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. 2021 Dec 10;7(50):eabj7857. doi: 10.1126/sciadv.abj7857

Fig. 3. Cross-sectional images of different hydrogels using SEM analysis.

Fig. 3.

(A to C) SEM images of AG, BAG, and CAG. (D to F) Magnified images of AG, BAG, and CAG. White arrows in (E) and (F) indicate the BG and NBG particles on the hydrogel surface.