Malignant tissue phantom dielectric properties investigation at microwave frequencies

Microwave techniques for biomedical applications aimed at cancer treatment or diagnosis, either by imaging or spectroscopy, are promising. Their use relies on knowledge of the dielectric properties of tissues, especially on a detectable difference between malignant and normal tissues. As most studies investigated the dielectric properties of ex vivo tissues, there is a need for better biophysical understanding of human tissues in their living state. The paper deals with investigation of dielectric qualities of pure glucose, glucose in solutions like phantoms of biological tissues directing the attention at its manifestation at carcinoma cells investigation by means of microwaves. Simple and well-known theoretical formulas are used for unambiguous determination of complex permittivity. Experimental results from these investigations are given and their evaluation is presented.