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|a eng
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| 100 |
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|a Mohraz, Ali
|e verfasserin
|4 aut
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|a Direct visualization of colloidal rod assembly by confocal microscopy
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|c 2005
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|a Text
|b txt
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|a ohne Hilfsmittel zu benutzen
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|a Date Completed 28.07.2006
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|a Date Revised 31.05.2005
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a The development of model materials and image processing methods to directly visualize and quantify colloidal rod assembly by means of confocal laser scanning microscopy (CLSM) is reported. Monodisperse fluorescent colloidal rods are prepared by the uniaxial extensional deformation of sterically stabilized microspheres at elevated temperatures. The particles are stably dispersed in refractive index matching mixed organic solvents for CLSM. An image processing algorithm is developed to detect rod backbones and extract particle centroids and orientation angles from the CLSM image volumes. By means of these methods we quantify the distribution of rod orientation angles in self-assembled structures of rods formed by sedimentation. We find the observations to be consistent with aspect-ratio-dependent jamming and orientational order/disorder transition in the rod sediments
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|a Journal Article
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|a Solomon, Michael J
|e verfasserin
|4 aut
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 21(2005), 12 vom: 07. Juni, Seite 5298-306
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|x 1520-5827
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|g volume:21
|g year:2005
|g number:12
|g day:07
|g month:06
|g pages:5298-306
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