Nanostructured P3HT as a Promising Sensing Element for Real-Time, Dynamic Detection of Gaseous Acetone
AbstractThe dynamic response of gas sensors based on poly(3-hexylthiophene) (P3HT) nanofibers
(NFs) to gaseous acetone was assessed using a setup based on flow-injection analysis, aimed at
emulating actual breath exhalation. The setup was validated by using a commercially available sensor.
The P3HT NFs sensors tested in dynamic flow conditions showed satisfactory reproducibility down to
about 3.5 ppm acetone concentration, a linear response over a clinically relevant concentration range
(3.5-35 ppm), excellent baseline recovery and reversibility upon repeated exposures to the analyte,
short pulse rise and fall times (less than 1 s and about 2 s, respectively) and low power consumption
(few nW), with no relevant response to water. Comparable responses' decay times under either
nitrogen or dry air suggest that the mechanisms at work is mainly attributable to specific analytesemiconducting
polymer interactions. These results open the way to the use of P3HT NFs-based
sensing elements for the realization of portable, real-time electronic noses for on-the-fly exhaled
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Bertoni, C.; Naclerio, P.; Viviani, E.; Dal Zilio, S.; Carrato, S.; Fraleoni-Morgera, A. Nanostructured P3HT as a Promising Sensing Element for Real-Time, Dynamic Detection of Gaseous Acetone. Sensors 2019, 19, 1296.
Bertoni C, Naclerio P, Viviani E, Dal Zilio S, Carrato S, Fraleoni-Morgera A. Nanostructured P3HT as a Promising Sensing Element for Real-Time, Dynamic Detection of Gaseous Acetone. Sensors. 2019; 19(6):1296.Chicago/Turabian Style
Bertoni, Cristina; Naclerio, Pasquale; Viviani, Emanuele; Dal Zilio, Simone; Carrato, Sergio; Fraleoni-Morgera, Alessandro. 2019. "Nanostructured P3HT as a Promising Sensing Element for Real-Time, Dynamic Detection of Gaseous Acetone." Sensors 19, no. 6: 1296.
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