Zhang, HuijuanBarsotti, Robert J.Wong, Chee-LeongXue, XuejiaLiu, XiaogangStellacci, FrancescoThong, John T. L.2011-06-062011-06-062011-06-06200910.1002/smll.200900938https://infoscience.epfl.ch/handle/20.500.14299/68440Polymer-protected sub-2-nm nanogaps that are fabricated via a novel electrical stressing approach exhibit substantial ionic-current reduction in near-physiological conditions. These devices enable direct DNA detection in aqueous solution by utilizing assembly of oligonucleotide-modified gold nanoparticles to the nanogap.biological sensingDNA detectionionic current nanogapsPolymer-Protected Sub-2-nm-Nanogap Fabrication for Biological Sensing in Near-Physiological Conditionstext::journal::journal article::research article