Joël Theytaz

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Related publications (5)

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

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

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

Biochip with E. coli bacteria for detection of arsenic in drinking water

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

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. H ...

Elsevier2009

Sequential build-up of hydrogel environments around single cells

Philippe Renaud, Joël Theytaz, Thomas Michael Braschler, Anja Kunze, Grazia Loche, Ana Valero, Ludovica Colella

Controlling alginate gel formation by diffusion of Ca ions through a filter barrier, a layer-by-layer deposition technique with resolution on the size scale of a single cell is presented. It gives the possibility of exposing cells under biocompatible condi ...

2009

A virtual valve for smooth contamination-free flow switching

Philippe Renaud, Mario Schlund, Harald Van Lintel, Nicolas Demierre, Joël Theytaz, Raphaël Tornay, Thomas Michael Braschler, Anja Kunze, Grazia Loche

We present a channel geometry that allows for clean switching between different inlets of a microchip without any contamination of the inlets or the downstream flow. We drive this virtual valve with a pneumatic pressure setup that minimizes disturbance of ...

2007

A simple pneumatic setup for driving microfluidics

Philippe Renaud, Harald Van Lintel, Nicolas Demierre, Joël Theytaz, Lynda Metref, Thomas Michael Braschler

2007

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