Fig. 1
From: Quantum dots as targeted doxorubicin drug delivery nanosystems in human lung cancer cells
Transmission electron microscopy images of the QD nanocrystals (a) and their photoluminescence spectra for dispersions in water (b). QD Ag–In–Zn–S nanocrystals modified with: 11-mercaptoundecanoic acid (MUA), Cys L-cysteine, LA lipoic acid. CQD = 5 mg·mL−1; λex. = 350 nm; PMT voltage: 700 V; PMT integration time: 20 ms; scan speed: 600 nm·min−1