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. 2022 Sep 28;23(19):11462. doi: 10.3390/ijms231911462

Figure 6.

Figure 6

Three types of DBB—PEG(COOH)3 branched polyanhydrides: (A) structure of polyanhydrides containing 5–30 wt% of PEG_COOH; (B) structure of polyanhydrides containing 40–60 wt% of PEG_COOH; (C) structure of polyanhydrides containing ≥70 wt% of PEG_COOH.