Student Work

Miniaturized Blood pH Sensor

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The aim of this project was to design a miniaturized, minimally-invasive blood pH sensing device for medical point-of-care applications. Blood pH is a vital marker for determining overall health. Abnormal blood pH levels mean that the body's natural buffer system is out of balance, which may indicate serious health issues, such as, kidney damage, pneumonia, or heart failure. This project utilizes an Ion Sensitive Field Effect Transistor (ISFET) to measure the pH of a liquid solution. The sensor's measurement is passed through a readout circuit that presents the pH measurement on the device's display screen in real-time. With its portable size and its ability to accurately measure with only 1-2mL of solution, this device is a more convenient option when compared to the current state-of-the-art blood pH measurement techniques.

  • This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.
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Identifier
  • 62676
  • E-project-041922-151946
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Year
  • 2022
UN Sustainable Development Goals
Date created
  • 2022-04-19
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