Research output per year
Research output per year
Taghi Moazzenzade, Tieme Walstra, Xiaojun Yang, Jurriaan Huskens*, Serge G. Lemay
Research output: Contribution to journal › Article › Academic › peer-review
In current-blockade impact electrochemistry, insulating particles are detected amperometrically as they impinge upon a micro- or nanoelectrode via a decrease in the faradaic current caused by a redox mediator. A limit of the method is that analytes of a given size yield a broad distribution of response amplitudes due to the inhomogeneities of the mediator flux at the electrode surface. Here, we overcome this limitation by introducing microfabricated ring-shaped electrodes with a width that is significantly smaller than the size of the target particles. We show that the relative step size is somewhat larger and exhibits a narrower distribution than at a conventional ultramicroelectrode of equal diameter.
Original language | English |
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Pages (from-to) | 10168-10174 |
Number of pages | 7 |
Journal | Analytical chemistry |
Volume | 94 |
Issue number | 28 |
DOIs | |
Publication status | Published - 19 Jul 2022 |
Research output: Thesis › PhD Thesis - Research UT, graduation UT