OATAO - Open Archive Toulouse Archive Ouverte Open Access Week

Conformational changes influence clogging behavior of micrometer-sized microgels in idealized multiple constrictions

Bouhid de Aguiar, Izabella and Meireles, Martine and Bouchoux, Antoine and Schroën, Karin Conformational changes influence clogging behavior of micrometer-sized microgels in idealized multiple constrictions. (2019) Scientific Reports, 9 (1). ISSN 2045-2322

[img]
Preview
(Document in English)

PDF (Publisher's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
1MB

Official URL: https://doi.org/10.1038/s41598-019-45791-y

Abstract

Clogging of porous media by soft particles has become a subject of extensive research in the last years and the understanding of the clogging mechanisms is of great importance for process optimization. The rise in the utilization of microfluidic devices brought the possibility to simulate membrane filtration and perform in situ observations of the pore clogging mechanisms with the aid of high speed cameras. In this work, we use microfluidic devices composed by an array of parallel channels to observe the clogging behavior of micrometer sized microgels. It is important to note that the microgels are larger than the pores/constrictions. We quantify the clog propensity in relation to the clogging position and particle size and find that the majority of the microgels clog at the first constriction independently of particle size and constriction entrance angle. We also quantify the variations in shape and volume (2D projection) of the microgels in relation to particle size and constriction entrance angle. We find that the degree of deformation increases with particle size and is dependent of constriction entrance angle, whereas, changes in volume do not depend on entrance angle.

Item Type:Article
Additional Information:Open Access This article is licensed under a Creative Commons Attribution 4.0 International License
HAL Id:hal-02290262
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
French research institutions > Institut National de la Recherche Agronomique - INRA (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Wageningen University & Research - WUR (NETHERLANDS)
Laboratory name:
Funders:
European Commission–Education
Statistics:download
Deposited By: Loetitia MOYA
Deposited On:17 Sep 2019 13:11

Repository Staff Only: item control page