Manfait, M.

spectra colony raman spectroscopy microorganism cluster layer method strain fication culture analysis position surface cluster analysis identi fication ft-ir difference heterogeneity study measurement raman spectra microbiol identi spectrum aureus culture medium growth difference spectrum development surface layers ft-ir spectra microcolonie ft-ir spectroscopy microcolony 24- result vibrational technique carotenoid sample medium spectroscopic naumann dendrogram bacteria group center uorescence variance 54.8 bio films depth euclidean distance measure coli cip 53.126 fl uorescence spectra 24- h colonies infection 24- h colony fourier 6- h cultures region formation 24- h cultures microscope vibrational spectroscopic techniques database 1999. laser raman spectroscopy raman microspectroscopy 1991. fi rst antimicrobial agents measurement positions 12- microspectroscopy antimicrobial classi glycocalyx