A homo-multifunctional cross-linking reagent (CLR) wherein said CLR is a polyhydroxy polymer (PHP) comprising a PHP-backbone and a plurality of a reactive substituent which i) is attached to said PHP-backbone and ii) exhibits one or more reactive CLR-groups; wherein the PHP is polyvinyl alcohol and wherein the reactive CLR-group is a nucleophilic group selected from carbazate.
[EN] COMPOSITION FOR THE FORMATION OF GELS<br/>[FR] COMPOSITION POUR LA FORMATION DE GELS
申请人:IPR SYSTEMS SWEDEN AB
公开号:WO2009108100A1
公开(公告)日:2009-09-03
A composition, which upon activation, spontaneously forms a cross-linked hydrogel in aqueous liquid. The composition comprises a) a formulation containing a hyluronan (HA-formulation) which comprises a hyaluronan backbone (HA backbone) and a plurality of a reactive substituent group (reactive HA substituent) which i) is directly attached to said HA backbone, and ii) exhibits said reactive HA-group, and b) a formulation of a homo-multifunctional cross-linking reagent (CLR-formulation) exhibiting a plurality of a reactive group (reactive CLR-group). The two reactive groups are selected as a pair of counterparts that mutually and selectively react with each other to the formation of a linkage structure. The hydrogel contains a cross- linking structure which a) is attached to said hyaluronan via two or more of the linkage structure and is defined by the reagent. The cross-linking structure exhibits a plurality of hydroxyl groups. The composition can be used or the formation of support matrices in vivo as well as ex vivo/in vitro.