The dielectric properties of biological tissue (Crassula portulacea) from 10−2 to 109 Hz

Abstract Dielectric data from 10−2 Hz to 109 Hz are given for fresh leaves of Crassula portulacea (Jade plant), liquid extracted from such leaves and extracted liquid containing a synthetic polymer film. Features associated with the bulk electrolyte, the cell walls and the electrical double layer at the electrodes of the specimen holder are clearly delineated in the data. A synthetic film is shown to produce interfacial polarization that appears quite similar to that due to cell walls. Interpretation of the data is given in terms of ionic movement through the leaf structure. The data presented here are intended to be a prototype for live tissue data and used, for example, to design synthetic dielectric phantom materials.