Figure 5.

In vitro release profiles of PTX-MPEG-PLA NPs versus PTX-PLA NPs in PBS (1/15 M, pH 7.4). The blue line represents the second phase of burst release. The purple arrows showed their burst start and endpoint.

Cui et al. Nanoscale Research Letters 2013 8:301   doi:10.1186/1556-276X-8-301
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