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Figure 3 | Nanoscale Research Letters

Figure 3

From: CdTe quantum dots with daunorubicin induce apoptosis of multidrug-resistant human hepatoma HepG2/ADM cells: in vitro and in vivo evaluation

Figure 3

Measurement of cellular fluorescence and drug uptake. (A) Inverted fluorescence microscopy of HepG2/ADM cells; (a) control, (b) 4 × 10-6 mol/L DNR, and (c) 4 μM Cdte QDs + 4 × 10-6 mol/L DNR; bar, 100 μm. (B) Differential pulse voltammetry study of DNR residue outside HepG2/ADM cells after cell treatment for 2 h. (a) PBS; (b) 4 μM Cdte QDs + 4 × 10-6 mol/L DNR treatment and cells for 2 h; and (c) 4 μM DNR. Pulse amplitude, 0.05 V; pulse width, 0.05 s; and pulse period, 0.2 s.

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