Transducers with physical dimensions comparable to the target species have been widely investigated as a means of creating sensitive biosensors (Gupta et al. 2004; Pumera et al. 2007; Singh et al. 2010; Wei et al. 2009). Thus, electrodes ranging from micrometers to nanometers have been investigated for pathogen detection. While nanoscale planar electrodes are among the most commonly examined for pathogen detection (Hong et al. 2015; Peh and Li, 2013), the fabrication of nanoscale structures of conducting and semiconducting materials using a wide range of bottom-up and top-down nanomanufacturing processes, such as nanowires, has led to the investigation of nanostructured electrodes for pathogen detection (Patolsky and Lieber, 2005). Nanostructuring can be performed simultaneously with bottom-up electrode fabrication processes or as a post-processing step with top-down electrode fabrication processes.