Various systems and methods utilizing composite nanoparticles or other specialized nanoparticles in the context of electromagnetic tomography are described. A method for electromagnetic imaging includes imaging a biological tissue via an electromagnetic tomography system, recording electrical activity of the biological tissue via a biomedical electrical recording system, and correlating dielectric properties of the biological tissue with an electrical signal recorded by the biomedical electrical recording system. A method for electromagnetic imaging and therapeutics using composite nanoparticles includes imaging a biological tissue, via an electromagnetic tomography system, using a material in the composite nanoparticles, implementing a therapy, via a therapeutic application system, using a material in the composite nanoparticles, wherein the implementation is carried out at least partly on the basis of information received from the electromagnetic tomography system, assessing an effect of the therapy, and controlling further implementation of the therapy based on the assessment.
