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Advances in Polymer Gels Pave Way for Sensors, Displays

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Physicists at the University of North Texas in Denton have conducted trials using a type of polymer gel called a hydrogel that may play a role in new display or sensor technologies. The hydrogels swell or shrink when environmental stimuli such as a change in temperature or exposure to an IR light source cause them to absorb or discharge water between cross-linked polymer chains. The polymer hydrogel is shown at room temperature (right). A dinosaur figure appears as heating begins (far right). The researchers placed a layer of the hydrogel on a transparent substrate. Using a photomask,...Read full article

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    Published: August 1998
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