Laser-induced breakdown spectroscopy (LIBS) has been used to study bacterial spores, molds, pollens, and proteins. Biosamples were prepared and deposited onto porous silver substrates. LIBS data from the individual laser shots were analyzed by principal-components analysis and were found to contain adequate information to afford discrimination among the different biomaterials. Additional discrimination within the three bacilli studied appears feasible.
© 2003 Optical Society of America
Original Manuscript: March 5, 2003
Revised Manuscript: July 2, 2003
Published: October 20, 2003
Alan C. Samuels, Frank C. DeLucia, Kevin L. McNesby, and Andrzej W. Miziolek, "Laser-induced breakdown spectroscopy of bacterial spores, molds, pollens, and protein: initial studies of discrimination potential," Appl. Opt. 42, 6205-6209 (2003)