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.
Average radial concentration distribution, ϕ(r), of hydrophobic core, PEG, and ibuprofen. The concentration profiles are shown after ibuprofen loading for the nanogel core (ϕ′nGel), ibuprofen (ϕIBU), corona PEG chains (ϕ′PEG), and the nanogel core combined hydrophobic copolymer arm segments (ϕ′nGel–HCP) for the four systems under study.
