Mid-Infrared Versus Far-Infrared (THz) Relative Intensities of Room-temperature Bacillus Spores

Journal Article · Mon Feb 14 00:00:00 EST 2005 · Chemical Physics Letters

DOI:https://doi.org/10.1016/j.cplett.2004.12.095· OSTI ID:15011223

Johnson, Timothy J; Valentine, Nancy B; Sharpe, Steven W

We have simultaneously recorded the mid-IR and far-IR (sometimes called terahertz, THz) spectra of the sporulated form of five common Bacillus bacteria: Bacillus subtilis ATCC 49760, Bacillus subtilis ATCC 6051, B. thuringiensis subsp. kurstaki ATCC 35866, Bacillus globigii 01, and B. atrophaeus 49337. The 295 K spectra were recorded from {approx}8 to 6,000 cm{sup -1} of samples deposited onto windows transparent in both the mid- and far-infrared. The results indicate that any room-temperature THz absorption features due to the bacterial spores are at least 28 times weaker (based on p-p noise) than the corresponding mid-IR amide I band.

• Research Organization: Pacific Northwest National Lab., Richland, WA (US), Environmental Molecular Sciences Laboratory (US)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 15011223
• Report Number(s): PNNL-SA-43394; CHPLBC; 5116; NN2001000; TRN: US200505%%109
• Journal Information: Chemical Physics Letters, Vol. 403, Issue 1-3; Other Information: PBD: 14 Feb 2005; ISSN 0009-2614
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
ABSORPTION
AMIDES
BACILLUS
BACILLUS SUBTILIS
BACTERIA
BACTERIAL SPORES
SPECTRA
SPORES
ENVIRONMENTAL MOLECULAR SCIENCES LABORATORY