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. Author manuscript; available in PMC: 2021 May 10.
Published in final edited form as: J Control Release. 2020 Feb 12;321:363–371. doi: 10.1016/j.jconrel.2020.02.021

Figure 2.

Figure 2.

Nanoparticle characterization. A) Size and zeta potential of GSH sensitive NPs via dynamic light scattering (DLS). B) TEM (left; scale bar: 500nm) and SEM (right; scale bar: 500nm) images of GSH sensitive NPs observe smooth morphology. C) NP stability evaluated by changes in the NP size over time in gamble’s solution (stimulated lung fluid), 0.9% saline, and complete cell culture media (RPMI) up to 48 hours. D) CGPUs exposed to 5 mM and 10 mM of GSH experienced significantly higher drug release, compared to 0mM of GSH.