Figure 4.
Stability of (a) empty and (b) drug-loaded formulations upon dilution in water (1:100) over a period of four weeks.
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.