UV-LEDs for monitoring dialysis adequacy

Abstract—New Ultraviolet (C band: 280 nm − 100 nm) lightemitting diodes (UV-C LEDs) have been characterized to evaluatetheir potential applicability in the development of a simple low–cost optical adequacy sensor for continuous online measurementson spent dialysate. This approach would allow us to avoid theuse of bulky and expensive spectrometers in the monitor systems.The reported results could be useful for the system developmenteven if different critical aspects such as LED reliability, meanlifetime, and emitted and transmitted power monitoring should betaken into consideration. Nevertheless, the experimental activityhas shown that the system can be implemented with few opticalcomponents and that the assembly can be made simple.