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.
In vivo noninvasive PA images of the cerebral cortex acquired (A) before the injection, and (B) ~2 h after the final of PEGylated nanocages via tail vein. (C) A differential image (34B subtracted from 34A). (D) An open-skull photograph of the rat’s cerebral cortex. (E) Quantification of the PA signal enhancement after the injection as a function of time. (Reprinted with permission from ref 90. Copyright 2007 American Chemical Society.)
