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Quantification of a single aggregate inner porosity and pore accessibility using hard X-ray phase-contrast nanotomography


Trtik, P; Soos, M; Münch, B; Lamprou, A; Mokso, R; Stampanoni, M (2011). Quantification of a single aggregate inner porosity and pore accessibility using hard X-ray phase-contrast nanotomography. Langmuir, 27(21):12788-12791.

Abstract

The 3D structure of three individual aggregates composed of 165 nm polystyrene primary particles is revealed nondestructively by hard X-ray phase-contrast synchrotron nanotomography. Three-dimensional image analysis allows us for the first time to obtain the complex inner porosity of the entire aggregate. It is demonstrated that despite their rather compact structure, characterized by a fractal dimension equal to 2.7, the produced aggregates are still porous, with porosity increasing with its size. Generated pores have diameters from 100 nm to 3 μm and are almost completely interconnected.

The 3D structure of three individual aggregates composed of 165 nm polystyrene primary particles is revealed nondestructively by hard X-ray phase-contrast synchrotron nanotomography. Three-dimensional image analysis allows us for the first time to obtain the complex inner porosity of the entire aggregate. It is demonstrated that despite their rather compact structure, characterized by a fractal dimension equal to 2.7, the produced aggregates are still porous, with porosity increasing with its size. Generated pores have diameters from 100 nm to 3 μm and are almost completely interconnected.

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6 citations in Web of Science®
6 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Institute of Biomedical Engineering
Dewey Decimal Classification:170 Ethics
610 Medicine & health
Language:English
Date:2011
Deposited On:24 Feb 2012 15:46
Last Modified:05 Apr 2016 15:28
Publisher:American Chemical Society
ISSN:0743-7463
Publisher DOI:https://doi.org/10.1021/la203432v
PubMed ID:21939251

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