Hauptseite > Publikationsdatenbank > Flow dichroism as a reliable method to measure the hydrodynamic aspect ratio of gold nanoparticles > print

001     16099
005     20240619083337.0
024 7 _ |2 pmid
|a pmid:21545088
024 7 _ |2 DOI
|a 10.1021/nn201033x
024 7 _ |2 WOS
|a WOS:000292055200079
024 7 _ |2 ISSN
|a 1936-0851
024 7 _ |2 uri
|a 10.1021/nn201033x
024 7 _ |2 Handle
|a 2128/4416
037 _ _ |a PreJuSER-16099
041 _ _ |a eng
082 _ _ |a 540
082 _ _ |a 500
084 _ _ |2 WoS
|a Chemistry, Multidisciplinary
084 _ _ |2 WoS
|a Chemistry, Physical
084 _ _ |2 WoS
|a Nanoscience & Nanotechnology
084 _ _ |2 WoS
|a Materials Science, Multidisciplinary
100 1 _ |0 P:(DE-HGF)0
|a Reddy, N.K.
|b 0
245 _ _ |a Flow dichroism as a reliable method to measure the hydrodynamic aspect ratio of gold nanoparticles
260 _ _ |a Washington, DC
|b Soc.
|c 2011
295 1 0 |a ACS Nano, 2011, 5 (6), 4935 – 4944
300 _ _ |a 4935 - 4944
336 7 _ |a Journal Article
|0 PUB:(DE-HGF)16
|2 PUB:(DE-HGF)
336 7 _ |a Output Types/Journal article
|2 DataCite
336 7 _ |a Journal Article
|0 0
|2 EndNote
336 7 _ |a ARTICLE
|2 BibTeX
336 7 _ |a JOURNAL_ARTICLE
|2 ORCID
336 7 _ |a article
|2 DRIVER
440 _ 0 |0 18823
|a ACS Nano
|v 5
|x 1936-0851
|y 6
500 _ _ |a The authors thank Dr. P. Holmqvist for useful discussions. We thank the EU for funding through the project NANODIRECT (Grant No. CP-FP 213948-2).
500 _ _ |a Record converted from JUWEL: 18.07.2013
520 _ _ |a Particle shape plays an important role in controlling the optical, magnetic, and mechanical properties of nanoparticle suspensions as well as nanocomposites. However, characterizing the size, shape, and the associated polydispersity of nanoparticles is not straightforward. Electron microscopy provides an accurate measurement of the geometric properties, but sample preparation can be laborious, and to obtain statistically relevant data many particles need to be analyzed separately. Moreover, when the particles are suspended in a fluid, it is important to measure their hydrodynamic properties, as they determine aspects such as diffusion and the rheological behavior of suspensions. Methods that evaluate the dynamics of nanoparticles such as light scattering and rheo-optical methods accurately provide these hydrodynamic properties, but do necessitate a sufficient optical response. In the present work, three different methods for characterizing nonspherical gold nanoparticles are critically compared, especially taking into account the complex optical response of these particles. The different methods are evaluated in terms of their versatility to asses size, shape, and polydispersity. Among these, the rheo-optical technique is shown to be the most reliable method to obtain hydrodynamic aspect ratio and polydispersity for nonspherical gold nanoparticles for two reasons. First, the use of the evolution of the orientation angle makes effects of polydispersity less important. Second, the use of an external flow field gives a mathematically more robust relation between particle motion and aspect ratio, especially for particles with relatively small aspect ratios.
536 _ _ |a BioSoft: Makromolekulare Systeme und biologische Informationsverarbeitung
|0 G:(DE-Juel1)FUEK505
|c P45
|2 G:(DE-HGF)
|x 0
536 _ _ |a NANODIRECT - Toolbox for Directed and Controlled Self-Assembly of nano-Colloids (213948)
|0 G:(EU-Grant)213948
|c 213948
|x 1
|f FP7-NMP-2007-SMALL-1
542 _ _ |l Copyright: American Chemical Society The publication is available at: http://pubs.acs.org/doi/abs/10.1021/nn201033x
588 _ _ |a Dataset connected to Web of Science, Pubmed
650 _ 2 |2 MeSH
|a Gold: chemistry
650 _ 2 |2 MeSH
|a Hydrodynamics
650 _ 2 |2 MeSH
|a Light
650 _ 2 |2 MeSH
|a Metal Nanoparticles: chemistry
650 _ 2 |2 MeSH
|a Microscopy, Electron: methods
650 _ 2 |2 MeSH
|a Microscopy, Electron, Transmission: methods
650 _ 2 |2 MeSH
|a Models, Statistical
650 _ 2 |2 MeSH
|a Nanoparticles
650 _ 2 |2 MeSH
|a Nanotechnology: methods
650 _ 2 |2 MeSH
|a Optics and Photonics
650 _ 2 |2 MeSH
|a Particle Size
650 _ 2 |2 MeSH
|a Rheology: methods
650 _ 2 |2 MeSH
|a Scattering, Radiation
650 _ 7 |0 7440-57-5
|2 NLM Chemicals
|a Gold
650 _ 7 |2 WoSType
|a J
650 _ 7 |a transmission electron microscopy
650 _ 7 |a Brownian motion
650 _ 7 |a Jeffery orbits
650 _ 7 |a depolarized dynamic light scattering
653 2 0 |2 Author
|a gold rod
653 2 0 |2 Author
|a gold decahedron
653 2 0 |2 Author
|a transmission electron microscopy
653 2 0 |2 Author
|a depolarized dynamic light scattering
653 2 0 |2 Author
|a Brownian motion
653 2 0 |2 Author
|a flow dichroism
653 2 0 |2 Author
|a Jeffery orbits
700 1 _ |0 P:(DE-HGF)0
|a Pérez-Juste, J.
|b 1
700 1 _ |0 P:(DE-HGF)0
|a Pastoriza-Santos, I.
|b 2
700 1 _ |0 P:(DE-Juel1)130789
|a Lang, P.R.
|b 3
|u FZJ
700 1 _ |0 P:(DE-Juel1)130616
|a Dhont, J.K.G.
|b 4
|u FZJ
700 1 _ |0 P:(DE-HGF)0
|a Liz-Marzan, L.
|b 5
700 1 _ |0 P:(DE-HGF)0
|a Vermant, J.
|b 6
773 _ _ |0 PERI:(DE-600)2383064-5
|a 10.1021/nn201033x
|g Vol. 5, p. 4935 - 4944
|p 4935 - 4944
|q 5<4935 - 4944
|t ACS nano
|v 5
|x 1936-0851
|y 2011
856 7 _ |u http://dx.doi.org/10.1021/nn201033x
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