1Hong Wu, Lin Zhu, Vladimir P. Torchilin. pH-sensitive poly (histidine)-PEG/D SPE-PEG co-polymer micelles for cytosolic drug de livery [J]. Biomaterials, 2013, 34:1213-1222..
3Shy Chyi Wuang, Koon Gee Neoh, En-Tan g Kang,etal. Acid- Sensitive Magnetic Nanoparticles as Potential Drug Depots [J]. AIChE Journal, 2011, 57(6):1638- 1645.