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. Author manuscript; available in PMC: 2021 Nov 1.
Published in final edited form as: Adv Drug Deliv Rev. 2020 Jun 29;156:188–213. doi: 10.1016/j.addr.2020.06.020

Fig. 3.

Fig. 3.

(a) Schematic depiction of AuNP carrier and glutathione-mediated surface monolayer exchange reaction to release the dye. (b) Schematic representation and fluorescence images using glutathione (GSH-OEt) as an external stimulus to trigger release of HSBDP from AuNPs. GSH-OEt concentrations were varied from 0, 5, and 20 mM in panels 1, 2, and 3, respectively (Adapted from ref. 71).