Figure 2.
The particle sizes of the DTX loaded micelles (the drug feeding was 5%) based on different molecular weight of copolymers (A); the maintaining period of DTX loaded micelles based on the MPEG2k-PDLLA4k, MPEG2k-PDLLA4k-PLL0.5k, MPEG2k-PDLLA4k-PLL1k, MPEG2k-PDLLA4k-PLL2k and MPEG2k-PDLLA4k-PLL4k (B); the MPEG2k-PDLLA1.7k-PLL0.5k and MPEG2k-PDLLA4k-PLL0.5k (C) with the 5% of drug feeding; the entrapment efficiency change (D) and the maintaining period (E) of DTX/MPEG2k-PDLLA4k-PLL1k micelles with the increased of drug feeding, respectively. (“*” was indicated the particle size of micelle could not be determined.)