Biomaterials carrying cyclodextrines having improved absorption properties and used for the progressive and delayed release of therapeutic molecules

• Main Authors: MORCELLET MICHEL, MARTEL BERNARD, HAULON STEPHAN, BLANAIN NICOLAS, HILDEBRAND HARTMUT FRIEDRICH, BOSCHIN FRANCOIS
• Format: Patent
• Language: Chinese; English
• Published: 28.11.2007
• Subjects: CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMISTRY; COMPOSITIONS BASED THEREON; DERIVATIVES THEREOF; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; HUMAN NECESSITIES; HYGIENE; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METALLURGY; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; POLYSACCHARIDES; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; THEIR PREPARATION OR CHEMICAL WORKING-UP

A method for preparing a biomaterial containing at least one bioactive molecule from a base biomaterial, comprising the following successive operations carried out on the base biomaterial: a) application of a solid mixture of: cyclodextrin(s) and/or cyclodextrin derivative(s) and/or cyclodextrin inclusion complex(es) and/or cyclodextrin derivative inclusion complex(es), at least one poly(carboxylic) acid, and optionally a catalyst; b) heating at a temperature between 100° C. and 200° C. for a period of 1 to 60 minutes; c) washing with water; d) drying, wherein at least one bioactive agent is incorporated in the biomaterial by impregnation of the biomaterial after the drying step in a concentrated solution of the bioactive agent.