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From BBC News | Technology | World Edition:
A layer of artificial "snot" has been found to improve the ability of an "electronic nose" to precisely sniff out aromas in foods and perfumes.
Coating the accurate sensors with a mixture of polymers allowed the nose to pick out a diverse range of smells.
The synthetic mucus mimics that found in human noses and controls the rate at which different odours bombard sensors.
Electronic noses have been used for many years in the food and beverage industry for quality control.
The new enhanced nose had found smells such as bananas and milk challenging but it is now able to tell them apart.
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