Figure 4.
Zeta potential of the different CDs: a) 160-50, b) 180-40, c) 200-30, and d) 220-20. All four CDs have a negative surface charge.
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.