Journal
ANALYTICAL CHEMISTRY
Volume 79, Issue 6, Pages 2556-2561Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ac061995s
Keywords
-
Categories
Funding
- EPSRC [EP/D504813/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/D504813/1] Funding Source: researchfish
Ask authors/readers for more resources
Boron-doped diamond (BDD) ultramicroelectrode (UME) tips were fabricated by the growth of BDD films by chemical vapor deposition onto sharpened tungsten wires. Both nanocrystalline and microcrystalline forms of diamond coatings were examined. The diamond-coated wires were selectively insulated with nail varnish, electrophoretic paint, or fast-setting epoxy to form UME tips of critical dimensions of 1-25 mu m. The geometry of the exposed electrode area was disk or hemispherical in most cases. Cyclic voltammetry and chronoamperometry were used to assess exposed electrode area and integrity of the insulation. BDD UMEs were used to obtain SECM approach curves to an insulating and a conducting substrate, which were fitted to the theory appropriate for the observed tip geometry. The tips were used to obtain SECM images of immobilized respiring E. coli, illustrating the suitability of BDD UMEs for electrochemical imaging in biological media.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available