“…Through the enhanced permeability and retention effect (EPR) of solid tumors or surface coupling of targeting ligand, nanocarriers can realize the selective administration of tumor tissue by passive or active targeting to improve the bioavailability of anti-cancer drugs, enhance the therapeutic effect, and reduce the toxic side effects. [93][94][95] Compared with chemical methods to prepare nanocarriers, mineralizationbased methods are characterized by good biocompatibility, facile nature, and low cost, having high feasibility and great potential from laboratory research to clinical application. Moreover, tumor tissues showed significantly different physiological properties, such as slight acidity, hypoxia, GSH overexpression, and enzyme overexpression.…”