Fig. 4From: Highly tailorable gellan gum nanoparticles as a platform for the development of T cell activator systemsCharacterization of the interaction of npGG aAPCs with murine T cells. A npGG aAPCs interaction and T cell interaction schematics. B Confocal images of 100 μg of npGG-α-CD3 surface-bound to CD4+ T cells after 3 days of culture. Green fluorescence shows CD4+ T cells, while red represents npGG surface bound α-CD3, scale bar = 50 μmBack to article page