Fig. 3: Investigation of gas sensing characteristics of olfactory receptors-like sensor array to various volatile organic compounds.
From: Data-centric artificial olfactory system based on the eigengraph

a–c Change of initial baseline resistance according to the individual deposition thickness of bimetallic nanolayers. d Sensitivity values of 1nm-deposited sensor array to the 6 gas species (10 ppm of acetone, toluene, xylene, ethanol, ammonia and hydrogen sulfide) at the 300 °C. e PCA result based on the sensitivity values of all channels of the optimized sensor array.