https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3375735/ Our good friend Charles Lieber was working on nanotechnology and batteries. "nanowire device arrays as powerful tools for investigating the neural circuitry associated with olfaction. Figure 6a illustrates a brain slice oriented over a two-dimensional array of nanowire devices such that the devices are in contact with the cortical region of the slice. This region is involved in the processing of signals from the olfactory bulb, and an understanding of this processing is critical to our understanding of smell" Understanding of smell you say? And why do people with No-Vid lose their sense of smell? "These studies showed unambiguously that it is possible to detect single viral particles with excellent signal-to-noise and high selectivity. Second, and more recently, we have investigated limits of nanowire FET detection sensitivity in both linear and subthreshold regimes of an FET.51 Both of these studies suggest substantial promise for future development of nanowire sensors as single-molecule detectors, which could have a large impact in many areas, including DNA sequencing"