Table 2. Characterization of citrate stabilized AuNPs and PEtOx-AuNPs.

Sample	ζ-potential, mVa	λ max, nmb	PTE%c
AuNPs	−35	528	83
PEtOx-AuNPs	−24	536	91

^a ζ-potential values are represented as mean ± standard deviation (n = 3).

^bBy UV-vis spectroscopy.

^cBy Zscan-TLS.