Fig. 4

Representative images of different virtually H & E stained tissue types. Primary tumor (A) and cancerous cells formation after injection of Hepa 1–6 cell line to BALB/c mice. H & E staining indicated the distant metastasis of cancer cells to the liver (C, D), cancer cells to the Lung(F, G) and brain (I, J). Targeted delivery of curcumin via TDC to liver (D) and brain (J). Metastatic tumors in liver, red dashed circles indicate tumors position (K).