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.
Multicellular MSC spheroids generated using different cell seeding densities. (a–c) Transmission electron micrographs clearly indicate nanoparticles located in vesicle within the cell cytoplasm, while (d–f) scanning electron micrographs show the general morphology and dimensions of the multicellular MSC spheroids. Yellow arrows, nanoparticles within vesicles; white arrows, cellular projections.
