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. Author manuscript; available in PMC: 2022 Jun 1.
Published in final edited form as: Biomaterials. 2021 Apr 8;273:120792. doi: 10.1016/j.biomaterials.2021.120792

Fig. 3.

Fig. 3.

pH responsiveness of I-R-Ap-AcDEX2 NPs. (a) Degradation of AcDEX2 NPs at pH values of 7.4, 6.0 or 5.5 at RT and 37 °C in 0.1 M PBS as monitored by UV–Visible absorbance at 600 nm. (b) Ap and (c) R837 release profiles from I-R-Ap-AcDEX2 NPs in PBS with pH 5.5 and 7.4 at 37 °C.