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.
Schematic diagram of the EFA-NI biosensor. The target viruses are sandwiched by antibody-modified magnetic particles and optical markers. Using magnets and near-field illumination, the complexes, including the target viruses, are detected as moving optical signals.
