Abstract
A method of making a breath sensing tube includes: (A) dispersing a nanowire material in a solution in a dielectriphoretic bath, such that the nanowire material is formed into individual nanowires and nanowire aggregates; (B) adsorbing the nanowire aggregates on a bath electrode through dielectrophoresis so as to obtain a nanowire-containing solution containing the individual nanowires; contacting sensor electrodes of a substrate with the nanowire-containing solution; and subjecting the nanowire-containing solution to dielectrophoresis, so that one of the individual nanowires is adsorbed to the sensor electrodes to interconnect the sensor electrodes.