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99 results about "Intermolecular force" patented technology

Intermolecular forces (IMF) are the forces which mediate interaction between molecules, including forces of attraction or repulsion which act between molecules and other types of neighboring particles, e.g., atoms or ions. Intermolecular forces are weak relative to intramolecular forces – the forces which hold a molecule together. For example, the covalent bond, involving sharing electron pairs between atoms, is much stronger than the forces present between neighboring molecules. Both sets of forces are essential parts of force fields frequently used in molecular mechanics.

Solid dispersion as well as preparation method and application thereof

The invention belongs to the technical field of medicines, and particularly provides a solid dispersion as well as a preparation method and application thereof. The solid dispersion comprises a carrier material, and further comprises quercetagetin and phospholipid, the mass ratio of the quercetagetin to the phospholipid is 1: (0.3-1.5), and the carrier material comprises one or more of a hydrophilic polymer and a pH-dependent polymer. Wherein the quercetagetin and the phospholipid are combined through an intermolecular force, so that the quercetagetin obtains a lipid material similar to a cell membrane structure, a cell membrane bionic phospholipid compound is formed, the cell membrane bionic phospholipid compound can be naturally compatible with an upper wall cell membrane of a small intestine, and the permeation transmembrane capability of the quercetagetin is better promoted; the quercetagetin is added into the solid dispersion, so that more quercetagetin can enter systemic circulation and lymphatic circulation, and therefore, the solid dispersion can strengthen transmembrane absorption while strengthening dissolution, so that the solid dispersion has high bioavailability.
Owner:CHENGUANG BIOTECH GRP CO LTD

Artemisinin derivative nano assembly with anti-tumor activity as well as preparation method and application of artemisinin derivative nano assembly

The invention discloses an artemisinin derivative nano assembly with anti-tumor activity and a preparation method and application thereof. The nano assembly is formed by self-assembling artemisinin derivatives through intermolecular force and modifying the artemisinin derivatives with a PEG modifier; the artemisinin derivative is artesunate or dihydroartemisinin of which the side chain is binary acid or saturated fatty alcohol or unsaturated fatty alcohol; the mass ratio of the artemisinin derivative to the PEG modifier is (10: 90)-(90: 10), so that the technical effects of high drug loading capacity, good stability, low toxic and side effects and the like are realized, the urgent demand on high-efficiency and low-toxicity preparations in clinic is met, a new strategy is provided for the assembly of homotype synergistic drug nanoparticles, and the application prospect is broad. An effective nano platform is provided for developing a carrier-free nano assembly and a high-efficiency and low-toxicity nano preparation.
Owner:SHENYANG PHARMA UNIV

Preparation method of boron-based polymer based on strong-weak dynamic bonds

The invention belongs to the technical field of protective materials, and particularly relates to a preparation method of a boron-based polymer based on a'strong-weak 'dynamic bond, which comprises the following steps: destroying intermolecular force of a boron-based siloxane material and another supramolecular material through a polar solvent, and then fully blending to recombine into a dual-network structure, thereby obtaining the boron-based polymer based on the'strong-weak' dynamic bond. And fully evaporating the solvent to obtain the boron-based polymer based on the strong-weak dynamic bond. According to the invention, the strong-bond silicon-based supramolecular material and the weak-bond silicon-based supramolecular material are subjected to structural interpenetration under the driving of an intermolecular acting force, so that the compatible integration of the two components is promoted, and the novel shear thickening material is formed; by constructing a composite system of a boron-based siloxane material (component A) and siloxane containing a strong dynamic bond (component B), dual-function optimization is realized: a dynamic bond network of the component B not only effectively inhibits the intrinsic cold fluidity defect of the component A, but also inhibits the intrinsic cold fluidity defect of the component B through a dynamic bond synergistic effect on the premise of maintaining the shear thickening characteristic of the system; the mechanical property and the environmental stability of the composite material are obviously improved.
Owner:LANZHOU INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES +1

Boron-nitrogen heterocyclic compound and organic electroluminescent device thereof

The invention belongs to the technical field of organic photoelectric materials, and particularly relates to a boron-nitrogen heterocyclic compound and an organic electroluminescent device thereof. The boron-nitrogen heterocyclic compound provided by the invention has relatively large steric hindrance, on one hand, molecular vibration is reduced, and the boron-nitrogen heterocyclic compound has relatively narrow half-peak width and can effectively improve the color purity of light emitted by a device; on the other hand, the distance between molecules is increased, the acting force between the molecules is weakened, quenching caused by aggregation is overcome, the luminous efficiency of the device can be improved, and the service life of the device can be prolonged.
Owner:CHANGCHUN HYPERIONS TECH CO LTD

A sensitizer for ferroptosis lipid nano-regulator and a preparation method and application thereof

ActiveCN118203670BInhibit expressionEnhance ferroptosis efficacyPharmaceutical non-active ingredientsAntineoplastic agentsAdjuvantCombined treatment
The application discloses a sensitized ferroptosis lipid nano regulator and a preparation method and application thereof, and belongs to the technical field of new adjuvants and new dosage forms of drug preparation combined treatment. The lipid nano regulator is co-assembled by a GPX4 inhibitor and a FASN inhibitor through intermolecular forces, and is modified with an oxidation-reduction sensitive PEG modifier, a molar ratio of the GPX4 inhibitor and the FASN inhibitor is 10:1-1:10, a mass ratio of the sum of the GPX4 inhibitor and the FASN inhibitor to the PEG modifier is 10:90-90:10, and the intermolecular forces include pi-pi stacking force, hydrophobic force and hydrogen bond. The co-assembled nano preparation provides a new strategy and more choices for the development of drug delivery, and meets the urgent needs of high-efficiency and diverse ferroptosis treatment strategies in preparations in the clinic.
Owner:SHENYANG PHARMA UNIV

Carrier-free self-driven nanomotor and preparation method and application thereof

PendingCN122624644ANanomotorPhotosens
The application relates to a carrier-free self-driven nanomotor and a preparation method and application thereof, and belongs to the technical field of biological medicines. The nanomotor is a nanometer assembly formed by co-assembly of a photothermal / light motion dual-enhanced photosensitizer and a near-infrared light response type nitric oxide donor BNN6 through intermolecular force, or is a nanometer assembly formed by co-assembly of a photothermal / light motion dual-enhanced photosensitizer and a near-infrared light response type nitric oxide donor BNN6 through intermolecular force and modified by a polyethylene glycol modifier. The application realizes a synergistic treatment mode of deep tumor penetration and high-efficiency killing by constructing a functional coupling system of "photothermal driving-NO release-motion enhancement-RNS cascade generation".
Owner:SHENYANG PHARMA UNIV

Preparation method for improving metal / polymer bonding strength

According to the preparation method for improving the metal / polymer bonding strength, a polar polymer film layer is pre-plated on the metal surface, the prepared polar polymer film layer and the metal surface containing hydroxyl generate intermolecular acting force, polymer entanglement occurs between the prepared polar polymer film layer and a polymer plate in subsequent thermal connection, and finally the metal / polymer interface acting force is enhanced; and the interface heat transfer efficiency is improved, the interface temperature is increased to 378 DEG C from 331 DEG C, and the metal / polymer interface connection area is increased to 224 mm < 2 > from 179 mm < 2 >. The metal / polymer interface bonding strength is improved by enhancing the metal / polymer interface acting force and improving the interface heat conduction efficiency, the film thickness control freedom degree is high, the film with any thickness can be obtained by controlling spin-coating parameters, and the method has the advantages of being easy to prepare, high in processing efficiency, low in economic cost and wide in application range.
Owner:XIAN AEROSPACEMOTOR MACHINE FACTORY

Carbon material rich in intrinsic defect as well as preparation method and application thereof

The invention discloses a carbon material rich in intrinsic defects as well as a preparation method and application thereof, and belongs to the technical field of catalysts, fullerene or fullerene derivative carbon cages adopted by the invention have a pi conjugated structure, so that relatively strong pi-pi interaction force exists among molecules. Fullerene or a fullerene derivative is used as a raw material, a macroscopic crystalline material, namely a fullerene condensed state precursor, is obtained through self-assembly based on intermolecular acting force, the fullerene condensed state precursor is subjected to pre-etching treatment through oxygen plasma, surface modification is conducted on the fullerene condensed state precursor, and the fullerene or fullerene derivative is obtained. The preparation method comprises the following steps: preparing a fullerene condensed state precursor, performing two-stage temperature programming heat treatment of low-temperature pre-etching treatment and high-temperature roasting in ZnCl2 molten salt, endowing the fullerene condensed state precursor with five-membered ring topological defects and carbon intrinsic defects of boundaries and curvatures, so as to obtain the carbon material rich in intrinsic defects, and endowing the carbon material with good electro-catalytic performance by the intrinsic defect sites.
Owner:LIAONING RUILIN HYDROGEN ENERGY TECH CO LTD

Preparation method of high-extinction-ratio non-adhesive polarization beam splitting film resistant to high and low temperature environments

This invention relates to the field of optical thin film fabrication technology, specifically to a method for fabricating a high extinction ratio, adhesive-free polarizing beam splitter film resistant to high and low temperature environments. The method includes the following steps: S1, substrate pretreatment; S2, polarizing beam splitter film deposition; S3, adhesive-free bonding treatment; S4, annealing strengthening; and S5, post-treatment. This invention uses an adhesive-free optical contact bonding process to replace the traditional organic bonding process, completely eliminating the temperature adaptability bottleneck caused by organic adhesive layers. The bonding interface relies on intermolecular forces for adhesion, eliminating problems such as aging and debonding of organic adhesives. This allows the device to operate stably in a wide temperature range of -60℃ to 120℃, greatly improving the device's environmental adaptability and meeting the needs of extreme environments such as deep space exploration and polar observation.
Owner:苏州华英光电仪器有限公司

Egg white protein nanogel as well as preparation method and application thereof

PendingCN121926271AFood thermal treatmentFood ingredient as foaming agentUltrasonic cavitationProtein structure
The invention discloses a preparation method of egg white protein nanogel. The preparation method comprises the following steps: firstly, adding an ethanol solution with the volume fraction of 0.1-11.5% into egg white liquid, and diluting until the protein concentration is 1-2%; the egg white protein ethanol solution is subjected to microwave and ultrasonic combined treatment, the treatment time is set to be 3-7 min, ultrasonic is in an intermittent mode, the ultrasonic power is 200-800 W, and the microwave heating temperature is 65-75 DEG C. And finally, removing ethanol in the solution subjected to microwave ultrasonic treatment to obtain the egg white protein nanogel particles. The method is different from an existing'bottom-to-top 'preparation method and comprises the following steps: firstly, carrying out mild denaturation on protein by adopting low-concentration ethanol, changing a protein structure and an intermolecular acting force to expose a hydrophobic structure and expand the structure, and then moderately gathering and crushing the protein into microgel by utilizing an ultrasonic cavitation effect and a microwave heat effect; the nanogel has smaller particle size, higher system stability and interface stability, and the preparation method is simple and low in cost.
Owner:QINGDAO HOTEL MANAGEMENT VOCATIONAL & TECH COLLEGE

A heating transmission device suitable for in-situ detection of ultrahigh temperature pyrolysis reaction

The application discloses a heating transmission device suitable for in-situ detection of ultrahigh-temperature pyrolysis reaction, comprising a heating pipe and an adjusting assembly; a sample outlet end of the heating pipe is connectable to a detection device; the heating pipe is divided into a low-temperature zone, a high-temperature zone and an annealing zone; a first water-cooled electrode is arranged outside the low-temperature zone; and a second water-cooled electrode is arranged outside the annealing zone; the adjusting assembly comprises a guide rail and a sliding block; and the sliding block is connected with the first water-cooled electrode or not. The application forms a variable-diameter and variable-temperature zone through combination design of the heating pipe and the water-cooled electrode, guarantees contact between the heating pipe and the protective electrode, builds a relatively slow and uniform temperature gradient in the annealing zone, guarantees generation and dispersion of product molecules and improves transmission efficiency of macromolecular compounds. The application is convenient to connect with a mass spectrometer, can realize in-situ analysis of ultrahigh-temperature pyrolysis reaction and solves the problem that macromolecular products such as polycyclic aromatic hydrocarbons, fullerenes and the like cannot be detected in-situ due to aggregation caused by intermolecular forces in the pyrolysis reaction.
Owner:XIAMEN UNIV

High-performance high-precision gradient hole ultrafiltration membrane and preparation method thereof

PendingCN122273342ANon solventChemical physics
This invention provides a high-performance, high-precision gradient pore ultrafiltration membrane and its preparation method, belonging to the field of membrane preparation technology. Lithium chloride can alter the thermodynamic properties of the casting solution, affecting the aggregation state of polymer molecules and the phase separation process. CTAB has multiple functions in the phase inversion membrane preparation process; as a non-solvent additive, it regulates the phase separation behavior of the polymer PVDF, promoting the formation of more uniform nanoscale channels. DOP has a unique molecular structure and physicochemical properties, playing a multifaceted role in improving membrane performance; by inserting itself between PVDF molecular chains, it weakens the intermolecular forces, making the molecular chains more loosely arranged, thereby forming more interconnected channels and increasing flux. Simultaneously, it helps to form a narrow pore size distribution, reducing macropore defects and improving retention accuracy. This invention, through the mixing of the above substances, effectively achieves a high-porosity, nanoscale pore structure, realizing a high-performance, high-precision gradient pore ultrafiltration membrane preparation method.
Owner:TIANJIN BISHUIYUAN MEMBRANE MATERIAL CO LTD

A nano-assembly for enhancing photodynamic-immunotherapy and a preparation method and application thereof

The application discloses a kind of nano-assemblies of enhanced photodynamic-immunotherapy and its preparation method and application, belong to the technical field of pharmaceutical preparation.The nano-assemblies are co-assembled by photodynamic photosensitizer and cystine / glutamate antiporter inhibitor through intermolecular force of π-π stacking and hydrophobic interaction, and are surface-modified with amphiphilic PEG modifier, the molar ratio of the photodynamic photosensitizer and cystine / glutamate antiporter inhibitor is 10:1~1:10, and the mass ratio of the total mass of the photodynamic photosensitizer and cystine / glutamate antiporter inhibitor and the mass of PEG modifier is 60:40~95:5.The preparation method of the nano-assemblies of the application is simple and convenient, the drug loading efficiency is high, the efficient co-loading of drug can be realized, and the effect of enhancing photodynamic-immunotherapy is achieved, so the nano-assemblies have good clinical application prospect.
Owner:SHENYANG PHARMA UNIV

Graphitized carbon nanotube as well as preparation method and application thereof

The invention relates to a graphitized carbon nanotube as well as a preparation method and application thereof, and belongs to the technical field of nano materials and fibers. An electrolyte with strong ionization property, moderate ion size and a certain hydration effect is added into a precursor solution, and in a low-temperature freezing process, an environment provided by the electrolyte and the precursor solution enables natural high-molecular or polymer molecules to generate a self-assembly behavior based on an intermolecular acting force, so as to obtain the nanotube with ordered molecular arrangement. And carrying out carbonization and graphitization on the obtained nanotube to obtain the graphitized carbon nanotube. The graphitized carbon nanotubes have graphite lattice stripes, the internal height of the graphitized carbon nanotubes is ordered, the number of defects is extremely small, and the crystallinity is extremely high, so that the material has ultrahigh strength, ultrahigh modulus, excellent electric conductivity and thermal conductivity and excellent stability.
Owner:SOUTHWEST JIAOTONG UNIV

Physical experiment simulation system

The invention provides a physical experiment simulation system, and relates to the technical field of material mechanics tests, the physical experiment simulation system is based on an actual stress-strain curve, a simulation test piece three-dimensional model with a gap is established, cells are divided, a typical plane is selected, a groove cell, a slope bottom cell, a stretching cell and a gap cell are divided, and the physical experiment simulation system is obtained. The method comprises the following steps of: performing accurate simulation analysis on each position conveniently, directly simulating a real stretching effect in a stretching cell, acquiring radial stress at a groove cell according to a rotation trend generated by an intermolecular acting force, judging whether a notch cell and a slope bottom cell which serve as stress concentration points are in an elastic deformation stage or not through a vonMises yield criterion, and judging whether the notch cell and the slope bottom cell are in an elastic deformation stage or not. And the deformation condition of each cell caused by the influence of the stress is visualized, and the process and the result of the abnormal test result caused by the gap are intuitively displayed.
Owner:CHAOHU UNIV

Photovoltaic cell, photovoltaic module and processing method of photovoltaic cell

PendingCN121510726ARaman scattering spectraElectrical battery
The invention discloses a photovoltaic cell, a photovoltaic module and a processing method of the photovoltaic cell, the surface of the photovoltaic cell is provided with an antireflection layer, and the antireflection layer has a saturated bond; when the anti-reflection layer on the surface of the photovoltaic cell is characterized by adopting a Raman scattering spectrum analysis test, a Raman spectrum chart obtained by the anti-reflection layer has a characteristic peak A, and the ratio range of the peak intensity of the characteristic peak A to the half-peak width is 1-25. According to the photovoltaic cell, a Raman spectrum chart in the antireflection layer has a characteristic peak A at the position, the ratio range of peak intensity to half-peak width is 1-25, the characteristic peak A is relatively sharp, intermolecular acting force in a molecular structure of the characteristic peak A is high, chemical bonds are not prone to breakage, and therefore the characteristic peak A at the position is the characteristic peak corresponding to a saturated bond; therefore, a large number of saturated bonds exist in the antireflection layer, and only a small number of unsaturated bonds or dangling bonds exist in the antireflection layer, so that the stability and passivation effect of the antireflection layer are ensured, and the photovoltaic cell is further ensured to have relatively good power generation efficiency.
Owner:CHINT NEW ENERGY TECH CO LTD

Environment-friendly curcumin nanocrystal and preparation method thereof

This invention discloses an environmentally friendly curcumin nanocrystal and its preparation method, relating to the field of nanoparticle technology. The nanocrystal has a core-shell structure, with a core of curcumin crystals and a shell of hepatin peptide molecules bonded together by intermolecular forces. The average particle size of the nanocrystal is 50-200 nanometers, and it is completely dispersed and stable in an aqueous phase, containing no organic solvents or synthetic surfactants. This invention utilizes a pectin-chitosan complex to microencapsulate the nanocrystal, enabling it to resist gastric acid degradation and target release to the colon, thus precisely acting on the gut-hepatic axis and significantly improving bioavailability and hepatoprotective efficacy. While completely avoiding organic solvents and synthetic stabilizers, it simultaneously solves four major industry challenges related to curcumin: solubility, stability, targeted delivery, and synergistic efficacy, providing a new technical path for developing high-end, naturally derived hepatoprotective products.
Owner:MINGXING KEPAI BIOTECHNOLOGY (SHANGHAI) CO LTD

Olmesartan medoxomil pharmaceutical co-crystal as well as preparation, preparation method and application thereof

The invention discloses an olmesartan medoxomil pharmaceutical co-crystal as well as a preparation, a preparation method and application thereof. The co-crystal is formed by olmesartan medoxomil and a specific co-crystal forming agent through intermolecular force. The invention also particularly provides a compound preparation containing the olmesartan medoxomil pharmaceutical co-crystal and hydrochlorothiazide. Through the eutectic technology, the invention fundamentally overcomes the inherent defects of low solubility and slow dissolution of olmesartan medoxomil as a BCS II drug. Experiments show that the preparation disclosed by the invention can realize rapid and complete drug release in vitro (the dissolution rate within 30 minutes is greater than or equal to 98%), the relative bioavailability of olmesartan in vivo can be improved by at least 180% compared with that of a reference preparation, and meanwhile, the eutectic structure ensures that the preparation has excellent chemical stability under an accelerated test condition. The invention provides an innovative solution for the development of an efficient and stable olmesartan medoxomil preparation.
Owner:ZHEJIANG NUODE PHARM CO LTD

A two-component thermal conductive gel with high thermal conductivity, low viscosity, and high thixotropy

The present invention discloses a two-component thermal conductive gel with high thermal conductivity, low viscosity and high thixotropy. The modifier and the treating agent are respectively suitable for forming an intermolecular force network structure of polar molecules in the system of the thermal conductive component A and the gel component B, which is beneficial to the improvement of the thixotropy of the thermal conductive component A and the gel component B and the improvement of the room temperature storage stability. By compounding the linear isopropenyl-terminated silicone oil and the cyano-terminated silicone oil, and through the interaction with the modifier and the treating agent of the present invention respectively, the thixotropy and the room temperature stability of the A and B components are further improved. The two-component thermal conductive gel of the present invention has the properties of high thermal conductivity, low viscosity and high thixotropy, can resist sedimentation and phase separation at room temperature during storage, is high temperature resistant, and can be used at 200 °C.
Owner:HEXENE ELECTRONIC TECH (JIANGSU) CO LTD

Reworkable folding screen protective film and preparation method thereof

The invention discloses a foldable screen protective film capable of being reworked and a preparation method thereof, the protective film comprises an HC layer, a silica gel layer, an optical adhesive layer and an isolation layer, and the optical adhesive layer is obtained by coating optical adhesive and then curing. The optical adhesive comprises the following raw material components in parts by weight: 60-90 parts of alkyl (meth) acrylate, 5-25 parts of a polar monomer A, 1-10 parts of tackifying resin, 0.02-2 parts of a photoinitiator and 0.01-1 part of a curing agent. The prepared protective film has reliable bending resistance and good reworkability, the peel strength of the protective film is improved through the (methyl) acrylate tackifying resin added into the optical adhesive layer, and the reliable bending resistance of the protective film is guaranteed. The polar monomer A containing ether bonds can increase intermolecular acting force, improve creep recovery performance and reduce sacrifice of chemical crosslinking to peel strength, meanwhile, a plurality of hydrophilic groups enable the protective film to be easily peeled off when ethanol is wiped, and the protective film is endowed with good reworkability.
Owner:TAICANG SIDIKE NEW MATERIALS SCI & TECH CO LTD +2

Directed evolution for membrane development in three dimensions

A method of directed evolution for developing a membrane includes using a 3D protocol to simulate particle trajectories and determine the effect of intermolecular forces on particle capture performance during membrane filtration to determine the effectiveness of different candidate membranes in optimizing performance.
Owner:RENESSELAER POLYTECHNIC INST

Composite particles, method for producing composite particles, fluororesin-containing particles, method for producing fluororesin-containing particles, and nanoparticle complex-containing sheet

The purpose of the present invention is to provide composite particles having nanoparticles that are excellent in terms of weather resistance. Composite particles according to an embodiment of the present invention each include at least one nanoparticle complex and an aggregate of a plurality of functional particles. The nanoparticle complex is present inside an aggregate structure that is formed of the aggregate of the functional particles, and the nanoparticle complex is held inside the aggregate structure by intermolecular force between the nanoparticle complex and the functional particles.
Owner:SHOEI CHEM IND CO LTD

Chitosan electrospinning liquid and preparation method thereof

The application relates to the technical field of biological materials, and discloses a chitosan electrostatic spinning liquid and a preparation method thereof, which comprises the following steps: preparing chitosan through a homogeneous deacetylation method; and preparing the chitosan electrostatic spinning liquid. The preparation method of the chitosan electrostatic spinning liquid is simple and mild, the crystallinity and the intermolecular force are reduced through the mode of reducing the deacetylation degree and the molecular weight of chitosan, the concentration and the spinnability of the pure chitosan spinning stock solution can be improved, and the pure chitosan nanofiber can be successfully prepared.
Owner:JIHUA LAB +1

A simulation method for analyzing the changes in flame retardant properties of polymer insulation materials during aging based on intermolecular forces

This invention provides a simulation method for analyzing changes in the flame retardant properties of polymer insulation materials during aging based on intermolecular forces. The method involves three aspects: 1) simulating and analyzing microscopic parameters related to intermolecular forces during the aging process of polymer insulation materials; 2) analyzing the evolution of intermolecular forces during the aging process of polymer insulation materials; and 3) establishing a structure-activity relationship between intermolecular forces and flame retardant properties of polymer insulation materials. This method provides theoretical guidance for understanding the influence of intermolecular forces on the properties of polymer insulation materials during aging.
Owner:CHINA UNIV OF MINING & TECH

Ion exchange membrane as well as preparation method and application thereof

The invention relates to the technical field of polymeric membranes, in particular to an ion exchange membrane and a preparation method and application thereof. The ion exchange membrane provided by the invention is obtained by reacting polyarylether containing pyridyl and cyano with a protonation reagent. Polyarylether containing pyridyl and cyano is adopted as a raw material, the polymer is endowed with alkaline sites by utilizing the pyridyl, the pyridyl is subjected to protonation by soaking in a protonation reagent, the protonated pyridyl is generated, and the ion exchange membrane is endowed with high proton conductivity. Moreover, the strongly polar cyano group can enhance the acting force between molecular chains and improve the rigidity of the molecular chains to inhibit swelling of the membrane, so that the chemical stability and the dimensional stability of the ion exchange membrane material are improved, and meanwhile, the mechanical property of the ion exchange membrane material can be improved. The ion exchange membrane has a wide application prospect in flow batteries such as a vanadium flow battery and an iron-chromium flow battery.
Owner:SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY

Nano-porous flexible aerogel for ultra-wideband wireless communication and preparation method of nano-porous flexible aerogel

The invention belongs to the field of organic high-molecular compounds and preparation and chemical processing thereof, and provides nano-porous flexible aerogel for ultra-wideband wireless communication and a preparation method of the nano-porous flexible aerogel. The aerogel is composed of a polyimide base material and an air phase distributed in the polyimide base material, and the polyimide base material is of a nanopore structure. The polyimide matrix material is formed by carrying out chemical crosslinking and chemical imidization of a crosslinking agent on linear polyamide acid formed by carrying out copolymerization reaction on a dianhydride monomer containing fluorine and xanthene and a diamine monomer, and assembling molecular chains subjected to chemical imidization through intermolecular acting force; the pore diameter of the nanopore structure does not exceed 100 nm, and the porosity of the aerogel is 89%-92%. According to the invention, the interface reflection, scattering and absorption of the existing aerogel on electromagnetic waves can be reduced, the loss of the electromagnetic waves in the transmission process is reduced, and the aerogel can realize efficient wave transmission and transmission of the electromagnetic waves in the frequency bands of beat Hertz, terahertz and gigahertz.
Owner:SICHUAN UNIV

An all-organic perovskite material and its preparation method

This application relates to the technical field of perovskite materials, and provides an all-organic perovskite material and a preparation method thereof. The structural general formula is ABX3, where A is a divalent cation containing a pyridine ring, B is N2H5 + , and X is a halogen anion and / or a pseudohalogen anion. For the all-organic perovskite material provided by this application, with the structural general formula of ABX3, based on the molecular structure of the existing perovskite materials, by using a divalent cation containing a pyridine ring to replace the organic cation, a divalent cation containing a pyridine ring is introduced at the A position to increase the intermolecular force within the all-organic perovskite material. At the same time, N2H5 + is used to replace the ammonium ion in the existing perovskite materials to enhance the hydrogen bond force, which can significantly reduce the band gap of the all-organic perovskite material of this application, so that the light absorption can extend to the long-wave ultraviolet or even the visible light region. Therefore, the novel all-organic perovskite of this application has good application prospects in the field of narrow-bandgap optoelectronics.
Owner:SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Quercetin composite nanoparticle, and preparation method and application thereof

The invention belongs to the technical field of nano pharmacy, and particularly relates to a quercetin composite nano particle as well as a preparation method and application thereof. The quercetin composite nanoparticle comprises quercetin and an amphiphilic molecule, and the quercetin and the amphiphilic molecule are combined through an intermolecular force. In order to solve the problem that the bioavailability and the administration mode of quercetin are limited by the hydrophobic property of quercetin, the problem of toxic and side effects of a traditional solubilization technology (such as an organic solvent and a surfactant) is solved by preparing the stably dispersed quercetin composite nanoparticles, and a new path is provided for development of quercetin as a clinical candidate drug.
Owner:XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV

Method for removing aristolochic acid I by adopting acid-base amphoteric compound

The invention discloses a method for removing aristolochic acid I by using an acid-base amphoteric compound, which utilizes the characteristic that the acid-base amphoteric compound simultaneously carries positive and negative charges in a specific pH environment to specifically bind with aristolochic acid I through multiple intermolecular forces such as electrostatic interaction, hydrogen bond, hydrophobic effect and the like to form a stable insoluble compound. Further, the aristolochic acid I is removed or neutralized. The selectivity of the adsorbent is far higher than that of a traditional non-specific adsorbent, the influence on other components in a sample is extremely small, and the removal rate reaches 85% or above; most of the selected acid-base amphoteric compounds have good biocompatibility and low toxicity, that is, the biosafety is good; the method also has the characteristics of pH response intelligence (the removal or neutralization effect can be regulated and controlled through the pH of a medium environment), high specificity (targeted neutralization of aristolochic acid I and extremely small damage to other effective components and nutrients in medicinal materials or food), wide application scenarios and the like.
Owner:YUTIAN (HAINAN) MEDICINAL BIOLOGICAL BREEDING CO LTD

Flexible metal-organic hybrid halide with full-phosphorescent optical waveguide characteristic and preparation method and application thereof

The invention discloses a flexible metal-organic hybrid halide with full-phosphorescence optical waveguide characteristics and a preparation method and application thereof. According to the invention, a pyridine derivative and cadmium chloride are self-assembled to synthesize a novel metal-organic hybrid halide material. By regulating the intermolecular acting force of the metal-organic hybrid halide crystal, the elastic deformation and plastic deformation of the material can be respectively realized by utilizing the buffer layer and the molecular slippage region. Meanwhile, due to the rigidity of a molecular aggregation structure, the material shows obvious full phosphorescence emission. The flexible metal-organic hybrid halide prepared by the invention is mechanically stripped, and a multi-channel optical waveguide can be realized in a single crystal. The invention not only shows the mechanical flexibility of the metal-organic hybrid halide, but also develops a multi-channel active full-phosphorescence optical waveguide material by utilizing a molecular slippage region of a crystalline material, and has wide application in the fields of optical information communication and the like.
Owner:BEIJING NORMAL UNIVERSITY