Figure 4.
3D-printed multi-modal device featuring amperometric detection for norepinephrine and downstream chemiluminescent detection for ATP. (A) CAD rendering of the device. (B) Photograph of assembled device with sample inlet, three detection electrodes, an inlet for the luciferin-luciferase reagent, and output to waste. The ATP mixing channel denoted in (A) is placed over a PMT. (C) Flow injection analysis of injections of 500 μM norepinephrine and 200 μM ATP, 500 μM norepinephrine alone, and 200 μM ATP alone.