Scheme 1.
Synthetic schemes of acid valve assembly and incorporation of targeting agent. NVMSN denote particles that are modified with nanovalve only, and Tf-NV-MSN are particles that have both transferrin and nanovalve derivatizations.
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.