Abstract: A sensor array comprising multiple discrete sensors for providing detection and prognosis of various diseases. The array is made up of multiple discrete sensors, each of which has a first and a second noble metal electrode on a silicon substrate, said electrodes separated by a gap. An electrically conductive pathway across the gap between the first and second noble electrodes is provided by a nano-network of functionalized polymer nanowires or carbon nanotubes (SWNTs) the arrangement providing a sensor. The multiple discrete sensors comprise a reference cell and multiple detection sensors functionalized using a panel of capture molecules to detect the same or different diseases or biological functions.