Microextraction based on microplastic followed by SERS for on-site detection of hydrophobic organic contaminants, an indicator of seawater pollution

Semiconductor-based surface enhanced Raman scattering (SERS): from active materials to performance improvement

“…has been widely used in various fields such as chemical and biological analysis, 2,3 medical diagnosis, 4,5 environmental analysis, 6,7 food safety, 8,9 and artwork restoration. 10 At present, the widely accepted SERS enhancement mechanism includes the electromagnetic enhancement mechanism (EM) and the chemical enhancement mechanism (CM).…”

“…1 As a powerful spectroscopic technique, SERS achieves ultratrace detection by amplifying the Raman signal of molecules and possesses the advantages of high sensitivity, fingerprint specificity, and non-destructive detection. SERS has been widely used in various fields such as chemical and biological analysis, 2,3 medical diagnosis, 4,5 environmental analysis, 6,7 food safety, 8,9 and artwork restoration. 10 At present, the widely accepted SERS enhancement mechanism includes the electromagnetic enhancement mechanism (EM) and the chemical enhancement mechanism (CM).…”

A gold nanoparticle doped flexible substrate for microplastics SERS detection

“…Therefore, Raman spectroscopy shows greater potential in the detection of MPs. 12,[18][19][20] Compared to the traditional Raman spectroscopy, SERS technology mainly uses the electromagnetic (EM) hot spot effect in the metal nanostructures to enlarge the Raman signal intensity. [21][22][23][24][25][26] Unfortunately, the hydrophobic nature of MPs hinders the formation of hot spots, which brings challenges to the application of SERS technology to MP detection.…”

Highly porous gold supraparticles as surface-enhanced Raman spectroscopy (SERS) substrates for sensitive detection of environmental contaminants

“…Surface-enhanced Raman spectroscopy (SERS) has shown its potential as an analytical technique with numerous applications in the environmental sector. [7][8][9][10][11][12][13][14] Inelastic Raman scattering reects the unique ngerprint of analytes that arise from the vibrational modes of analyte chemical bonds. SERS is the phenomenon whereby the Raman signal of an analyte is signicantly enhanced by a factor of 10 5 to 10 6 when it is situated adjacent to the surface of a plasmonic metal substrate.…”