An official website of the United States government
Here's how you know
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.
Fig. 3. (a) Two-dimensional SA-β-gal fluorescent probes. (b) Fluorescence response at a short wavelength (534 nm), and (c) at a long wavelength (562 nm), (d) cell imaging of SA-β-gal and cancer-associated β-gal.