Characterization of new structural ion sensor for sodium ion

Tatsuya Komori; Takafumi Yamamoto; Kazuyo Oda; Kenji Sakai; Toshihiko Kiwa; Keiji Tsukada

doi:10.1541/ieejsmas.133.309

Characterization of new structural ion sensor for sodium ion

Tatsuya Komori, Takafumi Yamamoto, Kazuyo Oda, Kenji Sakai, Toshihiko Kiwa, Keiji Tsukada

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

1 Citation (Scopus)

Abstract

We developed a new structural ion sensor for measuring sodium ions without using a reference electrode. The ion sensor, which is all solid state, has a structure of double electrodes, which are integrated on the base plate, inside the sodium ion sensitive membrane. The ion sensitivity of the sensor was 41.4 mV/decade in the range of 10-1 to 10-4M. To investigate the response mechanism of the potential between two electrodes, the impedance characteristic was measured using the electrochemical impedance method. The impedance of the ion sensitive membrane changed by changing the sodium ion concentration in solution. These results suggest a correlation between the membrane potential and the membrane impedance. In conclusion, the potential difference between the electrodes is caused by the difference in ion concentration of the electrodes.

Original language	English
Pages (from-to)	309-313
Number of pages	5
Journal	IEEJ Transactions on Sensors and Micromachines
Volume	133
Issue number	7
DOIs	https://doi.org/10.1541/ieejsmas.133.309
Publication status	Published - Jul 17 2013

Keywords

Electrochemical impedance method
Ion sensitive membrane
Ion sensor
Sodium ion

ASJC Scopus subject areas

Mechanical Engineering
Electrical and Electronic Engineering

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title = "Characterization of new structural ion sensor for sodium ion",

abstract = "We developed a new structural ion sensor for measuring sodium ions without using a reference electrode. The ion sensor, which is all solid state, has a structure of double electrodes, which are integrated on the base plate, inside the sodium ion sensitive membrane. The ion sensitivity of the sensor was 41.4 mV/decade in the range of 10-1 to 10-4M. To investigate the response mechanism of the potential between two electrodes, the impedance characteristic was measured using the electrochemical impedance method. The impedance of the ion sensitive membrane changed by changing the sodium ion concentration in solution. These results suggest a correlation between the membrane potential and the membrane impedance. In conclusion, the potential difference between the electrodes is caused by the difference in ion concentration of the electrodes.",

keywords = "Electrochemical impedance method, Ion sensitive membrane, Ion sensor, Sodium ion",

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T1 - Characterization of new structural ion sensor for sodium ion

AU - Komori, Tatsuya

AU - Yamamoto, Takafumi

AU - Oda, Kazuyo

AU - Sakai, Kenji

AU - Kiwa, Toshihiko

AU - Tsukada, Keiji

PY - 2013/7/17

Y1 - 2013/7/17

N2 - We developed a new structural ion sensor for measuring sodium ions without using a reference electrode. The ion sensor, which is all solid state, has a structure of double electrodes, which are integrated on the base plate, inside the sodium ion sensitive membrane. The ion sensitivity of the sensor was 41.4 mV/decade in the range of 10-1 to 10-4M. To investigate the response mechanism of the potential between two electrodes, the impedance characteristic was measured using the electrochemical impedance method. The impedance of the ion sensitive membrane changed by changing the sodium ion concentration in solution. These results suggest a correlation between the membrane potential and the membrane impedance. In conclusion, the potential difference between the electrodes is caused by the difference in ion concentration of the electrodes.

AB - We developed a new structural ion sensor for measuring sodium ions without using a reference electrode. The ion sensor, which is all solid state, has a structure of double electrodes, which are integrated on the base plate, inside the sodium ion sensitive membrane. The ion sensitivity of the sensor was 41.4 mV/decade in the range of 10-1 to 10-4M. To investigate the response mechanism of the potential between two electrodes, the impedance characteristic was measured using the electrochemical impedance method. The impedance of the ion sensitive membrane changed by changing the sodium ion concentration in solution. These results suggest a correlation between the membrane potential and the membrane impedance. In conclusion, the potential difference between the electrodes is caused by the difference in ion concentration of the electrodes.

KW - Electrochemical impedance method

KW - Ion sensitive membrane

KW - Ion sensor

KW - Sodium ion

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