Say ‘ahhh’: This ecofriendly tongue depressor checks vitals (IMAGE)

American Chemical Society

Say ‘ahhh’: This ecofriendly tongue depressor checks vitals

Caption

Electrochemical cells etched by a laser on a wooden tongue depressor can measure glucose and nitrite levels in saliva. (WE = working electrode, CE = common counter electrode, RE = common reference electrode)

Credit

Adapted from Analytical Chemistry, 2023, DOI: 10.1021/acs.analchem.3c01211

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