Patent ID: 11951472
Assignee: WISCONSIN ALUMNI RESEARCH FOUNDATION
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 9:
10. A method of making a droplet of a first liquid exhibiting perfect liquid repellency in a second volume of a second liquid covering a first solid surface, comprising:
a) introducing a first volume of a first liquid into a second volume of a second liquid above a first location on a first solid surface,
the first liquid and the second liquid having a known first liquid-second liquid interfacial tension,
the first liquid and the first location on the first solid surface having a known first liquid-first location interfacial tension,
the second liquid and the first location on the first solid surface having a known second liquid-first location interfacial tension,
wherein the first liquid-first location interfacial tension is greater than or equal to the sum of the first liquid-second liquid interfacial tension and the second liquid-first location interfacial tension, thereby giving rise to perfect liquid repellency between the first liquid and the first location on the first solid surface; and
further comprising performing a chemical reaction in the first volume of the first liquid.