Table 1
DLS results, polydispersity index, and zeta potentials of citrate-capped gold colloids, COOH-PEG-coated AuNPs, and OVA AuNVs
	Size (nm)	PDI	Zeta (mV)
Colloids	33.5 ± 6.3	0.124	−37.6 ± 6.5
COOH-PEG-AuNPs	61.5 ± 6.2	0.201	−27.6 ± 12.2
OVA AuNVs	77.9 ± 9.5	0.305	−0.7 ± 6.7

Lin et al. Nanoscale Research Letters 2013 8:72   doi:10.1186/1556-276X-8-72