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231224s2011 xx |||||o 00| ||eng c |
| 024 |
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|a 10.1021/la2007809
|2 doi
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|a pubmed24n0693.xml
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Zhu, Liwen
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Reliable measurements of interfacial slip by colloid probe atomic force microscopy. I. Mathematical modeling
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|c 2011
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 23.09.2011
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|a Date Revised 31.05.2011
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a We developed a stable spread-sheet algorithm for the calculation of the hydrodynamic forces measured by colloid probe atomic force microscopy to be used in investigations of interfacial slip. The algorithm quantifies the effect on the slip hydrodynamic force for factors commonly encountered in experimental measurements such as nanoparticle contamination, nonconstant drag force due to cantilever bending that varies with different cantilevers, flattening of the microsphere, and calibration at large separations. We found that all of these experimental factors significantly affect the fitted slip length, approximately in the order listed. Our modeling is applied to fit new experimental data reproducibly. Using this new algorithm, it is shown that the fitting of hydrodynamic theories to experimental data is reliable and the fitted slip length is accurate. A "blind test" protocol was developed that produces a reliable estimate of the fitting error in the determination of both the slip length and spring constant. By this blind test, we estimate that our modeling determines the fitted slip length with an average systematic error of 2 nm and the fitted spring constant with a 3% error. Our exact calculation of the drag force may explain previous reports that the fitted slip length depends upon the shape and spring constant of the cantilever used to perform the measurements
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| 650 |
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|a Journal Article
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| 700 |
1 |
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|a Attard, Phil
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Neto, Chiara
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 27(2011), 11 vom: 07. Juni, Seite 6701-11
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
8 |
|g volume:27
|g year:2011
|g number:11
|g day:07
|g month:06
|g pages:6701-11
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| 856 |
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|u http://dx.doi.org/10.1021/la2007809
|3 Volltext
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