Label free biosensors for human cell characterization using radio and microwave frequencies

A novel micro biosensor concept functioning at microwave frequencies has been developed in order to study the intrinsic electrical parameters of human cells. This sensor is based on a resonant structure allowing a sensitive detection which associated to its microscopic size permits to work at the scale of one cell. The proposed bio-sensing method presents the advantage to be a label free method and allows potentially cell identification and discrimination. Hence, using a specific experimental protocol, tests performed have demonstrated the biosensor ability to differentiate at least two particular cell types.