Viability of HUVEC exposed to TritionX100 (negative control), TiO2,
SiO2, and PS NPs. HUVEC were exposed in triplicate to surface
area-matched concentrations of TiO2, SiO2, and PS NPs for
24 hours. Viability was then measured using CCK-8. (Error bars represent mean
± standard deviation (SD) of the sample. Data were analyzed with a one
way ANOVA, no results were significantly different from untreated HUVEC, n
= 3, p > 0.05.)