Fig. 4. The in vitro cytotoxicity of 4-(N)-GemC8-SLNs and 4-(N)-GemC18-PLGA-NPs in TC-1-GR cells.
(A) The IC50 values of the 4-(N)-GemC8-SLNs and 4-(N)-GemC18-SLNs in TC-1-GR cells (n = 4). aP < 0.01. (B) The cytotoxicity of the 4-(N)-GemC18-PLGA-NPs in TC-1-GR cells after 48 h of incubation (n = 5). bP < 0.001. (C) The release profiles of GemC18 or GemC8 from 4-(N)-GemC18-PLGA-NPs, 4-(N)-GemC18-SLNs, or 4-(N)-GemC8-SLNs (n = 2–3).