Photocrosslinkable oligo(poly (ethylene glycol) fumarate)...

C - Chemistry – Metallurgy – 08 – F

Patent

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Details

C08F 283/01 (2006.01) A61L 31/06 (2006.01) A61L 31/14 (2006.01) C08F 26/08 (2006.01) C08G 63/676 (2006.01) C08J 3/24 (2006.01) C08J 3/28 (2006.01) C08L 51/08 (2006.01) C08L 67/06 (2006.01)

Patent

CA 2602905

The invention provides photocrosslinkable, injectable, biodegradable oligo(poly(ethylene glycol) fumarate) (OPF) hydrogels made from the photopolymerization of an OPF macromer with UV light and a photoinitiator. Hydrogels with varying mechanical properties and water content can be made with changes in macromer and crosslinking agent concentration in a precursor solution. The biodegradable OPF hydrogels can be injected as a fluid into a bodily defect of any shape, may incorporate various therapeutic agents, e.g., cells and/or growth factors, and may be implanted via minimally invasive arthroscopic techniques.

L'invention concerne des hydrogels d'oligo(poly(éthylène glycol) fumarate) (OPF) photoréticulables, injectables, biodégradables, obtenus par polymérisation d'un macromère OPF avec un rayonnement ultraviolet et un pho-amorceur. Il est possible d'obtenir des hydrogels aux propriétés mécaniques et à teneur en eau variables en jouant sur la concentration du macromère et de l'agent réticulant dans une solution précurseur. Les hydrogels d'OPF biodégradables peuvent être injectés sous forme liquide dans une défectuosité du corps de forme quelconque, peuvent inclure divers agents thérapeutiques tels que des cellules et/ou des facteurs de croissance et peuvent être implantés par des techniques arthroscopiques très peu effractives.

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