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. Author manuscript; available in PMC: 2011 Jan 21.
Published in final edited form as: Lab Chip. 2009 Oct 9;10(2):161–164. doi: 10.1039/b917503b

Fig 2.

Fig 2

A. Retractable constriction in action: Two very different sized droplets can be seen stretching through the constriction without breakup. B. Sample single molecule trace data for control sample (TOTO®-3 dye only). The discrete phase consisted of 100 nM TOTO®-3 dye along with 100 nM Alexa 488 dye (Indicator dye). The red trace shows fluorescence signal from the indicator dye, while the black trace shows the fluorescence signal from TOTO®-3 dye. C. Similar single molecule trace data with the discrete phase consisting of TOTO®-3 labeled, 37 pM Lambda DNA and 100 nM Alexa 488 dye.