Volatile organic compounds are chemicals emitted as gases that can have adverse health effects.
Volatile organic compounds are chemicals emitted as gases that can have adverse health effects. They are often found in paints, pharmaceuticals, and refrigerants, among other common products, but they can also act as markers of explosives, insect infestation, food spoilage, and disease.
Tracing VOCs is important for public safety and all “smell” related issues. To this end, in Applied Physics Reviews, from AIP Publishing, Liu et al. introduced a fluid mechanics-based chamber design for an electronic nose (e-nose) that consistently detects VOCs at low concentrations. The strategy, which includes using a shuntlike device to control the behavior of fluid flow, is a step forward in e-nose technology development.
Methods for detecting VOCs face many challenges in terms of selectivity, sensitivity, reproducibility, and stability. E-noses, inspired by the olfactory system, can overcome some of these barriers by combining arrays of chemical sensors with pattern recognition techniques to recognize odors.
Read more at American Institute Of Physics
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