Table 1. Z potential, diameter and polydispersion index (PI) of naked and functionalised nanoparticles.

	Z potential (mV)	Diameter (nm)	PI
MNP	−27.56 ± 1.85	61.0 ± 1.87	0.26 ± 0.04
MNP-rVEGF	−34.7 ± 2.21	128.57 ± 0.35	0.22 ± 0.04
MNP-PLL	+ 14.68 ± 0.90	299.17 ± 19.53	0.29 ± 0.01

n = 3. The full graphs are provided in Supplementary Figures S1–4.