Nanotextured Superhydrophobic Electrodes enable Detection of ~60 attomolar DNA Concentration by non-Faradaic Impedance Spectroscopy

a School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN 47907, USA b Birck Nanotechnology Center, Purdue University, West Lafayette, IN 47907, USA c School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA d Department of Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA e Micro and Nanotechnology Lab, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA f Department of Electrical and Computer Engineering, University of Illinois at UrbanaChampaign, Urbana, IL 61801, USA