Pathogen detectors built into plastic patches could someday spare you food poisoning.
Carlos Filipe, a chemical engineer at McMaster University in Hamilton, Canada, and colleagues have developed a new kind of flexible film that’s coated in molecules that glow when they touch E. coli cells. This type of sensor also glows in the presence of molecules secreted by E. coli, so the material doesn’t have to be in direct contact with bacterial cells to flag food contamination.
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