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(a) SEM micrographs of L-PCLs, XPS data (b) C/O atomic ratio of L-PCLs, and (c) F/C atomic ratio of L-PCLs in (▽) PBS and (+) water; the results are shown as average value ± standard deviation (n = 3). SEM micrographs after L-PCLs immersion in PBS for (d) 7 days, (e) 14 days, and (f) 21 days.
