Bio‐Inspired Nacre‐like Composite Films Based on Graphene with Superior Mechanical, Electrical, and Biocompatible Properties

Bio-inspired multifunctional composite films based on reduced poly(vinyl alcohol)/graphene oxide (R-PVA/GO) layers are prepared by a facile solution casting method followed by a reduction procedure. The resulting films with nacre-like, bricks-and-mortar microstructure have excellent mechanical properties, electrical conductivity, and biocompatibility.