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.
Optimal E. coli recipient cell concentration for efficient elastic body exposure-mediated plasmid (pUC18) transfection. Cell concentrations were determined based on the turbidity of the chrysotile-plasmid cell mixture (CPCM) at 550 nm. Each value represents the mean of three independent experiments. The error range was 2.1–6.2% of averages.
