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Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
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Sensors and Materials
is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.
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English 日本語
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MYU K.K.
Sensors and Materials
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is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.
Instructions to authors
English 日本語
Instructions for manuscript preparation
English 日本語
Template
English
Publisher
MYU K.K.
Sensors and Materials
1-23-3-303 Sendagi,
Bunkyo-ku, Tokyo 113-0022, Japan
Tel: 81-3-3827-8549
Fax: 81-3-3827-8547
MYU Research, a scientific publisher, seeks a native English-speaking proofreader with a scientific background. B.Sc. or higher degree is desirable. In-office position; work hours negotiable. Call 03-3827-8549 for further information.
MYU Research
(proofreading and recording)
MYU K.K.
(translation service)
The Art of Writing Scientific Papers
(How to write scientific papers)
(Japanese Only)
Sensors and Materials, Volume 20, Number 8 (2009)
Copyright(C) MYU K.K.
Copyright(C) MYU K.K.
|
pp. 417-424
S&M739 Research Paper of Special Issue https://doi.org/10.18494/SAM.2009.571 Published: March 19, 2009 A Small pH Sensor Catheter of the Endoscope for Acidity Test of Gullet and Stomach [PDF] Ji-Hyoung Roh, Kyu-Sik Shin, Nam-Kyu Cho, Don-Haeng Lee, Byung-Moo Moon and Dae-Sung Lee (Received August 1, 2008; Accepted November 19, 2008) Keywords: gastroesophageal reflux disease (GERD), pH, ISFET, endoscope
The detection of pH in the gullet and stomach is highly significant for the diagnosis of gastroesophageal reflux disease (GERD), particularly with the use of a pH sensor in vivo. Most conventional pH sensors are used singly and could not be inserted in the endoscope’s working channel. Because the ion sensitivity field-effect transistor (ISFET) chip has become very small, we have made the pH sensor smaller than a conventional glass pH sensor, and have used it. In this paper, we introduce a small in vivo pH sensor catheter of 2.7 mm diameter and 8 mm length, which can be put in the endoscopy’s working channel of 3 mm diameter. The catheter was evaluated in buffer solution (pH 2–12) and its sensitivity was 43 mV/pH. It was confirmed that the catheter properly functioned during an animal experiment.
Corresponding author: Dae-Sung Lee Cite this article Ji-Hyoung Roh, Kyu-Sik Shin, Nam-Kyu Cho, Don-Haeng Lee, Byung-Moo Moon and Dae-Sung Lee, A Small pH Sensor Catheter of the Endoscope for Acidity Test of Gullet and Stomach, Sens. Mater., Vol. 20, No. 8, 2009, p. 417-424. |
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