Keywords
implantable pH sensor, antimony electrode, silver/silver-chloride, micro pH sensor, reference electrode
Presentation Type
Talk
Research Abstract
Many body systems operate within a strict pH range, and any deviation can cause harm. pH measurement systems are used in many biomedical research fields. Measurement systems have been able to continuously record pH for a short period of time wirelessly, or over a long period of time with wires, but no system is currently capable of long term, wireless, continuous pH recording. This paper proposes a new pH measurement system that is capable of such measurement. The system is composed of inexpensive, micro-scale, and easy to manufacture pH sensitive and reference electrodes and a data acquisition and transmission module that is wirelessly powered. The system is small enough to be chronically implanted in a rat. In vitro testing of the system showed a linear, stable pH response. The system provides a new tool to researchers who wish to study pH in vivo, chronically, and in micro scale applications.
Session Track
Biomedical Engineering
Recommended Citation
Ryan B. Budde and Pedro P. Irazoqui,
"A Chronically Implanted, Continuous pH Monitoring System for Rats"
(August 3, 2017).
The Summer Undergraduate Research Fellowship (SURF) Symposium.
Paper 1.
https://docs.lib.purdue.edu/surf/2017/presentations/1
Included in
A Chronically Implanted, Continuous pH Monitoring System for Rats
Many body systems operate within a strict pH range, and any deviation can cause harm. pH measurement systems are used in many biomedical research fields. Measurement systems have been able to continuously record pH for a short period of time wirelessly, or over a long period of time with wires, but no system is currently capable of long term, wireless, continuous pH recording. This paper proposes a new pH measurement system that is capable of such measurement. The system is composed of inexpensive, micro-scale, and easy to manufacture pH sensitive and reference electrodes and a data acquisition and transmission module that is wirelessly powered. The system is small enough to be chronically implanted in a rat. In vitro testing of the system showed a linear, stable pH response. The system provides a new tool to researchers who wish to study pH in vivo, chronically, and in micro scale applications.