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Supporting information may be found in the online version of this article.

FilenameFormatSizeDescription
jrs_4341_fs1.tifTIFF image781K(a) The process of the target samples preparation for SERS testing; (b) the normal Raman spectra of a-PMMA film and nanospheres.
jrs_4341_fs2.tifTIFF image450K(a) The normal Raman spectra of a-PMMA nanospheres at different heating temperatures. (b) The ratio of Raman intensity at specific bands: I814/I1450, I814/I1730 and I1730/I1450.
jrs_4341_fs3.tifTIFF image359KRepresentative SERS spectra of a-PMMA nanospheres adsorbed on (a) Ag-ED nanoparticles and (b) Ag-CS nanoplates substrates at various concentration: c = 10−7 g/l, c = 10−6 g/land c = 10−5 g/l, respectively.
jrs_4341_fs4.tifTIFF image2545KSEM images of a-PMMA nanospheres adsorbed on (a) Ag-ED nanoparticles and (b) Ag-CS nanoplates substrates at various concentration, (a1) and (b1): c = 10−7 g/l, (a2) and (b2): c = 10−6 g/l, (a3) and (b3): c = 10−5 g/l.
jrs_4341_fS5.tifTIFF image405KSERS spectra from a-PMMA nanospheres adsorbed on the surface of two Ag substrates (a) Ag-ED nanoparticles and (b) Ag-CS nanoplates after heating at 100 °C, 120 °C and 160 °C for 1 h.
jrs_4341_supplementary material.docWord document2645KSupporting Information

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