Fig. 2.

In vitro stimuli-responsiveness of Au-CDs to GSH and H₂O₂. (A) Schematic diagram of Au-CDs disintegrated by H₂O₂ and GSH. TEM image of (B) integral Au-CDs and dis-assemble by (C) H₂O₂ and (D) GSH. (E) PL spectra of Au-CDs during co-incubation with H₂O₂. (F) i-t curve of Au-CDs modified electrodes in PBS solution containing Gly (Glycine), L-Cys (l-Cysteine) and GSH. (G) PL spectra of Au-CDs during co-incubation with GSH.