190results about How to "Increase uptake" patented technology

A method for administration of a substance into the dermis of a mammal is disclosed. The method involves administration into the dermis by injection which results in improved systemic absorption relative to that obtained upon subcutaneous administration of the substance. The substance administered may be a growth hormone, a low molecular weight heparin or a dopamine receptor agonist.

Methods and devices for administration of substances into the intradermal layer of skin with improved bioavailability.

This invention is directed to a novel method and composition for the treatment of diabetes mellitus (Type I, Impaired Glucose Tolerance ["IGT"] and Type II). More specifically, this invention pertains to a novel method of treating diabetes mellitus by incorporating a therapeutic amount of one or more insulin sensitizers along with one or more of an orally ingested insulin, an injected insulin, a sulfonylurea, a biguanide or an alpha-glucosidase inhibitor for the treatment of diabetes mellitus.

The invention discloses a liquorice vegetable drink for improving a gastrointestinal function and enhancing the immunity and a preparation method of the liquorice vegetable drink. Herb of liquorice is used as a main raw material; liquorice concentrated juice, an edible mushroom extract, wolfberry fruit concentrated juice, modified dietary fibers, a corn bee pollen extract, pectin hydrolyzate and the like are scientifically compounded; the raw materials are treated by adopting a modern low-temperature and biological extraction technology, so that the content of effective components of the raw materials is greatly increased; various functional components are organically mixed, so that the optimal synergistic effect is achieved; meanwhile, by adoption of methods for thermal hybrid concentration of unstable concentrated liquid, jointed removal of cold and heat, sterile filtration, and the like, the flavor of the liquorice vegetable drink is greatly enhanced, and the expiration date of a product is prolonged; the liquorice vegetable drink with the effects of improving the gastrointestinal function and enhancing the whole immunity of a human body is prepared.

The invention discloses an edible grain, bean and potato coarse cereal rice composition and a preparing method thereof and belongs to the technical field of grain deep processing. According to the edible grain, bean and potato coarse cereal rice composition, broken rice is used as a main raw material, after ultrasonic cleaning, microwave curing, drying and sterilizing of the broken rice, the broken rice, grain powder with a special flavor, enzymatic hydrolysate and other functional raw materials are pelletized, and then grain arrangement and processing through a microwave drying device are carried out, so that the edible grain, bean and potato coarse cereal rice composition is obtained. The edible grain, bean and potato coarse cereal rice composition has a tissue structure, granularity, hardness and viscosity which are similar to those of rice, can be boiled and cooked with rice, has the taste and chewiness, which are similar to those of cooked rice, is unique in flavor, soft in fragrance, high in appetite attractiveness, easy to digest and comprehensive in nutrition, and can improve the immunity and disease resistance of the human bodies and improve the gastrointestinal function. The guarantee period is three times of that of commercial rice. More importantly, a shortcut is developed for the efficient value-added comprehensive utilization of the broken rice, the road for the deep processing of the broken rice is broadened, and the economical value of the broken rice is increased. Better social benefits and economic benefits are realized and a sustainable development road for the deep processing of agricultural byproducts and the effective solving of Three-Rural problems is explored.

The invention relates to a preparation method of carboxyl and polypeptide modified AIE polymer nanoparticles, the method comprises the following steps: 1) preparing an emulsifier aqueous solution; 2)dissolving AIE molecules and an Austrian ripening effect inhibitor in a mixed solution of carboxyl functional monomers and hydrophobic monomers to obtain an oil phase solution; 3) adding the emulsifier aqueous solution into the oil phase solution, stirring and pre-emulsifying to obtain crude emulsion, and performing ultrasonic treatment to obtain monomer miniemulsion; introducing nitrogen to remove oxygen, adding a water-soluble initiator to react; 4) dissolving a carbodiimide condensing agent in an acidic pH buffer solution, and adding the carbodiimide condensing agent into the emulsion prepared by the step 3) for activation; 5) dissolving omega-aminomaleimide in an alkaline pH buffer solution to obtain an omega-aminomaleimide solution; 6) adding the omega-aminomaleimide solution to the emulsion prepared in the step 4) for reaction; and (7) adding a polypeptide aqueous solution containing cysteine sequence units at the tail end to the emulsion prepared in the step (6) for reaction toprepare the carboxyl and polypeptide modified AIE polymer nanoparticles.

A method for inducing differentiation of monocytes contained in an extracorporeal quantity of a subject's blood into functional dendritic antigen presenting cells is provided. The monocytes are induced to differentiate into dendritic cells by activation forces resulting from flow of the monocytes through a treatment apparatus having plastic channels. The interior surface of the plastic channel may be modified to increase the available surface area for interaction with blood monocytes. Platelets and serum protein may be removed from the blood prior to treatment to reduce or eliminate contamination of the plastic channel by these blood components. Functional dendritic cells generated from induced monocytes are incubated together with apoptotic or inactivated disease effector agents to enhance the presentation of at least one disease-causing antigen expressed by the disease effector agents. Compositions including dendritic cells derived from induced monocytes and compositions including such dendritic cells incubated with disease effector agents are also provided for use in immunotherapeutic treatment.

The invention provides a synthetic method of N-2-hydroxypropyl trimethyl ammonium chloride chitosan and a preparation method of Newcastle disease attenuated live vaccine-loaded nanoparticles of the N-2-hydroxypropyl trimethyl ammonium chloride chitosan, relating to a synthetic method of chitosan and a preparation method of vaccine-loaded nanoparticles of the chitosan. The synthetic method comprises the following steps of: deacelation of the chitosan; dip-treatment of the chitosan; crude preparation of the N-2-hydroxypropyl trimethyl ammonium chloride chitosan; and refined preparation of the N-2-hydroxypropyl trimethyl ammonium chloride chitosan. The preparation method comprises the following steps of: adding a Newcastle disease virus solution into an N-2-hydroxypropyl trimethyl ammonium chloride chitosan solution to obtain a solution A; adding sodium tripolyphosphate, PBS (phosphate buffer solution) and span-80 into the solution A to obtain a solution B; and centrifuging the solution B to obtain a deposit, adding PBS for suspension, adding mycose skimmed milk, and performing freeze drying to finish the preparation. The nanoparticles prepared by using the method has the advantages of easiness in control of particle size, small particle size of drug-loaded nanoparticles, high entrapment efficiency, large drug-loading quantity, mild preparation conditions, low drug toxic or side effect, long slow release time, simple preparation process, lower production cost and easiness in large-scale production.

The invention discloses antibody nanoparticles coated by natural red cell membranes for antibody drug delivery and a preparation method of the antibody nanoparticles. The red cell membranes in the invention are extracted from experimental rats, most of the contents and unrelated proteins are removed after the red cell membranes are treated, and protein nanoparticles formed by antibodies are coated with the obtained red cell membranes. The method is suitable for coating nanoparticles formed by different antibodies through the red cell membranes, can improve the stabilities and the in-vivo circulation times of free antibodies, and further reduces the body immunity clearance rate.

The invention relates to processes for reducing ammonia loss and odor from organic material or waste to the atmosphere. A plasma generator is applied to upgrade organic waste and manure with a mixture of acidic nitrates and nitrites. The present invention also relates to an acidic nitrate solution, suitable for reducing ammonia loss and odor from organic material or waste to the atmosphere, and a process for producing such an acidic nitrate solution. The invention further comprises plants for reducing ammonia loss and odor from organic material or waste to the atmosphere.

The invention provides chitosan-modified methazolamide solid lipid nanoparticles and a preparation method thereof. The chitosan-modified methazolamide solid lipid nanoparticles can be used as eye drops. The preparation method is suitable for industrial production. The chitosan-modified methazolamide solid lipid nanoparticles are characterized in that based on 30ml of a nanoparticle-containing solution, the chitosan-modified methazolamide solid lipid nanoparticles comprise 5mg of methazolamide, 25 to 150mg of at least one lipid material, 25 to 150mg of phospholipid, 5 to 100mg of chitosan, 50 to 250mg of at least one non-phospholipid surfactant and 50 to 250mg of at least one assistant surfactant. The chitosan-modified methazolamide solid lipid nanoparticles have small particle sizes and high drug entrapment efficiency. Compared with solid lipid nanoparticles which are not modified by chitosan, the chitosan-modified methazolamide solid lipid nanoparticles have higher stability and better corneal permeability because of positive charges on the surfaces of the chitosan-modified methazolamide solid lipid nanoparticles so that drug bioavailability is improved. Therefore, the chitosan-modified methazolamide solid lipid nanoparticles have a large clinical application potential in glaucoma treatment.

Methods and devices for administration of substances into the intradermal layer of skin for systemic absorption.

The invention discloses a star-shaped multi-targeting functional gene vector based on POSS and application. A preparation method of the vector includes: allowing octaamino POSS and 2-bromoisobutyryl bromide to have reaction to generate macroinitiator POSS-(Br)n, performing two-step atom transfer polymerization reaction to graft hydrophilic dimethylaminoethyl methacrylate and poly(ethylene glycol)methacrylate to the POSS, introducing double bonds to the tail end of polymer, and modifying targeting functional polypeptide to the polymer to obtain the star-shaped multi-targeting functional gene vector based on POSS. A gene delivery system can be prepared by using the star-shaped multi-targeting functional gene vector based on POSS. The star-shaped multi-targeting functional gene vector based on POSS has the advantages that the star-shaped gene vector allows positive charges to be concentrated, so that the gene carrying ability of the polymer is enhanced; stable micelles small in particle size can be formed easily, and cell uptake is benefited; the PDMAEMA chain segment is used as the main chain segment for carrying the compressed gene, so that endosome escaping ability can be enhanced.

The invention discloses a siRNA-loaded nano-liposome hybrid micelle. The siRNA-loaded nano-liposome hybrid micelle comprises siRNA, cationic liposome and a lipid outer layer, wherein the the siRNA is coated by the cationic liposome from inside to outside. The siRNA provided by the invention can selectively silence three sFLT1 mRNAs subtypes of sFLT1 mainly causingover-express of a placenta, without decreasing the full-length FLT1 mRNA. The positively charged cationic liposome and the negatively charged siRNA are combined to form a compound, so that the stability of the siRNA is improved. After the compound is wrapped by the lipid outer layer, the placenta can be targeted, so that siRNAs are accumulated at the placenta, the uptake of cells to a delivery system is improved, and the escape of endosome is promoted. The invention further discloses a preparation method of the micelle and application of the micelle in preparation of drugs for treating preeclampsia, providing a new thought for gene therapy of preeclampsia.