"DIGITAL-BIO: Living enzyme acts as bit" genre: Science
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	Johns Hopkins University researcher Marc Ostermeier described a single-molecule switch engineered from a strand of a living protein—an enzyme. Such molecular switchs could be applied as super-sensitive sensors that detect even a single molecule of a biological warfare agent. Medically, molecular switches have even wider-scale potential, from early detection of hard-to-diagnosis maladies, to "lethal drug" delivery only to cancerous cells.

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