Introduction Magneto-Switchable Electrodes and Electrochemical Systems Modified Electrodes and Electrochemical Systems Switchable by Temperature Changes Modified Electrodes and Electrochemical Systems Switchable by Light Signals Modified Electrodes Switchable by Applied Potentials Resulting in Electrochemical Transformations at Functional Interfaces Electrochemical Systems Switchable by pH Changes Coupling of Switchable Electrodes and Electrochemical Processes with Biomolecular Computing Systems Biofuel Cells with Switchable/Tunable Power Output as an Example of Implantable Bioelectronic Devices Signal-Triggered Release of Biomolecules from Alginate-Modified Electrodes What is Next? Molecular Biology Brings New Ideas Summary and Outlook: Scaling-Up the Complexity of Signal-Processing Systems and Foreseeing New Applications Index sakriti opis