Table 1: ZnO Nanoparticle Characterization.

Dynamic light scattering was utilized to measure nanoparticle hydrodynamic size, zeta potential and polydispersity index (PDI) in water and DMEM cell culture media; TEM was used to measure nanoparticle diameter (N=3).

	H2O			DMEM			TEM
ZnO	Hydrodynamic size (d.nm)	Zeta potential (mV)	PDI	Hydrodynamic size (d.nm)	Zeta potential (mV)	PDI	Particle Size (d.nm)
Pristine	213.40 ± 12.10	35.2 ± 1.20	0.34 ± 0.03	279.80 ± 48.90	−14.00 ± 0.65	0.46 ± 0.07	37.00 ± 11.00
Annealed	224.60 ± 28.70	−16.97 ± 1.00	0.57 ± 0.10	209.60 ± 42.10	−7.96 ± 3.21	0.68 ± 0.10	57.00 ± 14.00
Oxidized	230.10 ± 11.10	18.40 ± 0.90	0.45 ± 0.03	197.70 ± 41.60	−9.67 ± 0.23	0.55 ± 0.10	57.00 ± 20.00
Reduced	200.70 ± 15.90	10.08 ± 0.60	0.71 ± 0.14	117.90 ± 67.30	−6.05 ± 0.21	0.92 ± 0.13	54.00 ± 16.00