Table 1 Surface-enhanced Raman spectroscopy (SERS) peak assignments of pellets of biofilm forming bacterial strains

From: The dual-species biofilm formed by Staphylococcus aureus and Pseudomonas fluorescens exhibited enhanced resistance to disinfectants

SERS peaks (cm−1)

Peak Assignment

Components

Ref.

562

CC skeletal; C-O-C glycosidic ring deformation of polysaccharide; COO- wagging

Carbohydrates

40

785

Cytosine, Uracil (ring, stretching)

DNA/RNA

43

856

C-O-C stretching of glycosidic linkage saccharides; Stretching in Proline (CC) and CCH deformation in ring breathing of tyrosine; Gram-positive cell wall (teichuronic acid)

Protein

29

1130

CC, CO, -COH

Carbohydrates

44

1337

Amide III; C-OH, HC-C deformation of polysaccharide; C-H deformation; Adenine

DNA/RNA

41

1588

A and G stretching

DNA/RNA

 
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