News‘Whiskey webs’ are the new ‘coffee ring effect’

25th March 2020by admin0
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Spilled coffee forms a ring as the liquid evaporates,
depositing solids along the edge of the puddle. This “coffee ring
effect” has fascinated scientists for decades, but now a team says
they have uncovered the mechanism behind an even more striking,
web-like pattern that forms when drops of American whiskey dry up.
The results, reported in ACS Nano, suggest that these distinctive
‘whiskey webs’ could someday be used to identify counterfeit
spirits.

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      The New Fusion technology is based on a phenomenon called triplet-triplet annihilation (TTA) which is a process in which two triplet excitons annihilate and produce a higher energy singlet exciton.

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