MOOSY4 eNose IoT

Pollution, at times, can be easy to spot: rivers that smell and look like a garbage bin, skies which make you cough and wheeze like you just smoked a full pack of cigarettes. In 2020, five creative researchers from Spain and Sweden collaborated to create the Multisensory Odor Olfactory System (MOOSY4) and eNose that can detect volatile organic compounds (VOCs) in water. Stick the nose into water and the four sensitive metal oxide semiconductor (MOS) gas sensors transmit data on the presence and concentration of VOCs via the Internet of Things (IoT) technology to a central interface that stores the collected data for processing, which also takes place within the system architecture. The inspiration for the eNose is in the name; the human nose. They designed the eNose to mimic how noses detect, record, store memory and identify different smells, realizing that a device could go through the same order of operations using IoT technology. eNoses are not unique to this research; different artificial noses of sorts have been developed for industries like forestry, healthcare, and toxic substance detection, but they have been more densely packed with sensors and thus more difficult to integrate within a larger detection framework. The eNose in this research only depends on four such sensors, and thus can transmit information more quickly. And because it is all connected via IoT and data is stored on the cloud, the information is accessible. Researchers tested the eNose with bottled water infused with VOCs giving off various scents, like rotten eggs, wet cloths, butane, and other scents and found it was able to correctly identify the VOC with approximately 86% efficiency. The applications for this could range around pollution monitoring, ecological monitoring, and even bottled water quality testing, though the leap from research to commercialization and further optimization would be necessary. 


Internet of Things, Monitoring, Pollution, Regulation