Figure 3
From: A nanoporous interferometric micro-sensor for biomedical detection of volatile sulphur compounds
The setup of real-time oral malodour measurements. The use of RIFs sensing device showing the volunteer and the parts of sampling and sensing devices. The gas sampling was performed using three parts: a flexible straw connected to a neoprene tubing for suction (part 1), a tightly sealed microfluidic structure containing the AAO substrate (part 2), and a syringe pump for suction of a known volume of air (part 3).