1. A sensor platform, comprising a sensor element comprising a patterned nonwoven nanotube fabric and having an electrical characterization; a support structure for supporting the sensor element so that it may be exposed to a fluid; and control circuitry to electrically sense the electrical characterization of the sensor element so that the presence of a corresponding analyte may be detected, wherein the patterned nonwoven nanotube fabric has at least two sides that are substantially parallel to each other and the patterned nonwoven nanotube fabric comprises a plurality of unaligned nanotubes.