Figure 4

(a) Hemolytic activity of Si/SiO2 QDs in various biological media. (b) Representative confocal microscopy images with hypericin staining of fresh RBCs in 0.9% saline without QDs (control) and RBCs incubated for 24 h with QDs suspended in various biological media. Note altered RBCs after incubation with QDs suspended in MEM: degmacytes - a, stomatocytes - b and echinocytes - c.