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. Author manuscript; available in PMC: 2017 May 3.
Published in final edited form as: RSC Adv. 2016 May 3;6:46134–46142. doi: 10.1039/C6RA06468J

Figure 4.

Figure 4

Application of ps-pH-neutral in the high throughput detection of bacterial culture with microplates. Bacterial culture containing pH sensors were incubated in microplates at 37 °C. The fluorescence intensities at 475 nm and 505 nm of pH sensors were dynamically detected by a microplate reader under 455 nm excitation, A: L. fermentum, C: E. coli, E: B. subtilis. The ratio values (I475nm/I505nm) were calculated and were plotted vs. incubation time, B: L. fermentum, D: E. coli, F: B. subtilis.