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Type I Collagen-Fibrin Mixed Hydrogels: Preparation, Properties and Biomedical Applications

Abstract : Type I collagen and fibrin are two essential proteins in tissue regeneration and have been widely used for the design of biomaterials. While they both form hydrogels via fibrillogenesis, they have distinct biochemical features, structural properties and biological functions which make their combination of high interest. A number of protocols to obtain such mixed gels have been described in the literature that differ in the sequence of mixing/addition of the various reagents. Experimental and modelling studies have suggested that such co-gels consist of an interpenetrated structure where the two proteins networks have local interactions only. Evidences have been accumulated that immobilized cells respond not only to the overall structure of the co-gels but can also exhibit responses specific to each of the proteins. Among the many biomedical applications of such type I collagen-fibrin mixed gels, those requiring the co-culture of two cell types with distinct affinity for these proteins, such as vascularization of tissue engineering constructs, appear particularly promising.
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Submitted on : Tuesday, November 3, 2020 - 10:53:35 AM
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Thibaud Coradin, Kun Wang, Thalie Law, Lea Trichet. Type I Collagen-Fibrin Mixed Hydrogels: Preparation, Properties and Biomedical Applications. Gels, MDPI, 2020, 6 (4), pp.36. ⟨10.3390/gels6040036⟩. ⟨hal-02986665⟩

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