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000017876 0247_ $$2DOI$$a10.1039/C1sm05429E
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000017876 084__ $$2WoS$$aChemistry, Physical
000017876 084__ $$2WoS$$aMaterials Science, Multidisciplinary
000017876 084__ $$2WoS$$aPhysics, Multidisciplinary
000017876 084__ $$2WoS$$aPolymer Science
000017876 1001_ $$0P:(DE-Juel1)VDB88917$$aJuly, C.$$b0$$uFZJ
000017876 245__ $$aDepletion interactions caused by polydisperse platelets
000017876 260__ $$aCambridge$$bRoyal Society of Chemistry (RSC)$$c2011
000017876 300__ $$a6444 - 6450
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000017876 440_0 $$016881$$aSoft Matter$$v7$$x1744-683X$$y14
000017876 500__ $$aThe authors acknowledge financial support from the EU through FP7, project Nanodirect (Grant No. NMP4-SL-2008-213948).
000017876 520__ $$aWe investigate depletion interactions near a wall caused by polydisperse silica-coated gibbsite platelets, using total internal reflection fluorescence microscopy (TIRF) to characterize the sphere-wall interaction potential. As no theoretical model for polydisperse platelets exists, we extend a model for monodisperse depletant cylinders by assuming negligible thickness and averaging over the disc size distribution, finding nearly perfect matching with experimental data. The resulting averaged depletion potentials have, as predicted by the extended model, the same depth as monodisperse potentials, but differ in range and shape according to the size distribution. We compare mean particle sizes and standard deviations derived by TIRF with results from TEM measurements.
000017876 536__ $$0G:(DE-Juel1)FUEK505$$2G:(DE-HGF)$$aBioSoft: Makromolekulare Systeme und biologische Informationsverarbeitung$$cP45$$x0
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000017876 7001_ $$0P:(DE-Juel1)VDB56805$$aKleshchanok, D.$$b1$$uFZJ
000017876 7001_ $$0P:(DE-Juel1)130789$$aLang, P.R.$$b2$$uFZJ
000017876 773__ $$0PERI:(DE-600)2191476-X$$a10.1039/c1sm05429e$$gVol. 7, p. 6444 - 6450$$p6444 - 6450$$q7<6444 - 6450$$tSoft matter$$v7$$x1744-683X$$y2011
000017876 8567_ $$uhttp://dx.doi.org/10.1039/C1sm05429E
000017876 8564_ $$uhttps://juser.fz-juelich.de/record/17876/files/FZJ-17876.pdf$$yPublished under German "Allianz" Licensing conditions on 2011-06-03. Available in OpenAccess from 2012-06-03$$zPublished final document.
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