Fig. 14
From: Nanostructured plasmonic substrates for use as SERS sensors
A, B Reproduced with permission from Ref. [84], © 2015, John Wiley and Sons. C, D Reproduced with permission from Ref. [86], © 2014, Royal Society of Chemistry
Food and environmental security tests. A Schematic diagram of a SERS chip prepared for bacterial detection. B Raman spectra obtained from bare SERS chips, prepared without 4-MPBA, and in contact with E. coli (I) or S. aureus (II), obtained from a SERS substrate treated with 4-MPBA and in contact with E. coli (III) and S. aureus (IV), or a 4-MPBA treated SERS substrate in the absence of bacteria (V). C TEM image of Fe3O4@Ag NPs and XRD measurement of Fe3O4 and Fe3O4@Ag. D Raman spectra of arsenite (As(III)) and arsenate (As(V)) in 12 different samples of As-contaminated groundwater.