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. 2011 Jan 14;6(1):e16157. doi: 10.1371/journal.pone.0016157

Figure 4. Quantitative pH evolution in the saline around the implant.

Figure 4

The evolution of pH in a larger saline environment around the implant measured each minute by a pH microelectrode confirmed the opposing pH drifts at the two implants serving as electrodes.