Fabrication and characterization of a nanometer-sized optical fiber electrode based on selective chemical etching for scanning electrochemical/optical microscopy

Analytical Chemistry
Kenichi MaruyamaKoji Suzuki

Abstract

We have already reported a method for fabricating ultramicroelectrodes (Suzuki, K. JP Patent, 2004-45394, 2004). This method is based on the selective chemical etching of optical fibers. In this work, we undertake a detailed investigation involving a combination of etched optical fibers with various types of tapered tip (protruding-shape, double- (or pencil-) shape and triple-tapered electrode) and insulation with electrophoretic paint. Our goal is to establish a method for fabricating nanometer-sized optical fiber electrodes with high reproducibility. As a result, we realized pencil-shaped and triple-tapered electrodes that had radii in the nanometer range with high reproducibility. These nanometer-sized electrodes showed well-defined sigmoidal curves and stable diffusion-limited responses with cyclic voltammetry. The pencil-shaped optical fiber, which has a conical tip with a cone angle of 20 degrees , was effective for controlling the electrode radius. The pencil-shaped electrodes had higher reproducibility and smaller electrode radii (r(app) < 1.0 nm) than those of other etched optical fiber electrodes. By using a pencil-shaped electrode with a 105-nm radius as a probe, we obtained simultaneous electrochemical and optical i...Continue Reading

References

Sep 4, 1987·Science·R Levi-Montalcini
Feb 5, 2000·Analytical Chemistry·J V Macpherson, P R Unwin
Mar 18, 2000·Journal of Neuroscience Methods·A Kuras, N Gutmaniene

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Citations

Jul 21, 2006·Analytical and Bioanalytical Chemistry·Shigeru AmemiyaDarrick A Gross
Nov 17, 2009·Analytical and Bioanalytical Chemistry·F DeissP R Stoddart
Dec 7, 2013·Molecules and Cells·Morgan Hamon, Jong Wook Hong
Apr 23, 2013·Analytica Chimica Acta·Stefan BergnerFrank-Michael Matysik
Dec 9, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Yinni YuD Keith Roper
Jul 1, 2008·Annual Review of Analytical Chemistry·Kelly L AdamsAndrew G Ewing
Jul 20, 2010·Annual Review of Analytical Chemistry·Albert SchulteWolfgang Schuhmann
Apr 29, 2014·Bioprocess and Biosystems Engineering·Zhili GongXiangyou Wang
Jan 12, 2008·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Aki HondaKoji Suzuki
May 13, 2008·Analytical Sciences : the International Journal of the Japan Society for Analytical Chemistry·Yasuhiro KobayashiKoji Suzuki
Feb 8, 2007·Angewandte Chemie·Gunther WittstockChuan Zhao
Sep 21, 2014·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Cangran GuoJing Liu
Mar 16, 2016·Biomedical Optics Express·Nianbing ZhongYishan Li
Jan 3, 2019·The Review of Scientific Instruments·Shibajyoti Ghosh DastiderMahmoud Almasri
Nov 30, 2006·Langmuir : the ACS Journal of Surfaces and Colloids·Yasufumi TakahashiTomokazu Matsue
Aug 26, 2010·Analytical Chemistry·Michaela NebelWolfgang Schuhmann
Aug 21, 2007·Analytical Chemistry·Daniel S Schrock, John E Baur
Apr 7, 2007·Analytical Chemistry·Jun Ho ShimRichard B Brown

❮ Previous
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