A portablemagnetic surface Raman-enhanced scattering (SERS) nanoparticle arrays platform would be developed for magnetic separationSERS detection of environmental, water,biomolecules samples. It is very simplerapid platform with portable Raman spectroscopy to detect molecules without labelling the fluorescence dye,the limit of detection concentration is lower than 10-8 M.

Since the Ag nanoparticles are adsorbed on both sides of 2D nanosheets, novel nanohybrid arrays of Ag-on-2D nanosheetsthree-dimensional (3D) hotjunctions  were discovered for improving the stability of free nanoparticlesthe mobility of rigid (glasssilicon-based) substrates in surface-enhanced Raman scattering (SERS) detection technology at our lab.

Due to the problem of food safetyindustry water pollutants, the in-situ detection for these issues is necessary. Raman spectroscopy displays some adavantages, such as (1) varied samples can be detected (2) the sample preparation is easy without fluorescence labeling (3) it is feasible to detect in the water solution, is convenient to detect biomolecules, bacteria, fooddrug samples.