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.
Synthesis of fluorescein-labeled APV-PEG (APF) and Bac7 CPP-PEG NCs (BPF): (A) APV-PEG3.4kDa-FITC; (B) Structure of Bac7 analog; and (C) Bac7 CPP-PEG3.4kDa-FITC. Reagents and conditions: (i) DMF containing EDCI and HOAt, room temperature, 16 h; and (ii) DMF, room temperature, 4 h. PEG-fluorescein is linked to APV via an amide bond and to Bac7 via a thioether bond.
