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Bio-composite Materials for the Detection of Estrogen in Water Using Piezoresistive Microcantilever Sensors

Published online by Cambridge University Press:  01 February 2011

Timothy L. Porter ,
Tim Vail ,
Catherine Propper  and
Nazmul Islam
Timothy L. Porter
Affiliation:
tim.porter@nau.edu, Northern Arizona University, Physics, Bldg. 19, Room 209, Flagstaff, Arizona, 86011, United States
Tim Vail
Affiliation:
tim.vail@nau.edu, Northern Arizona University, Chemistry and Biochemistry, Flagstaff, Arizona, United States
Catherine Propper
Affiliation:
cathy.propper@nau.edu, Northern Arizona University, Chemistry and Biochemistry, Flagstaff, Arizona, United States
Nazmul Islam
Affiliation:
nazmul.islam@utb.edu, University of Texas Brownsville, Electrical Engineering, Brownsville, Texas, United States
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Abstract

Embedded piezoresistive microcantilever (EPM) sensors were used to detect the presence of the compound estrogen in water samples. The sensor was fabricated with a host material hydrogel (Hypol) functionalized with estrogen antibody. This sensor was able to detect 1 ppm of estrogen in water, responding almost immediately to the estrogen addition, with a full sensor response (saturation) occurring after two minutes of exposure.

Keywords

sensormicroelectro-mechanical (MEMS)piezoresponse
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1253: Symposium K – Functional Materials and Nanostructures for Chemical and Bochemical Sensing , 2010 , 1253-K10-10
Copyright
Copyright © Materials Research Society 2010

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