Team:WLC-Milwaukee/Description

Description

Step two

The solution is syringe filtered through a 0.45 micrometer filter to trap bacteria bound to phage tails and allow any unbound phage tail through. This prevents false positives by ridding the solution of excess phage tail for step three.

Step three

Substrate is added to the filter which will be cleaved by the enzyme. Color change occurs if E. coli is present. Note, each E. coli cell can bind hundreds of phage tail and each tail may bind several enzyme, which allows for high sensitivity.

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