Volume 121, Issue 29 p. 5321

Titelbild: A Microfluidic Approach to Chemically Driven Assembly of Colloidal Particles at Gas–Liquid Interfaces (Angew. Chem. 29/2009)

Jai Il Park

Jai Il Park

Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto M5S 3H6, Ontario (Canada), Fax: (+1) 416-978-3576

These authors contributed equally to this work.

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Zhihong Nie Dr.

Zhihong Nie Dr.

Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto M5S 3H6, Ontario (Canada), Fax: (+1) 416-978-3576

These authors contributed equally to this work.

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Alexander Kumachev

Alexander Kumachev

Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto M5S 3H6, Ontario (Canada), Fax: (+1) 416-978-3576

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Ahmed I. Abdelrahman

Ahmed I. Abdelrahman

Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto M5S 3H6, Ontario (Canada), Fax: (+1) 416-978-3576

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Bernard P. Binks Prof. Dr.

Bernard P. Binks Prof. Dr.

Surfactant and Colloid Group, Department of Chemistry, University of Hull, Hull, HU6 7RX (UK)

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Howard A. Stone Prof. Dr.

Howard A. Stone Prof. Dr.

School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138 (USA)

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Eugenia Kumacheva Prof. Dr.

Eugenia Kumacheva Prof. Dr.

Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto M5S 3H6, Ontario (Canada), Fax: (+1) 416-978-3576

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First published: 01 July 2009
Citations: 1

Abstract

Chemisch vermittelt werden bei dem von E. Kumacheva et al. in der Zuschrift auf S. 5404 ff. vorgestellten Mikrofluidikansatz partikelbedeckte Bläschen erzeugt. Dabei wird das schnelle und steuerbare Auflösen von CO2-Bläschen in einer Dispersion carboxylierter Partikel genutzt. Die lokale Erhöhung des pH-Werts des Mediums in der Nähe der Bläschen bewirkt eine Änderung der Oberflächenenergie der Partikel und ihre Abscheidung an der Gas-flüssig-Grenzfläche.

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