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.
Transmission electron micrograph of a sample of the pellet obtained by ultracentrifugation of Coon's Modified Ham's F-12, 6-hormone medium used to grow FRTL-5 cells. Objects in the frame exhibit the characteristic shape of microvesicles under transmission electron microscopy, a spherical shape between 30 and 100 nm in diameter.
