Electrochemical Lossy Mode Resonance-based Fiber Optic Sensing for Electroactive Species

Takuya Okazaki; Masaki Yoshioka; Tatsuya Orii; Akira Taguchi; Hideki Kuramitz; Tomoaki Watanabe

doi:10.1002/elan.202200089

Electrochemical Lossy Mode Resonance-based Fiber Optic Sensing for Electroactive Species

Takuya Okazaki^*, Masaki Yoshioka, Tatsuya Orii, Akira Taguchi, Hideki Kuramitz, Tomoaki Watanabe

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

We present an electrochemical-lossy mode resonance (LMR) sensing method that detects refractive indices and electroactive species. The LMR peaks of indium-tin-oxide in the transmittance-wavelength spectra were significantly shifted as the applied potential between 1.0 and −0.5 V at 209 nm/V. The modulation was exploited for sensing the refractive index and electroactive species (ferrocyanide and methylene blue) in two ways: peak-wavelength tracking and potential scanning. The potential-scanning technique produced clear potential LMR peaks in the transmittance-potential spectra for the first time, which were corresponded to the external refractive index. Meanwhile, the limits of detection of ferrocyanide and methylene blue were 7.5 and 25.3 μM, respectively, in peak-wavelength tracking and 18.2 and 20.8 μM, respectively, in the potential scanning technique.

Original language	English
Article number	e202200089
Journal	Electroanalysis
Volume	35
Issue number	3
DOIs	https://doi.org/10.1002/elan.202200089
State	Published - 2023/03

Keywords

electrochemical redox
lossy mode resonance
potential scanning
refractive index

ASJC Scopus subject areas

Analytical Chemistry
Electrochemistry

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10.1002/elan.202200089

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@article{26e604f3f11f4a7d98494079114a1543,

title = "Electrochemical Lossy Mode Resonance-based Fiber Optic Sensing for Electroactive Species",

abstract = "We present an electrochemical-lossy mode resonance (LMR) sensing method that detects refractive indices and electroactive species. The LMR peaks of indium-tin-oxide in the transmittance-wavelength spectra were significantly shifted as the applied potential between 1.0 and −0.5 V at 209 nm/V. The modulation was exploited for sensing the refractive index and electroactive species (ferrocyanide and methylene blue) in two ways: peak-wavelength tracking and potential scanning. The potential-scanning technique produced clear potential LMR peaks in the transmittance-potential spectra for the first time, which were corresponded to the external refractive index. Meanwhile, the limits of detection of ferrocyanide and methylene blue were 7.5 and 25.3 μM, respectively, in peak-wavelength tracking and 18.2 and 20.8 μM, respectively, in the potential scanning technique.",

keywords = "electrochemical redox, lossy mode resonance, potential scanning, refractive index",

author = "Takuya Okazaki and Masaki Yoshioka and Tatsuya Orii and Akira Taguchi and Hideki Kuramitz and Tomoaki Watanabe",

note = "Publisher Copyright: {\textcopyright} 2022 Wiley-VCH GmbH.",

year = "2023",

month = mar,

doi = "10.1002/elan.202200089",

language = "英語",

volume = "35",

journal = "Electroanalysis",

issn = "1040-0397",

publisher = "Wiley-VCH Verlag",

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TY - JOUR

T1 - Electrochemical Lossy Mode Resonance-based Fiber Optic Sensing for Electroactive Species

AU - Okazaki, Takuya

AU - Yoshioka, Masaki

AU - Orii, Tatsuya

AU - Taguchi, Akira

AU - Kuramitz, Hideki

AU - Watanabe, Tomoaki

PY - 2023/3

Y1 - 2023/3

N2 - We present an electrochemical-lossy mode resonance (LMR) sensing method that detects refractive indices and electroactive species. The LMR peaks of indium-tin-oxide in the transmittance-wavelength spectra were significantly shifted as the applied potential between 1.0 and −0.5 V at 209 nm/V. The modulation was exploited for sensing the refractive index and electroactive species (ferrocyanide and methylene blue) in two ways: peak-wavelength tracking and potential scanning. The potential-scanning technique produced clear potential LMR peaks in the transmittance-potential spectra for the first time, which were corresponded to the external refractive index. Meanwhile, the limits of detection of ferrocyanide and methylene blue were 7.5 and 25.3 μM, respectively, in peak-wavelength tracking and 18.2 and 20.8 μM, respectively, in the potential scanning technique.

AB - We present an electrochemical-lossy mode resonance (LMR) sensing method that detects refractive indices and electroactive species. The LMR peaks of indium-tin-oxide in the transmittance-wavelength spectra were significantly shifted as the applied potential between 1.0 and −0.5 V at 209 nm/V. The modulation was exploited for sensing the refractive index and electroactive species (ferrocyanide and methylene blue) in two ways: peak-wavelength tracking and potential scanning. The potential-scanning technique produced clear potential LMR peaks in the transmittance-potential spectra for the first time, which were corresponded to the external refractive index. Meanwhile, the limits of detection of ferrocyanide and methylene blue were 7.5 and 25.3 μM, respectively, in peak-wavelength tracking and 18.2 and 20.8 μM, respectively, in the potential scanning technique.

KW - electrochemical redox

KW - lossy mode resonance

KW - potential scanning

KW - refractive index

UR - http://www.scopus.com/inward/record.url?scp=85137655401&partnerID=8YFLogxK

U2 - 10.1002/elan.202200089

DO - 10.1002/elan.202200089

M3 - 学術論文

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SN - 1040-0397

VL - 35

JO - Electroanalysis

JF - Electroanalysis

IS - 3

M1 - e202200089

ER -

Electrochemical Lossy Mode Resonance-based Fiber Optic Sensing for Electroactive Species

Abstract

Keywords

ASJC Scopus subject areas

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