ArticleAnalytical chemistry2022
Ring Ultramicroelectrodes for Current-Blockade Particle-Impact Electrochemistry.
Article in Analytical chemistry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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Who cites it
7 citing papers in PubMed.
- Digital Detection of DNA via Impedimetric Tracking of Probe Nanoparticles.Nano letters · 2025Article
- High-Throughput Single-Entity Electrochemistry with Microelectrode Arrays.Analytical chemistry · 2024Article
- Recent Developments in Single-Entity Electrochemistry.Analytical chemistry · 2024Review
- The role of applied potential on particle sizing precision in single-entity blocking electrochemistry.Electrochimica acta · 2023Article
- Utilizing the Oxygen Reduction Reaction in Particle Impact Electrochemistry: A Step toward Mediator-Free Digital Electrochemical Sensors.ACS omega · 2023Article
- Precise Electrochemical Sizing of Individual Electro-Inactive Particles.Journal of visualized experiments : JoVE · 2023Article
- Electrochemical Redox Cycling Behavior of Gold Nanoring Electrodes Microfabricated on a Silicon Micropillar.Micromachines · 2023Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
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.
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Registered trials
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