Figure 2.
Schematic illustration of ratiometric PA probes for sensing in vitro and in vivo and the PA signal changes with the concentration of analytes. Adapted with permission from 68, Copyright 2019 American Chemical Society.
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.