  The aim of this paper is to propose an optimal control optimization algorithm
for reconstructing admittivity distributions (i.e., both conductivity and
permittivity) from multi-frequency micro-electrical impedance tomography. A
convergent and stable optimization scheme is shown to be obtainable from
multi-frequency data. The results of this paper have potential applicability in
cancer imaging, cell culturing and differentiation, food sciences, and
biotechnology.
