An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Pitek AS , Park J , Wang Y , Gao H , Hu H , Simon DI , Steinmetz NF .Pitek AS , et al.Nanoscale. 2018 Sep 13;10(35):16547-16555. doi: 10.1039/c8nr02861c.Nanoscale. 2018.PMID: 30137088Free PMC article.