Artificial Snot Enhances Electronic Noses

June 21, 2007
Researchers at the University of Warwick and Leicester University are coating sensors used by electronic noses with a mix of polymers, mimicking the action of the mucus in the natural nose.

Julie Kalista
Online Editor

A natural nose uses over 100 million receptors that, acting together, identify and distinguish molecules they encounter. Electronic noses, used in several commercial settings, including quality control in the food industry, use the same technique but often have less than 50 sensors.

The team has created an artificial mucus layer that make electronic noses more adept at detecting and distinguishing odors. They placed a 10-micron-thick layer of a polymer normally used to separate gases on the sensors within their electronic nose. Tests showed that their artificial snot substantially improved the performance of their electronic nose, letting it differentiate between the smell of milk and bananas, a task that was previously a challenge smells for the device.

According to one researcher, "Our artificial mucus not only improves odor discernment, it also shortens analysis times."

The final device including the sensors and the artificial mucus is contained in a relatively thin piece of plastic just a few centimeters square and costing less than five UK pounds (10 US Dollars) to produce.

More Information:
University of Warwick
Leicester University

Sponsored Recommendations

Sept. 16, 2025
From robotic arms to high-speed conveyors, accuracy matters. Discover how encoders transform motor control by turning motion into real-time datadelivering tighter speed control...
Sept. 16, 2025
Keep high-torque gearboxes running efficiently with external lubrication and cooling systems delivered fast. Flexible configurations, sensor-ready monitoring, and stocked options...
Sept. 16, 2025
Now assembled in the U.S., compact P2.e planetary gear units combine maximum torque, thermal efficiency, and flexible configurations for heavy-duty applicationsavailable faster...
Aug. 22, 2025
Discover how to meet growing customer demands for custom products without overextending your engineering team. Learn how scaling your automation strategy can help you win more...

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!