Hydration level monitoring using embedded piezoresistive microcantilever sensors

R. L. Gunter, William G Delinger, T. L. Porter, R. Stewart, J. Reed

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

A new MEMS based sensor technology, embedded piezoresistive microcantilever (EPM) sensors, may be useful in the real-time monitoring of hydration levels in athletes or other individuals whose activities may result in dehydration. In these devices, organic polymers or functionalized polymeric materials respond to osmolality changes in a person's saliva by expanding or contracting volumetrically. These volumetric changes are measured by tiny piezoresistive microcantilevers embedded in the polymeric material. In this report, we have tested a prototype device utilizing UV crosslinked poly(vinyl acetate) as the active sensing material. This device was able to reliably respond to 1% changes in sodium chloride concentration in solution or alternately to 1% changes in relative humidity.

Original languageEnglish (US)
Pages (from-to)215-220
Number of pages6
JournalMedical Engineering and Physics
Volume27
Issue number3
DOIs
StatePublished - Apr 2005

Fingerprint

Hydration
Ultraviolet devices
Equipment and Supplies
Organic polymers
Monitoring
Sensors
Polymers
Sodium chloride
Dehydration
Micro-Electrical-Mechanical Systems
MEMS
Atmospheric humidity
Thermodynamic properties
Humidity
Saliva
Sodium Chloride
Athletes
Osmolar Concentration
Technology
vinyl acetate

Keywords

  • Hydration
  • MEMS sensor
  • Piezoresistive microcantilever
  • Polymers

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Psychology(all)

Cite this

Hydration level monitoring using embedded piezoresistive microcantilever sensors. / Gunter, R. L.; Delinger, William G; Porter, T. L.; Stewart, R.; Reed, J.

In: Medical Engineering and Physics, Vol. 27, No. 3, 04.2005, p. 215-220.

Research output: Contribution to journalArticle

Gunter, R. L. ; Delinger, William G ; Porter, T. L. ; Stewart, R. ; Reed, J. / Hydration level monitoring using embedded piezoresistive microcantilever sensors. In: Medical Engineering and Physics. 2005 ; Vol. 27, No. 3. pp. 215-220.
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