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Team:UPO-Sevilla/Modeling
From 2010.igem.org
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<h2>Chemoattractant Diffusion</h2> | <h2>Chemoattractant Diffusion</h2> | ||
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The basic equations for the diffusion of the chemoattractant in the medium are the Fick laws of diffusion, which govern the variation of the concentration of a substance within a medium. | The basic equations for the diffusion of the chemoattractant in the medium are the Fick laws of diffusion, which govern the variation of the concentration of a substance within a medium. | ||
| + | </p> | ||
| + | <p> | ||
| + | The flux (that is, the amount of substance that flows through a given surface per unit of time $\frac{mol}{m^2 s}$) is given by: | ||
| + | </p> | ||
| + | <br> | ||
| - | + | <img class="circuit" src="https://static.igem.org/mediawiki/2010/4/42/UPO-Model-Eq1.png" alt="First Fick Law"/> | |
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<br> | <br> | ||
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where $\phi$ is the concentration ($\frac{mol}{m^{3}}$) in a given point. $D$ is a constant called the diffusion coefficient, and that depends on the medium . | where $\phi$ is the concentration ($\frac{mol}{m^{3}}$) in a given point. $D$ is a constant called the diffusion coefficient, and that depends on the medium . | ||
| - | + | </p> | |
| + | <p> | ||
Basically, the equation states that the is directed towards places with lower concentration (thus the minus sign). If the concentration is constant in the space $ \Delta \phi = \mathbf{0}$ there is no flux. | Basically, the equation states that the is directed towards places with lower concentration (thus the minus sign). If the concentration is constant in the space $ \Delta \phi = \mathbf{0}$ there is no flux. | ||
| - | + | </p> | |
<h2> Bacteria motion</h2> | <h2> Bacteria motion</h2> | ||
Revision as of 10:18, 5 October 2010
Models
The members of the dry lab are simulating the different components of the full system. Three main components can be identified:- The difussion of the chemoattractant through the medium.
- The motion of the bacterias through the medium due to the gradient on the chemoattractant concentration.
- The chemoattractant generation within the bacteria.
Chemoattractant Diffusion
The basic equations for the diffusion of the chemoattractant in the medium are the Fick laws of diffusion, which govern the variation of the concentration of a substance within a medium.
The flux (that is, the amount of substance that flows through a given surface per unit of time $\frac{mol}{m^2 s}$) is given by:
where $\phi$ is the concentration ($\frac{mol}{m^{3}}$) in a given point. $D$ is a constant called the diffusion coefficient, and that depends on the medium .
Basically, the equation states that the is directed towards places with lower concentration (thus the minus sign). If the concentration is constant in the space $ \Delta \phi = \mathbf{0}$ there is no flux.
Bacteria motion
Chemical reactions
Modeling Tools
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