Team:TU-Delft/BandAid

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Band Aid

The Band Aid Modeling is related to the final application of our project. Specifically, we are going to use a band aid in which E.coli will be added. By locating the band aid on the wound, the S.aureus should be detected and killed.

As, it is already known, S.aureus is a pathogenic bacterium that utilises quorum sensing (QS), a cell-to-cell signalling mechanism, to enhance its ability to cause disease[1]. The communication is succeeded through small peptides known as AIPs. We engineered the receiver part of S.aureus to E.coli in order to be able for the last to detect AIPs produced by S.aureus.

The main purpose in the band aid modeling is to answer questions like these mentioned underneath:

1. Is it possible the AIPs to pass through the membrane in order to be feasible for the E.coli to detect MRSA?
2. If the MRSA is detected, is the amount of the produced peptide enough to kill it ?
3. What is the maximum diameter of the pores in the membrane so as only the AIPs and the peptides to pass through?
4. How many pores are necessary in order to be possible for the peptide to be released?

                                                                        Figure 1: Band Aid Application

Differential Equations

Our model consists of two Populations:

1. Sender: The S.aureus Population
2. Receiver: The E.coli Population

The differential equations related to each population are represented below.

Sender: S.aureus Population

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                                                                        Figure 2:Sender

Receiver: E.coli Population

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