Ultrasensitive detection of thiram based on surface-enhanced Raman scatteringviaAu@Ag@Ag core/shell/shell bimetallic nanorods

M was achieved by taking advantage of the great SERS response of the core/shell/shell nanostructures, which was 1-2 orders of magnitude lower than for other SERS substrates. The developed SERS substrate could be readily extended to embed other target analytes into the core/shell/shell nanostructure for novel and sensitive detection. This study could enable fresh approaches toward next-generation ultrasensitive analyte detection.