Electrical characteristics of biological cells are important indices for obtaining information about the state and function of a cell. In this paper, we report the development of microdevices for physioelectirical measurement of cells by applying nano/microfabrication technologies. These devices enable the highly precise measurement of cell membrane potential and zeta potential of individual cells in a minimally invasive manner. Such a fusion of the microdevice technologies and biotechnologies is expected to provide powerful diagnostic tools for future cell study and cell therapy.
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