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  Polyurea microcapsules in microfluidics: Surfactant control of soft membranes

Polenz, I., Weitz, D. A., & Baret, J.-C. (2015). Polyurea microcapsules in microfluidics: Surfactant control of soft membranes. Langmuir, 31(3), 1127-1134. doi:10.1021/la5040189.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-399B-7 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-E328-B
Genre: Journal Article

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http://pubs.acs.org/doi/full/10.1021/la5040189 (Publisher version)
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 Creators:
Polenz, Ingmar1, Author              
Weitz, D. A., Author
Baret, Jean-Christophe1, Author              
Affiliations:
1Max Planck Research Group Droplets, Membranes and Interfaces, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063290              

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 Abstract: Interfacial polymerization techniques offer a versatile route for microcapsule synthesis. We designed a microfluidic process to synthesize monodisperse polyurea microcapsules (PUMCs); the microcapsules are formed by an interfacial polymerization of isocyanate dissolved in the oil and an amine dissolved in water. We measure the mechanical properties of the capsule as well as transport properties through the membrane using two microfluidic methods. We show that the elasticity and the permeability of the shell are controlled by surfactant additives, added during the synthesis. The control of the nanostructure of the shell by surfactants provides new means to design encapsulation systems with tailored mechanical and physicochemical properties.

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Language(s): eng - English
 Dates: 2014-12-222015-01-27
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: BibTex Citekey: polenz_langmuir_2015
DOI: 10.1021/la5040189
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Title: Langmuir
Source Genre: Journal
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Pages: - Volume / Issue: 31 (3) Sequence Number: - Start / End Page: 1127 - 1134 Identifier: ISSN: 0743-7463