Fig. 1.
(A) The chemical structure of the Eu-G3P4A18N dendrimer. Substitution of the end branches is designated by R, glycine-conjugated 4-amino-1,8-naphthalimide (shown at the bottom right corner). The gray spheres indicate the hypothesized coordination of eight lanthanide cations (Eu3+) within the dendrimer nanocomplex (modified dendrimer size approximately 3 nm). (B) 1H-NMR spectrum and peak assignment of G3P4A18N.