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Injectability analysis of alginate-based hydrogels: Extrusion force needed to inject the hydrogels (SD and SD + 10% CB) into the artificial cerebrospinal fluid, using Hamilton syringe with 31G needle. The hydrogels were measured freshly prepared and after 45 min incubation in aCSF. Data presented as mean (±SD), n = 2. **** p < 0.0001, ns—not significant, compared to water.
