760 results about "Lacceroic acid" patented technology

A mixed liposome pharmaceutical formulation with multilamellar vesicles, comprises a proteinic pharmaceutical agent, water, an alkali metal lauryl sulphate in a concentration of from 1 to 10 wt. / wt. %, at least one membrane-mimetic amphiphile and at least one phospholipid. The membrane-mimetic amphiphile is hyaluronic acid, pharmaceutically acceptable salts of hyaluronic acid, lauramidopropyl betain, lauramide monoisopropanolamide, sodium cocoamphopropionate, bishydroxypropyl dihydroxypropyl stearammonium chloride, polyoxyethylene dihydroxypropyl stearammonium chloride, dioctadecyldimethylammonium chloride, sulphosuccinates, stearamide DEA, gamma-linoleic acid, borage oil, evening of primrose oil, monoolein, sodium tauro dihydro fusidate, fusidic acid, alkali metal isostearyl lactylates, alkaline earth metal isostearyl lactylates, panthenyl triacetate, cocamidopropyl phosphatidyl PG-diammonium chloride, stearamidopropyl phosphatidyl PG-diammonium chloride, borage amidopropyl phosphatidyl PG-diammonium chloride, borage amidopropyl phosphatidylcholine, polysiloxy pyrrolidone linoleyl phospholipid, trihydroxy-oxo-cholanylglycine and alkali metal salts thereof, and octylphenoxypolythoxyethanol, polydecanol X-lauryl ether, polydecanol X-oleyl ether, wherein X is from 9 to 20, or combinations thereof. The phospholipid is phospolipid GLA, phosphatidyl serine, phosphatidylethanolamine, inositolphosphatides, dioleoylphosphatidylethanolamine, sphingomyelin, ceramides, cephalin, triolein, lecithin, saturated lecithin and lysolecithin, or a combination thereof. The amount of each membrane mimetic amphiphile and phospholipid is present 1 to 10 wt. / wt. % of the total formulation, and the total concentration of membrane mimetic amphiphiles and phospholipids is less than 50 wt. / wt. % of the formulation.

Injectable depot compositions, comprising a biocompatible polymer which is a polymer or copolymer based on lactic acid and / or lactic acid plus glycolic acid having a monomer ratio of lactic to glycolic acid in the range from 48:52 to 100:0, a water-miscible solvent having a dipole moment of about 3.7-4.5 D and a dielectric constant of between 30 and 50, and a drug, were found suitable for forming in-situ biodegradable implants which can evoke therapeutic drug plasma levels from the first day and for at least 14 days.

The invention adopts a melt polycondensation method. A few of monomers of C2-5 aliphatic dibasic alcohol, diethylene glycol, polyglycol, fumaric acid, maleic anhydride, lactic acid, glycolic acid, ethanolamine, C2 to C12 aliphatic diamine, glutamic acid, lysine, glycine, etc. are taken as basic materials to be synthesized to obtain non toxic unsaturated polyester-amide resin with adjustable degradation rate and lower cost; wherein, the partial fumaric acid or maleic anhydride can be replaced with phthalic anhydride, isophthalic acid, or adipic acid. The resin yearns for being used as matrix resin of medical bone internal fixation material, tissue engineering scaffold material, bone tissue temporary substitutes, environmental protection type bonding agent, environmental protection type fiberglass reinforced plastics, environmental protection type coating material, disposable tableware, packing material, shopping bags, disposable bags, drug coating or capsule, drug delivery (controlled-release) material, agricultural mulching films, etc., and can be recovered to be utilized.

An improved system for large scale production of proteins and / or polypeptides in cell culture, particularly in media characterized by one or more of: i) a cumulative amino acid concentration greater than about 70 mM; ii) a molar cumulative glutamine to cumulative asparagine ratio of less than about 2; iii) a molar cumulative glutamine to cumulative total amino acid ratio of less than about 0.2; iv) a molar cumulative inorganic ion to cumulative total amino acid ratio between about 0.4 to 1; or v) a combined cumulative glutamine and cumulative asparagine concentration between about 16 and 36 mM, is provided. The use of such a system allows high levels of protein production and lessens accumulation of certain undesirable factors such as ammonium and / or lactate. Additionally, culture methods including a temperature shift, typically including a decrease in temperature when the culture has reached about 20-80% of it maximal cell density, are provided. Alternatively or additionally, the present invention provides methods such that, after reaching a peak, lactate and / or ammonium levels in the culture decrease over time.

The invention relates to a neutral blockage removing agent composition used for a mechanical recovery well in an oilfield. The neutral blockage removing agent composition is prepared from the following components in parts by weight: 16-20 parts of polyepoxysuccinic acid amine, 7-12 parts of hydroxyethylidene dipllosphate sodium, 21-25 parts of divinyl pentaacetic acid amine, 20-25 parts of hydroxyl ammonium acetate, 12-16 parts of activated attapulgite, 21-25 parts of ammonium persulfate, 9-12 parts ofdicyclohexyl sulfobutanedioate sodium, 7-9 parts of butyl lactate, 0.2-0.3 part of vanadium pentoxide, 5-8 parts of straight chain sodium dodecylbenzenesulfonate, 10-14 parts of nitrilotriacetic acid sodium salt, 4-7 parts of urotropin and 0.1-0.3 part of glycerin fatty acid ester. The neutral blockage removing agent composition is suitable for scale removal and blockage removal of an oil pumping unit well and a screw pump well, can effectively control the reaction speed of the blockage removing agent and the scale of the oil pumping unit well and the scaled screw pump well, and prevent the falling-off of big scale residues to result in the secondary blockage of the mechanical recovery well and an oil recovery pump thereof, has high blockage removal speed, is neutral and is free of corrosion; the waste liquid for blockage removal does not need to be discharged onto the ground to be subjected to sewage treatment, the blockage removal time does not exceed 24 hours, and the effect of safe and corrosion-free blockage removal is achieved.

A corneal storage solution which maintains cell density and cell viability of corneas stored in vitro for a period of greater than four days up to about two weeks is provided. The solution contains a buffered, balanced, nutrient and electrolyte aqueous solution, at least one colloidal osmotic agent, a phenolic antioxidant compound, a non-lactate-generating substrate, a thiol-containing compound, insulin, and at least one antibiotic. A method for in vitro storage and preservation of the viability of human corneal endothelial cells for subsequent use includes the steps of removing a cornea from an eye globe and placing the cornea in the above corneal storage solution.

A controlled release composition containing a physiologically active substance in high content, suppressing the initial excess release, and achieving a stable release speed over a long period of time is provided. A controlled release composition comprising (1) a physiologically active substance or salt thereof in an amount of about 14% (w / w) to about 24% (w / w) based on the total composition weight, (2) hydroxynaphthoic acid selected from the group consisting of 3-hydroxy-2-naphthoic acid and 1-hydroxy-2-naphthoic acid or salt thereof, and (3) a lactic acid polymer or salt thereof having a weight-average molecular weight of 15000 to 50000 in which the content of polymers having molecular weights of 5000 or less is about 5% by weight or less, wherein the molar ratio of said hydroxynaphthoic acid or salt thereof to said physiologically active substance or salt thereof is from 3:4 to 4:3.

The invention discloses cool peppermint essence for a menthol cigarette ice blast and a preparation method and application of the essence. The cool peppermint essence is prepared from, by mass, 1%-8% of menthol, 1%-10% of menthyl lactate, 1%-5% of menthyl acetate, 0.2%-0.5% of cooling agent and the balance grease solvent. According to the cool peppermint essence for the menthol cigarette ice blast and the preparation method and application of the essence, when the ice blast is pinched broken, natural peppermint fragrance and cooling feeling can be brought to a cigarette without herb flavor and irritation of menthol, the ice blast can be well integrated with the cigarette, the cigarette smoking comfort is effectively improved, and the smoking quality of the cigarette is improved.