Ion Transfer Voltammetry with an Electrochemical Pen
We present a new electrochemical system that combines paper-based sensing and ion-transfer voltammetry, bringing the latter a step closer toward point-of-care applications. Studies at the interface between two immiscible electrolyte solutions (ITIES) are often performed to detect redox-inactive spec...
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| Format: | Journal Article |
| Language: | English |
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AMER CHEMICAL SOC
2020
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| Subjects: | |
| Online Access: | http://purl.org/au-research/grants/arc/LP160100359 http://hdl.handle.net/20.500.11937/89595 |
| _version_ | 1848765255274987520 |
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| author | Podrażka, M. Witkowska Nery, E. Henares, Terence G. Jönsson-Niedziółka, M. Arrigan, Damien |
| author_facet | Podrażka, M. Witkowska Nery, E. Henares, Terence G. Jönsson-Niedziółka, M. Arrigan, Damien |
| author_sort | Podrażka, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We present a new electrochemical system that combines paper-based sensing and ion-transfer voltammetry, bringing the latter a step closer toward point-of-care applications. Studies at the interface between two immiscible electrolyte solutions (ITIES) are often performed to detect redox-inactive species; unfortunately, due to the inherent instability of the interface, it is rather poorly explored outside specialized laboratories. Here, we address this limitation by combining a pen-like device containing the gelled organic phase with a paper-supported aqueous phase. This combination makes the system more user-friendly, potentially low-cost, and easy to assemble. We show the applicability of the new cell to analyze both simple and ionophore-facilitated transfer of ions and proteins, preconcentration of species, and analysis of mixtures through combination with paper chromatography. The native ion content of the paper also enabled measurements without added electrolytes. Those studies could broaden the scope for the application of the label-free electrochemical detection of nonredox-active species at points-of-need. |
| first_indexed | 2025-11-14T11:32:20Z |
| format | Journal Article |
| id | curtin-20.500.11937-89595 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:32:20Z |
| publishDate | 2020 |
| publisher | AMER CHEMICAL SOC |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-895952023-01-19T06:57:01Z Ion Transfer Voltammetry with an Electrochemical Pen Podrażka, M. Witkowska Nery, E. Henares, Terence G. Jönsson-Niedziółka, M. Arrigan, Damien Science & Technology Physical Sciences Chemistry, Analytical Chemistry PAPER-BASED DEVICES EGG-WHITE-LYSOZYME STRIPPING VOLTAMMETRY MICROINTERFACE ARRAY SELECTIVE ELECTRODES CELLULOSE-PAPER INTERFACE SEPARATION WATER POTASSIUM We present a new electrochemical system that combines paper-based sensing and ion-transfer voltammetry, bringing the latter a step closer toward point-of-care applications. Studies at the interface between two immiscible electrolyte solutions (ITIES) are often performed to detect redox-inactive species; unfortunately, due to the inherent instability of the interface, it is rather poorly explored outside specialized laboratories. Here, we address this limitation by combining a pen-like device containing the gelled organic phase with a paper-supported aqueous phase. This combination makes the system more user-friendly, potentially low-cost, and easy to assemble. We show the applicability of the new cell to analyze both simple and ionophore-facilitated transfer of ions and proteins, preconcentration of species, and analysis of mixtures through combination with paper chromatography. The native ion content of the paper also enabled measurements without added electrolytes. Those studies could broaden the scope for the application of the label-free electrochemical detection of nonredox-active species at points-of-need. 2020 Journal Article http://hdl.handle.net/20.500.11937/89595 10.1021/acs.analchem.0c03530 English http://purl.org/au-research/grants/arc/LP160100359 http://creativecommons.org/licenses/by/4.0/ AMER CHEMICAL SOC fulltext |
| spellingShingle | Science & Technology Physical Sciences Chemistry, Analytical Chemistry PAPER-BASED DEVICES EGG-WHITE-LYSOZYME STRIPPING VOLTAMMETRY MICROINTERFACE ARRAY SELECTIVE ELECTRODES CELLULOSE-PAPER INTERFACE SEPARATION WATER POTASSIUM Podrażka, M. Witkowska Nery, E. Henares, Terence G. Jönsson-Niedziółka, M. Arrigan, Damien Ion Transfer Voltammetry with an Electrochemical Pen |
| title | Ion Transfer Voltammetry with an Electrochemical Pen |
| title_full | Ion Transfer Voltammetry with an Electrochemical Pen |
| title_fullStr | Ion Transfer Voltammetry with an Electrochemical Pen |
| title_full_unstemmed | Ion Transfer Voltammetry with an Electrochemical Pen |
| title_short | Ion Transfer Voltammetry with an Electrochemical Pen |
| title_sort | ion transfer voltammetry with an electrochemical pen |
| topic | Science & Technology Physical Sciences Chemistry, Analytical Chemistry PAPER-BASED DEVICES EGG-WHITE-LYSOZYME STRIPPING VOLTAMMETRY MICROINTERFACE ARRAY SELECTIVE ELECTRODES CELLULOSE-PAPER INTERFACE SEPARATION WATER POTASSIUM |
| url | http://purl.org/au-research/grants/arc/LP160100359 http://hdl.handle.net/20.500.11937/89595 |