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Sensors 2007, 7(9), 1980-1991; doi:10.3390/s7091980

Models of Hydrogel Swelling with Applications to Hydration Sensing

1,* , 2, 2 and 2
1 Northern Arizona University, Dept. of Physics, Flagstaff, AZ 86011, USA 2 Cantimer, Inc., Menlo Park, CA 94025, USA
* Author to whom correspondence should be addressed.
Received: 7 September 2007 / Accepted: 21 September 2007 / Published: 25 September 2007
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Hydrogels, polymers and various other composite materials may be used insensing applications in which the swelling or de-swelling of the material in response tosome analyte is converted via a transducer to a measurable signal. In this paper, we analyzemodels used to predict the swelling behavior of hydrogels that may be used in applicationsrelated to hydration monitoring in humans. Preliminary experimental data related toosmolality changes in fluids is presented to compare to the theoretical models. Overall,good experimental agreement with the models is achieved.
Keywords: Hydrogel; Swelling; Osmolality Hydrogel; Swelling; Osmolality
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Porter, T.L.; Stewart, R.; Reed, J.; Morton, K. Models of Hydrogel Swelling with Applications to Hydration Sensing. Sensors 2007, 7, 1980-1991.

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