301 results about "Intermolecular interaction" patented technology

The present invention relates to a novel organometallic compound, and more particularly, to a luminescent organometallic compound in which intermolecular interaction is inhibited by means of introducing a germanium substituent, thereby improving light-emitting characteristics. The present invention also relates to an organic electronic device, specifically, to an organic light-emitting diode using the compound. According to the present invention, a germanium substituent is introduced to the parent organometallic iridium compound, thus inhibiting an intermolecular interaction in the solid state and enabling the compound of the present invention to be effectively used in solution processing. When the compound of the present invention is used as part of a light-emitting layer of an organic light-emitting diode, the light-emitting efficiency of the light-emitting diode may be significantly improved. Therefore, the compound of the present invention may be effectively used as a material for an organic light-emitting diode.

The invention discloses a sodium alginate-acrylamide composite aquagel. The preparation method comprises the following steps: 1) proportionally dissolving sodium alginate and acrylamide in water, and uniformly mixing; 2) sequentially adding a crosslinking agent and an initiator, carrying out vacuum degassing treatment, and adding a catalyst; and 3) transferring the obtained mixed solution into a glass mold, and heating to react, thereby obtaining the sodium alginate-acrylamide composite aquagel. The sodium alginate-acrylamide composite aquagel has favorable multivalent ion adsorption capacity and biocompatibility. By combining the polyacrylamide network with the graft copolymerization action of the sodium alginate and acrylamide, the mechanical properties of the aquagel are effectively enhanced. The aquagel is sensitive under the condition of different pH values, can generate intermolecular interactions with multiple cationic dyes and heavy metal ions, and is applicable to the fields of chemical substance adsorptive separation, sewage treatment and the like.

In one embodiment of the present invention, a novel fused polycyclic aromatic compound of the present invention is (a) a compound including a benzodichalcogenophenobenzodichalcogenophene (BXBX) skeleton further having an aromatic ring(s) located outside the BXBX skeleton, or (b) a compound including a BXBX skeleton in which a benzene ring is substituted with a heterocyclic ring. The compound can strengthen intermolecular interaction due to greater π electron orbits. This improves an electron field effect mobility of an organic semiconductor device that is manufactured by use of the compound as an organic semiconductor material. Further, since the number of fused rings included in the compound is small, the compound does not cause problems that generally occur in compounds having an extremely large number of fused rings, i.e., poor solubility in solvent and poor atmospheric stability due to high affinity to oxygen. As a result, the fused polycyclic aromatic compound of the present invention can be preferably used as an organic semiconductor material.

The invention relates to a molecular compound surfactant and a preparation method thereof. The molecular compound surfactant respectively comprises the following components and weight percent thereof: 20 to 40 of petroleum sulfonate surfactant, 6 to 30 of surfactant, 5 to 10 of high molecular modifier, 1 to 5 of viscosity reducer, 1 to 5 of additive and water added to 100. The preparation method comprises the following steps that: the petroleum sulfonate surfactant, the surfactant, the high molecular modifier, the viscosity reducer, the additive and the water are added into a reactor with a stirring device according to the weight ratio and are stirred at room temperature for 1.5 to 2.5 hours so as to obtain a finished product. The compound surfactant is prepared by utilizing a plurality of associations of structure complementary and good compatibility as well as the mechanism of intermolecular interaction of the surfactant of a plurality of association and active components with complemental structure and well matching, and the system has the properties of high-temperature resistance, salt resistance, high-viscosity resistance, ultra-low interfacial tension and the like, conforms to the requirement of environmental protection and can obviously enhance the recovery ratio of crude oil after being used for the oil displacement of tertiary oil recovery.

The invention relates to a method for identifying in a sample molecules with the capacity to bind to the different members of a molecule library, wherein the molecules which are in the sample are fractionated based on a physicochemical property of the sample and subsequently transferred from the support in which said molecules have been separated to a second support in which the different members of the molecule library are grouped into microarrays such that they uniformly coat the surface of the support. This technique is especially interesting for the identification in a sample of glycoproteins with affinity for a lectin library as well as for the identification of compounds capable of modulating the glycosylation of proteins and for the rapid characterization of alterations in the glycosylation pattern of a sample of proteins, which can be useful in the diagnosis of diseases in which there are alterations in cell glycosylation.

The invention discloses a method for preparing functional soluble and edible compound membranes. The method is characterized in that the functional soluble and edible compound membranes are made of polysaccharides, proteins and starch and further comprises membrane-forming agents, reinforcing agents, plasticizers, cross-linking agents, antioxidants and gelatin, and the membrane-forming agents, the reinforcing agents, the plasticizers, the cross-linking agents and the antioxidants are used as auxiliary materials; the method includes steps of mixing aqueous solution, stirring and homogenizing the aqueous solution to obtain aqueous solution A or mixed aqueous solution B and allowing the aqueous solution A or the mixed aqueous solution B to stand still for standby application; carrying out heating treatment to obtain uniform thin membranes by means of flow-casting and cutting and packaging the compound membranes to obtain finished products. The method has the advantages that the functional soluble and edible compound membranes which are of porous network structures can be formed under the mutual effects of different molecules, have certain strength but are soft, can be dissolved in hot water but are moisture-resistant at normal temperature, can be subjected to heat-seal, are edible and are beneficial and harmless to the health, and the method can be widely applied to the field of food packaging.

The invention discloses supramolecular polymer clean fracturing fluid resistant to high temperature of 170 DEG C. The fracturing fluid is prepared from the following components in percentage by weight: 0.2 to 0.5 percent of thickening agent for the clean fracturing fluid, 0.1 to 0.5 percent of viscosity synergist, 0.2 to 0.4 percent of structural intensifier, 0.05 to 0.2 percent of deoxidant, 0.1 to 0.3 percent of metal ion chelating agent, 1 to 2 percent of clay stabilizer and the balance of fresh water. According to the clean fracturing fluid, a reversible supramolecular network structure is formed through the intermolecular interaction, and the thickening agent is low in use concentration and can be used for effectively controlling the viscosity of a base solution of the fracturing fluid and improving the pumping performance of the fluid; viscoelastic sand-carrying of the fracturing fluid is realized by low viscosity and high viscoelasticity; the temperature resistance can reach 170 DEG C under a long-term shear condition; the shear resistance is excellent, and the fluid viscosity and the structure after high shear can be effectively recovered; the construction friction is low, and the equipment load and the fracturing construction risk are reduced; the residue content is low, so that the damages to a reservoir stratum and prop fractures are greatly reduced, and the fracturing stimulation effect is greatly improved.

The present invention provides a method of minimizing absorption of visible light in an ink composition comprising an IR-absorbing macrocyclic cyanine dye, comprising preselecting said dye such that it includes at least one moiety for reducing intermolecular interactions between adjacent dye molecules. The method is especially suitable for use in connection with netpage and Hyperlabel systems.

The invention belongs to the field of articular cartilage repair materials, and provides a preparation method and application of high strength and porous structure polyvinyl alcohol-gallotannic acid hydrogel. The hydrogel is a potential articular cartilage replacement material. According to the preparation method, polyvinyl alcohol is adopted as a substrate material, the ice crystal forming ability of a hydrogel precursor solution is improved by introducing gallotannic acid and microbubbles, and meanwhile, the mechanical property of the hydrogel is greatly enhanced due to the intermolecular interaction between the gallotannic acid and the polyvinyl alcohol. The porous structure and high strength hydrogel is prepared at one step, the preparation process is simple, repeatability is high, theobtained hydrogel has good biocompatibility, meets a porous environment for adhesion and proliferation of cartilage cells and the mechanical property similar to natural articular cartilage, and can be applied to the field of articular cartilage replacement materials.

The present invention discloses methods for detecting the presence of a complex between a first reagent and a second reagent in solution. In particular, the invention provides methods for qualitative or quantitative detection of an analyte or its specific binding partner in complex biological samples. The invention further discloses algorithms using summary rate changes at selected wavelengths in the absorbance spectra of colloidal metal-labeled analytes or specific binding partners to identify intermolecular interactions between the analyte and its binding partner.

The invention relates to an organic second-order non-linear optical chromophore with a D-Pi-A structure and decorated by a tree-like group, and a synthesizing method and applications thereof. The chromophore of the invention introduces a thiophene ring conjugated Pi electronbridge having stronger electrical transmission capacity and containing branched chains and a tricyano pyrroline receptor having strong electron-withdrawing property; the receptor end is introduced into the tree-like decorative group, the one-order hyperpolarizability of chromophore molecules is greatly improved; the solubility and the film forming ability of the chromophore in polymer is improved, the interaction force among the molecules is reduced. The second-order non-linear optical chromophore with the following structure is doped with polymers, such as amorphous polycarbonate or polymethylmethacrylate and the like according to the mass ratio of 1:10; the electro-optical coefficient of the obtained polarized polymeric materials achieves 217pm/V; in addition, the donor and receptor of the chromophore can be introduced into a crosslinkable group, thus improving oriented stability of the chromophore in polymer, and satisfying the requirements of devices.

The present invention belongs to the field of polymer materials and biomedical engineering, and particularly relates to a polylactic acid stereo complex magnetic nanometer vesicle preparation method, which specifically comprises that: L-polylactic acid and D-polylactic acid respectively react with polyethylene glycol to synthesize two different block copolymers, then stereo compounding is performed, and nanometer magnetic particles are entrapped so as to form the polylactic acid stereo complex magnetic nanometer vesicle adopting the hydrophobic stereo composite polylactic acid as the film and having the inner layer and the outer layer being the hydrophilic polyethylene glycol chains, wherein the obtained nanometer vesicle has excellent stability due to the strong intermolecular interaction of the stereo complex, and the magnetic particles are wrapped in the compact polylactic acid film structure so as not to be easily leaked. According to the present invention, the magnetic nanometer vesicles can be used as the enhancement contrast agent in the clinical magnetic resonance imaging, and can further load drugs or biological macromolecules so as to be used as the release controlling nanometer carrier of drug or gene therapy.

The invention relates to an organic solar cell adopting weak epitaxial growth films as donors. Large-size continuous p-type organic semiconductor polycrystalline films used as an induction layer is formed and grown on the surface of a smooth conducting substrate. The difference in work functions between the valence-band level of the induction layer and of the conducting substrate is less than 0.3 eV, thereby helping to the effective transmission of hole charge. By utilizing the interaction among different molecules, a high-quality p-type organic semiconductor layer is grown in a weak epitaxial way on the surface of the induction layer, and the organic solar cell is prepared on the basis of the semiconductor layer. The invention has the advantages of overcoming the disadvantage that the roughness increase of high-temperature deposition film and the formation of pinholes cause short circuit for devices in the prior method, greatly improving the performance of the devices and reaching the energy conversion efficiency of more than 3 percent. An OVPD method utilizes carrier gas to transport nano-crystalline molecules and directly deposits and forms nano-crystals on low-temperature electrodes. The method of the invention adopts a vacuum deposition method and needs no carrier gas.

The invention discloses a S,S-dioxo-dibenzothiophene unit-containing electron donor polymer and a use thereof. The main chain of the S,S-dioxo-dibenzothiophene unit-containing electron donor polymer contains a S,S-dioxo-dibenzothiophene unit. Through Stille and Suzuki polymerization methods, a novel D-A structure conjugated polymer is constructed. The S,S-dioxo-dibenzothiophene unit has good flatness and high electronegativity. Through the S,S-dioxo-dibenzothiophene unit, the polymer has a deep HOMO energy level, strong intermolecular interaction, a high light-absorption coefficient, high mobility and high photoelectric response so that the related polymer has wide application prospects in solar cells or organic field effect transistors.

The invention discloses an oleophobic coating material, an oil-water separation functional material, a preparation method thereof and use thereof. The oleophobic coating material includes a crosslinked network structure formed by intermolecular interaction of two or more ionic compounds, and wherein at least two ionic compounds carry opposite charges. The oil-water separation functional material comprises a porous substrate and the oleophobic coating material, and the oleophobic coating material is distributed at least on a surface of the substrate and a through-hole wall. The oleophobic coating material and the oil-water separation functional material of the invention have the characteristics of super hydrophilicity, underwater super oleophobicity and low oil adhesion, and have stable performance in acid and alkali and various salt solution environments, and can be applied to the fields of the anti-oil contaminated surface, the self-cleaning surface, oil/water separation, oil-water emulsion demulsification and the like.

Method of identifying compounds that modulate intermolecular interactions between a target protein and a modifier are disclosed. Pharmaceutical composition comprising compounds that inhibit intermolecular interactions between a target protein and a modifier are disclosed. Methods of treating individual suffering from inflammatory conditions, undesirable immune responses, immunological conditions and bacterial infections are disclosed.

Belonging to the technical field of macromolecular functional materials and organic electronics, the invention provides a macromolecular compound containing boron-nitrogen coordinate bond, a preparation method and application thereof, and solves the technical problem of low mobility of organic conjugated macromolecular compounds in the prior art. The conjugated main chain of the macromolecular compound provided by the invention contains three fragments, namely an electron-deficient double boron-nitrogen coordinate bond bridged bipyridyl unit, an Ar unit and an electron-rich thiophene unit respectively, and the structural formula is shown as formula (I). The macromolecular compound has the characteristics of good planarity, strong crystallinity, strong intermolecular interaction, etc., andcan greatly improve the electron mobility of the material; the chemical structure is easy to modify, the energy level structure is adjustable, and the absorption spectrum is wide; and the macromolecular compound can be applied as the acceptor material of organic solar cells and the charge transport layer material of organic field effect transistors.

The invention provides a substrate supporting mechanism which can achieve high speed conveyance of a substrate while ensuring proper conveyance operation. In the substrate supporting mechanism,a holding portion (15) made of carbon nano tubes is installed on the supporting surface (14a) of an end effector (14), and a substrate (W) is supported by the distal ends of the carbon nano tubes. An intermolecular force is generated between the substrate and the carbon nano tube and the substrate is supported with a fixed suction force to the supporting surface. The suction force is generated both in the atmosphere and in the vacuum and a bigger force is obtained for a larger number of carbon nano tubes perunit area. With such an arrangement, slip of a conveyance article on the supporting surface can be suppressed effectively and high speed conveyance of a substrate can be attained. Since the carbon nano tube is excellent in heat resistance, poor conveyance due to deterioration or sticking of the holding portion by heat is prevented during use under high temperature environment and proper conveyance operation of substrate can be ensured.

It is an object of the present invention to provide a fluorescent indicator that is based on homo FRET (fluorescence resonance energy transfer) using fluorescent molecules with a small stokes' shift, thereby developing a visualization system for intermolecular interaction. The present invention provides a fluorescent indicator formed by fusing fluorescent molecular components having substantially identical fluorescent properties to the N- and C-terminal sides of a target sequence, to which an analytical substance binds or reacts, so as to change the three-dimensional structure of the indicator.

The present invention provides an IR-absorbing metal-cyanine dye, said metal having at least one axial ligand bound thereto, wherein said axial ligand comprises a moiety suitable for reducing intermolecular interactions between adjacent dye molecules, thereby minimizing absorption of visible light. Dyes of this type are especially suitable for use in netpage and Hyperlabel systems.

The present invention provides, in the use of the energy transfer phenomenon in a detection system for the measurement of the concentration of a material, a method for controlling the spatial arrangement of an energy donor and an energy acceptor in a reaction complex in order to carry out the measurement with good precision and high sensitivity, and a measurement system using the method. Two types of material having affinity for the subject material to be measured are respectively labeled with a combination of reporters that give rise to energy transfer; those that have been thus obtained by labeling these materials are each further labeled with materials that have weak affinity for each other to give reagents, which are then mixed with a sample to give the reaction complex. Each of the materials is brought into spatial proximity by binding based on the affinity among the materials having weak affinity for each other in the reaction complex, and since that condition is stably maintained, a more efficient energy transfer occurs.