NDLI: Osmolarity-controlled swelling behaviors of dual-cored double-emulsion drops

Content Provider	Springer Nature Link
Author	Hou, Likai Ren, Yukun Jia, Yankai Chen, Xiaoming Deng, Xiaokang Tang, Zheng Hu, Qingming Tao, Ye Jiang, Hongyuan
Copyright Year	2017
Abstract	We report osmolarity-controlled swelling behaviors of dual-cored water-in-oil-in-water (W/O/W) double-emulsion drops, which are caused by the discrepancy of salt concentration of the inner cores and suspending medium. The expanding speed and resultant size can be manipulated independently according to salt concentration. The swelling behaviors result in two kinds of transformation in the emulsion drops. One is coalescence of the two inner aqueous cores, taking place when the cores are of the same salt concentrations and the double-emulsion drops swell to dumbbell-shaped morphology. Another is rupture of one inner core, which happens when the cores are of different salt concentrations and the double-emulsion drops swell to snowman-shaped structures. The conditions for core-coalescence and core-rupture are investigated, respectively. The swelling leading transformation of emulsion drops are of promising application as microreactors and tiny vesicles: The core-coalescence can lead to controlled reaction of two solvents while protecting the reaction form external contamination; the core-rupture may be utilized for targeted release of reagents at specific position.
Starting Page	1
Ending Page	8
Page Count	8
File Format	PDF
ISSN	16134982
Journal	Microfluidics and Nanofluidics
Volume Number	21
Issue Number	4
e-ISSN	16134990
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2017-03-17
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Microfluidics Double emulsion Osmotic pressure Coalescence Rupture Engineering Fluid Dynamics Biomedical Engineering Analytical Chemistry Nanotechnology and Microengineering
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Materials Chemistry Condensed Matter Physics Electronic, Optical and Magnetic Materials

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