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. Author manuscript; available in PMC: 2018 Sep 1.
Published in final edited form as: Wiley Interdiscip Rev Nanomed Nanobiotechnol. 2017 Feb 15;9(5):10.1002/wnan.1450. doi: 10.1002/wnan.1450

Fig. 22.

Fig. 22

Glutathione reductase (GR) induces the conversion of GSSG to GSH that facilitates the release of encapsulated peptide due to the cleavage of the disulfide bond linking the polymer carrier (PMA) and the peptide (KP9).