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

FilenameFormatSizeDescription
jrs_4132_supplementary_information.docWord document279KSupporting Information
jrs_4132_sm_f1.tifTIFF image8507KFigure S1. (a) Raman spectra of 0.3 M 4-MPy aqueous solution (10× magnification) and (b) SERS spectra of 10−6 M 4-MPy absorbed on the patterned Ag layer. Data acquisition was the result of a single 30-s accumulation.
jrs_4132_sm_f2.tifTIFF image8507KFigure S2. Variation of the enhancement factor with storage time. The substrate was kept in the air and was immersed in solution immediately after the Al layer was peeled off.

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