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Edge detection is a signal processing algorithm common in artificial intelligence and image recognition programs. We have constructed a genetically encoded edge detection algorithm that programs an isogenic community of E. coli to sense an image of light, communicate to identify the light-dark edges, and visually present the result of the computation. The algorithm is implemented using multiple genetic...
We have developed and implemented an in vitro compartmentalization (IVC) selection scheme for the identification of streptavidin (SA) variants with altered specificities for the biotin analog desthiobiotin. Wild-type SA and selected variants bind desthiobiotin with similar affinities (∼10 −13 M), but the variants have off rates almost 50 times slower and a half-life for dissociation of 24...
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