Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
The effect of ZO essential oil on HeLa cell viability. The viability of HeLa cervical cancer cells upon being treated with ZO essential oil for 24 h was tested by an MTT assay. The treatment concentrations of ZO essential oil were prepared by performing a 2-fold dilution before addition to the cells. The experiment was performed three times (triplicate each time).
