A microelectromechanical systems (MEMS) platform for hydrogel benchmarking was designed, fabricated and tested. This MEMS platform is a testbed for the characterization of stimuli-sensitive hydrogels at the micrometer scale, which makes it a useful tool for developing and benchmarking different hydrogels in a realistic usage environment. The platform allows the application of chemical and thermal stimuli and the monitoring of the hydrogel's swelling or shrinking by visual methods as well as by an embedded conductometric sensing mechanism. Such a platform allows measurements on a small scale and is especially useful to make a realistic assessment of the behavior of a gel after going through a microfabrication process. Several hydrogels were tested utilizing this proposed MEMS platform to prove the concept.
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Ceyssens et al. (2012) studied this question.
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