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On the left, there is the general scheme of immunosensor against Streptococcus pyogenes construction layer-by layer over a DropSens gold SPE (CX2223AT). On the top right, a fluorescence imaging of bound S. pyogenes on the sensor surface. On the bottom right, there is a % change in impedance plot upon the addition of different bacteria concentration, from 104 to 108 cells/mL.
Reproduced from [41], with permission of ACS
