Fig. 5From: Sequential drug delivery by injectable macroporous hydrogels for combined photodynamic-chemotherapyCell viabilities of L929 (a) and 4T1 cells (b) after respectively incubation with hydrogel, cell viabilities of 4T1 cells after incubation with hydrogel for 48 h under irradiation (c), confocal microscopy imaging of 4T1 cells after incubation with hydrogel under irradiation (red: dead cells, green: live cells) (d). Scale bar: 100 nm, *p < 0.05, **p < 0.01Back to article page