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 autocorrelation function of the trapped bead fluctuations with their double exponential fits (solid line) is plotted for different motile bacterial concentration φ = 0.001, 0.01, and 0.1 using the 200-mW laser trap with k200 = 1.7 × 10−6 N/m. (Inset) Single exponential fit to the ACF of trapped bead fluctuations without bacteria is shown at k200 and k50.
