57 results about "Chemical interaction" patented technology

An example system for detecting and quantifying drug and / or chemical interactions with a biological sample is provided. The system includes a detection instrument with computing capability. The system includes an assay device capable of receiving a biological sample. Introduction of the biological sample into the assay device results in a biological process by which fibrin and platelets may accumulate at a reaction zone of the assay device. The assay device is capable of receiving one or more chemical reagents and one or more drug reagents. The fibrin and platelets, and their associated signals, accumulated at the reaction zone of the assay device are usable to determine at least one of a drug presence, a drug class, a drug level in relation to a threshold, or a drug concentration, within the biological sample.

The invention discloses a wool knitted suede machine washable bio-based fabric and a preparation method thereof. According to the fabric, merino wool and bio-based nylon are blended to serve as raw materials, grey cloth is woven through a circular knitting machine and subjected to fulling milling treatment, then CO2 plasma is adopted for activating the wool fiber surface, and carboxyl and other polar groups are introduced to the wool fiber surface; then hydroxyl-terminated silicone oil reacts with the carboxyl, a uniform shrink-proof film is formed on the surface of the wool fiber, meanwhile, hydroxyl in the hydroxyl-terminated silicone oil can generate hydrogen bond or chemical action with the end group of the bio-based nylon, and therefore cross-fiber combination is constructed between the wool and the bio-based nylon. According to the invention, wool scales are effectively inhibited from being interlocked, the shrink resistance is obviously improved, and the interfacial compatibility of wool and bio-based nylon is enhanced, so that the fabric still keeps excellent dimensional stability and suede hand feeling under the condition of multiple times of machine washing. The method is green and environment-friendly, the process is simple and convenient, and the obtained fabric meets the machine washable and bio-based environment-friendly requirements.

Novel nanoconjugate compositions, such as nanoparticle-oligomer arrays (NOAs), and related methods for precision therapeutics and molecular diagnostics. These compositions comprise a core, optionally a nanoparticle core, and a plurality of oligomeric strands forming a dense, highly oriented three-dimensional scaffold. This scaffold architecture is engineered to position functional molecules precisely at desired distances from the core and / or the external surface, thereby controlling their physical and chemical interactions with the core and / or microenvironment, enabling distinct functionalities not observed with the functional molecules in an unstructured formulation.

The present disclosure provides methods for inhibiting scale formation in subterranean reservoirs. The methods may include depositing silica-based nanoparticles on a surface of the subterranean reservoir and transporting a scale inhibitor to the surface of the subterranean reservoir. The scale inhibitor may adhere to the silica-based nanoparticles through a chemical interaction. The silica-based nanoparticles may adhere to one or more surfaces within the subterranean reservoir.

This invention relates to a method for highly selective adsorption of low partial pressure CO2 using an ultraporous azole ionic liquid material, belonging to the field of gas separation and purification technology. The ultraporous ionic liquid material is an ionic adsorbent with selective CO2 adsorption sites and an ultraporous pore distribution, formed by modifying the surface and pore structure of a porous support with multi-site azole ionic liquids. This method is simple to synthesize and easy to scale up. Furthermore, due to the strong chemical interaction between the electronegative sites on the ionic liquid anions and CO2, as well as the ultraporous effect, it synergistically enhances the efficient capture and separation of low partial pressure CO2. Simultaneously, CO2 can be completely desorbed by heating or depressurization. The regenerated ultraporous ionic liquid material is recyclable and exhibits stable performance. This method has advantages such as high capacity and selectivity for low partial pressure CO2, good stability, and recyclability, and has great potential for application in CO2 capture and purification separation.

Electrochromic devices having buffer layer(s) promoting electron transfer between the second transparent electrode and second electrochromic layer while concurrently reducing or inhibiting deleterious chemical interaction between the second electrochromic layer and the second electrode and / or maintaining the conductive state of the second electrode while the device changes from a low transparency of approximately 10-20% transmittance in the visible region to a high transparency of approximately 75% to 95% transmittance with at least a 70% difference in transmittance between the low and high transmittance states and promotes longevity of the device. In certain aspects, the electrochromic devices change from a low transparency state having a gray color to a high transparency state that is substantially colorless within 20 seconds of applying the selective electrical potential to the electrochromic device. The electrochromic device is operated by electrically holding and controlling electrons going into the electrochromic device so a surface reflectivity level varies.

This description relates to a battery element comprising the following: - Electrodes including an anode and a cathode, and - An electrolyte comprising a crystalline material having the composition M2B2O5.x(HOH).y(NOH) between the electrodes. Here, M and N are alkali metals or hydrogen or a mixture of alkali metals or hydrogen, B is titanium, O and H represent elemental oxygen and hydrogen, respectively, and x and y are between 0 and 4 and indicate the presence of H+, OH-, and N+ ions that can move within the crystalline material. In particular, at least one type of ion among H+, OH-, N+, and M+ is mobile to move toward at least one of the electrodes within the crystalline material, and at least one of the electrodes is made of a material suitable for performing chemical interactions with at least one of the H+, OH-, N+, and M+ ions.

The application discloses a hydrogen loss prediction method for an underground hydrogen storage library, and relates to the underground hydrogen storage field.The method comprises the following steps: obtaining time-varying flux of dynamic gas charging and discharging of the underground hydrogen storage library, and establishing a balance physical model of the underground hydrogen storage library; according to a dissolution trend of different minerals under a hydrogen gas, fluid and rock chemical reaction system, a dissolution kinetics model of the different minerals is established; then, the time-varying flux of dynamic gas charging and discharging of the underground hydrogen storage library is combined with the balance physical model and the dissolution kinetics model to solve, so that the change conditions of mineral composition, solution composition and gas composition in the underground hydrogen storage library are obtained, and the hydrogen storage condition of the underground hydrogen storage library is predicted.The application fully considers the complex physical and chemical interaction between hydrogen and reservoir media in the dynamic charging and discharging process of the underground hydrogen storage library, realizes the prediction of hydrogen loss, and improves the efficiency of safe and stable operation of the underground hydrogen storage library.

The invention relates to a biosensor and a method of detecting a target substance by using the biosensor. The biosensor according to an embodiment of the invention includes a reaction layer generating a hydrogen ion through a physical and / or chemical interaction with a target substance in a specimen, a hydrogen ion transfer layer formed on one side of the reaction layer to transfer the hydrogen ion generated in the reaction layer, and a phase transition layer formed on one side of the hydrogen ion transfer layer, in which a phase of a substance changes due to the hydrogen ion transferred from the hydrogen ion transfer layer.

The invention discloses preparation and application of a gold cluster compound for targeted therapy of acute kidney injury diseases, and relates to the field of nephropathy treatment medicines. The molecular composition (Au) is x (S) y, x is equal to 3-144, y is equal to 1-140, and S is a sulfydryl-containing renal injury target protein binding peptide or a sulfydryl-modified renal injury target protein binding peptide. The method comprises the following steps: mixing a gold salt solution with a sulfydryl-containing ligand to form a mixed solution; under the conditions of certain temperature and pH, the mixed solution system is subjected to a reduction reaction, high-valence Au ions in the gold salt are reduced into Au atoms or monovalent Au ions, and Au forms a gold cluster compound through physical or chemical interaction; the cluster compound disclosed by the invention has remarkable treatment activity in a cis-platinum induced acute kidney injury model, and the acute kidney injury is treated in a targeted manner by inhibiting over transcription and expression of pro-inflammatory cytokines and removing reactive oxygen species (ROS).

The invention provides a composite solid electrolyte as well as a preparation method and application thereof, and the composite solid electrolyte comprises the following raw materials in parts by weight: 50-100 parts of inorganic filler; 5 to 15 parts of a plasticizer; 5 to 15 parts of lithium salt; 1-5 parts of a cross-linking agent and 5-20 parts of a chain extender. The composite solid electrolyte comprises the inorganic filler, the plasticizer, the lithium salt, the cross-linking agent, the chain extender and other components, complex physical and chemical interaction exists among the components, and the composite solid electrolyte with high ionic conductivity, excellent mechanical performance and electrochemical stability is jointly constructed. Through performance optimization of the composite electrolyte, the problems of large thickness, high brittleness and poor interface contact of a traditional inorganic solid electrolyte layer are solved, and powerful technical support is provided for development and commercial application of a solid-state battery.

This invention belongs to the field of battery technology, specifically relating to a dual-network gel electrolyte, its preparation method, and its application. The raw materials of the dual-network gel electrolyte include a first polymer, a second polymer, a metal salt, a plasticizer, a crosslinking agent, and a solvent. The first polymer forms a flexible first network through chemical crosslinking, serving as the main channel for ion transport to ensure high ionic conductivity. Simultaneously, the second polymer is introduced, interpenetrating with the first network through physical or chemical interactions to form a second network. This structure, through synergistic action, preferentially causes reversible damage to the second network to dissipate energy when subjected to external forces (such as zinc dendrite growth stress), thereby protecting the integrity of the main chain structure and ion channels of the first network. Ultimately, the gel achieves excellent mechanical properties such as high toughness and puncture resistance while maintaining high ionic conductivity and excellent capacity retention, solving the problem of mutual constraint between the two in traditional solutions.

The present disclosure relates to a composition for three-dimensional cell and / or organoid culture, comprising a phase-changing matrix comprising a partially ordered polypeptide, and a plurality of cells encapsulated in the matrix. In embodiments, the plurality of cells comprises one or more cell types, including at least one cell type selected from the group consisting of: bone-marrow derived mesenchymal stem cells and adipose-derived mesenchymal stem cells. In embodiments, the one or more cell types comprises mesenchymal stem cells, the partially ordered polypeptide comprises at least one chemically-interactive sequence such as arginylglycylaspartic acid (RGD) sequence, the matrix forms a porous network when heated above a transition temperature, and the partially-ordered polypeptide comprises a plurality of structured domains, and a plurality of disordered domains.

A conformable cover plate can be used to provide a barrier layer between ceramic matrix composite (CMC) components of jet engines and metallic ancillary hardware that is used, for example, to support the CMC components within the engine. The cover plate conforms to a structure feature of the CMC component that will be in close proximity to the ancillary hardware. By acting as a barrier layer, the conformable cover plate can reduce abrasion of the CMC material and / or prevent or ameliorate undesired chemical interactions between SiC-containing CMCs and Ni-based metals. Further, the conformable cover plate can act as a heat shield to lower heat transfer between CMC components and the ancillary hardware.

This invention proposes an oxygen-enriched three-phase photocatalyst based on a superhydrophobic carbon nitride mesh, its preparation method, and its application. The method involves preparing a porous carbon fiber felt substrate through multi-stage ultrasonic cleaning, obtaining a carbon nitride mesh via pyrolysis, and then preparing a nitrogen-vacancy-modified carbon nitride mesh using argon-oxygen plasma etching. A gradient-grafted donor-acceptor composite material is prepared through gas-phase contact modification combined with liquid-phase photolithography and gradient thermopressing bonding, synergistically constructing an oxygen mass transfer channel at the gas-liquid-solid three-phase interface to achieve oxygen-enriched photocatalysis. This invention prepares the gradient-grafted donor-acceptor composite material through gas-phase contact modification combined with liquid-phase photolithography and gradient thermopressing bonding processes, constructing a robust chemical bonding interface on the carbon nitride mesh surface. This significantly enhances the bonding strength between the modified layer and the substrate material, overcoming the problem of easy detachment of the modified layer caused by relying solely on physical adsorption or weak chemical interactions in existing technologies.

The invention relates to the technical field of civil engineering materials, in particular to modified steel fiber concrete and a preparation method thereof, and the concrete comprises the following raw material components in parts by weight: 350-450 parts of cement; 30 to 50 parts of fly ash; 80 to 120 parts of slag; 20 to 25 parts of silicon powder; 1100 to 1200 parts of stone; 130 to 150 parts of water; 1.0 to 1.8 parts of a water reducing agent; 15 to 20 parts of modified steel fiber; and 0.8 to 1.2 parts of polypropylene fiber. The caffeic acid molecules and the surface of the steel fiber form strong chemical interaction, a traditional physical bonding mode is fundamentally changed, the interface bonding strength and the mechanical property of a concrete matrix are improved, and a compact modified film is formed to enhance durability. Therefore, the problems of environmental pollution, poor cement matrix compatibility and the like are solved.

This invention relates to the field of fuel additive technology, specifically to a nano-magnesium hydride-attapulgite composite fuel additive and its preparation method. The additive consists of nano-magnesium hydride, a modified attapulgite carrier, and a cerium-based combustion-supporting catalyst, with a mass ratio of 1:(5-20):(0.01-0.1). The modified attapulgite carrier is a surface-grafted graphene-coated composite carrier material. This application achieves anchoring by isolating nano-magnesium hydride particles through a physical barrier network of graphene sheets and by overcoming the strong chemical interaction between the grafted functional groups and nano-magnesium hydride, thus solving the core problems of unstable dispersion, easy agglomeration and deactivation, and insufficient carrier compatibility and anchoring ability. Under the high-temperature environment of the combustion chamber, the highly active hydrogen species released by the decomposition of nano-magnesium hydride can hydrogenate and crack fuel macromolecules and soot precursors, accelerating the combustion chain reaction. The cerium-based compounds provide continuous active oxygen for deep oxidation of soot through their oxygen storage and release function.

The invention discloses a method for accurately measuring interaction force among mineral particles based on anisotropy of a mineral crystal face, and belongs to the field of measurement of physical and chemical interaction of mineral surfaces. According to the invention, the piezoelectric sensor drives the colloid probe on the AFM needle-point-free cantilever to get close to the surface of a single mineral crystal face and get away from the single mineral crystal face, so that the interaction process of two mineral particles is simulated, and accurate measurement of the interaction force between the particle surfaces is realized in combination with an EDLVO theoretical model. Compared with the traditional characterization means, the method has the advantages that the theoretical fitting error is greatly reduced, the interaction force in the particle aggregation process and the like can be measured more directly, microcosmically and accurately, the evolution rule of the anisotropy of the mineral crystal face is further clarified, and the crystal face dependence of the interaction force among the mineral particles is revealed.

The utility model discloses a chemical interaction reaction device for an ex-reactor fuel cladding. The chemical interaction reaction device comprises a reaction cavity, an argon supply unit for providing argon, an oxygen supply unit for providing oxygen and an oxygen control unit, the argon supply unit is respectively connected with the reaction cavity and the oxygen supply unit; the oxygen supply unit is connected with the reaction cavity, and oxygen and argon from the argon supply unit are mixed and then conveyed into the reaction cavity; the oxygen control unit is used for detecting the oxygen content in the reaction cavity and controlling the oxygen supply unit to start and stop according to the oxygen content. According to the utility model, the argon supply unit, the oxygen supply unit and the oxygen control unit are matched, so that the conveying flow of argon-oxygen mixed gas can be controlled and adjusted, the oxygen content in the reaction cavity is controlled, and the oxygen content in a fuel-cladding gap under different burnup in a reactor is effectively simulated; the oxygen content balance in the reaction cavity can be prevented from being damaged by volatile fission products Cs and the like.

A computer-implemented method includes identifying, in a set of previously aligned nucleotide and polypeptide sequences characteristic of a candidate protein, which can be referred to as target residues; identifying at least one candidate region consisting of at least one pair of target residues identified in the first step that include target residues located at a determined distance in space and being exposed at the surface of the candidate protein; determining the advantageous chemical interactions between each residue and / or between each pair of residues within the candidate protein, from the 2D and / or 3D structure of the candidate protein that are hydrophobic bonds and / or hydrogen bonds and / or saline bridges and / or negative-repulsion and / or positive-repulsion bonds; selecting the residues linked by said advantageous chemical interactions that are at a distance of at most 10 angstroms; and selecting at least one therapeutic target region from among the candidate regions that include the selected residues.

This invention discloses a functionalized MXene-supported metal oxide catalytic material, its preparation method, and its applications. The preparation method includes: fully contacting a pretreated metal substrate with a liquid-phase system containing MXene and metal ions and reacting at high temperature, followed by annealing in air to obtain the MXene-supported metal oxide material; and then subjecting it to electrochemical or chemical treatment to obtain the functionalized MXene-supported metal oxide catalytic material. In the functionalized MXene-supported metal oxide catalytic material of this invention, electron transfer occurs between the functionalized MXene and the metal oxide, promoting the formation of more active sites in the metal oxide that are conducive to catalyst-reactant electron exchange, thereby improving the activity of the oxygen evolution reaction (OER). Simultaneously, the functionalized MXene has abundant surface groups, which can generate strong chemical interactions with the metal oxide, improving the stability of the metal oxide in acidic media.

The invention discloses a composite material for treating vinasse wastewater as well as a preparation method and application thereof, and belongs to the technical field of industrial pollutant treatment. The composite material is formed by compounding sulfonated vinasse lignin and chitosan through chemical interaction. The preparation method comprises the following steps: mildly and efficiently extracting lignin from vinasse by using a p-toluenesulfonic acid solution; performing sulfonation modification on lignin by using formaldehyde and sodium sulfite, and introducing a sulfonic acid group; and finally, performing chemical compounding on the sulfonated lignin and the chitosan solution to obtain a final product. The solid waste vinasse in the wine making industry is used as the raw material, the effect of treating waste with waste is achieved, cost is low, and environment friendliness is achieved. Through the synergistic effect of sulfonation and compounding, the prepared material has a rich porous structure and multiple active functional groups, shows efficient synergistic adsorption removal capacity on pollutants such as chemical oxygen demand, total phosphorus and ammonia nitrogen in vinasse wastewater (especially in the advanced treatment stage), and is easy to regenerate and good in recycling performance.

This invention relates to the field of batteries, specifically disclosing perovskite solar cells and tandem solar cells, photovoltaic modules, power generation devices, and power consumption devices. The perovskite solar cell of this invention includes: a first electrode layer; a hole transport layer disposed on one side of the first electrode layer; a perovskite layer disposed on the side of the hole transport layer opposite to the first electrode layer; and a second electrode layer disposed on the side of the perovskite layer opposite to the hole transport layer. The hole transport layer comprises a compound of Formula I and a hole transport material. This invention uses a compound of Formula I with electron-donating groups on both sides as an interface passivation material for the perovskite layer. The electron-donating groups on both sides generate chemical bonds and / or chemical interactions with cations in the perovskite layer, reducing interface defects in the perovskite layer, optimizing interface contact, and thus improving the photoelectric performance of the battery.

The invention discloses an MXene-coated ZrOhybrid filler reinforced polyimide composite coating as well as a preparation method and application thereof, and belongs to the technical field of functional coating materials. The method comprises the following steps: firstly, respectively carrying out surface modification on MXene and nano ZrO by virtue of dopamine and a silane coupling agent KH550, and then synthesizing an MXene-coated ZrO hybrid filler with a particle-plane structure by virtue of electrostatic and chemical effects; then introducing the hybrid filler into a polyamide acid precursor through an in-situ polymerization method, and forming a composite coating on the surface of a metal substrate through coating and gradient thermal imidization. According to the hybrid filler, the dispersity and interface combination of the hybrid filler in a matrix are remarkably improved, so that the coating has high hardness, strong adhesive force and excellent antifriction and wear-resisting properties. Experiments show that the friction coefficient of the coating is reduced by about 48% compared with that of a tin bronze matrix, the wear rate is reduced by about 91%, the coating is suitable for wear-resistant protection of surfaces of harsh friction pairs such as a hydraulic pump bearing bush pair, and the service life of parts can be remarkably prolonged.

The application discloses a perovskite solar cell containing a double-layer trifluoroacetate modification layer and a preparation method thereof. The perovskite solar cell comprises, from bottom to top, a conductive glass, an electron transport layer, an electron transport layer modification layer, a perovskite layer, a perovskite modification layer, a hole transport layer and an electrode; the electron transport layer modification layer and the perovskite modification layer are one of methylamine trifluoroacetate, formamidine trifluoroacetate, dimethylamine trifluoroacetate, ethylamidine trifluoroacetate, ethylenediamine trifluoroacetate and guanidine trifluoroacetate. The application simultaneously fills and modifies defects of the electron transport layer and the perovskite layer, passivates oxygen defects in the tin oxide and ion vacancies in the perovskite layer through hydrogen bonds and chemical interactions, and solves the problems of the perovskite solar cell, such as many defects in the electron transport layer and the perovskite layer, low efficiency and poor stability.

The application discloses a MXene@NiSe2 heterostructure material for a lithium-sulfur battery sulfur host material and a preparation method thereof.The method is characterized in that: the MXene material is obtained through etching and hand shaking centrifugation on a MAX phase material, and a large number of negative charges on the surface of the material can attract positive metal ions; the MXene material is used as a support material to grow NiSe2 nanoparticles on the surface of the material through further microwave reaction, thereby obtaining the MXene@NiSe2 heterostructure material; when the material is applied to a lithium-sulfur battery sulfur host material, a large number of functional groups on the surface of the MXene material can promote the formation of strong chemical interaction with polysulfides and effectively catalyze the reaction kinetics; the excellent conductivity of the MXene material and the catalytic activity of the NiSe2 material can relieve the "shuttle effect", meanwhile, the contact interface (heterostructure) between the two materials can generate more catalytic / adsorption active sites, promote electron transfer, and improve the rate capability and cycle stability of the battery; and the material prepared by the application can improve the performance of the lithium-sulfur battery and has a large application prospect.

The application provides a method and system for simulating the physical and chemical coupling of atmospheric diffusion under a nuclear and chemical integrated accident scene. The method first constructs a parameterized model of a nuclear and chemical integrated source term, determines the distribution ratio of nuclides on particles of different chemical properties according to the physical characteristics of nuclides and the release rate of chemical components; then runs the aerosol dynamics coupling evolution operator to monitor the concentration of hazardous chemicals and the relative humidity in the simulation space in real time, calculates the particle size change and density change of the nuclide carrier aerosol in the diffusion process; based on the evolved physical parameters, the settling term in the atmospheric diffusion equation is corrected in real time, and the dynamic diffusion distribution of radioactive nuclides in three-dimensional space is deduced by using the iterative step method; finally, the ground pollution correction map and the synergistic damage evaluation results under the nuclear and chemical integrated accident are output in combination with the chemical and radiation synergistic factors. The application solves the problem of diffusion prediction distortion caused by the neglect of the physical and chemical interaction in the traditional model, and improves the accuracy of complex disaster consequence evaluation.

The application provides an anti-ultraviolet water-based paint based on metal polyphenol network modified mica nanosheets and a preparation method thereof. The paint comprises metal polyphenol network modified mica nanosheets, a polymer carrier and water, wherein the metal polyphenol network modified mica nanosheets comprise mica nanosheets and a metal polyphenol network chemically modified on the surface of the mica nanosheets, the metal polyphenol network is a complex structure formed by the combination and assembly of plant polyphenols and metal ions through chemical interaction therebetween, wherein in the metal polyphenol network modified mica nanosheets, the molar ratio between the plant polyphenols and the metal ions is in the range of 1:3-4:1, and the modification amount of the metal polyphenol network accounts for 10%-50% of the mass of the mica nanosheets. The paint has excellent ultraviolet shielding performance and also has transparency, and is thus very suitable for applications in occasions requiring high transparency, such as building glass, automobile windows, transparent packaging materials and the like.

A current collector for a solid-state battery is presented. The current collector includes a copper substrate coated with a continuous, close-packed polydopamine film. The polydopamine coating is formed to prevent chemical interaction between the copper substrate and solid electrolyte particles while maintaining electrical conductivity of the current collector within the solid-state battery.

The application discloses a kind of Au@AgNPs-PDMS film SERS detection platform preparation method and its application in cosmetic asiaticoside detection.The method is first prepared spherical, flower-like, hexagonal three kinds of AgNPs, with asiaticoside as target object, and the flower-like AgNPs with optimal enhancement effect are screened out;Subsequently, Au@Ag core-shell nanoparticles are prepared by seed growth method;Then, PDMS film is treated by plasma hydrophilization and modified by APTMS silanization;Finally, the uniform self-assembly of Au@AgNPs on the surface of PDMS film is realized through the chemical interaction between Ag and amino group.When the detection platform is applied to cosmetic asiaticoside detection, the sample is pretreated first, then SERS spectrum is collected, and finally OPLS-DA and LDA models are used for qualitative identification.The detection limit of the method is 25nM, the linear range is 0.01-0.5mg / mL, the detection time is within 10min, and the method has the advantages of high sensitivity, rapid detection, simple operation, low cost, etc., and is suitable for cosmetic production quality control and market supervision on-site rapid detection.