Nanomaterials is a field that studies materials with at least one dimension of 100 nanometers or less, including structures within materials. The document discusses developing nano chemo sensors and nano chemical sensors using cantilever beams and carbon nanotubes to create an electronic nose that can detect explosives like improvised explosive devices with high sensitivity, selectivity, reliability and reproducibility while being portable, safe, robust and potentially lower cost. The goal is to protect the public.