(a) Live E.coli detection in PBSG, flow = 20 μl/min, laser power = 14.5 dBm, gram negative antibody surface, bacteria growth time of 4.3 hours in LB Broth. (b) Dead E.coli detection in PBSG, flow = 20 μl/min, laser power = 14.5 dBm, gram negative antibody surface.