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. Author manuscript; available in PMC: 2016 May 5.
Published in final edited form as: Anal Chem. 2014 Sep 3;86(18):9350–9355. doi: 10.1021/ac503100a

Figure 3.

Figure 3

Fluorescence microscopy images for measuring bacteria viability, in which live bacterial cells appear green and dead bacterial cells appear yellow/red. Images for bacteria in the supernatant (a) and sediment (b) at the low-surface-tension peak of Figure 1c demonstrate a viability ratio of 35% ± 5% and 99% ± 1%, respectively. Images for bacteria in the supernatant (c) and sediment (d) at the high-surface-tension peak of Figure 1c demonstrate a viability ratio of 99% ± 1% and 97% ± 1%, respectively.