Figure 2.
Scanning electron microscope images of (A) mercury (II)-imprinted polymeric beads and (B) nonimprinted polymeric beads. Republished with permission of Elsevier, from [23]; permission conveyed through Copyright Clearance Center, Inc.
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.