Fig. 4From: NIR-laser-triggered gadolinium-doped carbon dots for magnetic resonance imaging, drug delivery and combined photothermal chemotherapy for triple negative breast cancerThe cellular viability of 4T1 cells a and MDA-MB-231 cells b after various treatment; fluorescence images of the 4T1 cells c and MDA-MB-231 cells d stained with calcein-AM and PI after each treatment. Data expressed as mean ± SD, n = 3, *P < 0.05; **P < 0.01;***P < 0.005. P values represent the outcome of Multiple Comparisons in Analysis of Variance (ANOVA)Back to article page