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.
(A) The formation process of the nanoparticles. (B-D) TEM images of (B) UCNP@dSiO2, (C) UCNP@dSiO2@mSiO2, and (D) UCNP@hmSiO2. (E-H) STEM images and corresponding elemental (F, Si) mappings of UCNP@hmSiO2. Reproduced with permission from Ref188.
