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Multimethod 3D characterization of natural plate-like nanoparticles: shape effects on equivalent size measurements

Gallego-Urrea, Julian Alberto; Hammes, Julia; Cornelis, Geert and Hassellov, Martin (2014) In Journal of Nanoparticle Research 16(5). p.2383-2383
Abstract
The fundamental properties and processes that govern nanoparticle behavior in colloidal dispersions are critical to predict their performance in applications and also their environmental and health implications. Illite is a platy clay mineral that is present in large amounts in aquatic environments and can be used as a model natural particle for environmental risk assessment. However, the high-aspect ratio of illite makes conventional analysis, usually assuming a spherical size, insufficient for the assessment of shape-dependent properties. In the current paper, a multimethod characterization of a suspension of illite particles was done using atomic force microscopy, scanning electron microscopy, dynamic light scattering (DLS),... (More)
The fundamental properties and processes that govern nanoparticle behavior in colloidal dispersions are critical to predict their performance in applications and also their environmental and health implications. Illite is a platy clay mineral that is present in large amounts in aquatic environments and can be used as a model natural particle for environmental risk assessment. However, the high-aspect ratio of illite makes conventional analysis, usually assuming a spherical size, insufficient for the assessment of shape-dependent properties. In the current paper, a multimethod characterization of a suspension of illite particles was done using atomic force microscopy, scanning electron microscopy, dynamic light scattering (DLS), nanoparticle tracking analysis, differential centrifugal sedimentation, and centrifugal-field flow fractionation coupled to multiangle light scattering and DLS. The relation between the different measurands was investigated, and the effect of the shape on the equivalent particle size was reported. While some of the used techniques are capable of assessing the aspect ratio of illite, the results confirm the need for multiple techniques and analysis of different types of measurands especially for high-aspect-ratio particles. (Less)
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author
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Colloids, Illite, Clay mineral, Natural nanoparticles, Aquatic colloids, nanoparticles, Aquatic, Multimethod characterization, High-aspect ratio nanoparticles
in
Journal of Nanoparticle Research
volume
16
issue
5
pages
2383 - 2383
publisher
Springer
external identifiers
  • scopus:84901325492
ISSN
1572-896X
DOI
10.1007/s11051-014-2383-5
project
MERGE
language
English
LU publication?
no
id
165ed9e6-8798-44f4-a161-075393dd1e6e (old id 4863374)
date added to LUP
2014-12-15 14:58:47
date last changed
2017-09-10 03:19:22
@article{165ed9e6-8798-44f4-a161-075393dd1e6e,
  abstract     = {The fundamental properties and processes that govern nanoparticle behavior in colloidal dispersions are critical to predict their performance in applications and also their environmental and health implications. Illite is a platy clay mineral that is present in large amounts in aquatic environments and can be used as a model natural particle for environmental risk assessment. However, the high-aspect ratio of illite makes conventional analysis, usually assuming a spherical size, insufficient for the assessment of shape-dependent properties. In the current paper, a multimethod characterization of a suspension of illite particles was done using atomic force microscopy, scanning electron microscopy, dynamic light scattering (DLS), nanoparticle tracking analysis, differential centrifugal sedimentation, and centrifugal-field flow fractionation coupled to multiangle light scattering and DLS. The relation between the different measurands was investigated, and the effect of the shape on the equivalent particle size was reported. While some of the used techniques are capable of assessing the aspect ratio of illite, the results confirm the need for multiple techniques and analysis of different types of measurands especially for high-aspect-ratio particles.},
  author       = {Gallego-Urrea, Julian Alberto and Hammes, Julia and Cornelis, Geert and Hassellov, Martin},
  issn         = {1572-896X},
  keyword      = {Colloids,Illite,Clay mineral,Natural nanoparticles,Aquatic colloids,nanoparticles,Aquatic,Multimethod characterization,High-aspect ratio nanoparticles},
  language     = {eng},
  number       = {5},
  pages        = {2383--2383},
  publisher    = {Springer},
  series       = {Journal of Nanoparticle Research},
  title        = {Multimethod 3D characterization of natural plate-like nanoparticles: shape effects on equivalent size measurements},
  url          = {http://dx.doi.org/10.1007/s11051-014-2383-5},
  volume       = {16},
  year         = {2014},
}