Electronic nose recognizes a variety of scents

Freshly ground coffee, popcorn, biowaste or smoke – in the course of life, we get to know different scents and thanks to our nose, we distinguish and identify them even without seeing their source. Scientists of Karlsruhe ...

How does a machine smell? Better than it did

Every odor has its own specific pattern which our noses are able to identify. Using a combination of proteins coupled to transistors, for the first time machines are able to differentiate smells that are mirror images of ...

Why pneumococci affect primarily humans

A special variant of a sugar molecule in the human nose might explain why pneumococcal infections are more common in humans than in other animals, researchers from Karolinska Institutet in Sweden report in a study published ...

Fermented coffee's fruity aromas demystified

Specialty coffees are gaining traction in coffeehouses around the world—and now a fermented version could bring a fruity taste to your morning cup of joe. This new kind of beverage has a raspberry-like taste and aroma, ...

How cells in the nose detect odors

The human nose has millions of olfactory neurons grouped into hundreds of different neuron types. Each of these neuron types expresses only one odorant receptor, and all neurons expressing the same odorant receptor plug into ...

Camels' noses inspire a new humidity sensor

Camels have a renowned ability to survive on little water. They are also adept at finding something to drink in the vast desert, using noses that are exquisite moisture detectors. In a new study in ACS Nano, researchers describe ...

Human-like nose can sniff out contamination in drinking water

A bioelectronic nose that mimics the human nose can detect traces of bacteria in water by smelling it, without the need for complex equipment and testing. According to a study published in Biosensors and Bioelectronics the ...

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