Electrochemical Detection in Nanoliter Droplets
| العنوان: | Electrochemical Detection in Nanoliter Droplets |
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| المؤلفون: | Eline Thomas, Karolien Jans, Olivier Y.F. Henry, Liesbet Lagae, Willem Van Roy |
| المصدر: | Journal of The Electrochemical Society. 170:017501 |
| بيانات النشر: | The Electrochemical Society, 2023. |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | Renewable Energy, Sustainability and the Environment, Materials Chemistry, Electrochemistry, Condensed Matter Physics, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials |
| الوصف: | The growing interest for in situ sensing in nanoliter droplets warrants a deeper study of the sensing capabilities and wetting principal of very small electrochemical sensing electrodes in contact with microfluidic droplets. For this study, a device consisting of a droplet generator followed by a 100 μm wide channel with a three-electrode set-up with a 10 μm wide working electrode is used. For measurements 5 mM ferri-/ferrocyanide was used as standard redox couple. It was experimentally found that a thin layer of the droplet phase was left behind on the electrodes, suggesting that the droplets do not need to wet the electrodes but rather merge with the water layer present on the electrodes. With this device, it was possible to detect the redox couple inside the microfluidic droplets and the currents reached a well-defined plateau almost immediately. However, the currents measured inside the droplets deviated from the expected trends for currents measured in flow. Also, a linear concentration curve could be obtained indicating that electrochemical quantitative sensing remains possible. |
| تدمد: | 1945-7111 0013-4651 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::0b8c39d93db612c661366f0fc7430398 https://doi.org/10.1149/1945-7111/acb01c |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........0b8c39d93db612c661366f0fc7430398 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19457111 00134651 |
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