Figure 2.

TEM images of sorafenib-incorporated nanoparticles. Polymer:drug empty nanoparticle (a), 40:2 (b), 40:5 (c), 40:7 (d) nanoparticles.

Kim et al. Nanoscale Research Letters 2012 7:91   doi:10.1186/1556-276X-7-91
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