Wireless Information Transmission System Powered by an Abiotic Biofuel Cell Implanted in an Orange

Abstract

Abstract An “abiotic” biofuel cell composed of catalytic electrodes modified with inorganic nanoparticles (NPs) deposited on carbon black (CB) was used to activate a wireless information transmission system. The cathode and anode were made of carbon paper modified with Pt‐NPs/CB and buckypaper modified with Au 80 Pt 20 ‐NPs/CB, respectively. The cathode/anode pair was implanted in orange pulp extracting power from its content (glucose and fructose in the juice). The open circuit voltage, V oc , short circuit current density, j sc , and maximum power produced by the biofuel cell, P max , were found as 0.36 V, 1.3 mA cm −2 and 182 µW, respectively. The voltage produced by the biofuel cell was amplified with an energy harvesting circuit and applied to a wireless transmitter. The present study continues the research line where different implantable biofuel cells are used for activation of electronic devices.