We actuate with light & magnets, we fold & unfold DNA, we cell-free express proteins, we play with drops, marbles & interfaces, we organize particles, we harness coffee rings.

Harnessing coffee rings: from ubiquitous particle patterning to low-cost diagnostics

The so-called “coffee-ring effect” denotes the accumulation of nonvolatile compounds at the edge of an evaporating sessile drop. This ubiquitous phenomenon can be seen as both a scientific challenge and an obstacle in industry. We are devising new ways to harness the coffee-ring effect and exploiting it to convert it into a powerful tool for applications ranging from ubiquitous particle patterning to low-cost point-of-care diagnostics.
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