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.
Localization of nanoparticles in mouse airway. After 48 hours delivery, fluorescence microscopy examination revealed FITC-labeled nanoparticles within the airway epithelium and subepithelial structures. Nuclei are in blue. (Magnification, 20×)
