Fluorescent nanodiamonds enable all-optical imaging of voltage (up to 16 mV Hz^{-1/2}) and ion concentration (1.8% per mM NaCl) via reversible NV charge state switching in aqueous cells.
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Ion Concentration and Voltage Imaging with Fluorescent Nanodiamonds
Fluorescent nanodiamonds enable all-optical imaging of voltage (up to 16 mV Hz^{-1/2}) and ion concentration (1.8% per mM NaCl) via reversible NV charge state switching in aqueous cells.