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Picky drinkers, rejoice. This sensor can detect the type of alcohol in your drink

This type of sensitive, fast, and inexpensive method for detecting volatile aldehydes and ketones is of use in detecting of chemical toxins and safety and food inspections.

more lifestyle Updated: Jul 23, 2017 16:18 IST
Press Trust of India, Washington
Alcohol,Drinking,Vodka
A colour-changing sensor can accurately distinguish between alcohols. (Shutterstock )

Scientists have developed a new disposable, colour-changing sensor that can accurately distinguish between alcohols, a device that may come handy for people who are very particular about their drink.

Vodka tastes different from brandy, and connoisseurs can distinguish among different brands of whiskeys. The flavours of spirits result from a complex bouquet of volatile compounds. Researchers from the University of Illinois at Urbana- Champaign in the US have developed an inexpensive, colourimetric, disposable test strips based on strong interactions between the sensors and analyte molecules.

Unlike existing electronic noses, a variety of chemically reactive dyes are arranged into a sensor array and are simply printed like “chemical ink.” Different analyte molecules bind to the individual reagent areas with different degrees of strength, causing the reagents to change colour.

This type of sensitive, fast, and inexpensive method for detecting volatile aldehydes and ketones is of use in many fields: from the detection of chemical toxins like formaldehyde, to safety and food inspections, and preventative screening.

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First Published: Jul 23, 2017 16:16 IST