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.
A. Examples of photoactivatable dyes that undergo irreversible fluorescence off to ON (i.e., turn-on), B. examples of photoswitchable dyes with reversible fluorescence on and off, and C. examples of photoconvertible dyes with irreversible change in fluorescence from one to the other (e.g., change from green to red fluorescence) upon light illumination.
