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. 2015 May 21;15(5):11787–11804. doi: 10.3390/s150511787

Figure 7.

Figure 7

A calibration curve showing the electrochemical potential difference between the Mg2+-selective ZnO nanorod-covered and the Ag/AgCl reference microelectrode vs. the Mg2+ concentration. Insets show images of human adipocytes and frog oocytes with arrows pointing at measured intracellular levels of Mg2+ for the respective cells [17].