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.
The SEM (a) and TEM (b) images of Fe3O4 nanoparticles prepared with the mixture of SDS (4.0 mmol) and PEG (0.4 g, ∼7 mmol and TEM (c and d) images of Fe3O4 nanoparticles synthesized with different protective agents under typical reaction conditions. (c) 4.0 mmol of SDS. (d) 0.4 g (∼7.0 mmol of repeating units) of PEG. SEM – Scanning electron microscopy, TEM – Transmission electron microscope; PEG – Polyethylene glycol
