The device-to-device variability in baseline resistance data (Fig. ) reflects the proposed conduction mechanism through self-aggregated SnO nanoflowers partially bridged by LIG. As noted above, the sensors show consistent response magnitude, shape and time dependence. For some devices with a high degree of carbon bridging (lower initial resistance), the sensor becomes less sensitive at high methanol concentrations (Fig. .3) suggesting that the degree of carbon bridging could provide a viable route for future optimization. The methanol addition response time is presented in Fig. . The time taken to rise to 90% of the maximum response (t90) was t90 ≈ 30 s for 1 L (150 ppm) of methanol and t90 ≈ 57 s for 50 L (4110 ppm) of methanol. It is likely that the simple liquid phase addition-evaporation method employed here to generate headspace VOCs aliases the measured response time with the evaporation rate. For example, for the same chamber base temperature, we observe greater response times for ethanol (t90 ≈ 45 s for 1 L), which has a higher boiling point than methanol. Therefore, we consider the measured response times to be an upper bound. The recovery time, ≈ 5 s, was unaffected by increased VOC concentration levels. We note that the solvent introduction method employed here enables resourceefficient study of a variety of VOC compounds and serves as a versatile pathfinding route to assess new sensor configurations. Figure shows the cross-selectivity behavior to ethanol, IPA and acetone. We observe comparable response (RL/RL0) values for methanol (8.3±1.0%), ethanol (12.5±1.9%), and acetone (8.8±0.7%). The response data for IPA demonstrates incomplete recovery behavior, suggesting a high adsorption affinity at the SnO nanoflowers. This is not unexpected, given that IPA was the reflux solvent for their synthesis. Figure shows the response data vs. time for an ethanol concentration ramp for our LIG-nanoflower devices and Fig. shows the corresponding concentration-response curves. The mean extracted LOD for ethanol is 180±40 ppm (Table ), similar to the mean LOD for methanol, 170±40 ppm.