Publication

A micropillar array for sample concentration via in-plane evaporation

Publications associées (68)

Biochip with E-Coli bacteria for detection of arsenic in drinking water

Philippe Renaud, Thomas Michael Braschler, Harald Van Lintel, Jan Roelof van der Meer, Joël Theytaz

Arsenic and other pollutants are often present in trace amounts in drinking water in a number of countries. In aqueous solutions the sensitivity of arsenic-responsive bacterial bioreporters is far better than the performance of chemical field test kits. Ho ...

2009

Time-resolved lanthanide luminescence for lab-on-a-chip detection of biomarkers on cancerous tissues

Martinus Gijs, Jean-Claude Bünzli, Caroline Vandevyver, Venkataragavalu Sivagnanam, Bo Song, Hans-Anton Lehr

PDMS-based microfluidic devices combined with lanthanide-based immunocomplexes have been successfully tested for the multiplex detection of biomarkers on cancerous tissues, revealing an enhanced sensitivity compared to classical organic dyes. ...

2009

Micro-Air-Bag Actuated Tunable Optofluidic Elements

Demetri Psaltis, Andreas Vasdekis, Wuzhou Song, Jae-Woo Choi

We introduce for the first time a tuning mechanism for optofluidic devices by embedding a Micro-Air-Bag (MAB) actuator inside a microfluidic chip. Multiple tunable optical elements controlled through the pressure of compressed air were demonstrated. (C)200 ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009

Bacteria manipulation with optically controlled fluidic valves

Demetri Psaltis, Jae-Woo Choi, James Adleman

Optically controlled fluidic valves are utilized to concentrate and detect bacteria, selectively switch the pathway of the bacteria, and demonstrate bidirectional fluidic flow within a microfluidic channel. (C) 2009 Optical Society of America ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2009

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

Optical trapping and micromanipulation of biological objects in microfluidic channels

Marinela Gjoni Boillat

The main aim of this project was to develop novel concepts for miniaturization of bioanalytical techniques for investigating biomolecular interactions. We used optical tweezers to selectively address individual biological objects in microfluidic channels. ...

EPFL2007

Production of structures for microfluidics using polymer imprint techniques

Luis Guillermo Villanueva Torrijo

We present a technology for the fabrication of three dimensional microfluidic channels in optically transparent substrates consisting of polymers with different properties. The microstructures are fabricated using polymer replication techniques with a view ...

2005

Development of a microfluidic system as basis for electrochromatography

In analytical separation technology there is a great demand for faster and more effective separation process. Miniaturization is a suitable technique for satisfying this demand because the reduction of the separation systems in size would give increased se ...

EPFL2005

Magnetically actuated micropumps

Christophe Yamahata

"Lab-On-a-Chip" (LOC) systems are intended to transpose complete laboratory instrumentations on the few square centimetres of a single microfluidic chip. With such devices the objective is to minimize the time and cost associated with routine biological an ...

EPFL2005

Manipulation of Self-Assembled Structures of Magnetic Beads for Microfluidic Mixing and Assaying

Martinus Gijs, Amar Rida

We present an original concept of manipulation of magnetic microbeads in a microchannel. It is based on the dynamic motion of a self-assembled structure of ferrimagnetic beads that are retained within a microfluidic flow using a local alternating magnetic ...

2004

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