Table 5. Surface Charge and Particle Size Alterations in GO and rGO upon Protein Binding: A Dynamic Light Scattering Analysis.

GO-protein binding	ζ potential [mV]	size distribution [nm]
GO reagent [bare GO]	–45.0 ± 1.2	1761 ± 375
GO reagent + iHSA	–38.5 ± 1.0	1953 ± 465
GO reagent + lysozyme	–6.6 ± 0.0	3320 ± 686
rGO reagent [bare rGO]	–39 ± 2.0	2860 ± 476
rGO reagent + iHSA	–25.1 ± 8.0	2849 ± 827
rGO reagent + lysozyme	–29.6 ± 0.1	2628 ± 874