Detection of Bacillus subtilis spores in water by means of broadband coherent anti-Stokes Raman spectroscopy.

Abstract

Broadband coherent anti-Stokes Raman scattering (CARS) spectroscopy is used for detection of bacterial spores in aqueous solution. Polarization CARS spectroscopy is employed to suppress the non-resonant background. CARS spectrum recorded in the spectral region from 700 to 1900 cm(-1) exhibits all the characteristic features of spontaneous Raman spectrum taken for a solid powder and resembles that one of the dipicolinic acid, which is considered to be the major component of bacterial spores, including anthrax.

• Authors: Georgi Petrov, Vladislav Yakovlev, Alexei Sokolov, Marlan Scully
• Journal: Optics express (Opt Express) Vol. 13 Issue 23 Pg. 9537-42 (Nov 14 2005) ISSN: 1094-4087 [Electronic] United States
• PMID: 19503156 (Publication Type: Journal Article)