Bench-top fabrication and electrochemical applications of a micro-gap electrode using a microbead spacer

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Large-area micro-gap electrodes were fabricated employing uniform-sized spherical beads as spacers to precisely control the gap thickness ranging from 500 nm to 8 mu m for large amperometric signal by the combination of electrochemical amplification by redox cycling and the large area of the electrodes. As a biosensor application, dopamine oxidation with an Au-Au (4 mu m) gap showed selective and sensitive amplification of dopamine in the presence of ascorbic acid. (C) 2016 Elsevier B.V. All rights reserved
Publisher
ELSEVIER SCIENCE INC
Issue Date
2016-07
Language
English
Article Type
Article
Keywords

COLLECTOR MICROTRENCH SENSOR; DOPAMINE DETECTION; ASCORBIC-ACID; ION-TRANSPORT; DEVICE; SYSTEMS; CELLS

Citation

ELECTROCHEMISTRY COMMUNICATIONS, v.68, pp.76 - 80

ISSN
1388-2481
DOI
10.1016/j.elecom.2016.05.001
URI
http://hdl.handle.net/10203/212471
Appears in Collection
CH-Journal Papers(저널논문)
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