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) UV–vis absorption spectra of LENA IN PEG-AuNPs (black line) and FA@LENA IN PEG-AuNPs (red line); (B) normalized Raman spectra of LENA IN PEG-AuNPs before (black line) and after binding of folic acid onto the nanoparticles surface (red line). The arrows indicate those peaks that shifted following folic acid conjugation. Experimental conditions: λexc = 785 nm; laser power, 20 mW; 1200 T of 180 s.
