Abstract: The tumor microenvironment has characteristics with low pH value, high temperature, high con-centration of glutathione (GSH) and so on. By using these characteristics as a stimulating factor, design of sensitive nano drug delivery system could significantly improve the therapeutic effect of anti tumor drugs. This paper mainly discusses the research progress of temperature sensitivity, pH sensitivity, redox sensitivity and multiple-sensitivity nano drug delivery systems, to provide new ideas for design of nano delivery system and cance...
