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Fast immobilization of probe beads by dielectrophoresis-controlled adhesion in a versatile microfluidic platform for affinity assay

Related publications (45)

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Analysis of genetic and functional variability in populations of living cells requires experimental techniques capable of monitoring cellular processes such as cell signaling of many single cells in parallel while offering the possibility to sort interesti ...

Royal Society of Chemistry2011

Separation and Focusing of Magnetic Beads for Agglutination Tests

Rana Afshar Ghasemlouy

Functional magnetic micro- and nanoparticles are used in bioanalytical applications as solid carriers for capture, transport and detection of biomolecules or magnetically labeled cells. Colloidal suspensions of such particles provide a large specific surfa ...

EPFL2011

A simple assay for the detection of fluoride in water by fluorescence spectroscopy was developed. The assay is based on commercially available reagents and allows sensing of fluoride in the low millimolar concentration range with high selectivity over othe ...

2011

Imaging based optofluidic interferometer on a chip

Demetri Psaltis, Wuzhou Song

We introduce for the first time an integrated optofluidic interferometer on a PDMS microfluidic chip. By imaging the local interference patterns inside the chip, both of the fluid pressure and flow rate can be measured. (C) 2009 Optical Society of America ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2010

Trace-Level Detection of Atrazine Using Immuno-Chemiluminescence: Dipstick and Automated Flow Injection Analyses Formats

Ravindranathan Thampi

A sensitive chemiluminescence (CL)-based immunoassay technique based on both dipstick and flow injection analytical formats is reported for the detection of atrazine. In the dipstick-based immunoassay technique, antibody (anti-atrazine) was first immobiliz ...

2010

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We use magnetic microbeads, which are magnetically self-assembled in chains in a microfluidic chip, as reaction substrates to implement two different sandwich immunoassay protocols for the detection of mouse monoclonal target antibodies. The magnetic chain ...

Springer-Verlag2009

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We propose an original concept for a sandwich immunoassay that is completely performed on-chip using streptavidin-coated beads as substrate. The latter are electrostatically self-assembled on aminosilane micropatterns at the bottom of a microfluidic channe ...

2009

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2009

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This paper describes a simple system for the actuation of a biological fluid through micro-channels with a thermoactivated polymer actuator. This system is of interest for the development of single-use diagnostic test-strips since the actuation of the samp ...

2009

Manipulation of magnetic microparticles in liquid phases for on-chip biomedical analysis methods

Ulrike Lehmann

Magnetic microparticles and their application in bioanalytical microfluidic systems have been steadily gaining interest in recent years. This progress is fueled by the comparatively large and long range magnetic forces that can be obtained independently of ...

EPFL2008