Detection of Bacillus anthracis Spores Using Peptide Functionalized SERS-Active Substrates : Figure 1

Figure 1: RS of (A) B. cereus, (B) B. subtilis, and (C) B. anthracis-Sterne spores, compared to (D) calcium dipicolinate. Spectral conditions: 500 mW of 1064 nm irradiation at the sample, (A–C) 20 min, (D) 5 min acquisition time, 8 cm⁻¹ resolution.