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The vibration theory of smell proposes that a molecule's smell character is due to its vibrational frequency in the infrared range. This controversial theory is an alternative to the more widely accepted docking theory of olfaction (formerly termed the shape theory of olfaction), which proposes that a molecule's smell character is due to a range of weak non-covalent interactions between its ...
Aromachology is a relatively new science that explores positive feelings induced by odors far from any holistic or healing process. The term covers both natural and synthetic scents. The term aromachology is sometimes mistaken by companies with several other terms such as "essential oils" or "aromatherapy" as marketing phrases.
The odor detection threshold is the lowest concentration of a certain odor compound that is perceivable by the human sense of smell. The threshold of a chemical compound is determined in part by its shape, polarity, partial charges, and molecular mass. The olfactory mechanisms responsible for a compound's different detection threshold is not ...
Gas chromatography-olfactometry (GC-O) is a technique that integrates the separation of volatile compounds using a gas chromatograph with the detection of odour using an olfactometer (human assessor). [1]
In all industries, odor assessment is usually performed by human sensory analysis, by chemosensors, or by gas chromatography.The latter technique gives information about volatile organic compounds but the correlation between analytical results and mean odor perception is not direct due to potential interactions between several odorous components.
The DeGennaro Lab seeks to determine the odors and olfactory receptors that contribute to host detection in mosquitoes, analyze nectar-seeking behavior and examine vector ecology. [3] DeGennaro also intends to establish a model for coral symbiosis and chemosensation using the upside-down jellyfish, Cassiopea xamachana , in order to study new ...
Chemical Senses is a peer-reviewed scientific journal covering all aspects of chemoreception, including taste, smell, vomeronasal, and trigeminal chemoreception in humans and other animals. It is published by Oxford University Press and the editor-in-chief is Steven D. Munger (University of Florida).
The challenge regarding smell of molecules with similar structures is contrary to the results obtained with silicon analogues of bourgeonal and lilial, which despite their differences in molecular vibrations have similar smells and similarly activate the most responsive human receptor, hOR17-4, [21] with studies showing that the human musk ...