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Hydrogel Based Composite Materials for Chemical, Biological and Medical Sensing Applications

Published online by Cambridge University Press:  01 February 2011

Timothy L. Porter ,
Tim Vail ,
Jim Reed  and
Ray Stewart
Timothy L. Porter
Affiliation:
tim.porter@nau.edu, Northern Arizona University, Physics, Bldg. 19, Room 209, Flagstaff, AZ, 86011, United States
Tim Vail
Affiliation:
tim.vail@nau.edu, Northern Arizona University, Flagstaff, AZ, 86011, United States
Jim Reed
Affiliation:
jreed@baymaterials.com, Cantimer, Inc., Menlo Park, CA, 94025, United States
Ray Stewart
Affiliation:
rays@baymaterials.com, Cantimer, Inc., Menlo Park, CA, 94025, United States
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Abstract

Embedded piezoresistive microcantilever (EPM) sensors provide a tiny, low-cost, and robust platform for the detection of chemical or biological analytes. New sensing applications become potentially available as the design or synthesis of new sensing materials for EPM instruments are studies. In this study, we report on the detection of hydrogen fluoride gas (HF) in air, and in a medical application, the measurement of human hydration levels. Two sensing materials characterize these applications, thiolated gold nanoparticles in a keratin matrix (HF), and a crosslinked PVA-based hydrogel in the hydration application.

Keywords

sensorbiomedicalmicroelectro-mechanical (MEMS)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1010: Symposium V – Functional Materials for Chemical and Biochemical Sensors , 2007 , 1010-V08-07
Copyright
Copyright © Materials Research Society 2007

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References

1. Porter, T.L. et al. , An Embedded Polymer Piezoresistive Microcantilever Sensor. Ultramicroscopy, 2003. 97: p. 365–369.Google Scholar
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