Bernath K, Hai M, Mastrobattista E, Griffiths AD, Magdassi S, Tawfik DS.

Anal Biochem. 2004 Feb 1;325(1):151-7

In vitro compartmentalization by double emulsions: sorting and gene enrichment by fluorescence activated cell sorting.

Oil droplets containing water droplets (w/o/w) can be FACS sorted.