PLoS One. 2011 Mar 11;6(3):e17455.

Drop-on-demand single cell isolation and total RNA analysis.

Moon S, Kim YG, Dong L, Lombardi M, Haeggstrom E, Jensen RV, Hsiao LL, Demirci U.

Droplets are printed on a slide, and then screened with a microscope for content of cells of interest.