Fig. 1. Nanoparticle characterization: (A) Dynamic Light Scattering (DLS) demonstrate the size distribution of Cy5-labelled p(HEMA-ran-GMA) nanoparticles (NP) and transferrin (Tf)-functionalized nanoparticles (Tf-NP). Light scattering intensity percentages for NP and Tf-NP (n = 3) are normalized to 1. Representative transmission electron microscope (TEM) images of NP are depicted in panels (i) 5000× and (ii) 20 000× magnifications. Scale bar = 500 nm. (B) Tabulated data summarizes the mean hydrodynamic diameters (±standard deviation (S.D.)), nanoparticle polydispersity (PDI), and nanoparticle surface charges in terms of zeta potential measurements (±S.D.) of NP and Tf-NP (n = 3).