827 results about "Supermolecule" patented technology

The invention relates to the technical field of fluorescence sensing, in particular to a preparation method and application of an Nd (III)-based hydrogen bond organic framework crystalline material. According to the Nd (III)-based hydrogen bond organic framework crystalline state material, Nd (III) serves as a central metal ion and is coordinated with 9 oxygen atoms, and adjacent Nd (III) are connected through H2 (4-CPCA) ligands to form a one-dimensional chain structure. One-dimensional chains are bridged through H2 (4-CPCA) ligands to form a two-dimensional double-layer planar structure, and two-dimensional surfaces are further stacked through the interaction of a large number of intermolecular hydrogen bonds to form a three-dimensional supramolecular structure. The Nd (III)-based hydrogen bond organic framework crystalline material has good fluorescent property and stability, and can be applied to the field of fluorescence sensing.

The invention provides a hydroxytyrosol supramolecular compound and a preparation method and application thereof, and belongs to the technical field of cosmetics and biological medicine, the supramolecular compound comprises the following chemical components by mass: 0.01-10% of hydroxytyrosol, 2-45% of an amino acid compound, 2-20% of alpha hydroxy acid, 2-30% of urea, and 15-92% of water. The supramolecular compound can promote transdermal delivery of hydroxytyrosol and maintain the biological activity of hydroxytyrosol, shows high biocompatibility, and can be applied to product development in the antibacterial field, the regeneration field and the anti-aging field.

The invention discloses an inorganic-organic hybrid compound crystal and a preparation method thereof, and belongs to the technical field of organic-inorganic hybrid materials. The preparation method comprises the following steps: mixing raw materials containing hydroiodic acid, organic cage molecules RCC3 and a lead source with a solvent, and carrying out solvothermal reaction to obtain the inorganic-organic hybrid compound crystal. The chemical formula of the prepared inorganic-organic hybrid compound crystal is ({H18 [C72H108N12] 2 [(Pb10I36)]}. 2I), wherein [C72H108N12] is RCC3 acidified by hydroiodic acid, the crystal has a supramolecular three-dimensional structure assembled by a [Pb5I8] 3-anion cluster unit and a protonated RCC3 molecular cage through electrostatic and hydrogen-bond interaction, and belongs to a monoclinic system, and the space group is P21. The crystal structure is a metal halide-based organic-inorganic hybrid crystal constructed by taking an organic molecular cage as nitrogen-containing cations and lead iodide for the first time.

The present invention relates to the field of oilfield chemical technology, and proposes a fast-soluble hydrophobic associating polymer for reinjection water for fracturing and a preparation method thereof. Hydrophobic functional monomers and non-ionic polarity regulators are prepared into polymerizable hydrophobic associating micelles, and the polymerizable hydrophobic associating micelle solution and conventional monomer aqueous solution are mixed. The molecular weight of the copolymer is regulated by a molecular weight regulator, and the fast-soluble hydrophobic associating polymer for reinjection water is obtained after reaction, granulation, drying and crushing. It comprehensively utilizes the synergistic effect of the multi-component supramolecular forces of the ternary hydrophobic functional monomers to achieve stability regulation of the associating micelles, and obtains a three-dimensional network structure of salt-resistant polymers with a dense associating network and a strong associating effect; introduces a polarity regulator containing a non-ionic hydrophilic structure, and utilizes self-assembly to form a hydration layer on the surface of the associating micelles, thereby weakening the water-phase aggregation effect and ion shielding effect of the hydrophobic structure, which is beneficial to the stretching of the molecular chain in the water phase, and obtaining the online mixing and fast-dissolving efficiency of the reinjection water, and having both high salt resistance and strong sand carrying performance.

The invention provides an enzyme response type supramolecular PDRN-mini ECM liposome and a preparation method and application thereof.The enzyme response type supramolecular PDRN-mini ECM liposome comprises phospholipid, a membrane stabilizer, a supramolecular compound and an emulsifier, a water phase formed by the supramolecular compound and the emulsifier serves as an inner core, and the supramolecular compound is formed by PDRN and mini ECM through intermolecular acting force; the mini ECM is formed by self-assembly of collagen peptide, elastin and hyaluronic acid. The supramolecular PDRN-mini ECM liposome with uniform particle size and good stability is obtained through a microfluidic technology, the process is simple, the controllability is high, and amplification is easy.

The invention relates to the technical field of cosmetic functional raw material preparation methods, in particular to a plant extract and an extraction method and application thereof. The invention provides a plant extraction method, which comprises the following steps: adding a glycol ether or polyhydric alcohol solvent containing 5-7 carbon atoms into a product containing phenolic acid compound components and lignan compound components, carrying out homogeneous reaction, carrying out heating extraction, and collecting the extract. By adopting a supramolecular technology, phenolic acid compound components can form a supramolecular solvent with glycol ether or polyol solvents containing 5-7 carbon atoms, and the supramolecular solvent is further combined with lignan compound components to form a supramolecular structure, so that the stability of an extracting solution is remarkably enhanced, the specific enrichment of the lignan compound components is realized, and the specific enrichment of the lignan compound components is realized. The problems that an existing extraction technology is poor in stability, poor in formula applicability, not prominent in effect and the like are successfully solved.

The application provides a preparation method of a self-coiled structure molybdenum disulfide / nitrogen-doped porous carbon composite material, a product and application, high-content nitrogen-doped porous carbon material is synthesized by inducing dicyandiamide molecules to undergo a supramolecular self-assembly process, and on this basis, a hydrothermal reaction is carried out to coat molybdenum sulfide sheet layer material on the surface, and finally, a self-heating coiling treatment is carried out to form a carbon-based electrocatalyst of the self-coiled structure molybdenum disulfide / nitrogen-doped porous carbon. Compared with a high specific surface area carbon-based catalyst, high doping concentration of nitrogen atoms can provide more electron-rich properties to facilitate the adsorption of substances, and the self-coiled carbon-based material can exhibit very excellent electrochemical performance, especially in the aspect of electrochemical hydrogen production. The preparation method is simple in operation, low in preparation cost and suitable for large-scale production.

The invention discloses a simple preparation method of a barium-based metal organic framework (Ba-H2Sip) and proton conduction application of the barium-based metal organic framework (Ba-H2Sip), belongs to the field of functional material synthesis and energy application, and is characterized in that functional differentiation design of a 5-sulfoisophthalic acid ligand: a sulfonic group forms a two-dimensional layered structure by chelating Ba < 2 + >; the carboxyl groups are differentiated into'anchoring carboxyl groups' for constructing a three-dimensional supramolecular skeleton and'proton supply carboxyl groups' for providing a proton source, and the design is reported for the first time in Ba-based MOFs; according to the present invention, the large-scale preparation can be achieved by stirring the low-cost raw material in 1 mol / L hydrochloric acid at the room temperature, the yield exceeds 70%, the product can resist 8 M acid and pH = 13 alkali liquid, the conductivity at 90 DEG C / 90% humidity can achieve 1.39 * 10 <-2 > Scm <-1 >, the high-temperature process is not required, the raw material is low in cost and easy to obtain, and the feasible scheme is provided for the high-efficiency proton conductor industrialization.

The invention relates to the technical field of cosmetics, in particular to a preparation method and application of a supramolecular solvent containing puerarin. The supramolecular solvent containing puerarin comprises puerarin, a hydrogen bond donor and a hydrogen bond receptor, the molar ratio of the hydrogen bond donor to the acceptor is (1-3): (1-2). The puerarin-containing supramolecular solvent formed by using weak interaction force such as hydrogen bonds can effectively solve the problems that puerarin is easy to separate out in the product and poor in transdermal absorption and the like, and meanwhile, the puerarin-containing supramolecular solvent can synergistically promote the effect of puerarin in the oil-control acne-removal product. Cosmetics prepared by adopting the supramolecular solvent prepared by the invention have good oil control and soothing effects, and the preparation process is simple, large-scale production is easy, and the properties are stable.

The present invention relates to a preparation method and application of a supramolecular aggregate surfactant, and belongs to the field of supramolecular coordination chemistry, surface modification engineering and hydrophobic coating technology. In the present invention, 4-hydroxypyridine-2,6-dicarboxylic acid and malonic acid prepare an adhesive ligand, and with the help of the coordination of the carboxyl structure and lanthanum ions on 4-hydroxypyridine-2,6-dicarboxylic acid and perfluorooctanoic acid, a supramolecular aggregate in a nano-aggregated state is obtained, which is self-assembled into a supramolecular aggregate surfactant. The active agent can solubilize fluoride and can also be applied in the field of hydrophobic coatings. The coating has the characteristics of imitating lotus leaf structure and hydrophobic wax, and has good hydrophobic properties.

The invention discloses a tripterine-sophocarpidine self-assembled nanoparticle and application thereof in preparation of an anti-tumor drug, and belongs to the field of biological medicine. The nanoparticles are formed by self-assembly of the tripterine and the sophocarpidine through supramolecular interaction, the molar ratio of the tripterine to the sophocarpidine is 1: 1-1: 3, and the self-assembly system effectively solves the problems of low Cst solubility, poor bioavailability, rapid in-vivo removal and the like; the inhibition effect on triple negative breast cancer (TNBC) is remarkably enhanced through the synergistic effect of Cst and Mar, and a new strategy is provided for expanding the application of a traditional Chinese medicine carrier-free self-assembly nano drug delivery system in the anti-tumor field.

The invention discloses a self-classification driven supramolecular dimer as well as a preparation method and application thereof. According to the supermolecule composite material, cucurbit [8] uril serves as a subject, a phenylpyridinium derivative G serves as an object, and a small-size supermolecule dimer with red / near-infrared delayed emission is formed through subject-object inclusion interaction and a self-classification strategy. The supramolecular dimer structure inhibits distorted intramolecular charge transfer (TICT) and promotes space charge transfer (TSCT), enabling red thermally activated delayed fluorescence (in some embodiments, 620 nm) and near infrared phosphorescence (in some embodiments, 740 nm) of simple organic small molecules. The proposed synergistic supramolecular strategy provides a new way for realizing simple red / near-infrared delayed emission of small organic molecules in a water phase, and has potential application value in the fields of biological materials and the like.

The invention relates to the technical field of nuclear waste treatment, in particular to a cucurbituril-based supramolecular organic framework material as well as a preparation method and application thereof. A construction unit of the supramolecular organic framework material is constructed by taking cucurbit [8] uril (CB8) as a subject and terephthalyl viologen ligand 1, 1 ''-(1, 4-phenylene) bis ([4, 4 '-bipyridyl]-1-onium) salt (PBV. 2X) as an object through the bonding effect of the subject and the object; in the molecular structure of the supramolecular organic framework material, the construction units are staggered and stacked in parallel in the space, and NO3 <-> is located at the gap of the adjacent CB8. The supramolecular organic framework material disclosed by the invention has high structural stability and cationic framework characteristics, and a rigid framework and a pyridine conjugated system of CB8 endow the material with excellent chemical / irradiation stability, so that the material shows ultrahigh removal rate on ReO4 <-> / TcO4 <-> in extreme environments (strong acid, strong alkali and high irradiation).

The invention discloses a hypoglycemic composition containing supramolecular group composite peptide. The hypoglycemic composition comprises collagen peptide, soybean peptide, bitter gourd peptide, bamboo leaf flavone, L-carnitine and the like. The composition prepared by selecting raw material components of specific types and dosages has the effects of remarkably reducing the glucose level and increasing the insulin level, and part of the composition can also cooperate with metformin to achieve the effects of enhancing the effect of reducing blood sugar and improving or preventing type 2 diabetes mellitus. Therefore, the method can be used for developing functional foods and medicines and has a considerable market prospect.

The invention relates to a poly (deoxyribonucleotide) self-assembled supramolecular nanoparticle composition, a preparation method and application thereof and cosmetics, the poly (deoxyribonucleotide) self-assembled supramolecular nanoparticle composition comprises PDRN and mussel protein, and the mass ratio of the PDRN to the mussel protein is 1: (0.05-10). The PDRN-mussel protein self-assembled supramolecular nano-particles have the beneficial effects that the PDRN-mussel protein self-assembled supramolecular nano-particles are prepared by utilizing the inherent charge properties of PDRN and mussel protein, so that the microscopic sizes of the PDRN and mussel protein are compressed, the transdermal absorption of the PDRN and mussel protein is greatly improved by utilizing the properties of the nano-particles, and a synergistic repairing effect is shown.

The invention discloses a non-noble metal ORR catalyst and a preparation method thereof, and belongs to the technical field of electro-catalysis. The method comprises the following steps: (1) adding 5, 10, 15, 20-tetra (4-cyanophenyl) porphyrin and nickel salt into an organic solvent, and synthesizing a supramolecular crystal precursor UPC-S7 through solvothermal reaction; (2) carbonizing the supramolecular crystal precursor UPC-S7 in an inert atmosphere to obtain a Ni-coated NC material; (3) oxidizing the Ni-coated NC material in an oxygen-containing atmosphere to obtain a Ni / NiO-coated NC material; and (4) sequentially soaking and etching the Ni / NiO-coated NC material by using a nitric acid solution and an ammonia water solution, and then washing and drying to obtain the non-noble metal ORR catalyst. The prepared catalyst does not contain precious metal such as platinum, the raw material cost is remarkably reduced on the basis of ensuring the ORR activity and stability of the catalyst, and a new scheme is provided for solving the cost bottleneck of a fuel cell.

The invention relates to the technical field of aquatic product preservation, and discloses a natural eutectic solvent for maintaining the quality of frozen penaeus vannamei boone and application, the natural eutectic solvent is composed of choline chloride, sorbitol and water, the molar ratio of choline chloride to sorbitol is (1-5): (1-5), and the mass of water is 15-25% of the total mass of choline chloride and sorbitol. The invention also provides an application of the solvent, and the application comprises the following steps: soaking the penaeus vannamei meat in the solvent, and then freezing and storing the penaeus vannamei meat. A supramolecular network system is constructed through hydrogen-bond interaction between choline chloride and sorbitol, growth of ice crystals in the freezing storage process is inhibited, a protein structure is stabilized, and loss of unfrozen juice is reduced, so that the quality of the penaeus vannamei, such as texture, color and flavor, is maintained. The natural deep-eutectic solvent is natural and safe in component, low in heat, simple to prepare and convenient to apply, the application limitation of a traditional anti-freezing agent is solved, and the natural deep-eutectic solvent has a good industrial prospect.

The invention relates to the technical field of microelectronic devices, in particular to a single-molecule memristor-rectifier device based on supramolecular assembly and a preparation method thereof. According to the preparation method, the guest molecule B is covalently connected with the tail end of the graphene electrode pair, so that stable and tight interface bonding between the supramolecular functional molecule and the electrode can be ensured; and then soaking the graphene electrode pair connected with the guest molecule B in a solution containing the host molecule A and the guest molecule C to form a supramolecular functional molecule between the graphene electrode pair. The guest molecule C in the supramolecular functional molecule has intrinsic oxidation-reduction activity, and the molecular structure of the guest molecule C can generate a reversible electron gain and loss process, so that controllable and reversible adjustment of charge distribution in the molecule is realized. Under the action of an electric field, through the reversible oxidation-reduction reaction of the guest molecule C, significant changes of intramolecular charge distribution and electron transmission characteristics are triggered, and finally reliable switching of high and low resistance states of the device is achieved.

The application relates to the field of supramolecular chemistry and discloses a dendrimer supramolecular gel factor and application thereof. The molecular structure of the gel factor is a polybenzyl ether dendrimer modified by peripheral halogen atoms (chlorine, bromine or iodine). The gelation performance of the gel factor can be precisely controlled by changing the type, substitution number and position of the peripheral halogen, and the type and generation of the dendrimer. The dendrimer gel factor provided by the application has very excellent gelation performance. The dendrimer gel factor can effectively gelate in dozens of solvents such as polar solvents, non-polar solvents and mixed solvents containing water, and the minimum gelation concentration CGC is 1.5 mg / mL, belonging to a super gel factor. In addition, the gel factor has a simple preparation method and high yield, and is very suitable for being developed into a general and commercial supramolecular gel factor and applied to the preparation of various soft material functional materials.

The invention relates to the technical field of single-molecule devices, in particular to a single-molecule device for detecting small-molecule gas based on supramolecules and a preparation method of the single-molecule device. The monomolecular device comprises a functional molecule and a graphene electrode pair, wherein the functional molecule is connected between the graphene electrode pair through an amido bond. A cucurbituril hydrophobic cavity structure in the functional molecular structural formula can contain and capture target small molecular gas, gas molecules of different volumes are selectively included through multiple weak interaction, a dynamically-adjustable subject-object compound structure is formed, and then switching type sensing detection on the small molecular gas is achieved. The amino terminal of the end part of the main bridging unit in the functional molecule can be connected with the carboxyl terminal of the graphene point electrode in a covalent bond manner, and amide condensation molecular chain connection is formed at the two ends of the graphene point electrode, so that the stability of a monomolecular device is improved. The preparation method provided by the invention is simple in process, mild and controllable in reaction condition and beneficial to large-scale production.

Provided herein are peptide amphiphiles (PAs) comprising a bioactive peptide, nanofibers displaying the bioactive PAs, and methods of use thereof. The disclosed peptide amphiphiles comprise a hydrophobic tail, a structural peptide segment, a charged peptide segment, and a bioactive IKVAV peptide. The disclosed PAs may be used in cell culture methods and in methods of treating central nervous system injury.

The present invention relates to a supramolecular self-assembly system, comprising the following ingredients:(2) one or more carriers (or building blocks), which are water-soluble or at least soluble under pH≤8 conditions, where at least one carrier is amphiphilic with a hydrophobic group and a hydrophilic group; and(3) one or more targets, preferably the targets are active ingredients such as drugs, diagnostic agents, biomarkers, vaccines, nutrients, or cosmetic active ingredients, and preferably in a free, salt, hydrate, or solvate form.

The invention discloses a stable supramolecular collagen hyaluronic acid body as well as a preparation method and application thereof. The preparation method comprises the following steps: firstly, constructing a supramolecular solvent system by taking betaine as a hydrogen bond receptor and taking polyol / sodium hyaluronate as a hydrogen bond donor, and preparing the stable supramolecular collagen hyaluronate from the supramolecular solvent and lipidosome colostrum prepared from lecithin, cholesterol, ceramide, collagen, polyol and water. According to the invention, collagen and sodium hyaluronate are not in direct contact in space in a form of lipidosome wrapping, the problems that flocculent precipitates are easily generated and the system is unstable when collagen and sodium hyaluronate are commonly used can be solved, and a dual delivery system formed by the supramolecular solvent and lipidosome has excellent human body permeability and efficacy.

The invention discloses construction of ROS response type self-delivery carrier-free nanoparticles and application of the ROS response type self-delivery carrier-free nanoparticles in breast cancer treatment, firstly, a TLR agonist R848 synthesizes a dimer TKdR through an ROS sensitive bond in one step, then the dimer TKdR and a free photosensitizer Ce6 are co-assembled to form a nano self-assembly body (psTKdR NAs), and an R848 dimer-based photoactivatable supramolecular self-assembly multi-drug delivery system is constructed, pDT can effectively induce ICD to stimulate an autoimmune system, meanwhile, Ce6 can generate ROS under activation of specific light and further induce breakage of TK to release drugs, and R848 can drive cellular immune response and cause polarization of M1 macrophages and is used for tumor immunotherapy. The ROS-responsive intelligent prodrug is designed and introduced into the construction of a nano system, so that the stability of the drug and the sensitivity of a disease site can be improved, and the synergistic curative effect of an intelligent drug delivery system or a traditional drug combination therapy is expected to be realized.

An organometallic compound is provided which includes a central metal atom; and organic ligands capable of forming polydentate bonds to the central metal atom. Related methods and articles having a metal carbide coating are also provided.

The application discloses oligomerization degree carbon nitride nanosheet containing partial supramolecular chains and a preparation method and application of photocatalytic decomposition of water to simultaneously produce hydrogen and oxygen, and the preparation method comprises the following steps: adding melamine and cyanuric acid into a solvent, stirring after ultrasonic treatment, and drying to obtain supramolecular precursor powder; and calcining the supramolecular precursor powder to obtain oligomerization degree carbon nitride containing partial supramolecular chains. The application retains partial supramolecular oxygen-containing structures to optimize adsorption and dissociation of oligomerization degree carbon nitride nanosheet and water molecules at a reaction liquid interface, realizes high H and OH enrichment of a local environment, and promotes performance improvement of photocatalytic complete decomposition of water.

The invention relates to the technical field of papermaking and food packaging materials, in particular to a preparation method of full-degradable plastic-substituted high-strength food packaging paper. Preparing a fiber layer by taking plant fiber as a base material; the preparation method comprises the following steps: grafting a methyl methacrylate-butyl acrylate block copolymer on nano-cellulose through an atom transfer radical polymerization technology to prepare enhanced nano-cellulose; dialdehyde starch rich in aldehyde groups and chitosan are subjected to a Schiff base reaction to form a dynamic cross-linked network, polylactic acid microspheres modified by beta-cyclodextrin are introduced to serve as supramolecular enhancement units, and functional coating liquid is prepared; and finally, coating the functional coating liquid on the fiber layer, and drying, cross-linking and curing to obtain a finished product. Through cooperation of chemical grafting, dynamic covalent bonds and supramolecular action, the packaging paper is endowed with extremely high strength and toughness and excellent oil and moisture resistance and heat sealability, meanwhile, it is ensured that the packaging paper can be completely biodegraded in the natural environment, and functional replacement of traditional plastic packaging is successfully achieved.

The invention discloses a supramolecular phase change material for long-term storage and controllable release of heat energy as well as a preparation method and application of the supramolecular phase change material. Ethyl pillar [5] arene is subjected to vacuum activation, and the obtained activated supramolecular phase change material shows controllable heat energy release in a thermal cycle process; and the stored heat energy can be released only by heating again. In addition, heat absorbed in the melting process can be stored at room temperature for more than 180 days, so that long-term storage is realized. The phase change material has the characteristics of high latent heat energy density, controllable and switchable heat energy release, long heat storage time, heat stability and the like, and has great attraction in the field of heat energy. Meanwhile, the synthesis process is simple to operate and low in equipment requirement; higher latent heat and controllable heat energy release are realized; the heat energy storage time is long.

The invention provides low-ash low-sulfur vehicle lubricating oil and a preparation method thereof, and belongs to the technical field of lubricating oil. According to the invention, an amphiphilic molecular structure is generated through modified polyisobutylene succinic anhydride and polyamidoamine, a supramolecular ordered film is formed through self-assembly, combustion products and carbon deposition particles are captured, and ash content and sediment generation are reduced, so that the performance requirements of low-ash-content and low-sulfur lubricating oil are met; the reversible reaction of N-(2-aminoethyl) maleimide and 2, 5-bis (aminomethyl) furan is adopted to endow molecular broken bond-recombination self-repairing capability, and micro cracks of a lubricating system are repaired; for the anti-wear agent, UV / O3 is adopted to activate MXene, and multi-step modification of tributyl borate and fluoroalkyl silane is combined, so that the lubricating oil is endowed with low friction coefficient, high thermal stability and excellent dispersing performance, lasting lubrication and effective protection are provided under high-temperature and high-pressure conditions, and lasting lubrication protection under extreme working conditions is realized.

The invention discloses a fluorescent probe for detecting spermine and spermidine in a water sample and urine as well as a preparation method and application of the fluorescent probe, and relates to the technical field of supramolecular fluorescent probes, and the fluorescent probe is formed by reacting 14-membered cucurbit urils (tQ [14]) and a compound (E)-1-(4-boron benzyl)-4-(4-hydroxyl styryl) quinoline-1-ammonium bromide according to a molar ratio of 1: 1. The novel fluorescent probe provided by the invention can specifically detect spermine and spermidine in a water sample and urine, and the preparation method of the fluorescent probe is simple and easy to implement; the method for detecting spermine and spermidine in a water sample and urine by using the fluorescent probe has the advantages of high sensitivity, high selectivity, low cost, simple sample treatment, convenient operation, rapid determination and the like.