Room Temperature Gas Multisensor System Based on a Novel Polymer Nanocomposite Material

The applicability of multisensor system based on a novel polymer nanocomposite material with parylene matrix including metal and/or semiconductive nanoparticles for the detection of low concentrations of ammonia gas, nitrogen dioxide, and hydrogen chloride is demonstrated. Nanocomposite films were synthesized by vacuum co-condensation method. It was shown that nanocomposite sensors demonstrate stable, fast, and reversible response at room temperature to target gases in ppm- and sub-ppm concentration ranges. Testing multisensor system using imitators of the odors of explosives (TNT) and drugs (heroin) showed the possibility of qualitative analysis of these odors as well.