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| <div class="col-md-4"> | | <div class="col-md-4"> |
| <div class="page-title-desc"> | | <div class="page-title-desc"> |
− | <h2 style="color:purple" ><br> <br> <br> <br> Results</h2> | + | <h2 style="color:purple" ><br> <br> <br> <br> Results</h2> |
| </div> | | </div> |
| </section> | | </section> |
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| <div class="post-content"><p style="font-size:17px;" align="justify"> | | <div class="post-content"><p style="font-size:17px;" align="justify"> |
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| <p style="font-size:17px;" align="justify"> | | <p style="font-size:17px;" align="justify"> |
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| </br> | | </br> |
| <p style="font-size:18px" align="justify"> | | <p style="font-size:18px" align="justify"> |
− | <h7 style="color:purple"><b>Amplification in grapevine extract : </b></h7> | + | <h7 style="color:purple"><b>Amplification in grapevine extract : </b></h7> |
| We wanted to know if the RPA would be hindered by the presence of plant coumpounds extracted along with the DNA (in particular, phenols and polysaccharides are known to act as PCR inhibitors<a href="#section8"><sup>8</sup></a>). Using our microneedle method, we extracted the DNA of an uninfected grapevine leaf. We then carried out two experiments : | | We wanted to know if the RPA would be hindered by the presence of plant coumpounds extracted along with the DNA (in particular, phenols and polysaccharides are known to act as PCR inhibitors<a href="#section8"><sup>8</sup></a>). Using our microneedle method, we extracted the DNA of an uninfected grapevine leaf. We then carried out two experiments : |
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− | <ul style="font-size:18px" > | + | <ul style="font-size:18px" > |
| <li> We tested that our RPA worked for endogenous control in plant extract</li> | | <li> We tested that our RPA worked for endogenous control in plant extract</li> |
− | <li> We performed a limit of detection by spiking different concentrations of our synthetic FD DNA into the microneedle extract (MNE) </li> | + | <li> We performed a limit of detection by spiking different concentrations of our synthetic FD DNA into the microneedle extract (MNE) </li> |
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| </ul> | | </ul> |
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| <p style="font-size:17px;" align="justify"> | | <p style="font-size:17px;" align="justify"> |
| <br/><h7 style="color:purple"><b>Toehold assembly :</b></h7> | | <br/><h7 style="color:purple"><b>Toehold assembly :</b></h7> |
− | <br/>Here we take BN 2.1 (Bois Noir 2<sup>nd</sup> Version, N°1) toehold as an example, our desired length is 961 bps which is approved by our Electrophoresis gel: | + | <br/>Here we take BN 2.1 (Bois Noir 2<sup>nd</sup> Version, N°1) toehold as an example, our desired length is 961 bps which is approved by our Electrophoresis gel: |
| <br/> | | <br/> |
| </p> | | </p> |
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| But in the real case, we will use dsDNA as trigger, thus it is essential to compare their expression rates: | | But in the real case, we will use dsDNA as trigger, thus it is essential to compare their expression rates: |
| </p> | | </p> |
− | <img src="https://static.igem.org/mediawiki/2019/3/33/T--EPFL--Result_toehold_1.png" > | + | <img src="https://static.igem.org/mediawiki/2019/d/d9/T--EPFL--Detection_toehold_result_1.png" > |
| <p style="font-size:17px;" align="justify"> | | <p style="font-size:17px;" align="justify"> |
| The error bar of the expression rate overlaps, no significant difference is detected.<br/><br/> | | The error bar of the expression rate overlaps, no significant difference is detected.<br/><br/> |
| In order to test the limit of detection of our toehold, we've run a test for toehold expression in different concentration of trigger DNA, by theory in the detectable range the difference should be bigger when the concentration of trigger increases: | | In order to test the limit of detection of our toehold, we've run a test for toehold expression in different concentration of trigger DNA, by theory in the detectable range the difference should be bigger when the concentration of trigger increases: |
| </p> | | </p> |
− | <img src="https://static.igem.org/mediawiki/2019/c/ce/T--EPFL--Result_toehold_2.png" > | + | <img src="https://static.igem.org/mediawiki/2019/f/f8/T--EPFL--Detection_toehold_result_2.png" > |
| <p style="font-size:17px;" align="justify"> | | <p style="font-size:17px;" align="justify"> |
| There is a detectable difference from 100nM, and it grows when the concentration goes up, which suits our theory. | | There is a detectable difference from 100nM, and it grows when the concentration goes up, which suits our theory. |
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| <center> | | <center> |
| <img src="https://static.igem.org/mediawiki/2019/7/75/T--EPFL--resultsOnePot5.png" > | | <img src="https://static.igem.org/mediawiki/2019/7/75/T--EPFL--resultsOnePot5.png" > |
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| </center> | | </center> |
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| </div> | | </div> |