Single cells and intracellular processes studied by a plasmonic-based electrochemical impedance microscopy

Electrochemical impedance spectroscopy is a useful tool for analysing biological substances, but it remains difficult to determine local details rather than average information over an electrode surface. Now, an electrochemical impedance microscope based on plasmonics has enabled the spatial and temporal study of cellular structures and processes, with submicrometre and millisecond resolutions.