▎ 摘　　要

Layered graphene oxide sheets were bridged by carbon nanotubes bundles to build an integrated 3D architecture. This synergistic structure exhibited large flexibility, rapid transport kinetics and excellent electrochemical characteristic. It was directly used for non-enzymatic determination of dopamine with high sensitivity. Furthermore, it was a favorable matrix for immobilizing various enzymes to fabricate multifunctional biosensors. It is a robust matrix for multifunctional biosensing applications and diversified electrochemical devices. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.