“…Polymeric micelles are a kind of nanoparticles that have potential application prospect in anticancer drug delivery, owing to their advantages such as drug solubilization, good permeability, long time circulation in vivo , and easy functional modification. − By introduction of pH-sensitive groups, temperature-sensitive groups, redox-sensitive groups, etc., various stimulus-responsive polymeric micelles can be prepared. − They can take advantage of the difference between the normal cellular microenvironment (pH ≈ 7.4, 36–37 °C, low glutathione (GSH)) and the tumor tissue microenvironment (pH ≈ 5.0–6.5, 37–42 °C, high GSH) to achieve the controlled release of anticancer drugs.…”