Evidence map›Paper›PMID 39866634›Full record

ArticleACS omega2025

Real-Time Monitoring of Electrode Surface Changes in Fast-Scan Cyclic Voltammetry Using Fourier Transform Electrochemical Impedance Spectroscopy.

Cheonho Park, Youngjong Kwak, Jaehyun Jang, Sangmun Hwang, Hyun U Cho, Se Jin Jeon, Yoonbae Oh, Hojin Shin, Kendall H Lee, Dong Pyo Jang

Abstract read
In one paragraph

Article in ACS omega, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed.

  1. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Cheonho ParkDepartment of Chemistry, University of Virginia, Charlottesville, Virginia 22901, United States.
Youngjong KwakDepartment of Biomedical Engineering, Hanyang University, Seoul 04763, Republic of Korea.ORCID https://orcid.org/0009-0005-6016-4490
Jaehyun JangDepartment of Electronic Engineering, Hanyang University, Seoul 04763, Republic of Korea.
Sangmun HwangDepartment of Biomedical Engineering, Hanyang University, Seoul 04763, Republic of Korea.
Hyun U ChoDepartment of Biomedical Engineering, Hanyang University, Seoul 04763, Republic of Korea.
Se Jin JeonDepartment of Pharmacology, College of Medicine, Hallym University, Chuncheon 24252, Republic of Korea.
Yoonbae OhDepartment of Biomedical Engineering, Mayo Clinic, Rochester, Minnesota 55902, United States.ORCID https://orcid.org/0000-0003-1779-978X
Hojin ShinDepartment of Biomedical Engineering, Mayo Clinic, Rochester, Minnesota 55902, United States.ORCID https://orcid.org/0000-0001-6095-5122
Kendall H LeeDepartment of Biomedical Engineering, Mayo Clinic, Rochester, Minnesota 55902, United States.
Dong Pyo JangDepartment of Biomedical Engineering, Hanyang University, Seoul 04763, Republic of Korea.ORCID https://orcid.org/0000-0002-2832-2576

Funding

An Integrated Neurochemical/Electrophysiological Recording and Neuromodulation System for Basic and Clinical ResearchR42NS125895 · NINDS · WINCS INTERNATIONAL, LLC · PI Kevin Elliott Bennet, Kendall Lee · 2022 to 2026
$2.3M
Development of an innovative in vivo voltammetric technique for measurements of tonic serotonin concentrations in the mammalian brain.R01NS129549 · NINDS · MAYO CLINIC ROCHESTER · PI Kendall H. Lee, Yoonbae Oh · 2023 to 2026
$2.3M
Development of advanced voltammetric method for basal neurotransmitter level measurementR01NS112176 · NINDS · MAYO CLINIC ROCHESTER · PI LEE, KENDALL H., OH, YOONBAE · 2019 to 2022
$1.4M
NINDS NIH HHS R01 NS112176NINDS NIH HHS R01 NS129549NINDS NIH HHS R42 NS125895
6 · The paper itself

Abstract

Fast-scan cyclic voltammetry (FSCV) is a widely used electrochemical technique to measure the phasic response of neurotransmitters in the brain. It has the advantage of reducing tissue damage to the brain due to the use of carbon fiber microelectrodes as well as having a high temporal resolution (10 Hz) sufficient to monitor neurotransmitter release in vivo. During the FSCV experiment, the surface of the carbon fiber microelectrode is inevitably changed by the fouling effect. In terms of redox peak potential and sensitivity against neurotransmitters, a changed electrode surface results in a voltammogram that differs from the precalibration. However, when an electrode is implanted in the brain, the method for monitoring the electrode status change is limited. In this study, we propose employing an electrochemical impedance concept to monitor the gradual change of the electrode surface during FSCV scanning. Fourier transform electrochemical impedance spectroscopy (FTEIS) was used in combination with FSCV to detect the real-time impedance of the electrode. The relationship between impedance and electrode surface conditions was studied by immersing carbon fiber microelectrodes in bovine serum albumin solution to induce biofouling and diminish electrode sensitivity. As a result of the nonspecific adsorption of bovine serum albumin during the interleave scan of FSCV and FTEIS, both the measured dopamine response and the capacitance of the equivalent circuit model from FTEIS decreased over time. The capacitance and sensitivity of the electrode showed correlation (R

Identifiers

PMID39866634
PMCPMC11755184

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.