Title
Quantitative 3D analysis of huge nanoparticle assemblies Quantitative 3D analysis of huge nanoparticle assemblies
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Cambridge ,
Subject
Physics
Chemistry
Engineering sciences. Technology
Source (journal)
Nanoscale / Royal Society of Chemistry. - Cambridge
Volume/pages
8(2016) :1 , p. 292-299
ISSN
2040-3364
ISI
000366911700028
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Nanoparticle assemblies can be investigated in 3 dimensions using electron tomography. However, it is not straightforward to obtain quantitative information such as the number of particles or their relative position. This becomes particularly difficult when the number of particles increases. We propose a novel approach in which prior information on the shape of the individual particles is exploited. It improves the quality of the reconstruction of these complex assemblies significantly. Moreover, this quantitative Sparse Sphere Reconstruction approach yields directly the number of particles and their position as an output of the reconstruction technique, enabling a detailed 3D analysis of assemblies with as many as 10 000 particles. The approach can also be used to reconstruct objects based on a very limited number of projections, which opens up possibilities to investigate beam sensitive assemblies where previous reconstructions with the available electron tomography techniques failed.
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Full text (open access)
https://repository.uantwerpen.be/docman/irua/54fbd8/129691.pdf
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