Fig. 4
From: Fe-doped carbon dots: a novel biocompatible nanoplatform for multi-level cancer therapy
The effect of Fe-CDs on tumor cell viability and apoptosis. a Prussian blue staining of Fe in tumor cells incubated with Fe-CDs for different time. b Cell viability of tumor cells incubated with Fe-CDs and FeG by MTT assay. c Cell apoptosis of tumor cells incubated with different concentration of Fe-CDs by flow cytometry. d Western blot of expression levels of apoptosis-related proteins in tumor cells treated with Fe-CDs at different incubation time. e Immunohistochemical staining of apoptosis marker in cancerous tissues treated with PBS (left) and Fe-CDs (right). (ns: not significant, **P < 0.01, ***P < 0.001, ****P < 0.0001, n = 6)