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. Author manuscript; available in PMC: 2019 Jun 21.
Published in final edited form as: Mol Pharm. 2018 Aug 29;15(10):4756–4763. doi: 10.1021/acs.molpharmaceut.8b00708

Figure 1.

Figure 1.

a) Schematic representation of IPUL-CST. b) TEM images of IPUL-CST in distilled water. c) Drug release profile of IPUL, IPUL-CS, and IPUL-CST, at pH 1.2 (for 2 hours incubation) and pH 7.4 (after 2 h incubation at pH 1.2). Protection of insulin at d) pepsin (pH 1.2), e) trypsin (pH 6.8), and f) α-chymotrypsin (pH 7.8) (n=3). *P <0.01, **P <0.001.