Real‐time Conversion of Electrochemical Currents into Fluorescence Signals Using 8‐Hydroxypyrene‐1,3,6‐trisulfonic Acid (HPTS) and Amplex Red as Fluorogenic Reporters
| Autor: | Hamida Hallil, Corinne Dejous, Christophe Demaille, Rabia Djoumer, Arnaud Chovin |
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| Přispěvatelé: | Laboratoire d'Electrochimie Moléculaire (LEM (UMR_7591)), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Laboratoire de l'intégration, du matériau au système (IMS), Université Sciences et Technologies - Bordeaux 1-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2021 |
| Předmět: |
Capacitive sensing
low-current measurements 02 engineering and technology 010402 general chemistry Photochemistry Electrochemistry 01 natural sciences Catalysis [CHIM]Chemical Sciences [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det] [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics Capacitive coupling Chemistry 021001 nanoscience & nanotechnology Fluorescence 0104 chemical sciences Anode Coupling (electronics) fluorogenic reporters Electrode capacitive coupling fluorescence [CHIM.OTHE]Chemical Sciences/Other 0210 nano-technology Performance enhancement |
| Zdroj: | ChemElectroChem ChemElectroChem, Weinheim : Wiley-VCH, 2021, 8 (12), pp.2298-2307. ⟨10.1002/celc.202100517⟩ |
| ISSN: | 2196-0216 |
| Popis: | International audience; This paper elaborates on an instrumental scheme for translating electrochemical reactions occurring at an electrode under potentiostatic control into fluorescent signals. We examine the performance enhancement of this device using recently introduced water-soluble fluorescent reporter systems, either the pH-sensitive 8-hydroxypyrene-1,3,6-trisulfonic acid (HPTS) system or the electrofluorogenic Amplex Red species. The conversion of stationary and transient, cathodic and anodic electrochemical currents into fluorescence is demonstrated. We show that pure capacitive currents can also be converted to fluorescence by our setup, highlighting the rarely observed coupling between a faradaic reaction at one electrode and capacitive charging at another. |
| Databáze: | OpenAIRE |
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