A group of researchers at the Univerity of Illinois have developed an inexpensive way to visualize scent through the use of specially developed inks.

A group of researchers at the University of Illinois have developed an inexpensive way to visualize scent through the use of specially developed inks.  The dyes, which are placed on a polymer film, react to various chemicals and change colors accordingly. The resulting images paint a scent profile of what they are measuring. There are myriad applications, but one of the more novel is the ability to detect when you've burnt your coffee.

[via Sciencepunk]

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