As a droplet of liquid evaporates, any particles suspended in the liquid will naturally migrate to the edge of the droplet, leaving behind a “coffee-ring” pattern when the liquid fully dries. UC ...

ACS Fall 2025 will be held in Washington, DC, in addition to the ACS Fall 2025 Digital Meeting, on August 17-21. For more information, visit the ACS Fall 2025 website or the tabs above. Journalists: ...