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Structure of the three dendrimers used in this study. The cyclotriphosphazene core (N3P3) is in black, the poly(phosphorhydrazone) (PPH) branches (including the point of divergence) are in blue. The tyramine-based (in blue) azabisphosphonate (ABP) surface groups are in orange. (A) The ABP dendrimer. (B) The ABP-Julolidine dendrimer. (C) The ABP-near infrared reflectance (NIR) dendrimer.
