Figure 5
Real-time current response of the MoS2/RGO FET sensors toward H2O2 after PMA was added into PBS buffer solution in the presence of HeLa cells (red line) and in the absence of HeLa cells (blue line).The purple line shows the case that H2O2 scavenger catalase was mixed with the PBS solution and added onto the devices containing HeLa cells. Inset: Optical microscope image shows the HeLa cells grown well on the MoS2/RGO FET sensor array.
