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Microfluidic synthesis of silica nanoparticles using polyethylenimine polymers

He, Ping; Greenway, Gillian; Haswell, Stephen J.

Authors

Ping He P.He@hull.ac.uk

Gillian Greenway G.M.Greenway@hull.ac.uk

Stephen J. Haswell



Abstract

A microfluidic reactor system for the synthesis of silica nanoparticles has been developed from commercially available ETFE tubing (0.17-1.0 mm diameter) connected in series to support the hydrolysis, nucleation and particle growth based on a sol-gel method in the presence of PEI polymer at room temperature. Two microfluidic reactor configurations, laminar flow and segmented flow, have been evaluated. Both microfluidic reactors produce particles with narrower size distributions and higher particle yields compared to batch based process. In addition, microfluidic methods offer the possibility to tune particle sizes and size distributions by varying the operation variables such as flow rate, reactor tube diameter and residence time. (C) 2010 Elsevier B.V. All rights reserved.

Journal Article Type Article
Publication Date Mar 1, 2011
Journal CHEMICAL ENGINEERING JOURNAL
Print ISSN 1385-8947
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 167
Issue 2-3
Pages 694-699
APA6 Citation He, P., Greenway, G., & Haswell, S. J. (2011). Microfluidic synthesis of silica nanoparticles using polyethylenimine polymers. Chemical Engineering Journal, 167(2-3), 694-699. https://doi.org/10.1016/j.cej.2010.08.079
DOI https://doi.org/10.1016/j.cej.2010.08.079
Keywords Microfluidics; Silica nanoparticles; PEI polymer
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