Team:ETH Zurich

From 2011.igem.org

Revision as of 01:26, 29 October 2011 by Sabineoesterle (Talk | contribs)

Can you feel the smoke tonight?
 

Contents

SmoColi - Abstract

We create a bacterio-quantifier of smoke. SmoColi cells are engineered to sense toxic substances found in cigarette smoke (for example acetaldehyde or xylene). They are immobilized in a microfluidic channel, in which a concentration gradient of the toxic substance is established. The sensor is linked to a band-pass filter that leads to input-concentration-dependent GFP expression. Continuous increase of the input concentration and its detection, therefore, establishes a moving fluorescent band in the channel. Finally, if the input concentration exceeds a certain threshold, cells produce RFP and the device turns red. Due to its modularity, our SmoColi system can be used in fact as a quantifier for a range of substances, as long as the sensor is adapted. To show that our system can be activated by different signals, as a proof of principle, we modified the circuit so that it can be induced by arabinose.

Back to iGEM Our Sponsors
ETHZ-BASF.png ETH Zurich Logo.png ETHZ-Lonza.png ETHZ-Merck Serono.png
ETHZ-Novartis.png ETHZ-Roche.png ETHZ-Syngenta.png DSM MasterLogo.png