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Showing 1 to 12 of 114 entries
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Optimization and evaluation of radially interconnected versus bifurcating flow distributors using computational fluid dynamics modelling.

Journal of chromatography. A

Davydova E, Deridder S, Eeltink S, Desmet G, Schoenmakers PJ.
PMID: 25591402
J Chromatogr A. 2015 Feb 06;1380:88-95. doi: 10.1016/j.chroma.2014.12.063. Epub 2014 Dec 30.

Two main groups of flow distributors, viz. "bifurcating distributors" (BF) and "radially interconnected distributors" (RI), as well as some hybrid distributors were investigated. Computational fluid dynamics was used to evaluate the performance of the distributors and to establish the...

Experimental investigation and computational modeling of hydrodynamics in bifurcating microchannels.

Biomedical microdevices

Janakiraman V, Sastry S, Kadambi JR, Baskaran H.
PMID: 18175219
Biomed Microdevices. 2008 Jun;10(3):355-65. doi: 10.1007/s10544-007-9143-6.

Methods involving microfluidics have been used in several chemical, biological and medical applications. In particular, a network of bifurcating microchannels can be used to distribute flow in a large space. In this work, we carried out experiments to determine...

Micromixer utilizing electrokinetic instability-induced shedding effect.

Electrophoresis

Tai CH, Yang RJ, Huang MZ, Liu CW, Tsai CH, Fu LM.
PMID: 17109376
Electrophoresis. 2006 Dec;27(24):4982-90. doi: 10.1002/elps.200500900.

This paper presents a T-shaped micromixer featuring 45 degrees parallelogram barriers (PBs) within the mixing channel. The presented device obtains a rapid mixing of two sample fluids with conductivity ratio of 10:1 (sample concentration:running buffer concentration) by means of...

Electrospray ionization from a gap with adjustable width.

Rapid communications in mass spectrometry : RCM

Ek P, Sjödahl J, Roeraade J.
PMID: 17016803
Rapid Commun Mass Spectrom. 2006;20(21):3176-82. doi: 10.1002/rcm.2710.

In this paper, we present a new concept for electrospray ionization mass spectrometry, where the sample is applied in a gap which is formed between the edges of two triangular-shaped tips. The size of the spray orifice can be...

Returning to diagnostic basics.

BioTechniques

Webb SA.
PMID: 20629269
Biotechniques. 2010 Jul;49(1):491-3. doi: 10.2144/000113461.

No abstract available.

Digital microfluidic operations on micro-electrode dot array architecture.

IET nanobiotechnology

Wang G, Teng D, Fan SK.
PMID: 22149873
IET Nanobiotechnol. 2011 Dec;5(4):152-60. doi: 10.1049/iet-nbt.2011.0018.

As digital microfluidics-based biochips find more applications, their complexity is expected to increase significantly owing to the trend of multiple and concurrent assays on the chip. There is a pressing need to deliver a top-down design methodology that the...

Fusion and sorting of two parallel trains of droplets using a railroad-like channel network and guiding tracks.

Lab on a chip

Xu L, Lee H, Panchapakesan R, Oh KW.
PMID: 22814673
Lab Chip. 2012 Oct 21;12(20):3936-42. doi: 10.1039/c2lc40456g.

We propose a robust droplet fusion and sorting method for two parallel trains of droplets that is relatively insensitive to frequency and phase mismatch. Conventional methods of droplet fusion require an extremely precise control of aqueous/oil flows for perfect...

Microfluidic automation using elastomeric valves and droplets: reducing reliance on external controllers.

Small (Weinheim an der Bergstrasse, Germany)

Kim SJ, Lai D, Park JY, Yokokawa R, Takayama S.
PMID: 22761019
Small. 2012 Oct 08;8(19):2925-34. doi: 10.1002/smll.201200456. Epub 2012 Jul 03.

This paper gives an overview of elastomeric valve- and droplet-based microfluidic systems designed to minimize the need of external pressure to control fluid flow. This Concept article introduces the working principle of representative components in these devices along with...

Micropillar sequence designs for fundamental inertial flow transformations.

Lab on a chip

Stoecklein D, Wu CY, Owsley K, Xie Y, Di Carlo D, Ganapathysubramanian B.
PMID: 25268387
Lab Chip. 2014 Nov 07;14(21):4197-204. doi: 10.1039/c4lc00653d.

The ability to control the shape of a flow in a passive microfluidic device enables potential applications in chemical reaction control, particle separation, and complex material fabrication. Recent work has demonstrated the concept of sculpting fluid streams in a...

Integrated capture, transport, and magneto-mechanical resonant sensing of superparamagnetic microbeads using magnetic domain walls.

Lab on a chip

Rapoport E, Montana D, Beach GS.
PMID: 22955796
Lab Chip. 2012 Nov 07;12(21):4433-40. doi: 10.1039/c2lc40715a.

An integrated platform for the capture, transport, and detection of individual superparamagnetic microbeads is described for lab-on-a-chip biomedical applications. Magnetic domain walls in magnetic tracks have previously been shown to be capable of capturing and transporting individual beads through...

Numerical and experimental characterization of a novel modular passive micromixer.

Biomedical microdevices

Pennella F, Rossi M, Ripandelli S, Rasponi M, Mastrangelo F, Deriu MA, Ridolfi L, Kähler CJ, Morbiducci U.
PMID: 22711456
Biomed Microdevices. 2012 Oct;14(5):849-62. doi: 10.1007/s10544-012-9665-4.

This paper reports a new low-cost passive microfluidic mixer design, based on a replication of identical mixing units composed of microchannels with variable curvature (clothoid) geometry. The micromixer presents a compact and modular architecture that can be easily fabricated...

Measuring microchannel electroosmotic mobility and zeta potential by the current monitoring method.

Methods in molecular biology (Clifton, N.J.)

Shao C, Devoe DL.
PMID: 23329435
Methods Mol Biol. 2013;949:55-63. doi: 10.1007/978-1-62703-134-9_4.

Electroosmotic flow (EOF) is an electrokinetic flow control technique widely used in microfluidic systems for applications including direct electrokinetic pumping, hydrodynamic pressure generation, and counterflow for microfluidic separations. During EOF, an electric field is applied along the length of...

Showing 1 to 12 of 114 entries