US Patent 7592679 - Nanowire sensor including resistance switching material

http://www.freepatentsonline.com/7592679.html

This patent from HP teaches incorporating a material having chemically sensitive resistance in a nanowire junction sensor. Claim 1 reads:

1. A sensor, comprising:

at least two electrodes;

at least one nanowire having at least two segments extending substantially laterally between the at least two electrodes, whereby a junction or connection is formed between the at least two segments; and

a sensing material having at least two states positioned adjacent to the junction or connection, and adjacent to at least a portion of each of the at least two segments.