期刊
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
卷 397, 期 6, 页码 2429-2437出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-010-3832-3
关键词
FTIR; Photoemission; Raman; Staphylococcus aureus; Wall teichoic acid
This work reports an investigation of S. aureus wall teichoic acid (WTA) and compares this biopolymer with its major occurring components, d-alanine and glycerol phosphate. Detailed insight into molecular structures and electronic properties is obtained by vibrational and photoemission spectroscopy. Calculations are performed to support the analysis of our experimental vibrational spectra. It is shown that there are contributions of positive and negative charges in WTAs, but the number of negative charges is expected to be higher. The presence of both positive and negative charges on WTA may offer a route for modification of surfaces with the objective of avoiding the formation of biofilms.
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