Team:TU Eindhoven/Modeling/Bacterial Cell Counter

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                   <p>When photos of the microfluidics results are taken, the droplets and the cells in the droplets have to be counted. In order to have reliable results this has to be done on a large scale. To make it possible to analyses large numbers of photos a computer program has been made to do the counting. To give a better visualization of the process, a step by step analysis of an image is given below.</p>
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<h4>Bibliography</h4>
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<p>The modeling group focused on the microfluidics. With microfluidics the cells are separated into a single droplet. This process however is not very accurate. Sometimes the droplets do not contain the desired number of cells. This can be modelled using a Poisson distribution. In this model you can define an average number of cells per droplet, lambda. Lambda was varied to choose a suitable average number of cells per droplet for our microfluidic device.</p>
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<p style="font-size:18px;color:#CCCCCC;">Figure 3.</p>
<p style="font-size:18px;color:#CCCCCC;">Figure 3.</p>
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<h4>Bibliography</h4>
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Revision as of 10:07, 11 October 2014

iGEM Team TU Eindhoven 2014

iGEM Team TU Eindhoven 2014

Bacterial Cell Counter

When photos of the microfluidics results are taken, the droplets and the cells in the droplets have to be counted. In order to have reliable results this has to be done on a large scale. To make it possible to analyses large numbers of photos a computer program has been made to do the counting. To give a better visualization of the process, a step by step analysis of an image is given below.

Figure 1. Poisson distribution for multiple lambdas.

This allows for the determination of the ratios between one cell/zero cells and one cell/ two or more cells. These both have to be as high as possible for a specific lambda.

Figure 2. Ratio between one cell/ zero cells or more cells

Based on these results a lambda of 0.5 was chosen for the microfluidic device. The Poisson distribution for different number of cells becomes then as follows.

Figure 3.

Bibliography

iGEM Team TU Eindhoven 2014