Characterization of biological cells by dielectric spectroscopy (CAT#: STEM-ST-0354-WXH)

Introduction

Dielectric spectroscopy has proven to be a useful technique for analyzing heterogeneous systems, especially biological cell suspensions and tissues because of its capability of non-invasive measurements. The application of dielectric spectroscopy is no longer limited to academic researches, but also includes industrial bioprocess controls and medical diagnostics.

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Principle Applications Procedure Materials Notes Related Products

Principle

The principle of this technique is to apply an AC signal of small amplitude to an electrode immersed into an electrolyte. The initial disturbance (applied) and the response of the electrode is compared by measuring the phase shift of the current and voltage components and by the measurements of their amplitudes.

Applications

Used to study the response of a sample subjected to an applied electric field of fixed or changing frequency. DS describes the dielectric properties of a material as a function of frequency.

Materials

Dielectric spectrometer

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