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.
Agar diffusion competition assay for conjugates 3b and 3c and siderophores 3a, 3a-Fe, DFO-B, and FO-B tested against S. aureus SG511. Siderophores 3a, 3a-Fe, DFO-B, and FO-B clearly antagonize the anti-S. aureus activity of the fluoroquinolone conjugate 3c (c,d), but not the β-lactam conjugate 3b (a, b). Images are not to actual scale.
