Fig. 6
From: Dual-drug loaded nanoneedles with targeting property for efficient cancer therapy
A In vivo DiR fluorescence imaging of HeLa tumor-bearing BALB/c nude mice after intravenous injection of the DiR-NDs (a) or DiR-DDNDs (b) at 1.0 and 24 h post-injection. Circles indicated the sites of tumors. B Ex vivo fluorescence intensity of tumors and normal organs and tissues harvested from HeLa tumor-bearing Balb/c nude mice intravenously treated with the DiR-NDs (a) or DiR-DDNDs (b) at 24 h post-injection. Data are presented as mean ± SD (n = 3). *P < 0.05