Abstract
This paper presents the fabrication of dual electrode ensembles for electrochemical sensing of dopamine. A new dual electrode ensemble consists of vertically aligned core nanowire electrodes and a shell electrode with a hemicylindrical nanocavity structure and submicron inter-electrode spacing between the two working electrodes. By using a 3-dimensional cavity structure of two working electrodes, collection efficiency in redox cycling of dopamine is enhanced. Initial measurement results show the ability to detect 200 μM concentration of dopamine with 69% collection efficiency on a dual electrode ensemble.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1147-1150 |
| Number of pages | 4 |
| Journal | Electroanalysis |
| Volume | 20 |
| Issue number | 10 |
| DOIs | |
| State | Published - May 1 2008 |
All Science Journal Classification (ASJC) codes
- Analytical Chemistry
- Electrochemistry
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Yoon, H., Hankins, P. T., Varadan, V. K., & Harbaugh, R. E. (2008). Dual electrode ensembles with core and shell nanoelectrodes for dopamine sensing applications. Electroanalysis, 20(10), 1147-1150. https://doi.org/10.1002/elan.200704148