IGEM:IMPERIAL/2006/project/Oscillator/project browser/Full System/TestingValidation: Difference between revisions

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::*Stable oscillations for greater than 10 cycles
::*Stable oscillations for greater than 10 cycles
::*High signal to noise ratio
::*High signal to noise ratio
::*Controllable frequency and amplitude
::*Controllable amplitude and frequency
::*(Our system is based on the quorum sensing/quenching system so connectivity is an inherent part of our design. However, more research is to be done to fulfil this specification).
::*(Our system is based on the quorum sensing/quenching system so connectivity is an inherent part of our design. However, more research is to be done to fulfil this specification).
 
*The testing will be done in a [[IGEM:IMPERIAL/2006/project/Oscillator/project browser/Full System/TestingValidation/chemostat|chemostat]]. This equipment works to:
==Enviroment==
::*Keep the cells in the exponential growth phase
 
::*Keep cell populations constant, ensuring stable oscillations and a high signal to noise ratio
This system will run in a Chemostat. This pice of equipment will keep the cell populations constant and thus keep the pareameters constant throught the course of the experiment. [[IGEM:IMPERIAL/2006/project/Oscillator/project browser/Full System/TestingValidation/chemostat|chemostat page]]
::*Vary amplitude and frequency of oscillations by controlling wash-out by the chemostat


==Protocol==
==Protocol==


*A formal protocol has not been written.
*A formal protocol has not been written.
*A suggested method was to aliquot the extracellular medium within the chemostat at certain time points and then measure the [AHL] using the T9002/J37016 assay
*Methods for testing under consideration are:
::*To aliquot the extracellular medium within the chemostat at certain time points and then measure the [AHL] using the T9002/J37016 assay.
::*Use a [http://openwetware.org/wiki/IGEM:IMPERIAL/2006/project/Bio_elec_interface biosensor] to measure oscillating output directly (in this case we would be measuring change in pH in the extracellular medium).
::*Use High Performance Liquid Chromatography (more research is required).


==Results==
==Results==
*The predator construct has to be built.
 
*The prey construct has been built but still needs to be characterized
*The predator construct still needs to be built

Revision as of 03:03, 29 October 2006

Super Parts Not applicable
Actual Part
Sub Parts Prey Construct Predator Construct


Motivations

  • To see whether oscillations, which match are specifications, are produced. We will have fulfilled our specifications if the oscillations have the following properties:
  • Stable oscillations for greater than 10 cycles
  • High signal to noise ratio
  • Controllable amplitude and frequency
  • (Our system is based on the quorum sensing/quenching system so connectivity is an inherent part of our design. However, more research is to be done to fulfil this specification).
  • The testing will be done in a chemostat. This equipment works to:
  • Keep the cells in the exponential growth phase
  • Keep cell populations constant, ensuring stable oscillations and a high signal to noise ratio
  • Vary amplitude and frequency of oscillations by controlling wash-out by the chemostat

Protocol

  • A formal protocol has not been written.
  • Methods for testing under consideration are:
  • To aliquot the extracellular medium within the chemostat at certain time points and then measure the [AHL] using the T9002/J37016 assay.
  • Use a biosensor to measure oscillating output directly (in this case we would be measuring change in pH in the extracellular medium).
  • Use High Performance Liquid Chromatography (more research is required).

Results

  • The prey construct has been built but still needs to be characterized
  • The predator construct still needs to be built