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Langmuir

Title:		Microfluidic fabrication of stable nanoparticle-shelled bubbles
Author(s):		Lee MH; Prasad V; Lee D;
Address:		"Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA"
Journal Title:		Langmuir
Year:		2010
Volume:		26
Issue:		4
Page Number:		2227 - 2230
DOI:		10.1021/la904425v
ISSN/ISBN:		1520-5827 (Electronic) 0743-7463 (Linking)
Abstract:		"We introduce a microfluidic approach to generating monodisperse, stable nanoparticle-shelled bubbles using air-in-oil-in-water (A/O/W) compound bubbles as templates. The oil phase of the A/O/W compound bubbles comprises a volatile organic solvent and a hydrophobic silica nanoparticle. Upon evaporation of the organic solvent, the nanoparticles in the oil layer form a stiff shell at the air-water interface, which drastically enhances the stability of the bubbles against dissolution and coarsening. On the basis of this approach, we demonstrate that it is also possible to generate functional bubbles stabilized by composite shells that are composed of mixtures of hydrophobic materials and nanoparticles with unique properties"
Keywords:		Air Hydrophobic and Hydrophilic Interactions Materials Testing Microfluidic Analytical Techniques/*methods Nanoparticles/*chemistry Oils/chemistry Particle Size Surface Properties Water/chemistry;
Notes:		"MedlineLee, Myung Han Prasad, Varesh Lee, Daeyeon eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. 2009/12/31 Langmuir. 2010 Feb 16; 26(4):2227-30. doi: 10.1021/la904425v"