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. 2016 Jan 14;9(1):47. doi: 10.3390/ma9010047

Figure 3.

Figure 3

SEM images of PLA/PLA-b-PEG samples containing different amounts of biotin: (A) 0 wt %; (B) 5 wt %; (C) 10 wt % and (D) 18 wt %.