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Researchers from the University of Pittsburgh’s Swanson School of Engineering, Harvard University, and McMaster University have revealed a hydrogel that can respond to optical stimuli and modify the stimuli in response.
A convergence of optical, chemical, and materials sciences has revealed a way to use light to control the local dynamic behavior within a material. The illuminated material mimics the ability of the iris and pupil to dynamically respond to incoming light. Once the light enters the sample, the material itself modifies the behavior of the light, trapping it within regions of the sample.
“Until only a decade or so ago, the preferred state for materials was static. If you built something, the preference…READ MORE