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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1021/la402749y
|2 doi
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|a DE-627
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|a eng
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| 100 |
1 |
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|a Thwala, Justice M
|e verfasserin
|4 aut
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| 245 |
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|a Bacteria-polymeric membrane interactions
|b atomic force microscopy and XDLVO predictions
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|c 2013
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 11.06.2014
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|a Date Revised 25.11.2016
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Atomic force microscopy (AFM) in conjunction with a bioprobe developed using a polydopamine wet adhesive was used to directly measure the adhesive force between bacteria and different polymeric membrane surfaces. Bacterial cells of Pseudomonas putida and Bacillus subtilis were immobilized onto the tip of a standard AFM cantilever, and force measurements made using the modified cantilever on various membranes. Interaction forces measured with the bacterial probe were compared, qualitatively, to predictions by the extended Derjaguin-Landau-Verwey-Overbeek (XDLVO) theory with steric interactions included. The XDLVO theory predicted attractive interactions between low energy hydrophobic membranes with high energy hydrophilic bacterium (P. putida). It also predicted a shallow primary maximum with the most hydrophilic bacterium, B. subtilis . Discrepancies between predictions using the XDLVO theory and theory require involvement of factors such as bridging effects. Differences in interaction between P. putida and B. subtilis are attributed to acid-base interactions and steric interactions. P. putida is Gram negative with lipopolysaccharides present in the outer cell membrane. A variation in forces of adhesion for bacteria on polymeric membranes studied was interpreted in terms of hydrophilicity and interfacial surface potential calculated from physicochemical properties
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Membranes, Artificial
|2 NLM
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|a Li, Minghua
|e verfasserin
|4 aut
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|a Wong, Mavis C Y
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kang, Seoktae
|e verfasserin
|4 aut
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|a Hoek, Eric M V
|e verfasserin
|4 aut
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|a Mamba, Bhekie B
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1985
|g 29(2013), 45 vom: 12. Nov., Seite 13773-82
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:29
|g year:2013
|g number:45
|g day:12
|g month:11
|g pages:13773-82
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|u http://dx.doi.org/10.1021/la402749y
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