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Title: | Multicomponent vinylpyrrolidone hydrogels and use thereof in tissue engineering and/or regenerative medicine |
Other Titles: | Hidrogeles multicomponentes basados en vinilpirrolidona y su aplicación en ingenierís de tejidos y/o medicina regenerativa | Authors: | Gallardo Ruiz, Alberto CSIC ORCID; Aranaz, Inmaculada CSIC ORCID; Nash, María E. CSIC; Gómez Tardajos, Myriam; Elvira, Carlos CSIC ORCID; Reinecke, Helmut CSIC ORCID; Martínez-Campos, Enrique CSIC ORCID; Ramos, Viviana; López-Lacomba, José Luis | Issue Date: | 11-Dec-2014 | Citation: | WO2014195552 A1 | Abstract: | [EN] The invention relates to a hydrogel having a cross-linked multicomponent polymer network structure, characterised in that said hydrogel includes: a) blocks derived from vinylpyrrolidone (V) and blocks derived from an anionic or anionisable alkene monomer (A), wherein the reactivity ratios in binary radical copolymerisation of (V) and (A) have maximum and minimum values of 0.5, respectively; and b) blocks derived from at least one cross-linking agent; as long as the one or more cross-linking agents are i) two cross-linking agents E1 and E2, wherein E1 is at least partially homologous with (A) and E2 is at least partially homologous with (V); or ii) a cross-linking agent E3 which is homologous with (A) and (V). The invention also relates to a method for obtaining the aforementioned hydrogel, which includes placing the monomers (A) and (V) in contact with the cross-linking agents E1 and E2, or the cross-linking agent E3, under radical polymerisation conditions. The invention further relates to the use of the hydrogel in biological, biomedical or biotechnology applications that require non-toxic hydrogel-cell interaction. [ES] Hidrogel con estructura de red polimérica multicomponente entrecruzada, caracterizado porque comprende: a) unidades derivadas de vinilpirrolidona (V) y unidades derivadas de un monómero alquénico aniónico o anionizable (A), donde las relaciones de reactividad en copolimerización radical binaria de (V) y (A) tienen valores máximo y mínimo de 0.5 respectivamente; y b) unidades derivadas de al menos un entrecruzante; siempre que el ó los entrecruzantes sean i) dos entrecruzantes E1 y E2, donde E1 presenta homología al menos parcial respecto a (A) y E2 presenta homología al menos parcial respecto a (V); ó ii) un entrecruzante E3 que presenta homología respecto a (A) y (V). Procedimiento de obtención del mencionado hidrogel que comprende poner en contacto los monómeros (A) y (V) con los entrecruzantes E1 y E2, o el entrecruzante E3, en condiciones de polimerización radicalaria. Uso del hidrogel en aplicaciones biológicas, biomédicas o biotecnológicas que requieran una interacción no tóxica hidrogel-célula. |
URI: | http://hdl.handle.net/10261/125279 |
Appears in Collections: | (ICMM) Patentes (CIB) Patentes (ICTP) Patentes |
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WO2014195552A1.pdf | 2,84 MB | Adobe PDF | ![]() View/Open |
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