Assessment of Cellular Uptake Efficiency According to Multiple Inhibitors of Fe3O4-Au Core-Shell Nanoparticles: Possibility to Control Specific Endocytosis in Colorectal Cancer Cells

Table 1 Zeta potential measurements performed with bare Fe₃O₄-Au core-shell NPs, PEGylated NPs, nanobody-tagged NPs, and dye-labeled NPs at pH 7.4, presented as the mean of five runs ± SD

	Fe₃O₄-Au NPs		PEGylation	Anti-Muc1-Ab tagging	Cy3 labeling
Zeta potential (ζ) (mV)	− 19.8 ± 6.68	2 K	− 44.9 ± 8.19	− 38.5 ± 5.61	− 12.5 ± 7.25
		5 K	− 40.7 ± 7.88	− 23.3 ± 8.61	− 17.7 ± 3.94
		10 K	− 39.6 ± 8.74	− 31.8 ± 7.37	− 10.6 ± 4.72