Fig. 8From: In Vivo Bio-distribution and Efficient Tumor Targeting of Gelatin/Silica Nanoparticles for Gene Delivery a In vivo fluorescence images of A549 tumor-bearing BALB/c mice at different time points post tail-vein injection of rhodamine-labeled GS-PEG, GS-PEG-Apt, and GS-PEG/HA2-Apt NPs. b Ex vivo fluorescence images of excised organs at 1.5 h post tail-vein injectionBack to article page