Difference between revisions of "Team:UESTC-China/InterLab"

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<img src="https://static.igem.org/mediawiki/2018/7/7d/T--UESTC-China--up.png" width="100%">
 
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<div class="team" style="margin-top:-30px; position:relative; width:100%; z-index:1; background-color:#fff">
 
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         <img src="https://static.igem.org/mediawiki/2018/5/52/T--UESTC-China--InterLab.jpg" style="width: 100%; margin-top:45px;">
 
         <img src="https://static.igem.org/mediawiki/2018/5/52/T--UESTC-China--InterLab.jpg" style="width: 100%; margin-top:45px;">
 
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                <h3>Interlab</h3>
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<ul class="fl_l" style="margin-top:200px; opacity:0;">
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                    <li><a href="#yi" style="color: black;">Results and discussion:</a></li>
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<li><a href="#">Results and discussion:</a></li>
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                    <li><a href="#2" style="color: black;">Conclusion：</a></li>
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                                        <li><a href="#">Conclusion：</a></li>
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             <div class="main col-md-10 col-sm-8 col-xs-12">
 
<div class="zhengwen">
 
<div class="zhengwen">
 
     <span>Interlab studies is used to compare the results in different labs around the world. This study is organized by iGEM measurement committee in an effort to establish standardized, reliable and repeatable measurement tools for the iGEM community and the synthetic biology community as a whole. The objective of this year’s Interlab is to measurement three calibration and cell measurement protocol. According to the requirements, we completed calibration protocols first. We made three sets of unit calibration measurements: an OD600 reference point, a particle standard curve, and a fluorescein standard curve. In all three calibration measurements, we used the same plates and volumes in cell-based assays. For the plate reader our excitation and emission settings were 485 nm and 530 nm respectively (Same setting was used for all experiments below).</span><p></p>
 
     <span>Interlab studies is used to compare the results in different labs around the world. This study is organized by iGEM measurement committee in an effort to establish standardized, reliable and repeatable measurement tools for the iGEM community and the synthetic biology community as a whole. The objective of this year’s Interlab is to measurement three calibration and cell measurement protocol. According to the requirements, we completed calibration protocols first. We made three sets of unit calibration measurements: an OD600 reference point, a particle standard curve, and a fluorescein standard curve. In all three calibration measurements, we used the same plates and volumes in cell-based assays. For the plate reader our excitation and emission settings were 485 nm and 530 nm respectively (Same setting was used for all experiments below).</span><p></p>
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<p class="konghang" id="yi" style="text-indent:30.0pt;line-height:200%;"><span style="font-family:'Candara',sans-serif; font-size:15.0pt; color:black; ">&nbsp;</span></p>
 
<p class="konghang" id="yi" style="text-indent:30.0pt;line-height:200%;"><span style="font-family:'Candara',sans-serif; font-size:15.0pt; color:black; ">&nbsp;</span></p>
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<div class="bigtitle">
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<ul class="fl_r">
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<li>
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                <div class="bigtitle">
 
     Results and discussion:
 
     Results and discussion:
 
      
 
      
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<div class="smtitle"><i class="fa fa-chevron-right"></i>&nbsp;Cell measurement ：</div>
 
<div class="smtitle"><i class="fa fa-chevron-right"></i>&nbsp;Cell measurement ：</div>
 
<div class="zhengwen">
 
<div class="zhengwen">
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     <ul>
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         Devices:
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         Devices:</div><div class="zhengwen">
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         <li>Positive control: BBa_I20270</li>
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         <span>Positive control: BBa_I20270</span></div><div class="zhengwen">
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         <li>Negative control: BBa_R0040</li>
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         <span>Negative control: BBa_R0040</span></div><div class="zhengwen">
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         <li>Device 1: BBa_J364000</li>
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         <span>Device 1: BBa_J364000</span></div><div class="zhengwen">
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         <li>Device 2: BBa_J364001</li>
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         <span>Device 2: BBa_J364001</span></div><div class="zhengwen">
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         <li>Device 3: BBa_J364002</li>
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         <span>Device 3: BBa_J364002</span></div><div class="zhengwen">
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         <li>Device 4: BBa_J364003</li>
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         <span>Device 4: BBa_J364003</span></div><div class="zhengwen">
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         <li>Device 5: BBa_J364004</li>
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         <span>Device 5: BBa_J364004</span></div><div class="zhengwen">
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         <li>Device 6: BBa_J364005</li>
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         <span>Device 6: BBa_J364005</span></div><div class="zhengwen">
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<p class="konghang" id="2" style="text-indent:30.0pt;line-height:200%;"><span style="font-family:'Candara',sans-serif; font-size:15.0pt; color:black; ">&nbsp;</span></p>
 
<p class="konghang" id="2" style="text-indent:30.0pt;line-height:200%;"><span style="font-family:'Candara',sans-serif; font-size:15.0pt; color:black; ">&nbsp;</span></p>
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<div class="bigtitle">
 
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     Conclusion：
 
     Conclusion：
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Revision as of 13:46, 8 October 2018

team

Interlab studies is used to compare the results in different labs around the world. This study is organized by iGEM measurement committee in an effort to establish standardized, reliable and repeatable measurement tools for the iGEM community and the synthetic biology community as a whole. The objective of this year’s Interlab is to measurement three calibration and cell measurement protocol. According to the requirements, we completed calibration protocols first. We made three sets of unit calibration measurements: an OD600 reference point, a particle standard curve, and a fluorescein standard curve. In all three calibration measurements, we used the same plates and volumes in cell-based assays. For the plate reader our excitation and emission settings were 485 nm and 530 nm respectively (Same setting was used for all experiments below).

In the process of the experiment, the measurement of the three calibration were remarkable smooth. But in restrict of experiment condition, we met a lot of difficulties in cell measurement experiment. At last we get the corrected results after repeat multiple times.

 

  • Results and discussion:
    We measured the LUDOX CL-X , Microsphere suspension and Fluorescein to obtain the following results. In this way we can transform absorbance data into a standard OD600 measurement and we obtain a Particle Standard Curve and a Fluorescence standard curve.
     Cell measurement ：
    Devices:
    Positive control: BBa_I20270
    Negative control: BBa_R0040
    Device 1: BBa_J364000
    Device 2: BBa_J364001
    Device 3: BBa_J364002
    Device 4: BBa_J364003
    Device 5: BBa_J364004
    Device 6: BBa_J364005
    Calibration material: LUDOX for absorbance and Fluorescein for fluorescence (provided in the iGEM distribution kit)
    Microorganism: Escherichia coli DH5⍺ strains

    The protocol was easy to follow and the constructs were nicely expressed which makes our measurements more reliable and comparable. After 0 and 6 hours, we measured the OD600 and the fluorescence of the transformed cells according to the protocol. We obtained the data from the measurement and use the three standard curves to calculate the data.

    Compare the devices we can found that the different promoters will influence the expression of proteins. We can easily found that the promoters in test 1 and 4 is obviously stronger than the promoters in test device 3 and 6, for the GFP expression is higher than former.

     

  • Conclusion：
    We can find that the best fluorescence results is even higher than positive control. Device 4 shows the best fluorescence, but the absorbance values is not the highest. Device 3 shows us that the values of fluorescence almost no growth, but the absorbance values is the highest. At last the data suggest that the Interlab study was successful and the protocol can be shared in the community and between the laboratories.
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