Surface-Enhanced Raman Spectroscopy(SERS) could have the properties of both the information of diverse chemical fingerprints and high-sensitivity through the phenomenon of plasmon-enhanced excitation and scattering. According to the different combination of systems and structures, three types of platform were built to enhance the intensity of SERS signal. These platforms have been applied to the cascade amplification of the SERS signal for a variety of analytes, such as R6G and pesticides to date. In the future, these platforms could be used to detect many of pesticides in field trials with portable spectrometer to reduce the detection time and increases convenience for customers.

Portable Raman Spectrometer, Surface-Enhanced Raman Spectroscopy, Multifunctional Nano Platform