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.
Images of a core-shell film obtained after 60 min of annealing at 90 °C, showing (A) transparency; (B) flexibility; and (C) strong fluorescence emission under excitation at λexc = 450 nm. Reprinted with permission from [9]. Copyright 2009, American Chemical Society.
