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. Author manuscript; available in PMC: 2015 Sep 7.

Published in final edited form as: Analyst. 2014 Jul 14;139(17):4287–4295. doi: 10.1039/c4an00596a

PLS-DA cross-validated prediction plot based on the LBL SERS spectra of the M. pneumoniae strains. Horizontal red line denotes calculated class prediction threshold level. Predictions for: (A) background sample Ag/PAH/PSS ( ); (B) negative control SiMS/PAH/PSS/PAH/Ag/PAH/PSS ( ); and M. pneumoniae strains: (C) FH;( ); (D) M129 ( ); and; (E) II-3 ( ). Fifty spectra, corresponding to 10 spectra in each sample category, are represented in this plot.

Inline graphic — PLS-DA cross-validated prediction plot based on the LBL SERS spectra of the M. pneumoniae strains. Horizontal red line denotes calculated class prediction threshold level. Predictions for: (A) background sample Ag/PAH/PSS ( ); (B) negative control SiMS/PAH/PSS/PAH/Ag/PAH/PSS ( ); and M. pneumoniae strains: (C) FH;( ); (D) M129 ( ); and; (E) II-3 ( ). Fifty spectra, corresponding to 10 spectra in each sample category, are represented in this plot.