Figure 3.
Size and P.I. of NP suspension stored for different times at 4 °C in refrigerator (mean values ± s.e.; n = 3).
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.