Surface Requirements for Optimal Biosensing with Disposable Gold Electrodes
Electrochemical biosensors are promising technologies for detection and monitoring in low-resource settings due to their potential for easy use and low-cost instrumentation. Disposable gold screen-printed electrodes (SPEs) are popular substrates for these biosensors, but necessary dopants in the ink...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Chemical Society (ACS)
2022
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| Online Access: | https://hdl.handle.net/1721.1/146573 |
| _version_ | 1811089913302482944 |
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| author | Zamani, Marjon Yang, Victoria Maziashvili, Lizi Fan, Gang Klapperich, Catherine M Furst, Ariel L |
| author2 | Massachusetts Institute of Technology. Department of Chemical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Chemical Engineering Zamani, Marjon Yang, Victoria Maziashvili, Lizi Fan, Gang Klapperich, Catherine M Furst, Ariel L |
| author_sort | Zamani, Marjon |
| collection | MIT |
| description | Electrochemical biosensors are promising technologies for detection and monitoring in low-resource settings due to their potential for easy use and low-cost instrumentation. Disposable gold screen-printed electrodes (SPEs) are popular substrates for these biosensors, but necessary dopants in the ink used for their production can interfere with biosensor function and contribute to the heterogeneity of these electrodes. We recently reported an alternative disposable gold electrode made from gold leaf generated using low-cost, equipment-free fabrication. We have directly compared the surface topology, biorecognition element deposition, and functional performance of three disposable gold electrodes: our gold leaf electrodes and two commercial SPEs. Our leaf electrodes significantly outperformed the SPEs for reproducible and effective biosensing in a DNase I assay and are nearly an order of magnitude less expensive than the SPEs. Therefore, these electrodes are promising for further development as point-of-care diagnostics, especially in low-resource settings. |
| first_indexed | 2024-09-23T14:27:22Z |
| format | Article |
| id | mit-1721.1/146573 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T14:27:22Z |
| publishDate | 2022 |
| publisher | American Chemical Society (ACS) |
| record_format | dspace |
| spelling | mit-1721.1/1465732023-01-27T19:53:53Z Surface Requirements for Optimal Biosensing with Disposable Gold Electrodes Zamani, Marjon Yang, Victoria Maziashvili, Lizi Fan, Gang Klapperich, Catherine M Furst, Ariel L Massachusetts Institute of Technology. Department of Chemical Engineering Electrochemical biosensors are promising technologies for detection and monitoring in low-resource settings due to their potential for easy use and low-cost instrumentation. Disposable gold screen-printed electrodes (SPEs) are popular substrates for these biosensors, but necessary dopants in the ink used for their production can interfere with biosensor function and contribute to the heterogeneity of these electrodes. We recently reported an alternative disposable gold electrode made from gold leaf generated using low-cost, equipment-free fabrication. We have directly compared the surface topology, biorecognition element deposition, and functional performance of three disposable gold electrodes: our gold leaf electrodes and two commercial SPEs. Our leaf electrodes significantly outperformed the SPEs for reproducible and effective biosensing in a DNase I assay and are nearly an order of magnitude less expensive than the SPEs. Therefore, these electrodes are promising for further development as point-of-care diagnostics, especially in low-resource settings. 2022-11-21T19:45:35Z 2022-11-21T19:45:35Z 2022 2022-11-21T18:53:54Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/146573 Zamani, Marjon, Yang, Victoria, Maziashvili, Lizi, Fan, Gang, Klapperich, Catherine M et al. 2022. "Surface Requirements for Optimal Biosensing with Disposable Gold Electrodes." ACS Measurement Science Au, 2 (2). en 10.1021/ACSMEASURESCIAU.1C00042 ACS Measurement Science Au Creative Commons Attribution-NonCommercial-NoDerivs License http://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf American Chemical Society (ACS) ACS |
| spellingShingle | Zamani, Marjon Yang, Victoria Maziashvili, Lizi Fan, Gang Klapperich, Catherine M Furst, Ariel L Surface Requirements for Optimal Biosensing with Disposable Gold Electrodes |
| title | Surface Requirements for Optimal Biosensing with Disposable Gold Electrodes |
| title_full | Surface Requirements for Optimal Biosensing with Disposable Gold Electrodes |
| title_fullStr | Surface Requirements for Optimal Biosensing with Disposable Gold Electrodes |
| title_full_unstemmed | Surface Requirements for Optimal Biosensing with Disposable Gold Electrodes |
| title_short | Surface Requirements for Optimal Biosensing with Disposable Gold Electrodes |
| title_sort | surface requirements for optimal biosensing with disposable gold electrodes |
| url | https://hdl.handle.net/1721.1/146573 |
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