The search for innovative applications in the fields of biomedicine and nanotechnology benefit the further advance in molecular communication research. Nevertheless, a fullyfunctional artificial molecular system is not yet a reality. Institute for Electronics Engineering from FAU has developed an experimental molecular communication testbed based on magnetic nanoparticles, which has demonstrated to be effective in the transmission of bit sequences encoded by SPIONs. As part of this work, an optimization of the transmitter of this setup is implemented and tested. This optimization is based on the steering of SPIONs through a desired path after a splitting by use of the magnetic force generated by an electromagnet, which is located tactically in the proximity of the tubes where the nanoparticles flow. The electromagnet size has been selected in proportion to the tubes size of the system. Also, an electronic control circuit to switch automatically the electromagnet has been designed and mounted on a protoboard. Measuring of magnetic particles amount in the tubes of the system is accomplished using a susceptometer coil, an electronic device where the magnetic particles move through and generate an electrical signal. Experimental results for magnetic susceptibility changes in both channels after the Yconnector are presented. They have not been as expected, thus, recommendations in order to acquire more reliable measurements and further advancing in the presented research work are given.

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