Nonvolatile bio-memristor fabricated with natural bio-materials from spider silk

The employ of nontoxic biomaterials as the basic building blocks of electronic devices is of growing interest for biocompatible and environmentally friendly electronics. Herein the fabrication and characterization of natural biomaterials-based bio-memristors with Ag/Fibroin/Au/Si structure is demonstrated. We observed a significant bipolar resistive switching behavior in Ag/Fibroin/Au/Si structure at room temperature. The results suggested that the memory behavior originates from the formation and rupture of conductive filaments. This work reveals that fibroin from spider silk is a useful natural biomaterial for nonvolatile memory applications, suggesting that spider silk possesses the potential for sustainable electronics and data storage.