Fig. 1
From: Immunotoxicity assessment of CdSe/ZnS quantum dots in macrophages, lymphocytes and BALB/c mice
Characterization of CdSe/ZnS QDs and uptake of CdSe/ZnS QDs by macrophages. A The photoluminescence emission and absorption spectra. B TEM image of CdSe/ZnS QDs. C The hydrodynamic size distribution of the CdSe/ZnS QDs. D Fluorescent images of RAW264.7 macrophages treated with CdSe/ZnS QDs for 24 and 48 h. Left, middle and right panels are DAPI signal, QDs signal and merged images, respectively. The cell nucleus was stained with DAPI (pseudo-colored in blue) and the signals from the QDs were in red