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. 2019 Apr 19;5(2):23. doi: 10.3390/gels5020023

Figure 2.

Figure 2

Ca-saturated alginate hydrogels (1.0% w/v). (A): POA (P0 = 0.02), (B): POA (P0 = 0.04), (C): POA (P0 = 0.08), (D): Mixed hydrogels of POA (P0 = 0.08) and stipe alginate in fractions of WPOA = 0.25, 0.50 and 0.75. (E): Epim POA-MeOTyr solely, (F): Mixed hydrogels of Epim POA-MeOTyr and stipe alginate (WPOA* = 0.50). (G): Hydrogels of solely stipe alginate. Abbreviations: POA: Partially periodate oxidized alginate. P0: Fraction of oxidized residues (degree of oxidation). Epim POA-MeOTyr: Mannuronan grafted with l-Tyrosine methyl ester and thereafter epimerized.