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.
Recognition tunneling: Two closely spaced electrodes are functionalized with recognition molecules (ICA) that form specific hydrogen bonds with DNA bases (shown here for thymine). Bonding is different for each base, resulting in characteristic current signals (I) when a bias (V) is applied across the gap.
