ArticleChemistry (Weinheim an der Bergstrasse, Germany)2021
Real-time Voltammetric Anion Sensing Under Flow.
Article in Chemistry (Weinheim an der Bergstrasse, Germany), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- A Schiff-Base Molecular Probe for Selective Fluorescence Sensing of Maleic Acid with Recognition of Maleic Acid in Food Additives and Cell Imaging.Journal of fluorescence · 2025Article
- Anion Sensing through Redox-Modulated Fluorescent Halogen Bonding and Hydrogen Bonding Hosts.Angewandte Chemie (International ed. in English) · 2024Article
- Halogen bonding and chalcogen bonding mediated sensing.Chemical science · 2022Review
- Redox-Switchable Chalcogen Bonding for Anion Recognition and Sensing.Journal of the American Chemical Society · 2022Article
- Real-time Voltammetric Anion Sensing Under Flow.Chemistry (Weinheim an der Bergstrasse, Germany) · 2021Article
Corrections and comments
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Authors and funding
6 authors.
Funding
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Abstract
The development of real-life applicable ion sensors, in particular those capable of repeat use and long-term monitoring, remains a formidable challenge. Herein, we demonstrate, in a proof-of-concept, the real-time voltammetric sensing of anions under continuous flow in a 3D-printed microfluidic system. Electro-active anion receptive halogen bonding (XB) and hydrogen bonding (HB) ferrocene-isophthalamide-(iodo)triazole films were employed as exemplary sensory interfaces. Upon exposure to anions, the cathodic perturbations of the ferrocene redox-transducer are monitored by repeat square-wave voltammetry (SWV) cycling and peak fitting of the voltammograms by a custom-written MATLAB script. This enables the facile and automated data processing of thousands of SW scans and is associated with an over one order-of-magnitude improvement in limits of detection. In addition, this improved analysis enables tuning of the measurement parameters such that high temporal resolution can be achieved. More generally, this new flow methodology is extendable to a variety of other analytes, including cations, and presents an important step towards translation of voltammetric ion sensors from laboratory to real-world applications.
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Registered trials
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