Figure 5.

Sedimentation photographs of CCNSs, ECCNSs, and free etoposide in RPMI-1640 medium. After standing for 10 min (a), 1 h (b), and 2 h (c).

Peng et al. Nanoscale Research Letters 2013 8:321   doi:10.1186/1556-276X-8-321
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