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| + | #REDIRECT [[Team:ZJU-China/Project/TheGhostKit/GhostSensor#Detect_thrombin_using_.CE.B2-lactamase_testing_strip]] |
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| - | == Ghost Sensor: Perspectives ==
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| - | Our ghost sensor platform can not only be used to detect proteins, it can also be used to specifically clear proteins in solution and achieve long-term storage of proteins.
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| - | === Magic strip ===
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| - | For the second set of inner-membrane scaffolds, two parts of β-lactamase were fused to the periplasmic ends. When 19-mer and 25-mer biotin-modified aptamers are added to the solution and thrombin is present, aptamers act like a bridge linking streptavidin-fused membrane scaffolds and thrombin. In this way, two molecules of membrane scaffolds are pulled together and the two residuals of β-lactamase will meet each other again to become an integrity part with enzymatic activity. This activity can be detected by commercial β-lactamase testing strips, with a total preparation time of about 10 min.
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| - | [[File:P30928-104814.jpg|600px]]
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| - | β-lactamase testing strip. Left shows β-lactamase positive, right shows negative.
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| - | === Ghost storage ===
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| - | In our team’s safety section, we tried to construct CaCO<sub>3</sub> bacterial shell to elongate ''E.coli'' storage time. This technique can also be applied to ghost sensor platform. When targeted proteins are precipitated from the solution with bacterial ghost, we build a shell around our ''E.coli'' to completely seal the tunnels. In this way, proteins are insulated from harsh outside environment and kept relatively safe bathing the buffer system inside the shell. We hope that this technique could tackle the problem that proteins cannot be long-term stored in room temperature due to proteinase in the environment.
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| - | <div style="float:left;">Previous:
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| - | <a href="./Results">Ghost Sensor: Results</a>
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| - | <div style="float:right;">Next:
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| - | <a href="../ElvesCooperation/Background">Elves' Cooperation: Background</a>
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