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|e rakwb
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|a eng
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|a Parikh, Sanjai J
|e verfasserin
|4 aut
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|a ATR-FTIR spectroscopy reveals bond formation during bacterial adhesion to iron oxide
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|c 2006
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
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|2 rdamedia
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|a Date Completed 11.09.2007
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|a Date Revised 09.01.2024
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|a published: Print
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|a Citation Status MEDLINE
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|a The contribution of various bacterial surface functional groups to adhesion at hematite and ZnSe surfaces was examined using attenuated total reflectance (ATR) Fourier transform infrared (FTIR) spectroscopy. When live Shewanella oneidensis, Pseudomonas aeruginosa, and Bacillus subtilis cells were introduced to a horizontal hematite (alpha-Fe(2)O(3))-coated internal reflection element (IRE), FTIR peaks emerged corresponding to bacterial phosphate group binding. These IR peaks were not observed when bacteria were introduced to the uncoated ZnSe IRE. When cells were added to colloidal suspensions of alpha-Fe(2)O(3) at pH 7, spectra included peaks corresponding to P-OFe and nu(COOH), the latter being attributed to bridging of carboxylate at mineral surface OH groups. Selected model organic compounds with P-containing functionalities (phenylphosphonic acid [PPA], adenosine 5'-monophosphate [AMP], 2'-deoxyadenyl(3'-->5')-2'-deoxyadenosine [DADA], and deoxyribonucleic acid [DNA]) produce spectra with similar peaks corresponding to P-OFe when adsorbed to alpha-Fe(2)O(3). The data indicate that both terminal phosphate/phosphonate and phosphodiester groups, either exuded from the cell or present as surface biomolecules, are involved in bacterial adhesion to Fe-oxides through formation of innersphere Fe-phosphate/phosphonate complexes
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|a Journal Article
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|a Research Support, U.S. Gov't, Non-P.H.S.
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|a Ferric Compounds
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|a Selenium Compounds
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|a Zinc Compounds
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|a ferric oxide
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|a Chorover, Jon
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1991
|g 22(2006), 20 vom: 26. Sept., Seite 8492-500
|w (DE-627)NLM098181009
|x 0743-7463
|7 nnns
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|g volume:22
|g year:2006
|g number:20
|g day:26
|g month:09
|g pages:8492-500
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