title: Heterogeneous binding of lipoteichoic acid to the surface of titanium dioxide as determined with 31P solid-state NMR spectroscopy.
abstract: The adsorption of lipoteichoic acid onto the surface of titanium dioxide is shown to be heterogeneous. 31P CPMAS solid-state NMR reveals two distinct phosphate species. The chemical shift anisotropy, asymmetry parameter, and rotating-frame spin-lattice relaxation suggest that 50% of the phosphates are bound to the surface. The remaining phosphates also exhibit restricted molecular motion, but do not have a direct surface bond.
authors.affiliation: Department of Chemistry and Biochemistry, University of Oklahoma, 620 Parrington Oval, Room 208, Norman, Oklahoma 73019, USA. rice@ou.edu
authors.forename: Charles V
authors.initials: CV
authors.lastname: Rice
authors.forename: Jason R
authors.initials: JR
authors.lastname: Wickham
mesh_terms: D018441:Biofilms; D003198:Computer Simulation; D008070:Lipopolysaccharides / Q000737:chemistry* / Q000378:metabolism; D019906:Nuclear Magnetic Resonance, Biomolecular; D010758:Phosphorus; D013211:Staphylococcus aureus / Q000737:chemistry / Q000378:metabolism; D013682:Teichoic Acids / Q000737:chemistry* / Q000378:metabolism; D014025:Titanium / Q000737:chemistry*
chemical_list: D008070:Lipopolysaccharides; D013682:Teichoic Acids; C009495:titanium dioxide; D010758:Phosphorus; C009900:lipoteichoic acid; D014025:Titanium