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


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.

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Porter, T.L., Vail, T., Propper, C.R. et al. Bio-composite Materials for the Detection of Estrogen in Water Using Piezoresistive Microcantilever Sensors. MRS Online Proceedings Library 1253, 1010 (2010).

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