The present invention relates to a physiologically active substance to which a biotin moiety is bound; and a composition for oral administration comprising same. A physiologically active substance to which a biotin moiety is bound has excellent oral absorption into the body.

Described herein are methods for evaluating polymer compositions comprising polymers modified with a small molecule compound (e.g., afibrotic compound), including methods for determining the concentration levels of said compounds.

Described herein are methods for evaluating polymer compositions comprising polymers modified with a small molecule compound (e.g., afibrotic compound), including methods for determining the concentration levels of said compounds.

The invention relates to materials and methods of conjugating a water soluble polymer to an oxidized carbohydrate moiety of a therapeutic protein comprising contacting the oxidized carbohydrate moiety with an activated water soluble polymer under conditions that allow conjugation. More specifically, the present invention relates to the aforementioned materials and methods wherein the water soluble polymer contains an active aminooxy group and wherein an oxime or hydrazone linkage is formed between the oxidized carbohydrate moiety and the active aminooxy group on the water soluble polymer, and wherein the conjugation is carried out in the presence of a nucleophilic catalyst.

The invention relates to materials and methods of conjugating a water soluble polymer to an oxidized carbohydrate moiety of a therapeutic protein comprising contacting the oxidized carbohydrate moiety with an activated water soluble polymer under conditions that allow conjugation. More specifically, the present invention relates to the aforementioned materials and methods wherein the water soluble polymer contains an active aminooxy group and wherein an oxime or hydrazone linkage is formed between the oxidized carbohydrate moiety and the active aminooxy group on the water soluble polymer, and wherein the conjugation is carried out in the presence of a nucleophilic catalyst.

The present invention provides a hyaluronic acid derivative containing a disaccharide unit represented by formula (I) or formula (I) and (II), and a complex containing the hyaluronic acid derivative and a drug.

The present invention provides a hyaluronic acid derivative containing a disaccharide unit represented by formula (I) or formula (I) and (II), and a complex containing the hyaluronic acid derivative and a drug.

Disclosed are biocompatible cryogels comprising one or more biomolecules, such as antibodies, protein complexes, enzymes, dna and polysaccharides. Also disclosed are methods of making the cryogels.

Disclosed are biocompatible cryogels comprising one or more biomolecules, such as antibodies, protein complexes, enzymes, dna and polysaccharides. Also disclosed are methods of making the cryogels.

The present invention provides an advanced absorption and delivery system to an ecdysterone-based nutritional supplement, specifically a turkesterone-based nutritional supplement, a turkesterone hydroxypropyl β-cyclic dextrin complex manufactured using a co-precipitation technique, the manufacturing process including a fluid bed drying system wherein the complex is dried using hot air blown into contact with a fluidized bed.