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|a (NLM)15743087
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Yan, Xiaoping
|e verfasserin
|4 aut
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|a Reduction of friction at oxide interfaces upon polymer adsorption from aqueous solutions
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|c 2004
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
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|b nc
|2 rdacarrier
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|a Date Completed 04.01.2006
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|a Date Revised 26.10.2019
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Reduction of the interfacial friction for the contact of a silicon oxide surface with sodium borosilicate in aqueous solutions has been accomplished through the adsorption of poly(L-lysine)-graft-poly(ethylene glycol) on one or both surfaces. Spontaneous polymer adsorption has been achieved via the electrostatic attraction of the cationic polylysine polymer backbone and a net negative surface charge, present for a specific range of solution pH values. Interfacial friction has been measured in aqueous solution, in the absence of wear, and on a microscopic scale with atomic force microscopy. The successful investigation of the polymer-coated interfaces has been aided by the use of sodium borosilicate microspheres (5.1 microm diameter) as the contacting probe tip. Measurements of interfacial friction as a function of applied load reveal a significant reduction in friction upon the adsorption of the polymer, as well as sensitivity to the coated nature of the interface (single-sided versus two-sided) and the composition of the adsorbed polymer. These measurements demonstrate the fundamental opportunity for lubrication in aqueous environments through the selective adsorption of polymer coatings
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|a Journal Article
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|a Perry, Scott S
|e verfasserin
|4 aut
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1 |
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|a Spencer, Nicholas D
|e verfasserin
|4 aut
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1 |
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|a Pasche, Stéphanie
|e verfasserin
|4 aut
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| 700 |
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|a De Paul, Susan M
|e verfasserin
|4 aut
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|a Textor, Marcus
|e verfasserin
|4 aut
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|a Lim, Min Soo
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 20(2004), 2 vom: 20. Jan., Seite 423-8
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|x 1520-5827
|7 nnns
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| 773 |
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|g volume:20
|g year:2004
|g number:2
|g day:20
|g month:01
|g pages:423-8
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