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Biodistribution of fluorescent protein nanoparticles ex vivo. a) Representative ex vivo fluorescence image of organs 24 h post fluorescent protein nanoparticle injection (In Vivo Xtreme Imaging System (Bruker)). b) Biodistribution analysis of nanoparticle in mice (n = 3) by ex vivo organ fluorescence. X-axis: 1 - brain, 2 - heart, 3 - liver, 4 - spleen, 5 - lung, 6 - kidney, 7 - stomach, 8 - intestine, and 9 -tumor. Error bars are ± SEM.
