National key Basic Research Program(Grant No.2013CB932501);National Natural Science Foundation of China(Grant No.81273454 and 81473156);Beijing National Science Foundation(Grant No.7132113);Doctoral Foundation of the Ministry of Education(Grant No.20130001110055)
Surface modification may have important influences on the penetration behavior of nanoscale drug delivery system. In the present study, we mainly focused on whether cell targeting or cell penetration could affect pene...