Figure 5From: Label-free NIR-SERS discrimination and detection of foodborne bacteria by in situ synthesis of Ag colloidsOrdination plot of the principal component analysis (PCA) applied to the RAMAN spectra of the five bacterial samples recorded at 25C. LM, Listeria monocytogenes; E. coli, 511 Escherichia coli; MRSA, Methicillin Resistant Staphylococcus aureus-35; PA, Pseudomonas aeruginosa; LI, Listeria Innocua. Back to article page