Fast vapor detection by a micropillar array-integrated colorimetric sensor
| Autor: | Timothy J. Palinski, Bin Guan, Bronwyn H. Bradshaw-Hajek, Michael A. Lienhard, Craig Priest, Felix A. Miranda |
|---|---|
| Přispěvatelé: | IEEE SENSORS 2022 Dallas, US 30 October - 2 November 2022, Palinski, Timothy J, Guan, Bin, Bradshaw Hajek, Bronwyn H, Lienhard, Michael A, Priest, Craig, Miranda, Felix A |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Popis: | An optofluidic sensor for rapid detection of gas-phase analytes from a flowing micro-volume fluid sample is reported. The sensor is comprised of a metal-insulator-metal (MIM) thin-film structure integrated with a quartz micropillar array for improved delivery of vapor analytes onto the sensing surface. For our proof-of-principle demonstration, poly(methyl methacrylate) was used as the spacer within the MIM structure to detect ethanol vapors from a fluid sample. It is demonstrated that the micropillar array-integrated sensor shows a much quicker response (less than a minute) and is promising for quantitative colorimetric analysis of volatile analytes in low-volume samples. Refereed/Peer-reviewed |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|