A laser arouses fluorescence from engineered light-emitting E. coli bacteria suspended within a microfluidic chip device. The bacteria flicker as they move, and their fluorescent signal propagates throughout the device.   HEBREW UNIVERSITYSee O. Lotan et al., “Nanoscale plasmonic V-groove waveguides for the interrogation of single fluorescent bacterial cells,” Nano Lettersdoi:10.1021/acs.nanolett. 7b02132, 2017. 

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