Figure 1.

Composition of the 4-tetracarboxyphenyl porphyrin (TCPP)-labeled, dopamine-anchored tetraethylene glycol ligands. Nanoparticles of 7.2 nm (outer diameter) require approximately 120 dopamine-anchored ligands (assuming a monolayer).

Balivada et al. BMC Cancer 2010 10:119   doi:10.1186/1471-2407-10-119
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