33results about How to "Good bioabsorbability" patented technology

A low-molecular-weight hyaluronic acid and / or its salt has an average molecular weight of 5000 to 20,000, and has a molecular weight distribution in which the proportion of components having a molecular weight of 10,000 or less is 40 wt % or more and the proportion of components having a molecular weight of 50,000 or more is 5 wt % or less.

The present invention relates to a composition including S-adenosyl-L-methionine; and at least one kind of additive selected from carboxymethylcellulose, hydroxypropylcellulose, soybean polysaccharide, casein sodium, and zein, in which S-adenosyl-L-methionine is extracted from S-adenosyl-L-methionine-containing cells obtained by culturing a microorganism having an ability to produce SAMe, and the content of the additive in the composition falls within the range of 0.05 to 15 times by mass of S-adenosyl-L-methionine in the composition. The present invention provides a composition containing a high concentration of S-adenosyl-L-methionine, which is useful as a water-soluble physiologically active substance, and being excellent in storage stability and bioabsorbability. The present invention also relates to a molded article formed by using the composition and a method of producing the composition.

A novel A1-B-A2 polymer having a number average molecular weight of 10000 to 100000 is provided that has excellent bioabsorbability so as to disappear in a predetermined period of time even when embedded in a large amount in the body, has good kinetic properties, and is useful for preparing tissue anti-adhesion films. This polymer is composed of segments A1 and A2 each having at least either of modified and unmodified amino acid groups, and segment B composed of PEG having a number average molecular weight of 8000 to 50000. The polymer contains both the modified and unmodified amino acid groups, the content of the modified amino acids is 20 to 85 mol % of all the amino acids in the polymer, and segment A1 is bonded to one end of segment B and segment A2 is bonded to the other end of segment B.

A coenzyme Q10-containing composition comprising a coenzyme Q10 and a hydrophilic fatty acid ester of a polyhydric alcohol; a coenzyme Q10-containing composition comprising a coenzyme Q10, a lipophilic fatty acid ester of a polyhydric alcohol and a hydrophilic fatty acid ester of a polyhydric alcohol; and a food or beverage comprising the coenzyme Q10-containing composition as defined above.

The invention discloses a method for manufacturing a micro-pipeline stent with a nano structure on the inner wall. The micro-pipeline stent with a nano structure on the inner wall is manufactured by the steps of manufacturing a template, preparing a macromolecular solution, casting, stripping, ordering for bonding, and the like through combining a thermal fluid reflux and plasma induction coupling technology; and the micro-pipeline stent with a nano structure on the inner wall has the advantages of favorable biocompatibility, biodegradability and biological absorbability and novel and unique structure, is beneficial to the growth and spreading of cells, can improve the function of the stent in a living body and maintain the normal metabolism of the cells and has wide application prospect in the fields of transportation of nutrient substances, exchange of metabolic products, a culture base plate of active substances, a stent material of sealed space, tissue engineering stent materials, and the like.

The invention relates to core-shell double-layer microspheres employing poly(p-dioxanone) as cores and a preparation method and application of the core-shell double-layer microspheres, belongs to the technical field of biological medicines, and provides core-shell double-layer microspheres employing poly(p-dioxanone) as cores and a preparation method of the core-shell double-layer microspheres. The method mainly comprises preparation of poly(p-dioxanone) microspheres and preparation of the double-layer microspheres with a core-shell structure by using the poly(p-dioxanone) microspheres. The method is simple in operation, good in repeatability and low in cost, and the preparation process is friendly to environment. The prepared microspheres are uniform and controllable are in particle size, safe, biodegradable, good in histocompatibility and slow in degradation; the degradation time can be regulated and controlled according to the type of a shell material and the adding ratios of core-shell materials. The microspheres can be widely applied to the fields of sustained release or controlled release drugs, and bioactive substance, cosmetic and soft tissue filling and repairing.