▎ 摘　　要

NOVELTY - A graphene oxide/silver nanoparticle/pyramidal poly(methyl methacrylate) three-dimensional flexible Raman reinforced substrate comprises graphene oxide layer, silver nanoparticle layer, and poly(methyl methacrylate) layer. USE - Graphene oxide/silver nanoparticle/pyramidal poly(methyl methacrylate) three-dimensional flexible Raman reinforced substrate for Raman enhanced spectrum (claimed). ADVANTAGE - The Raman reinforced substrate has high sensitivity, better stability and high uniformity Raman enhanced signal. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing a graphene oxide/silver nanoparticle/pyramidal poly(methyl methacrylate) three-dimensional flexible Raman reinforced substrate.