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.
Long-term (14 hr) time-lapse imaging of primary human T cells (green) embedded in collagen around bead-stimulated human T cells (magenta). (Left) Control (IgG-coated) beads. (Right) Activating (anti-CD3/CD28-coated) beads. Scale bar, 500 µm. Time in h:min:s.
