Figure 3.
Emission spectra of the ssDNA-UCNP@SiO2 nanoparticles (0.04 mg/mL) with different concentrations of GQDs (λexc = 980 nm).
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.