| Abstract Scope |
Resistive type terpene sensors were fabricated for detection of the terpene gases, and for studies on the transport mechanism of olfactory information. Lift-off technique was applied for interdigitated Au electrodes on the alumina substrate. Self-assembly monolayer was spin-coated first for the improvement between substrate and polymer, and MIP solution with conductive polymer and cross-linker was casted and polymerized. After extracting process of target terpene molecules, nanostructured MIP layer was obtained for the terpene detection. The five terpene sensors which extracted each molecule responded to each gas and the resistance changes were linear to gas concentrations. If sensitivity is defined as S= ΔI/Io, the sensitivity of the α-pinene sensor was 0.47 ppm-1, which was the highest value among the target gases. The parameters of proposed model for the transport mechanism of olfactory information were type of gas, concentrations, diffusion coefficient and selectivity. The simulated result was compared with empirical one. |