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Table 1 Hydrodynamic size distribution of GNPs

From: Size-dependent cellular toxicity and uptake of commercial colloidal gold nanoparticles in DU-145 cells

Sample Size (nm) Zeta potential (mV)
20 nm GNP 24 ± 2.1 −54.4
Protein coated 20 nm GNP 66.61 ± 2.3 −18.2
200 nm GNP 213.5 ± 2.9 −49.3
Protein coated 200 nm GNP 261.9 ± 5.3 −13.3