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.
Xin H, Li Y, Liu YC, Zhang Y, Xiao YF, Li B.Xin H, et al.Adv Mater. 2020 Sep;32(37):e2001994. doi: 10.1002/adma.202001994. Epub 2020 Jul 26.Adv Mater. 2020.PMID: 32715536Review.
Xin H, Lei H, Zhang Y, Li X, Li B.Xin H, et al.Opt Express. 2011 Jan 31;19(3):2711-9. doi: 10.1364/OE.19.002711.Opt Express. 2011.PMID: 21369092Free article.