Sentences with phrase «by odor molecules»

Not exact matches

Neuroscientists can test odor - sensing neurons» responses to chemical «smells» by exposing them to scent molecules in liquid gradients, which overlap like the blurry rainbow of food coloring shown here.

Unlike activated carbon, which sequesters odor molecules by physically trapping them, the copper chemically reacts with the stench, breaking it down into its nonsmelly component parts.

Two typical odors — earthy and musty — are caused by to different molecules: geosmin (GSM) and 2 - methylisoborneol (MIB).

Humans detect smells by inhaling air that contains odor molecules, which then bind to receptors inside the nose, relaying messages to the brain.

The scientists began by building a database of 1,500 odor - producing molecules, cataloging 1,664 different traits — their size, the strength of the chemical bonds between their atoms, and so on.

There is also an odor object version of «banana,» a combination of the inherent pleasantness of the molecules released by the fruit (as measured by Sobel's yardstick) and our subjective mental state when we encounter them.

The farther apart the molecules were on the yardstick, the easier it was for people to tell them apart by their odor.

By giving different odor molecules a place on the yardstick, we can distinguish fine gradations among them.

Professor Bargmann then embarked upon what was to become a lifetime mission to define how genes and the environment influence behavior by dissecting the neural circuitry of C. elegans and the genes, receptors, and signaling molecules involved in such behavior as feeding and responses to odors.

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This odor counteractant is essential oil - based and functions by chemically modifying the structure of the malodor molecule.

All urine odors are caused by molecules that emit a vapor.