2 March 2015 Combined LIBS-Raman for remote detection and characterization of biological samples
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Laser-Induced Breakdown Spectroscopy (LIBS) and Raman Spectroscopy have rich histories in the analysis of a wide variety of samples in both in situ and remote configurations. Our team is working on building a deployable, integrated Raman and LIBS spectrometer (RLS) for the parallel elucidation of elemental and molecular signatures under Earth and Martian surface conditions. Herein, results from remote LIBS and Raman analysis of biological samples such as amino acids, small peptides, mono- and disaccharides, and nucleic acids acquired under terrestrial and Mars conditions are reported, giving rise to some interesting differences. A library of spectra and peaks of interest were compiled, and will be used to inform the analysis of more complex systems, such as large peptides, dried bacterial spores, and biofilms. These results will be presented and future applications will be discussed, including the assembly of a combined RLS spectroscopic system and stand-off detection in a variety of environments.
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Aaron S. Anderson, Aaron S. Anderson, Harshini Mukundan, Harshini Mukundan, Rhonda E. McInroy, Rhonda E. McInroy, Samuel M. Clegg, Samuel M. Clegg, "Combined LIBS-Raman for remote detection and characterization of biological samples", Proc. SPIE 9328, Imaging, Manipulation, and Analysis of Biomolecules, Cells, and Tissues XIII, 932811 (2 March 2015); doi: 10.1117/12.2076832; https://doi.org/10.1117/12.2076832

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