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.
Titration of PLGA–PEI–PAA nanoparticles with HCl (25 mM) for different pH values during assembly of PAA. PAA assembly at pH 7 (blue), PAA assembly at pH 5 (green), PAA assembly at pH 3 (red). Experiments were performed in triplicate, average values ± standard deviations are shown.
