Optical anisotropy of magnetosome-doped polymer films

The anisotropy of several PVA/magnetosome magnetically textured films has been investigated. The thin film synthesized under the influence of a magnetic field (99 mT) shows the typical behavior of an anisotropic material. The results show that the magnetic field applied during the synthesis promotes an orientation of the chains of magnetosomes and permanent textured film is obtained after solidification. ► A new type of polymer film with bacterial magnetic particles – magnetosomes – was prepared. ► Magnetosomes tend to minimize their energy forming closed loops after isolation. ► The most preferable number of magnetosomes in one chain is around 7–8. ► A magnetic field applied during the synthesis promotes orientation of the chains of magnetosomes. ► Permanent textured magnetosome films were obtained.