Figure 1 | Experimental setup. Test tubes containing the blood sample sit in a temperature-controlled water bath heated to 37°C. A peristaltic pump circulates the blood at constant velocity (0.5mL/min) via a 120cm long and 1.02mm wide medical tube with both ends placed inside the blood sample to complete the circuit. Part of the tube passes inside a temperature-controlled illuminated chamber with mirrored walls to reflect the light. The NIR and UV lamps are located inside the chamber.