42 results about "Membrane complex" patented technology

The invention relates to a tracheal stent and application thereof. The tracheal stent comprises supporting rings and a supporting connecting rod, wherein the various supporting rings are of C-shaped structures and are serially connected by virtue of the supporting connecting rod, so that the various supporting rings are integrally fixed with the supporting connecting rod. The invention further provides a tissue engineering trachea, and the tissue engineering trachea is prepared by winding a chondrocyte-gelatin / polycaprolactone electrospun membrane complex on the outer surface of the tracheal stent. The tracheal stent or the tissue engineering trachea disclosed by the invention can be used for repairing tracheal stenosis by virtue of a tracheal external support suspension method, and a new C-shaped cartilaginous ring is formed after the implantation of the tracheal stent or the tissue engineering trachea, so as to guarantee growth potential finally.

Disclosed are a zeolite membrane complex capable of establishing both of practically sufficient treatment rate and separation performance, which is usable, in particular, in the presence of an organic acid, can be used for separating / concentrating a gas or liquid mixture containing an organic matter, is economically advantageous without requiring a high energy cost, and is not restricted in application range; a method for producing the same; and a separation / concentration method using the membrane complex. A complex composed of an inorganic porous support and a zeolite membrane, characterized in that the inorganic porous support contains a sintered ceramic, and a CHA type zeolite crystal layer is provided, as the zeolite membrane, on the surface of the inorganic porous support.

A separation membrane complex 1 where a carbon membrane 66 is formed directly on a porous body 61 (surface layer 64) and an intermediate layer 63 has a thickness of 10 to 100 μm can be used as a filter having improved flux and selectivity in comparison with a conventional one.

The invention discloses a manufacturing method of a high-energy-density button lithium ion battery. The method comprises the following steps: stamping: stamping a positive electrode and a negative electrode into small pieces by using cutting dies; hot melting: making positive pieces and membranes into a positive piece-membrane complex; laminating: alternatively laminating the positive piece-membrane complex and negative pieces into a polar group, and rubberizing the polar group; welding: laminating an aluminum foil of the same shape as the positive pieces on one side of the polar group which is in contact with a positive cover, welding the lug of the aluminum foil and the lugs of the positive pieces together, welding the lugs of the negative pieces and a nickel belt together, putting the materials into a shell, and welding the nickel belt and a negative shell together; and performing baking, liquid injection, sealing, ageing and pre-charging to make a complete button lithium ion battery. Compared with an existing process, the method has the advantages that the space of the shell can be fully utilized, and the energy density is high; and through adoption of the positive piece-membrane complex made by hot melting, short circuit caused by contact of the positive and negative pieces is prevented, and the safety is high.

The invention relates to the field of biotechnology, and particularly provides a method for targeted capture and sequencing of HLA gene sequences. The method comprises the following steps: 1) hybridizing a denatured nucleic acid sample with a nucleic acid probe library fixed on a solid-phase carrier under a hybridization condition to form a target nucleic acid molecule-probe-solid-phase carrier membrane complex; 2) cleaning the 'probe-solid-phase carrier membrane complex' bound with target nucleic acid in step 1) by using a cleaning solution, eluting the probe-solid-phase carrier membrane complex bound with the target nucleic acid from a solid-phase carrier membrane by using an eluting solution, purifying, enriching or constructing to obtain a nucleic acid library; and 3) taking the nucleic acid library obtained by enrichment or constructed after enrichment in step 2) for high-throughput sequencing. A nucleic acid probe which can rapidly generate high-fold coverage and single-base displacement and is used for enriching HLA genes can be immovably fixed on the solid-phase carrier membrane. The method has characteristics of simplicity and convenience in operation, flexible probe acquisition and low cost, is favorable for improving the HLA genotype identification accuracy, and is rapid and convenient.

A diaryl alkane isolating oil, the molecule structure formula of it is I, the R1, R2 and R3 represents H or CH3 separately. This isolating oil can be as the immersion oil of some condenser, and it can be as the immersion of paper mediator, paper membrane complex mediator and whole membrane mediator. It especially is suitable to the immersion of high pressure whole polypropylene membrane. The aromatic and fat element of this invention are optimizing combination, and this improves the aroma of the isolating oil further and decreases the viscosity of the isolating oil at low temperature, so the electric field resistance of the isolating oil during the whole usage processes is stable. It can be applied to the higher intensity of working electric field.

A support is a porous ceramic support for supporting a zeolite membrane. The hydraulic conductivity of the support is less than or equal to 1.1×10−3 m / s. In the support, the total content of alkali metal and alkaline earth metal in a surface part within 30 μm from a surface in a depth direction perpendicular to the surface is less than or equal to 1% by weight.

The invention relates to the field of biotechnology, and specifically provides a solid-phase-carrier-membrane-based target nucleic acid enrichment method for high-throughput sequencing. The solid-phase-carrier-membrane-based target nucleic acid enrichment method comprises: 1) combining a nucleic acid probe library and a solid phase carrier membrane to form a probe-solid phase carrier membrane complex; 2) adding target nucleic acid to a hybridization solution containing the probe-solid phase carrier membrane complex, and enriching the target nucleic acid; 3) washing the obtained probe-solid phase carrier membrane complex with the target nucleic acid by using a washing solution, eluting from the solid phase carrier membrane by using an eluent, and purifying the enriched target nucleic acid library; and 4) applying the target nucleic acid library enriched in the step 3) in high-throughput sequencing. According to the present invention, with the method, the high-multiple coverage and single-base displacement nucleic acid probe for enriching the target nucleic acid can be rapidly produced, and is immovably fixed on the solid phase carrier membrane; and the method has advantages of simple operation, flexible probe acquisition and low cost.

The invention provides a separation membrane complex, and method for production of separation membrane complex. Disclosed is a separation membrane complex (1) characterized by having a carbon membrane(66) formed directly on a porous material (61) (a surface layer (64)) and also having an interlayer (63) with a thickness of 10 to 100 ¢mu!m. The separation membrane complex (1) can be used as a filter having improved flux and selectivity compared to a conventional one.

The present invention provides a peptide having cell membrane penetrating activity, a transmembrane carrier comprising the peptide having cell membrane penetrating activity as an effective component, a transmembrane complex consisting of the peptide having cell membrane penetrating activity combined with a target substance, a transfection kit comprising the peptide having cell membrane penetrating activity and the target substance, use of the peptide having cell membrane penetrating activity for the manufacture of a transmembrane complex, use of the transmembrane complex for the manufacture of a medicament, and a method for delivering a target substance into cell interior which comprises administrating to a subject with a transmembrane complex consisting of the peptide having cell membrane penetrating activity combined with a target substance to induce transduction of the transmembrane complex into cell interior. The peptide having cell membrane penetrating activity of the present invention has a prominent penetrating efficiency as compared with the activities of prior TAT-derived peptides and so the peptide has applications on intracellular delivery in various research fields as well as on therapeutics of specific diseases where targeting of drugs is required at high efficiency. Accordingly, the peptide having cell membrane penetrating activity, the transmembrane complex consisting of the peptide combined with a target substance and the method for delivering a target substance into cell interior using the transmembrane complex of the present invention are very useful as drug delivery systems.

The invention discloses a device for testing the membrane complex permeability with the short-circuit micro-strip line method, and belongs to the technical field of magnetic material testing.The device comprises a base, an outer coil, an inner coil, a carrying platform and a short-circuit micro-strip line clamp.The outer coil and the inner coil are coaxial hollow cylinder coils, the inner coil is located inside the outer coil, the outer coil is arranged on the base, the carrying platform is arranged on the inner side of the inner coil, the short-circuit micro-strip line clamp is placed on the carrying platform, and an included angle alpha is formed between the outer coil, a center shaft of the inner coil and the carrying platform and the horizontal plane.According to the device, a center magnetic field is formed through two coaxial hollow cylinder coils, an electromagnet is not required, the size is small, the weight is light, power dissipation is low, a large center magnetic field can be achieved through small coils, and cost is low; the whole testing system is not replaced when the coils are damaged, the corresponding-part coil is only need to be replaced, use is convenient, and working voltage is low.

The invention discloses a pure silica zeolite membrane complex and a preparation method thereof. The pure silica zeolite membrane complex comprises a porous carrier and a pure silica zeolite membranecovering the surface of the porous carrier. The thickness of the pure silica zeolite membrane is micron-sized or sub-micron-sized; part of the pure silica zeolite membrane is embedded into the porouscarrier and is combined with the porous carrier to form an entirety. The pure silica zeolite film has ultra-thin thickness which is micron-sized or sub-micron-sized, so that the penetration resistanceof the pure silica zeolite membrane complex is greatly reduced and permeability flux of the pure silica zeolite membrane complex is increased. The pure silica zeolite membrane complex disclosed by the invention has a good gas separation effect; a separation effect index of the pure silica zeolite membrane complex on small molecule gas is 3x10<-5> to 3x10<-4>.

A gas separator includes a separation membrane complex in which a separation membrane with pores having a mean pore diameter less than or equal to 1 nm is formed on a porous support, and a gas supply part that supplies a mixed gas including CO2 and another gas from the side of the separation membrane to the separation membrane complex. Then, CO2 in the mixed gas is caused to permeate through the separation membrane and the support and is separated from the mixed gas in a state in which at least part of a permeation surface of the support, from which a gas having permeated through the separation membrane is exhausted, has a temperature lower by 10° C. or more than the temperature of the mixed gas before being supplied to the separation membrane complex.

A porous support-zeolite membrane composite comprising an inorganic porous support and a zeolite membrane provided on, wherein the zeolite membrane contains a zeolite having a microporous structure of 8-membered oxygen ring or less, and a molar ratio of SiO2 / Al2O3 in the zeolite membrane surface is larger by at least 20 than a molar ratio of SiO2 / Al2O3 in the zeolite membrane itself, or a water adsorption of the porous support-zeolite membrane composite at a relative pressure of 0.8, as determined from a water vapor adsorption isotherm of the porous support-zeolite membrane composite, is at least 82% of a water adsorption of the porous support-zeolite membrane composite under the same condition as above after one-week immersion of the porous support-zeolite membrane composite in an aqueous 90 mass % acetic acid solution at room temperature.

A zeolite membrane complex includes a porous support and a zeolite membrane formed on the support. Water molecules are adsorbed in the zeolite membrane. A decreasing rate of water content in the zeolite membrane from 250° C. to 500° C. is 0.1% or more.

A zeolite membrane complex includes a porous support, and a zeolite membrane formed on the support. The zeolite membrane includes a zeolite crystal phase constituted by a plurality of zeolite crystals, and a dense grain boundary phase, which is a region between the plurality of zeolite crystals. A density of at least part of the grain boundary phase is smaller than a density of the zeolite crystal phase. A width of the grain boundary phase is 2 nm or more and 10 nm or less. Accordingly, it is possible to realize high permeability and high separating performance, and high durability of the zeolite membrane.

A zeolite membrane complex includes a longitudinal support member having at least one through hole extending along its length and a zeolite membrane on an inner peripheral surface of the through hole or over an outer peripheral surface of the support, from one end portion of the support to the other end portion thereof. Among constituent elements of the zeolite membrane except oxygen, an element with the highest percentage is a main element, and when the concentration of the main element is measured at three portions defined by dividing the support into three equal parts in the longitudinal direction, the concentration of the main element gradually decreases from the one end portion toward the other end portion, and the ratio of the concentration of the main element at the other end portion-side to that at the one end portion is 0.90 or more.

A zeolite membrane complex includes a support and a zeolite membrane formed on the support. The zeolite membrane is of an SAT-type zeolite. Among particles on the surface of the zeolite membrane, particles that have aspect ratios higher than or equal to 1.2 and lower than or equal to 10 account for 85% or more of the area of the surface of the zeolite membrane. This improves the orientations of the particles and also reduces the interstices among the particles. As a result, the denseness of the zeolite membrane is improved. Accordingly, for example, high gas separation performance can be obtained when the zeolite membrane complex is used as a gas separation membrane.

A housing of a separation apparatus includes therein a zeolite membrane complex. A sheath includes therein the housing. A fluid supplied to the inside of the housing has a temperature higher than the temperature around the sheath. A second exhaust port is used to exhaust a permeated substance that has permeated through the zeolite membrane complex in the fluid to the outside of the housing. The permeated substance exhausted from the housing can be led into an exterior space between the sheath and the housing through the second exhaust port and can be exhausted through an exterior exhaust port. At least part of the zeolite membrane complex is included in an inter-port space surrounded by the sheath, the second exhaust port, and the exterior exhaust port. This structure reduces energy required for fluid separation performed under high temperatures.

A support is a porous ceramic support for supporting a zeolite membrane. The hydraulic conductivity of the support is less than or equal to 1.1×10−3 m / s. In the support, the total content of alkali metal and alkaline earth metal in a surface part within 30 μm from a surface in a depth direction perpendicular to the surface is less than or equal to 1% by weight.

This invention describes ways of obtaining nano-particulated adjuvants formed by different synthetic variants of GM3 ganglioside. Depending on the fine structure of the fatty acid in the ceramide of the synthetic GM3, said adjuvants are able to stimulate specifically and in a specialized way the humoral or cellular immune response against accompanying antigens. Particularly, this invention provides immunogenic vaccine compositions that comprise peptides, polypeptides or proteins and the aforementioned nanoparticles, which are formed through the dispersion of hydrophobic proteins of the outer membrane complex (OMC) of Neisseria meningitidis in solutions containing fully synthetic variants of the GM3 ganglioside.

A zeolite membrane complex includes a porous support, and a zeolite membrane formed on the support. The zeolite membrane includes a zeolite crystal phase constituted by a plurality of zeolite crystals, and a dense grain boundary phase, which is a region between the plurality of zeolite crystals. A density of at least part of the grain boundary phase is smaller than a density of the zeolite crystal phase. A width of the grain boundary phase is 2 nm or more and 10 nm or less. Accordingly, it is possible to realize high permeability and high separating performance, and high durability of the zeolite membrane.

The invention discloses a method for nano-deep surface activation of a PTFE-based membrane, which relates to the technical field of polymer composite materials. After covering the functional surface of a PTFE-based nano-functional composite membrane, one side of the membrane to which adhesive glue is applied is activated. Surface activation treatment, the high-toughness cold adhesive tape is migrated and compounded on the membrane surface of the PTFE-based nano-functional composite membrane with an activated structural layer through a mechanical sizing device, forming an adhesive-film composite. Produces extremely strong affinity and high-strength bonding performance between the film and the glue, forms a film-glue complex, and realizes film / adhesive bonding composite, film / film bonding composite, film / paste base layer bonding. Integration, while improving the bonding strength and peeling force of the glue and the durability of the bonding force, it solves the technical problem of PTFE material without any material bonding.

A zeolite membrane complex includes a porous support and a zeolite membrane formed on the support. The zeolite membrane contains Al, P, and a tetravalent element. The composition of the zeolite membrane measured by X-ray photoelectron spectroscopy is such that the molar ratio of the tetravalent element to Al is higher than or equal to 0.01 and lower than or equal to 0.5, the molar ratio of P to Al is higher than or equal to 0.5 and lower than 1.0, and the total molar ratio of P and the tetravalent element to Al is higher than or equal to 0.9 and lower than or equal to 1.3. The zeolite membrane contains a zeolite crystal with an accessible volume higher than or equal to 450 Å3.