Figure 6: Cooperative tumour cell membrane-targeted phototherapy.

(a) Tumour growth inhibition by cooperative membrane-targeted phototherapy in 4T1 tumours. (b) Histological observation of 4T1 tumours visualized using haematoxylin and eosin staining at day 2 after cooperative membrane-targeted phototherapy. Scale bar represents 100 μm. (c) Tumour growth inhibition by cooperative membrane-targeted phototherapy in MDA-MB-231 tumours. Arrowheads indicate laser irradiation after two-step targeted delivery. Data are mean±s.e.m. (n=6 in each group, ***P<0.001 for treatment compared with the other groups using one-way analysis of variance (ANOVA) with Tukey’s post hoc test).