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Influence of Contact Force on Electrochemical Responses of Redox Species Flowing in Nitrocellulose Membrane at Micropyramid Array Electrode

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Abstract

In this study, we developed a micropyramid array electrode that facilitates contact between a nitrocellulose membrane and electrode, which is important to realize a quantitative and sensitive electrochemical detection system for immunochromatography. We evaluated the micropyamid array electrode with our newly developed detection system that can measure contact forces between a membrane and electrode, and also investigated the relationship between redox current and contact forces. By using normal pulse voltammetry, we observed higher reduction currents over a flat surface electrode at lower contact forces with the micropyramid array.

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Acknowledgments

This work was partly supported by Japan’s Council for Science, Technology and Innovation (CSTI), Cross-ministerial Strategic Innovation Promotion Program (SIP), “Technologies for Creating Next-generation Agriculture, Forestry and Fisheries” (funding agency: Bio-oriented Technology Research Advancement Institution, NARO). Part of this work was also supported by the Japan Society for the Promotion of Science KAKENHI Grant #26870901.

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Authors and Affiliations

  1. Advanced Manufacturing Research Institute, National Institute of Advanced Industrial Science and Technology, 807-1 Shuku-machi, Tosu, Saga, 841-0052, Japan

    Wataru Iwasaki, Ramachandra Rao Sathuluri, Osamu Niwa & Masaya Miyazaki

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  1. Wataru Iwasaki
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  2. Ramachandra Rao Sathuluri
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  3. Osamu Niwa
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  4. Masaya Miyazaki
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Correspondence to Wataru Iwasaki.

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Iwasaki, W., Sathuluri, R.R., Niwa, O. et al. Influence of Contact Force on Electrochemical Responses of Redox Species Flowing in Nitrocellulose Membrane at Micropyramid Array Electrode. ANAL. SCI. 31, 729–732 (2015). https://doi.org/10.2116/analsci.31.729

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  • DOI: https://doi.org/10.2116/analsci.31.729

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