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Type: Journal article
Title: Micro droplet formation towards continuous nanoparticles synthesis
Author: Wojnicki, M.
Luty-Blocho, M.
Hessel, V.
Csapó, E.
Ungor, D.
Fitzner, K.
Citation: Micromachines, 2018; 9(5):248-1-248-12
Publisher: MDPI
Issue Date: 2018
ISSN: 2072-666X
Statement of
Marek Wojnicki, Magdalena Luty-Błocho, Volker Hessel, Edit Csapó, Ditta Ungor and Krzysztof Fitzner
Abstract: In this paper, micro droplets are generated in a microfluidic focusing contactor and then they move sequentially in a free-flowing mode (no wall contact). For this purpose, two different micro-flow glass devices (hydrophobic and hydrophilic) were used. During the study, the influence of the flow rate of the water phase and the oil phase on the droplet size and size distribution was investigated. Moreover, the influence of the oil phase viscosity on the droplet size was analyzed. It was found that the size and size distribution of the droplets can be controlled simply by the aqueous phase flow rate. Additionally, 2D simulations to determine the droplet size were performed and compared with the experiment.
Keywords: Sequential flow; droplets; microreactor; two-phase flow; simulations of 2D flow; COMSOL Multiphysics
Rights: © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (
DOI: 10.3390/mi9050248
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