Figure 1.

Particle size and zeta potential of Poly/PTX-SAs. 50 μL of Poly/PTX-SAs were dispersed in 1 mL distilled water or 1× PBS and probe sonicated for 30 s. These solutions were measured for particle size and zeta potential using dynamic light scattering at 25 °C using Zetasizer (Nano ZS, Malvern Instruments, Malvern, UK). (A) Average particle size of polymer PTX-SAs was measured for 3 min exhibiting the smallest size for PVP/PTX-SAs (140.53 nm). (B) Zeta potential of Poly/PTX-SAs was measured in 1× PBS and average of 3 readings (each reading = 30 runs) were presented. Data represented as an average of three readings that were recorded independently with error bars represented as standard error of the mean.