2.9. Preparation of glucose sensor-integrated in-vitro model
The 3D-printed CP electrodes were assembled by placing the enzyme-casted side of the electrodes inside the chip platform. The 3D-printed CP electrodes were designed such that they could be easily locked in with the chip platform. All three electrodes (WE, CE, and RE) were assembled on the outer chambers of the LOC platform, thereby avoiding any disturbances to the central chamber of the chip that houses the liver sinusoidal in-vitro model. To perform CV and CA measurements, the tail ends of the electrodes were connected to the potentiostat (WizECM-1200 premium, Wizmac, Korea).