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.
Possible interactions of NPs with the intestinal barrier and the different transport mechanisms of NPs uptake: (A) Non-receptor mediated transcellular transport (B) Paracellular transport (C) Receptor-mediated transcellular endocytosis (D) Receptor and M cell medicated phagocytosis (E) Non-receptor M cell mediated phagocytosis.
