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81 results about "Selenium Compound" patented technology

Any inorganic compound containing selenium, including sodium selenite, sodium selenate, selenium sulfides, selenic acid, selenium dioxide and hydrogen selenide. Selenium is an essential component of selenoproteins that are important antioxidant enzymes.

Method for preparing small-particle-size red nano selenium particles and application of small-particle-size red nano selenium particles

The invention relates to a method for preparing small-particle-size red nano-selenium particles and application of the small-particle-size red nano-selenium particles, and belongs to the technical field of selenium compounds. The nano-selenium particles contain nano-selenium and a lipoic acid oligomer. The preparation method comprises the following steps: respectively preparing nano-selenium and a lipoic acid oligomer, and uniformly mixing the nano-selenium and the lipoic acid oligomer to obtain the nano-selenium particles. The nano-selenium particles have good stability; the content of total protein and fat in highland barley grains to which the nano-selenium particles are applied is remarkably increased through detection, the nano-selenium particles become an effective means for selenium enrichment of crops, the nano-selenium particles are well applied to selenium-enriched planting of highland barley, and the application of the nano-selenium particles to the highland barley grains is developed by combining development of new selenium-enriched crop varieties and research of a new selenium fertilizer application technology. And a powerful promotion effect is achieved on the development of selenium-enriched ecological agriculture.
Owner:CHENGDU UNIV

A method for determining the IC50 value of cytotoxicity of selenium compounds to cancer cells based on gene expression

The present invention relates to a method for determining the IC50 value of the toxicity of a selenium compound to cancer cells based on gene expression. Specifically, the method comprises the steps of: (1) performing dimensionality reduction processing on cancer cell gene expression data using an FCBF algorithm to obtain a cancer cell gene expression dataset F' after dimensionality reduction; (2) dividing the cancer cell gene expression dataset F' after dimensionality reduction obtained in step (1) into an F' training sample subset and an F' test sample subset; (3) performing a Gauss-Newton iterative algorithm on the F' training sample subset and the IC50 values ​​of the toxicity of selenium compounds to different cancer cells to obtain a determination model for determining the IC50 value of the toxicity of selenium compounds to cancer cells based on cancer cell gene expression; using the determination model, determining the IC50 value of the toxicity of selenium compounds to cancer cells according to the gene expression of cancer cells. The method of the present invention can quickly and accurately determine the IC50 value of the toxicity of selenium compounds to cancer cells based on gene expression data.
Owner:INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI

A selenium heterojunction catalyst coupled to hydrogen evolution, methods, and applications in electrocatalysis of 5-hydroxymethylfurfural

The application belongs to the technical fields of functional material preparation, catalysis and transition metal complex material, and discloses a selenium compound heterojunction catalyst coupled with hydrogen evolution, a method and application. In preparation, a cobalt source, urea, a foamed nickel and an ammonium fluoride mixed solution are mixed in a reaction, and after being hydrothermally synthesized and cooled to room temperature, the precursor Co(OH)2 / NF is obtained by washing with ethanol and water and drying. Then, selenium powder and a strong base are added into a reaction kettle, and heating is performed to obtain the heterojunction catalyst NiSe@CoSe2 / NF with high density. The obtained heterojunction material can be used for electrocatalysis of 5-hydroxymethylfurfural. When the current density is 10 mAcm ‑2 , the potential is 1.29 V, and the optimal conversion rate is more than 98%, and the catalyst has excellent catalytic activity for electrocatalysis of 5-hydroxymethylfurfural oxidation.
Owner:TIANJIN UNIV +3

High-selenium compound powder for postoperative and radiotherapy and chemotherapy rehabilitation immune repair and preparation method thereof

PendingCN122642570AFormularyOrgan damage
The application provides a preparation method of high-selenium compound powder for postoperative and radiotherapy rehabilitation immune repair, and belongs to the technical field of functional food or special medical use formula food processing technology.The application realizes sufficient wall breaking by respectively pre-wetting and low-temperature complex enzymolysis of hard plant wall and fungal wall raw materials, and then prevents active loss by using endogenous substances of the raw materials for in-situ anchoring without adding, after drying and crushing, adding postbiotic powder, active peptide, whey protein, yeast beta-glucan, EGCG and other heat-sensitive components into low-temperature sterile dry mixing, while maximizing the release of organic selenium and immune active substances, the heat-sensitive functional components are completely protected from degradation and inactivation, and finally the technical target of sufficient wall breaking, complete activity and stable immune repair effect is achieved.The product prepared by the application can improve the immune organ damage and immune homeostasis imbalance caused by radiotherapy, and is suitable for the immune repair of postoperative and radiotherapy rehabilitation population.
Owner:TIANJIN GUIZHITANG SCI & TECH CO LTD

Nanoselenium compound with liver fibrosis prevention and treatment integration function and preparation and application thereof

The application belongs to the technical field of biological medicine, and particularly relates to a nano selenium compound with liver fibrosis prevention and treatment integration function and a preparation and application thereof. The preparation method is as follows: bovine serum albumin is mixed with sodium selenite, and under the reduction of glutathione, elemental selenium is generated, BSA-Se is obtained through dialysis ultrafiltration, and then the BSA-Se is reacted with dopamine hydrochloride in a Tris-HCl buffer solution in the dark to obtain a nano drug BSA-Se@PDA (BSP). The synthesis method is simple in process, convenient in operation and good in repeatability; the BSP is high in stability, good in biocompatibility, can effectively eliminate active oxygen, inhibit the activation of liver stellate cells, and thus significantly relieve liver fibrosis; meanwhile, the BSP also shows good protection in alcoholic liver injury in the fibrosis stage, realizes the dual treatment effects of'source intervention' and 'pathological process regulation' of liver fibrosis, and provides a new nano preparation and intervention strategy for the treatment of alcoholic liver disease and liver fibrosis.
Owner:SHANDONG FIRST MEDICAL UNIV & SHANDONG ACADEMY OF MEDICAL SCI

Optimized formula of plant organic nano-selenium for activating immune system, inhibiting cancer cell proliferation, preventing cancers, preventing tumors, resisting oxidation and resisting aging

The invention discloses an optimized formula of plant organic nano-selenium for activating an immune system, inhibiting cancer cell proliferation, preventing cancers, preventing tumors, resisting oxidation and resisting aging, and belongs to the technical field of functional food formulas. According to the formula, selenium-enriched yeast and dl-alpha-tocopheryl acetate are used as main materials, L-ascorbic acid can be selectively added, auxiliary materials such as microcrystalline cellulose and starch sodium octenylsuccinate are matched to prepare a capsule preparation, and the content of functional components in a single preparation is precisely controlled as follows: 90-100 micrograms of selenium and 40-50 mg of vitamin E, or 90-100 micrograms of selenium, 40-50 mg of vitamin E and 40 mg of vitamin C. According to the invention, synergistic interaction is realized through scientific proportioning of functional components, a fat-soluble and water-soluble dual anti-oxidation system is constructed, an organism immune system can be effectively activated, cancer cell proliferation can be inhibited, and meanwhile, the composition has multiple effects of preventing cancers, preventing tumors, resisting oxidation and resisting aging; the preparation method is simple and convenient in process, easy in parameter control and suitable for industrial large-scale production, the prepared preparation is high in active ingredient stability, excellent in bioavailability, high in safety and capable of being widely applied to preparation of related functional foods, and all raw materials are food-grade. The technical problems that an existing selenium compound formula is unreasonable in proportion, poor in efficacy synergy and poor in preparation performance are solved.
Owner:SHANDONG YUPIN TIANDAN MARINE BIOTECHNOLOGY CO LTD

Sulfur or selenium-containing compound derivatives and their pharmaceutical use

Provided herein are novel sulfur or selenium-containing compound, compositions containing the compounds, and preparation methods and uses thereof. The sulfur or selenium-containing compounds are compounds represented by Formulae (I) to (II), or tautomers, stereoisomers, prodrugs, crystal forms, isotopically labeled forms, pharmaceutically acceptable salts, hydrates or solvates thereof. The compounds and compositions of the present disclosure can be used to treat diseases or disorders mediated by po1θ, in particular, cancer. (I) (II)
Owner:AVELOS THERAPEUTICS INC

Layered Cu2Se material and preparation method and application thereof

The invention belongs to the field of selenium compounds, and particularly relates to a layered Cu2Se material and a preparation method and application thereof. The layered Cu2Se material comprises two layers of selenium and a Se-Cu-Se repeating layer unit formed by copper located between the two layers of selenium, wherein the atomic ratio of Cu to Se in the Se-Cu-Se repeating layer unit is 2: 1; and the Se-Cu-Se repeating layer units are repeatedly arranged in the thickness direction. According to the layered Cu2Se material, Se-Cu-Se is taken as a repeated layer unit, and layers are combined together by Van der Waals force, so that a layered quasi-two-dimensional structure with crystal preferred orientation is formed. The lamellar quasi-two-dimensional structure is relatively low in stripping energy and is about easy to strip, and Se becomes unstable after stripping, so that two-dimensional copper can be prepared.
Owner:INST OF MATERIALS HENAN ACAD OF SCI +1

Preparation method of selenium-rich strontium amino acid chelate feed

This invention relates to the field of feed, specifically disclosing a method for preparing selenium- and strontium-enriched amino acid chelated feed; including the preparation of selenium / strontium-enriched amino acid fermentation products, the preparation steps of which are as follows: S1: Inoculating activated microalgae and yeast strains into a culture medium supplemented with selenium and strontium compounds, the pH of the culture medium is 6.5-7.5, the culture temperature is 25-35℃, and the culture is carried out under light and aeration conditions for 5-7 days; S2: Collecting selenium / strontium-enriched algal biomass using a flocculant, and ultrasonically treating the selenium / strontium-enriched algal biomass for 10-20 minutes, then adding soybean meal and rapeseed cake to the selenium / strontium-enriched algal biomass and stirring; S3: Adding cellulase, papain, alkaline protease, and pectinase for enzymatic hydrolysis to obtain selenium / strontium-enriched amino acid fermentation products. The selenium- and strontium-enriched amino acid chelated feed and its preparation method of this invention can improve the intestinal health of animals, increase the absorption and utilization rate of nutrients, and enhance animal immunity.
Owner:海南朗研光电有限公司 +9

Preparation method and application of vitamin E hydrogel with oxidation-reduction characteristic

The invention discloses a preparation method and application of vitamin E hydrogel with an oxidation-reduction characteristic. The vitamin E hydrogel with the oxidation-reduction characteristic is prepared from the following components in percentage by weight: 10.0 to 30.0 percent of TPGS-SH, 0 to 10.0 percent of TPGS-SeSe-TPGS and 60 to 90.0 percent of solvent. Redox dynamic response regulation and control of the hydrogel are achieved through molecular structure design, in an oxidation environment, sulfydryl in TPGS-SH molecules is subjected to a bimolecular oxidation reaction to form a disulfide bond cross-linked dimer, a selenium-containing compound TPGS-SeSe-TPGS is introduced to cooperate with a catalytic oxidation process, the gelation rate is remarkably increased, and in a physiological reduction environment, the selenium-containing compound TPGS-SeSe-TPGS can be used for preparing the hydrogel. The disulfide bond can be reduced and broken by glutathione and other reducing agents, so that the controllable degradation of the gel network is realized. In-vitro experiments show that the hydrogel can maintain the structural stability for more than 100 hours in simulated body fluid, and can be completely degraded within 84 hours under the condition of 10mM glutathione. According to the invention, an intelligent gel system with vitamin E biological activity and redox dynamic response is constructed for the first time, and a potential treatment platform is provided for local administration of oxidative stress related diseases.
Owner:HANGZHOU NORMAL UNIVERSITY

Synthetic method for constructing beta-amino-organic selenium compound through copper catalysis

PendingCN121135618AOrganic chemistryCarbenium ionPtru catalyst
The invention belongs to the field of organic synthesis, and particularly relates to a synthesis method for constructing a beta-amino-organic selenium compound through copper catalysis. The structural formula of the compound is shown as a general formula X, and the compound with the general formula X is prepared from aryl olefin, aryl selenide, a copper catalyst, an oxidizing agent and a solvent through a one-pot method. Research finds that under the action of an oxidizing agent, aryl selenide is oxidized into selenium positive ions by the oxidizing agent, then aryl olefin is attacked to form a carbocation intermediate, then nitrile nucleophilic attacks carbocation under the catalysis of copper, and then the target beta-amino-organic selenium compound is formed. The synthesis method is low in cost, green, efficient and wide in substrate application range.
Owner:SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING

Application of lipidosome nano-selenium in preparation of nutritional feed additive

The invention relates to application of lipidosome nano-selenium in preparation of a nutritional feed additive, and belongs to the field of poultry feed. The invention provides an application of lipidosome nano-selenium in preparation of a nutritional feed additive. Experiments prove that the selenium content in serum of the broiler fed with the phospholipid bilayer-coated nano-selenium is remarkably higher than that of the broiler fed with a selenium compound not coated with the phospholipid bilayer, the phospholipid bilayer can promote the broiler to absorb the nano-selenium, the utilization rate of selenium in the broiler is further increased, and the yield of the broiler is increased. The chicken quality is improved. Meanwhile, the lipidosome nano-selenium can improve the immune performance of the intestinal mucosa of the poultry, optimize the intestinal flora structure, promote the generation of beneficial metabolites, namely short-chain fatty acids, of the intestinal tract, improve the health level of the intestinal tract of the poultry, reduce the addition of antibiotics and promote the green, healthy and sustainable development of the livestock and poultry industry.
Owner:GUANGZHOU TANKE BIO TECH +1

Stabilization of selenite in a nutritional solution by dissolved oxygen

ActiveUS12714725B2Sodium HydroseleniteNutrition
The invention relates to a medical product for preventing or correcting selenium deficiency in a patient comprising a solution provided in a flexible container comprising at least one selenium compound in the form of Se(IV), which is preferably selected from the group consisting of sodium selenite, selenous acid and selenium dioxide, characterized in that the solution comprises dissolved oxygen (DO), preferably 0.5 ppm to 8 ppm DO.
Owner:BAXTER INT INC +1

Organic selenium compounds and their use in preparing anticancer drugs

The present invention provides novel organoselenium compounds and methods for their synthesis, as well as their use in the preparation of drugs for the prevention and / or treatment of cancer. The compounds provided by the present invention combine naturally occurring active compounds with selenium, creating a synergistic anticancer effect and enhancing their safety and anticancer efficacy, showing great potential for the prevention and treatment of cancer.
Owner:INSTITUTE OF PROCESS ENGINEERING CHINESE ACADEMY OF SCIENCES

Application of nutritional composition in preparation of immunoregulation product

The invention discloses an application of a nutritional composition in preparation of an immunoregulation product. The nutritional composition comprises a lactoferrin gastrointestinal digest and a selenium gastrointestinal digest, wherein in the nutritional composition, the content of the lactoferrin gastrointestinal digests is 80 to 180 [mu] g / mL; in terms of selenium element, the content of selenium gastrointestinal digests is 12-28 ng / mL. The nutritional composition provided by the invention contains digestive juice compounded by lactoferrin and selenium, and compared with single lactoferrin and selenium, the nutritional composition has a better synergistic anti-inflammatory effect.
Owner:MEAD JOHNSON PEDIATRIC NUTRITION TECH (GUANGZHOU) CO LTD +1

A combined detection tube for detecting carbon monoxide concentration in blood

The present application belongs to the field of gas detection, and relates to a combined detection tube for detecting carbon monoxide concentration in blood. The device of the present application is composed of a sample adding tube and a detection tube. The filler section arranged in the sample adding tube can effectively destroy red blood cells to release CO gas under the action of Cr(VI) / Cr(III) redox system, and at the same time, the reducing substances such as glutathione (GSH) and ascorbic acid in blood are removed through the interference removal section, thereby significantly improving the specificity and accuracy of detection. The indicating glue section in the detection tube adopts a platinum-selenium compound and a potassium iodate system, which occurs a color reaction in the presence of CO: I2O5+5CO→I2+5CO2, and the generated iodine element presents a brown color development band, the length of which is positively correlated with the concentration of HbCO, so as to realize the visual quantitative analysis of the content of carboxyhemoglobin in blood.
Owner:NINGBO HEALTH GENE TECHNOLOGIES CO LTD

MXene-SnO2 composite material, preparation method and application

The invention discloses an MXene-SnO2 composite material, a preparation method and application. The composite material comprises a semiconductor substrate material and a tin-containing compound, the material of the semiconductor substrate is MXene; the MXene is at least one of Ti2C3 and TiMoC2, and the MXene is at least one of Ti2C3 and TiMoC2; the selenide is SnO2 (stannic oxide). According to the invention, MXene is taken as a substrate, in-situ construction of the oxide nanosheet on MXene is realized by adopting a one-pot method, the nanosheet has a loose structure and relatively large porosity, and a rapid dynamic process in an NH3 sensing process can be realized. Besides, by regulating and controlling the oxygen vacancies on the surface of SnO2, the construction of more Lewis acid sites can be realized, so that the affinity of the material to NH3 molecules is enhanced, and efficient sensing detection is realized.
Owner:DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES

Bis-selenium compounds, selenium-containing thin films, and methods of making the same

The present application relates to the technical field of chemical synthesis, in particular to a double selenium compound, a selenium-containing film and a preparation method thereof.The double selenium compound has a structure of formula (I).The preparation method comprises the following steps: mixing a compound of formula (II) and an inorganic diselenide to obtain the compound of formula (I).The present application takes the double selenium compound as a core raw material, and combines a substrate and optional reagents such as a reducing agent, a base, a melanin precursor and an oxidizing agent to prepare a selenium-containing film under mild conditions.The present application solves the synthesis problem of integrating catechol and diselenide bond and the application bottleneck of uneven distribution of selenium components and weak binding force in the selenium-containing film, and the product has good adhesion and stability, and has a wide application prospect.
Owner:BEIJING NORMAL UNIVERSITY

Method for recovering Se and TeO2 from tellurium-containing crude selenium refining slag

The invention discloses a method for recovering Se and TeO2 from tellurium-containing crude selenium refining slag, which comprises the following steps of: crushing the tellurium-containing crude selenium refining slag, performing temperature-controlled roasting, decomposing nitrate, and oxidizing tellurium into a high valence state; the roasting slag and a reducing agent are mixed and heated under the vacuum condition, so that the selenium compound is reduced into elemental Se and volatilized, and meanwhile high-valence tellurium is reduced into tetravalent tellurium salt residues; crushing the reduced product, performing water-soluble leaching, and filtering to obtain a solution containing selenite and tellurite and TeO2 precipitate; adding acid into the leaching filtrate to hydrolyze the tellurite salt into TeO2 precipitate, and filtering and separating to obtain TeO2 and selenium-containing filtrate; finally, acid and a reducing agent are added into the selenium-containing filtrate, and selenite is reduced into elemental Se precipitate. The method realizes efficient separation and recovery of selenium and tellurium, is reasonable in process flow and high in recovery rate, and has a good application prospect.
Owner:KUNMING DIBOO TECH

Method for recycling germanium-selenium-arsenic and arsenic-selenium-chalcogenide glass cold working mixed chips

The invention provides a method for recovering germanium-selenium-arsenic and arsenic-selenium-chalcogenide glass cold working mixed chips, which utilizes the physicochemical properties of all components in the germanium-selenium-arsenic and arsenic-selenium-chalcogenide glass cold working mixed chips, introduces a segmented vacuum fractionation process, and enables water, oil and other low-boiling-point pollutants in raw materials to be recycled at different heating and condensing temperatures, so as to obtain the germanium-selenium-arsenic and arsenic-selenium-chalcogenide glass cold working mixed chips. The arsenic-selenium compound and the elementary substance enter a gas phase in sequence, and separation from the Ge-Se binary compound and the high-boiling-point impurities is achieved; the fractionation residue Ge-Se binary compound is subjected to oxidizing roasting, germanium concentrate and coarse selenium dioxide are obtained, the direct recovery rate of germanium reaches 96.5%, and the comprehensive direct recovery rate of selenium reaches 97.8%. The method effectively solves the problem of difficult recovery of germanium-selenium-arsenic and arsenic-selenium chalcogenide glass cold processing mixed chips, realizes green and efficient cyclic utilization of rare and precious metal elements in the material, is simple in process and environment-friendly, and provides support for benign development of the chalcogenide glass industry in China.
Owner:KUNMING UNIV OF SCI & TECH +1

Organic selenium compound and application thereof in preparation of antioxidant

The invention provides an organic selenide. The organic selenide has a structure shown as the following I. The natural active compound sinapic acid is combined with the selenium element to synthesize the novel organic selenium compound, so that the blank of drug combination of a traditional Chinese medicine antioxidant activity structure and the selenium element is filled up, the antioxidant activity of the traditional Chinese medicine antioxidant activity structure and the selenium element generates a synergistic effect, and the safety and the antioxidant effect are improved; and the compound has huge potential in the aspects of preparing antioxidants, medicines for preventing and / or treating diseases caused by oxidative damage and the like.
Owner:INSTITUTE OF PROCESS ENGINEERING CHINESE ACADEMY OF SCIENCES

Forming an indium chalcogenide film

ActiveUS20250320600A1Chemical vapor deposition coatingSelenium CompoundTellurium compounds
Methods, systems, and devices for forming an indium chalcogenide film are described. Precursors that include an indium-cyclopentadienyl compound may enable formation of indium chalcogenide films at a lower temperature as compared to other precursors including indium, as the reactivity of indium-cyclopentadienyl compounds may be higher than these other precursors. Additionally, using ammonia as a reagent during the atomic layer deposition process to form the indium chalcogenide film may enable an increased rate of formation of indium chalcogenide films for a given temperature. A method may include reacting an indium-cyclopentadienyl precursor and a second precursor that includes a selenium compound or a tellurium compound to form an indium chalcogenide.
Owner:MICRON TECHNOLOGY INC

Electrode material of hollow tire-like carbon material composite transition metal sulfoselenide

The application discloses a hollow tire-shaped carbon material composite transition metal sulfur selenium compound electrode material, which comprises an aspergillus niger spore-derived carbon framework with a three-dimensional hollow tire-shaped structure and a transition metal sulfur selenium compound nanosheet material loaded on the carbon framework, and an outer layer of the nanosheet material is coated with a carbon layer; the electrode material has a chemical composition represented by ANDC@MSSe@C, wherein ANDC is an aspergillus niger-derived hollow tire-shaped carbon framework, and M is a metal element Sn, Mo or W. The electrode material has a high specific capacity, a good retention after 2000 cycles, a good and stable electrochemical performance, and a very good structural stability and cycle life under an ultrahigh rate. The raw material cost of the application is low, energy consumption is low, reaction conditions are easier to realize, and the application is convenient for commercial application, and the application shows a great application prospect in a sodium ion battery.
Owner:CHONGQING UNIV OF ARTS & SCI

Environment-friendly crude selenium fire refining process

The invention discloses an environment-friendly crude selenium fire refining process which comprises the following steps: heating and melting a crude selenium raw material in a closed reactor, adding a molten oxidant, and stirring for reaction to generate tellurium slag, refined selenium liquid and nitrogen oxide tail gas; standing and separating to obtain purified selenium liquid and tellurium-containing waste residues; the method comprises the following steps: crushing tellurium-containing waste residues, carrying out temperature-controlled roasting, oxidizing tellurium into high-valence tellurium, mixing the tellurium with a reducing agent, heating in a vacuum reduction furnace, reducing a selenium compound into elemental selenium, volatilizing, returning to a refining process, and keeping tellurium in the residues; finally, nitrogen oxide tail gas is introduced into a tail gas treatment device to be reduced into nitrogen and carbon dioxide. The method realizes efficient separation and comprehensive recovery of selenium and tellurium, realizes harmless treatment of tail gas, and has the advantages of reasonable process flow, high resource utilization rate, environmental friendliness and the like.
Owner:KUNMING DIBOO TECH

Preparation method of lysozyme-nanoselenium complex and application thereof in ROS scavenging

The application discloses a preparation method of a lysozyme-nano selenium compound and application of the lysozyme-nano selenium compound in ROS removal. To mix sodium selenite solution and lysozyme uniformly, a lysozyme-sodium selenite solution is obtained, then vitamin C is added, and the mixture is uniformly mixed under the condition of light shielding and at room temperature, the pH value is adjusted to 6.5-7.5, a red solution is obtained, and dialysis is performed, so that the lysozyme-nano selenium compound is obtained. The lysozyme-nano selenium compound has the advantages of simple process, mild preparation condition, higher stability, biological safety, efficient ROS removal in egg white, and no influence on the regulation ability of the functional property, edible quality and other characteristics of the egg white, so that the deterioration problem of the egg white in the storage process is solved. The lysozyme-nano selenium compound has good application prospect in ROS removal, and can be applied to the fields of biomedical science and material science.
Owner:SOUTH CHINA AGRICULTURAL UNIVERSITY

A sulfur-selenium co-doped carbon fluoride material, a preparation method and application thereof

The application discloses a kind of sulfur selenium co-doped carbon fluoride materials, preparation method and application thereof, belong to carbon fluoride material field, a kind of sulfur selenium co-doped carbon fluoride material, including carbon fluoride, carbon fluoride surface doped with sulfur selenium compound, the mass fraction of sulfur selenium compound is 9.99%-30%.The sulfur selenium co-doped carbon fluoride material of the application, preparation method and application thereof synthesize a kind of sulfur selenium co-doped carbon fluoride material by simple heating treatment, can improve the discharge voltage and rate capability of carbon fluoride material under large rate.
Owner:FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI

Preparation method and application of nickel-selenium compound with inverse opal structure

The invention discloses a preparation method and application of a nickel-selenium compound with an inverse opal structure, and belongs to the technical field of material preparation. The method comprises the following steps: assembling a polystyrene nanosphere template on a conductive substrate through a vertical pulling method, filling pores of the template with a nickel-selenium compound precursor through constant potential electrodeposition, removing the template, and carrying out inert atmosphere heat treatment to obtain the three-dimensional ordered macroporous network inverse opal structure nickel-selenium compound. The invention also provides application of the material as a working electrode in non-enzymatic glucose electrochemical detection. The nickel-selenium compound with the inverse opal structure has a highly-ordered and communicated pore channel network, a large number of active sites can be exposed, diffusion mass transfer can be accelerated, and therefore the conductivity and the electrocatalytic activity are improved. Through the synergistic effect of structural design and element composition, the sensitivity, the linear range and the selectivity of glucose detection are further improved, and the application potential of the sensor in a non-enzymatic glucose sensor is highlighted.
Owner:YANBIAN UNIV

Liquid sample atomization device applied to direct mass spectrometry of selenium compound

The utility model relates to the technical field of selenium detection devices, and particularly discloses a liquid sample atomization device applied to direct mass spectrometry of selenium compounds, which is characterized in that a first one-way valve is fixedly mounted in one end, close to a small air compressor, of a first conveying pipe, and a second conveying pipe is fixedly mounted at the top of the first conveying pipe; a second one-way valve is fixedly installed in the end, away from the first conveying pipe, of the second conveying pipe, a third conveying pipe is fixedly installed on the side wall of the second conveying pipe, a third one-way valve is fixedly installed in the end, close to the second conveying pipe, of the third conveying pipe, and a fourth conveying pipe is fixedly installed at the top of the third one-way valve. The first one-way valve controls the flow direction of the selenium-containing solution in the first conveying pipe and prevents the selenium-containing solution from flowing back, so that the accurate solution transfer and control ensure that the selenium-containing solution can stably and accurately enter the reaction cavity for detection, solution leakage or wrong transfer is avoided, the detection accuracy and stability are improved, the detection error is reduced, and the detection efficiency is improved. And reliable sample conveying guarantee is provided for selenium detection.
Owner:CHANGZHOU ZHILING TECHNOLOGY CO LTD

Selenium-rich slow-release fertilizer for grapes in sierozem-sandy loam region and preparation method of selenium-rich slow-release fertilizer

The invention relates to the technical field of fertilizers, and discloses a selenium-rich slow-release fertilizer for grapes in a sierozem-sandy loam area and a preparation method thereof.The selenium-rich slow-release fertilizer for the grapes comprises a selenium source, a fertilizer base, a fertilizer base, a fertilizer base, a fertilizer base, a fertilizer base, a fertilizer base and a fertilizer base, the chelating agent is prepared from humic acid-Zn and EDTA (Ethylene Diamine Tetraacetic Acid)-Ca; the selenium activating agent is montmorillonite modified by ammonium dihydrogen phosphate; an anti-fixation agent, wherein the anti-fixation agent is a complex of L-proline and selenium; the slow-release carrier is a coating film formed by polycaprolactone or polylactic acid and humic acid; the quick-acting carrier is pH response type gel formed by cross-linking gamma-polyglutamic acid and Ca < 2 + >; micromolecular soybean protein titanium; the invention relates to a lignin-acrylic acid grafted copolymer. Through slow / quick-acting double carriers and a multiple chelation anti-immobilization system, the beneficial effects of high bioavailability and staged on-demand release of selenium in sierozem are obtained.
Owner:SHANGLUO UNIV +1

Selenium-containing gentiopicroside nitroxide free radical derivative as well as preparation method and application thereof

PendingCN121949424AGood in vitro anti-inflammatory activitygood scavenging activityOrganic active ingredientsSugar derivativesRos scavengingSelenium Compound
The invention belongs to the technical field of medicinal chemistry, and particularly relates to a selenium-containing gentiopicroside nitroxide free radical derivative as well as a preparation method and application thereof. A series of selenium-containing gentiopicroside nitroxide free radical derivatives with a specific structure are prepared and synthesized through a chemical process, and the selenium-containing compound derivatives obtained by adding a selenium-containing structure on the basis of the gentiopicroside nitroxide free radical derivatives show good in-vitro ROS scavenging activity and anti-inflammatory activity; the expression level of an inflammatory medium iNOS is effectively reduced, and the compound has a wide application prospect in preparation of medicines with the effects of preventing, relieving or treating inflammation.
Owner:GANSU UNIV OF CHINESE MEDICINE