You would totally expect the Scots to have developed this nanoscale taster to test their national drink. The metallic 'tongue' is too small to see with the naked eye, but very stable and sensitive to changes in environment due to its chemical properties. The structure acts as 'tastebuds' that absorb light in different ways when different types of whisky are poured over them, with greater than 99% accuracy. Researchers are looking now to commercialise their technology
https://www.beveragedaily.com/Article/2019/08/05/Scientists-have-got-it-licked-as-artificial-tongue-detects-counterfeit-whisky
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