Detection of Bacillus anthracis Spores Using Peptide Functionalized SERS-Active Substrates

Figure 2

SERS of (A) 10⁹ spores/mL B. anthracis-Sterne bound to the B. anthracis-Sterne peptide functionalized SERS-active substrate, (B) 5 mg/mL B. anthracis-Sterne peptide functionalized SERS-active substrate, and (C) 1 mg/mL cysteine. Spectral conditions: 80 mW of 785 nm irradiation at the sample, 1 min acquisition time, 8 cm⁻¹ resolution.