was measured using a Nanopartica Nanoparticle
Analyzer SZ-100 (Horiba Scientific). For size measurement, 5 μL
of each sample (AuNP, AuNP-HASH, AuNP-HASHDox, PNC, and AuNP-PEG)
were diluted up to 2 mL with water (pH 6.5) in 3 mL cuvettes. Size
measurements were performed thrice with each trial done in triplicates,
which then were averaged. For zeta potential measurements, the samples
were diluted in water and dispersed in the zeta potential capsules.
The samples were measured by using a Nanopartica Nanoparticle Analyzer
SZ-100 (Horiba Scientific).