Solution chemistry of self-assembled graphene nanohybrids for high-performance flexible biosensors.

摘要: We report the preparation of free-standing flexible conductive reduced graphene oxide/Nafion (RGON) hybrid films by a solution chemistry that utilizes self-assembly and directional convective-assembly. The hydrophobic backbone Nafion provided well-defined integrated structures, on micro- macroscales, for construction materials through self-assembly, while hydrophilic sulfonate groups enabled highly stable dispersibility (∼0.5 mg/mL) long-term stability (2 months) graphene. geometrically interlocked morphology RGON produced high degree mechanical integrity in films, interpenetrating network constructed favorable conduction pathways charge transport. Importantly, synergistic electrochemical characteristics were attributed to conductivity (1176 S/m), facilitated electron transfer (ET), low interfacial resistance. Consequently, obtained excellent figure merit as biosensing platforms for...