Dripping, Jetting, Drops and Wetting: the Magic of Microfluidics
@article{Utada2007DrippingJD, title={Dripping, Jetting, Drops and Wetting: the Magic of Microfluidics}, author={Andrew S. Utada and Liang‐Yin Chu and Alberto Fern{\'a}ndez-Nieves and Darren R. Link and Christian Holtze and David A. Weitz}, journal={Mrs Bulletin}, year={2007}, volume={32}, pages={702-708} }
The following article is based on the Symposium X presentation given by David A. Weitz (Harvard University) on April 11, 2007, at the Materials Research Society Spring Meeting in San Francisco. The article describes how simple microfluidic devices can be used to control fluid flow and produce a variety of new materials. Based on the concepts of coaxial flow and hydrodynamically focused flow, used alone or in various combinations, the devices can produce precisely controlled double emulsions…
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References
SHOWING 1-10 OF 24 REFERENCES
Monodisperse Double Emulsions Generated from a Microcapillary Device
- EngineeringScience
- 2005
It is shown that the droplet size can be quantitatively predicted from the flow profiles of the fluids, which makes this a flexible and promising technique.
Formation of dispersions using “flow focusing” in microchannels
- Physics, Engineering
- 2003
A flow-focusing geometry is integrated into a microfluidic device and used to study drop formation in liquid–liquid systems. A phase diagram illustrating the drop size as a function of flow rates and…
Monodisperse Emulsion Generation via Drop Break Off in a Coflowing Stream
- Physics
- 2000
We describe an experimental technique for the production of highly monodisperse emulsions (with minimum achievable polydispersities <3%). The phase to be dispersed is introduced into a coflowing,…
Perfectly monodisperse microbubbling by capillary flow focusing.
- PhysicsPhysical review letters
- 2001
The physics of the phenomenon is described and closed expressions for the bubble diameter are obtained as a function of the liquid and gas properties, geometry, and flow parameters, from a large set of experimental results.
Microfluidics: Fluid physics at the nanoliter scale
- Physics
- 2005
Microfabricated integrated circuits revolutionized computation by vastly reducing the space, labor, and time required for calculations. Microfluidic systems hold similar promise for the large-scale…
Generation of polymerosomes from double-emulsions.
- Materials ScienceLangmuir : the ACS journal of surfaces and colloids
- 2005
A new method for generating polymer vesicles from double emulsions from the breakup of concentric fluid streams, which directs the self-assembly of the dissolved diblock copolymers into vesicular structures.
Dripping-jetting transitions in a dripping faucet.
- PhysicsPhysical review letters
- 2004
New experiments and simulations show that high viscosity (micro) liquids, e.g., syrup, transition directly from simple dripping to jetting as Q increases, and values of Q for transition from dripping to jets are estimated from scaling arguments and shown to accord well with simulations.
Dewetting instability during the formation of polymersomes from block-copolymer-stabilized double emulsions.
- Materials ScienceLangmuir : the ACS journal of surfaces and colloids
- 2006
It is described how the presence of excess polymer can induce a transition from complete wetting to partial wetting of the middle phase, resulting in polymer shells with inhomogeneous thicknesses.
Toward a Tetravalent Chemistry of Colloids
- Materials Science
- 2002
We propose coating spherical particles or droplets with anisotropic nanosized objects to allow micron-scale colloids to link or functionalize with a 4-fold valence, similar to the sp3 hybridized…
Polymersomes: tough vesicles made from diblock copolymers.
- Materials ScienceScience
- 1999
The results suggest a new class of synthetic thin-shelled capsules based on block copolymer chemistry, and both the membrane bending and area expansion moduli of electroformed polymersomes (polymer-based liposomes) fell within the range of lipid membrane measurements.