Difference between revisions of "Team:NEU China B"

 
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{{NEU_China_B}}
 
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−
project description
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Wine is the most common drink in people's lives. However, during the production of alcohol, lactic acid is often produced, which not only affects the taste of the wine, but also inhibits the viability of the fermenting yeast, significantly reducing the efficiency of alcohol fermentation. Therefore, NEU China B is dedicated to the construction of a lactic acid biosensor that uses E. coli's group-sensing effect to sense lactic acid during alcohol fermentation and monitor it in real time. When the lactic acid content reaches its peak, it will alarm.
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<div class="column full_size" >
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var img1 = new Image();
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<h1> Welcome to iGEM 2018! </h1>
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var img2 = new Image();
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<p>Your team has been approved and you are ready to start the iGEM season! </p>
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−
<h3>Before you start</h3>
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}
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<p> Please read the following pages:</p>
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−
<ul>
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−
<li>  <a href="https://2018.igem.org/Competition">Competition Hub</a> </li>
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−
<li> <a href="https://2018.igem.org/Competition/Deliverables/Wiki">Wiki Requirements page</a></li>
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−
<li> <a href="https://2018.igem.org/Resources/Template_Documentation">Template documentation</a></li>
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</ul>
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</div>
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InterLab study works as a guidance for us to develop the conception including building the major principle, in order to setting a standardization. Reliable and repeatable measurement, which are known as the key factors toward synthetic biology. However, the existence of disparities is inevitable due to multiple reasons like the equipment, raw materials they used during the experiments, and the different methods they process their data. By collecting data from teams, the difference would be narrowed. The 2018 InterLab study aims to provide a trust-worth plate reader-based measurement protocol and flow cyptometry protocol suitable throughout the world.
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Results and observations
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The 2018 InterLab study was separated into 2 parts, plate reader measurement and flow cyptometry measurement. In the InterLab study, we used an Spectra Max M2 as our molecular plate reader device and an BD LSRFortessa as our flow cyptometry device.
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function drawImg(imgWarpper, x, y) {
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The plate reader part includes 3 sets of unit calibration measurements and the cell measurement under the setting in the calibration. The calibration contains an OD600 reference point(fig 1), a particle standard curve(fig 2), and a fluorescein standard curve(fig 3).
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(fig 1)
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−
As we can see, in the first part of calibration, we concluded the rate of OD600 and Absorbance is 4.131.
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  (fig 2.1)
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(fig 2.2)
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−
Originally, the values of both graph should form a straight line in a slope 1:1. But the log scale graph appears to be an upper throw line. This could have been due to a consistent pipetting error. Also, the detector could have been oversaturated, because low concentrations were linear, while at high concentrations it either saturated or fell.
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(fig 3.1)
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+
−
(fig 3.2)
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As shown above, both the two graphs of fluorescein standard curve demonstrated a linear shape at a constant slope of 1:1 .
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In the IGEM’s InterLab measurement package, there are 8 devices: Positive control(BBa_R0040), Negative control(BBa_ R0040), Test 1 (BBa_J364000), Test 2 (BBa_J364001), Test 3 (BBa_J364002), Test 4 (BBa_J364007), Test 5 (BBa_J364008) and Test 6 (BBa_J364009). We transformed and cultured them all in the circumstance of 10 mL LB(Luria Bertani) medium and Chloramphenicol. 2 colonies were picked from each plate and cultured into 5 ml cultures for 16 hours, at 37 ºC using 220 rpm condition. Then we measured their OD600 and fluorescence emission resulting in 2 specific time: 0 h and 6 h (which required light-avoiding culture).
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var imgWarpper2 = {};
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For this experimental groups, we used the same plate reader instrument, a Spectra Max M2 Microplate Reader and sample condition as volume performed at standard protocols.
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−
By analyzing the OD600 absorbance value, we observed a generally suitable trend. According to the theory, the negative control group has no gene to encoding the GFP protein and the metabolic load is the lowest, hence it would have the highest absorbance. When we looked through the data among the different devices ( which are composed of strong RBS and promoter sequence), the Device 3 showed the highest values of absorbance and the lowest fluorescence emission. After processing the data in 0h and 6h, we drew to a conclusion that the expression order of the 6 devices counting in ascending order is TD3, TD6, TD2, TD1, TD5 and TD4. However, the results of TD5 seem to had an opposite tendency between fluorescence emission and absorbance compared to the other groups. And the whole replicates of TD5 showed a consistency in contradict tendency. A possible explanation for this could be that during the preparation of the samples and the growth phases, out of the operational miss could have played a role in the differentiation of the data.
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<div class="column full_size" >
 
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<h3> Styling your wiki </h3>
 
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<p>You may style this page as you like or you can simply leave the style as it is. You can easily keep the styling and edit the content of these default wiki pages with your project information and completely fulfill the requirement to document your project.</p>
 
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<p>While you may not win Best Wiki with this styling, your team is still eligible for all other awards. This default wiki meets the requirements, it improves navigability and ease of use for visitors, and you should not feel it is necessary to style beyond what has been provided.</p>
 
  
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c.addEventListener('click', function (event) {
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var x = event.clientX - c.getBoundingClientRect().left;
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var y = event.clientY - c.getBoundingClientRect().top;
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// console.log(x, y);
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if (contains(imgWarpper1, x, y)) {
 +
console.log("img 1");
 +
window.location.href = 'https://2018.igem.org/Team:NEU_China_B/background';
 +
}
 +
else if (contains(imgWarpper2, x, y)) {
 +
console.log("img 2");
 +
window.location.href = 'https://2018.igem.org/Team:NEU_China_B/Basic_Part';
 +
}
 +
else if (contains(imgWarpper3, x, y)) {
 +
console.log("img3");
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window.location.href = 'https://2018.igem.org/Team:NEU_China_B/Team';
 +
}
 +
else if (contains(imgWarpper4, x, y)) {
 +
console.log("img4");
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window.location.href = 'https://2018.igem.org/Team:NEU_China_B/InterLab';
 +
}
 +
else if (contains(imgWarpper5, x, y)) {
 +
console.log("img5");
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window.location.href = 'https://2018.igem.org/Team:NEU_China_B/Human_Practices';
 +
}
 +
});
 +
c.onmousemove = function (event) {
 +
var x = event.clientX - c.getBoundingClientRect().left;
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var y = event.clientY - c.getBoundingClientRect().top;
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if (contains(imgWarpper1, x, y)) {
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tipsWarpper.x = x;
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tipsWarpper.y = y;
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tipsWarpper.valid = true;
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tipsWarpper.msg = "Background";
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}
 +
else if (contains(imgWarpper2, x, y)) {
 +
console.log("img 2");
 +
tipsWarpper.x = x;
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tipsWarpper.y = y;
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tipsWarpper.valid = true;
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tipsWarpper.msg = "Basic Part";
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}
 +
else if (contains(imgWarpper3, x, y)) {
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console.log("img3");
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tipsWarpper.valid = true;
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tipsWarpper.x = x;
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tipsWarpper.y = y;
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tipsWarpper.msg = "Team";
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}
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else if (contains(imgWarpper4, x, y)) {
 +
console.log("img4");
 +
tipsWarpper.x = x;
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tipsWarpper.y = y;
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tipsWarpper.msg = "InterLab";
 +
tipsWarpper.valid = true;
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}
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else if (contains(imgWarpper5, x, y)) {
 +
console.log("img5");
 +
tipsWarpper.x = x;
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tipsWarpper.y = y;
 +
tipsWarpper.msg = "Human_Practices";
 +
tipsWarpper.valid = true;
 +
}
 +
else {
 +
tipsWarpper.valid = false;
 +
}
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}
 +
</script>
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 +
<hr>
 +
<style>
 +
.abstract{
 +
background-color:#FAF0E6;
 +
};
 +
</style>
 +
<div class="text-center abstract">
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<div class="container">
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<h2>
 +
Abstract
 +
</h2>
 +
<hr>
 +
The role of L-lactate is not always beneficial for the yogurt fermentation due to excessive L-lactate can provide an optimized growth condition for yeast and mold. Therefore, it is important to detect the concentration of L-lactate. Acid-base titration is a common method for it, but this method is complicated and time-consuming. In order to monitor L-lactate quickly and conveniently, we designed a biosensor for detecting L-lactate concentration by using the lldPRD L-lactate operon and QS system in E. coli. One of these parts is able to induce the lldPRD genes expression, LuxS protein, in the presence of L-lactate. LuxS protein catalyzes the SAM cycle and produces a small signaling molecule AI-2 that motivates our second part promoter of LsrA&K to promote GFP expression. The optic fiber is able to detect the GFP signal and convert it into current. Simultaneously, the entire device container will be made by 3D printing.
  
−
<h3> Uploading pictures and files </h3>
 
−
<p> You must upload any pictures and files to the iGEM 2018 server. Remember to keep all your pictures and files within your team's namespace or at least include your team's name in the file name. </p>
 
  
  
−
<p>When you upload, set the "Destination Filename" to <b> T--YourOfficialTeamName--NameOfFile.jpg</b>. (If you don't do this, someone else might upload a different file with the same "Destination Filename", and your file would be erased!)</p>
 
−
 
−
<div class="button_link">
 
−
<a href="https://2018.igem.org/Special:Upload">
 
−
UPLOAD FILES
 
−
</a>
 
 
</div>
 
</div>
 +
<footer id="footer" class="footer section">
 +
<!-- Footer Top -->
 +
<div class="footer-top">
 +
<div class="container">
 +
<div class="row">
  
−
</div>
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</div>
 +
</div>
 +
</div>
 +
<!--/ End Footer Top -->
  
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<div class="column third_size" >
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<!-- Copyright -->
−
<h3> Wiki template information </h3>
+
<div class="copyright">
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<p>We have created these wiki template pages to help you get started and to help you think about how your team will be evaluated. You can find a list of all the pages tied to awards here at the <a href="https://2018.igem.org/Judging/Pages_for_Awards">Pages for awards</a> link. You must edit these pages to be evaluated for medals and awards, but ultimately the design, layout, style and all other elements of your team wiki is up to you!</p>
+
<div class="container">
 +
<div class="row">
 +
<div class="copyright-content">
  
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</div>  
+
<div class="row">
  
 +
<div class="col-xs-6 col-sm-6 col-md-6 col-lg-6">
 +
<img height=20 src="https://static.igem.org/mediawiki/2018/thumb/2/28/T--NEU_China_B--tb1.png/799px-T--NEU_China_B--tb1.png"
 +
alt="" class="src">
 +
<img height=20 src="https://static.igem.org/mediawiki/2018/thumb/6/60/T--NEU_China_B--tb0.png/800px-T--NEU_China_B--tb0.png"
 +
alt="" class="src">
 +
<img height=20 src="https://static.igem.org/mediawiki/2018/5/52/T--NEU_China_B--tb3.png" alt="" class="sr">
 +
<img height=20 src="https://static.igem.org/mediawiki/2018/4/4f/T--NEU_China_B--tb2.png" alt="" class="src">
 +
<img height=20 src="https://static.igem.org/mediawiki/2018/4/48/T--NEU_China_B--tb4.png" alt="" class="src">
 +
<img height=20 src="https://static.igem.org/mediawiki/2018/thumb/b/be/T--NEU_China_B--tb5.png/799px-T--NEU_China_B--tb5.png"
 +
alt="" class="src">
  
 +
</div>
  
−
<div class="column third_size" >
+
<div class="col-xs-6 col-sm-6 col-md-6 col-lg-6">
−
<div class="highlight decoration_B_full">
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<img height=20 src="https://static.igem.org/mediawiki/2018/thumb/b/b9/T--NEU_China_B--tb6.png/320px-T--NEU_China_B--tb6.png"
−
<h3> Editing your wiki </h3>
+
alt="" class="src">
−
<p>On this page you can document your project, introduce your team members, document your progress and share your iGEM experience with the rest of the world! </p>
+
<img height=20 src="https://static.igem.org/mediawiki/2018/thumb/d/d9/T--NEU_China_B--tb7.png/320px-T--NEU_China_B--tb7.png"
−
<p>Use WikiTools - Edit in the black menu bar to edit this page</p>
+
alt="" class="src">
−
 
+
<img height=20 src="https://static.igem.org/mediawiki/2018/thumb/4/4a/T--NEU_China_B--tb8.png/320px-T--NEU_China_B--tb8.png"
−
<div class="button_link">
+
alt="" class="src">
−
<a href="https://2018.igem.org/wiki/index.php?title=Team:NEU_China_B&action=edit">
+
<img height=20 src="https://static.igem.org/mediawiki/2018/thumb/4/47/T--NEU_China_B--tb9.png/799px-T--NEU_China_B--tb9.png"
−
EDIT PAGE
+
alt="" class="src">
−
</a>
+
<img height=20 src="https://static.igem.org/mediawiki/2018/thumb/2/2d/T--NEU_China_B--tb10.png/202px-T--NEU_China_B--tb10.png"
−
</div>
+
alt="" class="src">
−
 
+
<img height=20 src="https://static.igem.org/mediawiki/2018/thumb/b/be/T--NEU_China_B--tb5.png/320px-T--NEU_China_B--tb5.png"
−
 
+
alt="" class="src">
−
</div>
+
<img height=20 src="https://static.igem.org/mediawiki/2018/4/4f/T--NEU_China_B--tb2.png" alt="" class="src">
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</div>
+
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−
 
+
−
 
+
−
 
+
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+
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<div class="clear extra_space"></div>
+
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<div class="line_divider"></div>
+
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<div class="clear extra_space"></div>
+
−
 
+
−
 
+
−
 
+
−
<div class="column two_thirds_size" >
+
−
<h3>Tips</h3>
+
−
<p>This wiki will be your team’s first interaction with the rest of the world, so here are a few tips to help you get started: </p>
+
−
<ul>
+
−
<li>State your accomplishments! Tell people what you have achieved from the start. </li>
+
−
<li>Be clear about what you are doing and how you plan to do this.</li>
+
−
<li>You have a global audience! Consider the different backgrounds that your users come from.</li>
+
−
<li>Make sure information is easy to find; nothing should be more than 3 clicks away. </li>
+
−
<li>Avoid using very small fonts and low contrast colors; information should be easy to read.  </li>
+
−
<li>Start documenting your project as early as possible; don’t leave anything to the last minute before the Wiki Freeze. For a complete list of deadlines visit the <a href="https://2018.igem.org/Calendar">iGEM 2018 calendar</a> </li>
+
−
<li>Have lots of fun! </li>
+
−
</ul>
+
−
</div>
+
−
 
+
−
 
+
−
<div class="column third_size">
+
−
<div class="highlight decoration_A_full">
+
−
<h3>Inspiration</h3>
+
−
<p> You can also view other team wikis for inspiration! Here are some examples:</p>
+
−
<ul>
+
−
<li> <a href="https://2014.igem.org/Team:SDU-Denmark/"> 2014 SDU Denmark </a> </li>
+
−
<li> <a href="https://2014.igem.org/Team:Aalto-Helsinki">2014 Aalto-Helsinki</a> </li>
+
−
<li> <a href="https://2014.igem.org/Team:LMU-Munich">2014 LMU-Munich</a> </li>
+
−
<li> <a href="https://2014.igem.org/Team:Michigan"> 2014 Michigan</a></li>
+
−
<li> <a href="https://2014.igem.org/Team:ITESM-Guadalajara">2014 ITESM-Guadalajara </a></li>
+
−
<li> <a href="https://2014.igem.org/Team:SCU-China"> 2014 SCU-China </a></li>
+
−
</ul>
+
−
</div>
+
−
</div>
+
  
 +
</div>
  
 +
</div>
  
 +
</div>
 +
<ul class="social">
 +
</ul>
 +
</div>
 +
</div>
 +
</div>
 +
<!--/ End Copyright -->
 +
</footer>
  
 
</html>
 
</html>

Latest revision as of 03:39, 18 October 2018

Ruby - Responsive Corporate Tempalte

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Abstract

The role of L-lactate is not always beneficial for the yogurt fermentation due to excessive L-lactate can provide an optimized growth condition for yeast and mold. Therefore, it is important to detect the concentration of L-lactate. Acid-base titration is a common method for it, but this method is complicated and time-consuming. In order to monitor L-lactate quickly and conveniently, we designed a biosensor for detecting L-lactate concentration by using the lldPRD L-lactate operon and QS system in E. coli. One of these parts is able to induce the lldPRD genes expression, LuxS protein, in the presence of L-lactate. LuxS protein catalyzes the SAM cycle and produces a small signaling molecule AI-2 that motivates our second part promoter of LsrA&K to promote GFP expression. The optic fiber is able to detect the GFP signal and convert it into current. Simultaneously, the entire device container will be made by 3D printing.