Figure 2.

(A) TEM images of biodegradable FCSP MOFs immersed in 10 mmol/L GSH aqueous solution for Days 0, 1, 3 and 5. (B) Liquid chromatography-mass spectrometry (LC–MS) results about the reaction between FCSP MOFs and GSH after 0, 3, and 5 days. (C) UV–Vis analysis of the Fenton reaction for RhB decolorization of different groups to demonstrate the ability of ·OH generation and (D) their relative quantification at 553 nm. (E) UV–Vis analysis of the Fenton reaction for RhB decolorization of different groups to demonstrate the ability of heat and Cu²⁺ enhanced ·OH generation and (F) their relative quantification at 553 nm. (G) Release kinetics of DOX from FCSP@DOX MOFs in PBS at different pH without or with 10 mmol/L GSH and (H) their relative quantification of DOX release at 72 h. Date are presented as mean ± SD (n = 3).