Biosensors based on the thin-film magnetoresistive sensors

The review considered the state-of-the-art in the development of devices for detection of the agents of disease on the basis of the Lab on a chip (LOC) biosensors whose detecting element is a matrix of thin-film anisotropic magnetoresistive (AMR), magnetoresistive (GMR), or spin-tunnel magnetoresistive (STMR) magnetic field sensors based on the multi-chip planar technology. Data were presented on the nanospherical superparamagnetics used in many biological applications as the magnetic labels. The review is oriented to the technical experts, and in this connection the biological fundamentals of the method of determination of biological activity with the use of the MR biosensor were given in a nutshell.