Patent ID: 8585973

Claim:
A method comprising: providing a base with a fluidic channel and a plurality of nano-sensors; and forming each of the plurality of nano-sensors by: forming a first nanoneedle along a surface of the base, the first nanoneedle having a first end in a first region, forming a dielectric on the first nanoneedle, and forming a second nanoneedle on the dielectric, the second nanoneedle separated from the first nanoneedle by the dielectric and having a first end adjacent the first end of the first nanoneedle, wherein the plurality of nano-sensors and the fluidic channel are configured and arranged with the first ends in the fluidic channel to facilitate sensing of targeted matter in the fluidic channel via an impedance between the first and second nanoneedles that is responsive to the presence of the targeted matter; and wherein providing the base with the fluidic channel includes etching the fluidic channel into the base including a portion located below a portion of the first nanoneedle extending over the fluidic channel.