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. Author manuscript; available in PMC: 2019 Aug 14.
Published in final edited form as: Macromolecules. 2018 Jul 30;51(15):5944–5949. doi: 10.1021/acs.macromol.8b00846

Figure 3.

Figure 3.

Characterization of BCP-films degradability. In vitro degradation of a T-50 thin film for different immersion times in PBS at 37 °C and in 0.5 M NaOH solution at 25°C. (a) Plot of residual PCL over time, (b) UV-vis spectra of T-0 and T-50 in chloroform for pristine films (solid line) and after 12 weeks of immersion in PBS (dotted line) normalized to the A0–1 peak of the pristine film, with the A0–0 peak present at 798 nm and the A0–1 peak present at 720 nm, (c) AFM height images of thin films before and after 12 weeks of immersion in PBS. Ra is the average surface roughness of the scanned area, scale bar, 1 μm.