin metal complex and albumin

A novel inclusion compound obtained by including in albumin a tetraphenylporphyrin metal complex represented by the following chemical formula (1) and having 2-position side chains: where R1 is a cyclohexyl group or the like; R2 represents a substituent; M represents a transition metal atom or metal ion belonging to Groups 6 to 10 of the periodic table; X− represents a halogen ion; and the number of X− is obtained by subtracting 2 from a valence of the metal ion.
Owner:NIPRO CORP

Preparation method of fullerene/tetraphenylferriporphyrin self-assembled structure oxygen reduction electrocatalyst

The invention relates to a preparation method of a fullerene / tetraphenyl ferriporphyrin self-assembled structure oxygen reduction electrocatalyst. The preparation method comprises the following steps: carrying out condensation reflux on tetraphenyl porphyrin, iron nitrate nonahydrate and a DMF solvent, and carrying out vacuum drying to obtain tetraphenyl ferriporphyrin; preparing a fullerene toluene solution, mixing the fullerene toluene solution with the isopropyl alcohol suspension of tetraphenyl ferriporphyrin, performing standing, carrying out suction filtration, washing, and carrying out vacuum drying to obtain a sample with a self-assembly structure; taking a self-assembled sample and flatly spreading in a magnetic boat, putting the magnetic boat into a quartz tube protected by hydrogen and argon mixed gas, performing a heat preservation reaction at the temperature of 600-800 DEG C, performing natural cooling to the room temperature, and obtaining the fullerene / tetraphenylferriporphyrin self-assembled structure oxygen reduction electrocatalyst. The process for preparing the C60 / FeTPP self-assembly structure through a liquid-liquid interface precipitation method is mature, simple to operate, low in production cost and easy for industrial production. A donor-acceptor system with charge transfer can be effectively constructed, and the half-wave potential of the donor-acceptor system can reach 0.86 V (vs.RHE).
Owner:SHAANXI UNIV OF SCI & TECH

Organic multi-component carrier lead ion selective electrode and preparation method thereof

The invention discloses an organic multi-component carrier lead ion selective electrode and a preparation method thereof. The organic multi-component carrier lead ion selective electrode comprises a selective film, a polrvinyl chloride pipe, an Ag / AgCl internal reference electrode, internal filled liquid and an electrode lead. The preparation method is characterized by comprising the following steps of: sufficiently mixing macrocyclic compounds such as calixarene, tetraphenylporphyrin and 18-crown ether-6 and organic matters containing soft active atoms (O, S, P), such as triphenylphosphine and dimethyl sulfide, to prepare a physical blending carrier; and dissolving the blending carrier, polrvinyl chloride powder, dibutyl phthalate and sodium tetraphenylborate into tetrahydrofuran, and carrying out ultrasonic dispersion to obtain a lead ion selective film. The purpose of carrier modification is achieved through physical mixing, so that the property of the lead ion selective electrode is extremely high, and the carrier is avoided being subjected to chemical modification with a complicated chemical synthesis process and a large quantity of organic reagents. The organic multi-component carrier lead ion selective electrode has the advantages of simple manufacturing, Nernst response, good selectivity and high stability and can be used for quickly and accurately detecting lead ions in a solution.
Owner:BENGBU COLLEGE

Proton exchange membrane applied to direct methanol fuel cell and preparation method thereof

The invention discloses a proton exchange membrane applied to a direct methanol fuel cell and a preparation method thereof. The method comprises steps of adding porphyrin compound into a Nafion resin solution according to the mass ratio of porphyrin compound to Nafion resin to be 5-50:1000, wherein the porphyrin compound comprises tetraphenyl porphyrin, tetra-sulpho-phenyl porphyrin and tetra-amino-phenyl porphyrin; and carrying out membrane methods such as casting method, pasting method and gumming method on the Nafion resin solution of the porphyrin compound to prepare the modified proton exchange membrane. In the invention, molecules of porphyrin compound, which are not penetrated through methanol and conduct ions are embedded or bonded into the ion channel of a nafion membrane of a perfluorosulfonic membrane by physical or chemical methods to form a structure of hydrogen ion sieve, thereby maintaining higher protons conduction ability and reducing the methanol through rate greatly.
Owner:SOUTH CHINA UNIV OF TECH

Beta-(2,3-dihydro-naphthyl[1,2,e]-m-oxazinyl) tetraphenylporphyrin, and preparation method and application thereof

The invention discloses beta-(2,3-dihydro-naphthyl[1,2,e]-m-oxazinyl)tetraphenylporphyrin of which the structural general formula is disclosed as Formula (I) or Formula (II), and a preparation method and application thereof. The preparation method comprises the following steps: 1) preparing 5,10,15,20-tetraphenyl porphyrin from pyrrole and benzaldehyde, carrying out coordination with copper to obtain 5,10,15,20-tetraphenyl copper porphyrins, carrying out regioselective nitration to obtain beta-nitro-substituted-5,10,15,20-tetraphenyl copper porphyrins, carrying out decoppering and reduction to obtain beta-amino-substituted-5,10,15,20-tetraphenyl porphyrins, and reacting with acetate to obtain beta-amino-substituted-tetraphenyl metalloporphyrins (beta-NH2-MTPP); 2) carrying out condensation reaction on the beta-NH2-MTPP, formaldehyde and 2-naphthol, separating the product by column chromatography to obtain a beta-(2,3-dihydro-1H-naphthyl[1,2,e]-m-oxazinyl)-substituted tetraphenyl porphyrin metal complex; and decoppering to obtain the beta-(2,3-dihydro-naphthyl[1,2,e]-m-oxazinyl)tetraphenylporphyrin. The compounds can be used for preparing photodynamic-therapy photosensitizers and antineoplastic drugs with small toxic and side effects and high activity.
Owner:WUHAN INSTITUTE OF TECHNOLOGY

Two-dimensional metal-organic framework structure nano-sheet, preparation method and applications thereof

The invention discloses a two-dimensional metal-organic framework structure nano-sheet, a preparation method and applications thereof. The preparation method comprises the following steps: providing amixed solution containing tetraphenylporphyrin, gadolinium metal ions, an organic solvent and water, adjusting the ratio of the organic solvent to the water in the mixed solution, and carrying out asolvothermal reaction to obtain a two-dimensional metal-organic framework structure nano-sheet with uniform size distribution; and carrying out hydrogen protonation treatment on the nano-sheet to obtain the protonated nano-sheet with the two-dimensional metal-organic framework structure. According to the invention, the obtained two-dimensional metal-organic framework structure nano-sheet can be used for magnetic resonance imaging analysis or photodynamic therapy of tumors; and the nano-sheet with uniform size distribution is obtained by adjusting the proportion of the mixed solution and carrying out solvothermal treatment, and the ultraviolet and visible absorption intensity and the ultraviolet and visible absorption intensity range of the nano-sheet are improved through hydrogen protonation treatment, so that the nano-sheet generates sensitive magnetic resonance imaging and photodynamic treatment effects on tumors.
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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