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For different cancer diagnostics or/and therapies the detection of the magnetic particles (MPs) incorporated into living tissues is requested. At the same time their studies have certain restrictions for testing by physical methods coming from variety of interconnected complex processes, which exist in the living matter. To minimize this uncertainty one can use model materials, which reproduce the selected features of the living systems. Ferrogels (FG) with MPs can be used as a model material reflecting the main properties of the living tissue.

In this work, gels and FGs with a polymeric network of polyacrylamide were synthesized by radical polymerization of monomeric acrylamide (AAm) in water solution at three level of concentration: 1.1 M, 0.85 M and 0.58 M providing gels with varying elasticity. Micron sized magnetic particles (content varied from 0 up to 5.2 wt%) of commercial magnetite and strontium hexaferrite were used as fillers. To improve FGs biocompatibility and to prevent the precipitation of the particles, polysaccharide thickeners (guar gum or xanthan gum) were used. The magnetic and mechanical properties of FGs and their deformation in a uniform magnetic field were comparatively analyzed.