fromNature
1 week agoSynthetic tongue rates chillies' heat - and spares human tasters
The synthetic tongue is made of a gel that contains milk powder, acrylic acid and choline chloride. When a current is applied to the gel, its chloride and hydrogen ions can conduct electricity because they are mobile. To monitor changes in conductivity, the scientists placed the gel between copper sheets and connected the whole contraption to a workstation that measures the electric current.
Science

