Fully Degradable Food-Based Solenoids and Radio Frequency Circuits for Green Electronics

Abstract

Herein, edible solenoids are introduced, which are realized by coating spaghetti with edible gold leaves, creating fully edible and functional radio frequency (RF) electronic components. As a proof-of-principle of their use in RF circuits, a completely edible passive inductor-capacitor (LC) resonator at ≈200 MHz is demonstrated. The results significantly expand the applications of edible electronics to RF regime, supporting future developments in edible sensing and edible robotic systems, emerging fields with a high grade of sustainability.