A face to remember: A photoimprinted image in a reactive microemulsion persisted for more than an hour. Such localized patterns in reaction–diffusion systems could find application in memory-storage devices. The picture shows the image of a face immediately following illumination (a) and after 1 h (b). The area at the right shows the evolution of a spontaneous Turing pattern.
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Kaminaga et al. (2006) studied this question.
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