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Biocompatible composite capsules

Référence

84819-01

Statut des brevets

French patent application FR0203939 filed on March 28, 2002, entitled “Capsules composites biocompatibles”

Inventeurs

Yves FRERE
Louis DANICHER

Statut commercial

Exclusive or non-exclusive licenses and collaborative research.

Laboratoire

Institut Charles Sadron a CNRS laboratory (UPR 22) in Strasbourg, France.

Description

TECHNICAL DESCRIPTION

The invention describes the synthesis of new biocompatible capsules.
These capsules are obtained by interfacial polycondensation, in clean medium of liquid or supercritic CO2.
The membrane can have different kinds of chemical natures according to the applications, especially of a biotolerated polymer. They contain an active principle in gel form (hydrophilic or lipophilic depending on the application) that can be liberated at different speeds depending on the nature and size of the capsule.

Encapsulation allows the active principle to be protected from the external environment thanks to a good mechanical standard.

INDUSTRIAL APPLICATIONS

The biotolerated chemical nature and the size of the capsule membrane, depending on the nature of the active principle are chosen according to the application, as well as the function of the active principle.
The capsules are easily retrieved and carried due to their mechanical standard.
Applications include: pharmaceuticals (controlled release of drugs), medical media (blood detoxification), veterinary media (animal treatment), plant-care media (pesticides).

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