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Keywords:

  • arrays;
  • bionanotechnology;
  • bacteria;
  • electrochemistry;
  • sensors
Thumbnail image of graphical abstract

Peptide nanotubes are integrated with microfabricated transducer arrays for bacterial detection. On each microelectrode of the array, circulating antibody-modified peptide nanotubes agglutinate bacteria as pathogen catchers and generate an impedance signal on the transducer. The pathogen microarray can detect as few as 102 cells of E. coli or S. typhi within one hour and the sensor chip can be easily reused for multiple measurements.