Figure 1.

(a) Schematic illustration of the FeNP-BSA. (b) $\mathsf{\zeta }$-potential of non-labeled (red) and BSA-labeled (green) FeNP. Size distributions of (c) non-labeled and (d) BSA-labeled FeNP. TEM images of magnetic nanoparticles (e) before and (f) after BSA conjugation. Scale bars are 50 nm.