Developing a Solid-State pH Sensor for Wagyu-Rumen Monitoring

Lan Zhang, Jian Lu, Hirofumi Nogami, Hironao Okada, Toshihiro Itoh

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We have developed a solid-type pH sensor for dairy wagyu-rumen measurements. The pH sensor is composed of a sensing electrode of indium tin oxide (ITO) film and a metal-oxide-semiconductor field-effect transistor (MOSFET). In the solid-state sensor structure, the ITO electrode is a separated gate of the FET and the ITO electrode can be patterned with a suitable capture structure for the wagyu-rumen environment. A sensor system with a compact size can be fabricated by eliminating the reference solution. The pH sensors have a sensitivity of 10-15 μA/pH under different sensing contact areas from 12 to 78 mm2. Long-term tests with interval experiments have been completed in 18 d, and the results demonstrate that the pH sensor has a stable performance for rumen pH measurements over a long time.

Original languageEnglish
Pages (from-to)1273-1281
Number of pages9
JournalSensors and Materials
Volume28
Issue number12
DOIs
Publication statusPublished - Jan 1 2016

Fingerprint

Solid-state sensors
pH sensors
Tin oxides
Indium
solid state
Monitoring
sensors
indium oxides
tin oxides
Electrodes
electrodes
Dairies
MOSFET devices
field effect transistors
Field effect transistors
Oxide films
metal oxide semiconductors
oxide films
Sensors
intervals

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Materials Science(all)

Cite this

Developing a Solid-State pH Sensor for Wagyu-Rumen Monitoring. / Zhang, Lan; Lu, Jian; Nogami, Hirofumi; Okada, Hironao; Itoh, Toshihiro.

In: Sensors and Materials, Vol. 28, No. 12, 01.01.2016, p. 1273-1281.

Research output: Contribution to journalArticle

Zhang, Lan ; Lu, Jian ; Nogami, Hirofumi ; Okada, Hironao ; Itoh, Toshihiro. / Developing a Solid-State pH Sensor for Wagyu-Rumen Monitoring. In: Sensors and Materials. 2016 ; Vol. 28, No. 12. pp. 1273-1281.
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