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

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                <h3>Interlab</h3>
 +
                <ul>
 +
                    <li><a href="#1" style="color: black;">Results and discussion:</a></li>
 +
                    <li><a href="#1" style="color: black;">Conclusion：</a></li>
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<div class="zhengwen">
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    <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>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.</span><p></p>
 +
</div>
 +
<p class="konghang" id="1" style="text-indent:30.0pt;line-height:200%;"><span style="font-family:'Candara',sans-serif; font-size:15.0pt; color:black; ">&nbsp;</span></p>
 +
<div class="bigtitle">
 +
    Results and discussion:
 +
    <hr style="FILTER: alpha(opacity=100,finishopacity=0,style=3)" width="100%" size="3" color="#555">
 +
</div>
 +
<div class="zhengwen">
 +
    <span>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.</span>
 +
    <div class="chatu" style="padding:20px 10%;"><img src="https://static.igem.org/mediawiki/2018/a/a8/T--UESTC-China--interlab1.png" width="100%"></div>
 +
    <div class="chatu" style="padding:20px 10%;"><img src="https://static.igem.org/mediawiki/2018/5/50/T--UESTC-China--interlab2.png" width="100%"></div>
 +
</div>
 +
<div class="smtitle"><i class="fa fa-chevron-right"></i>&nbsp;Cell measurement ：</div>
 +
<div class="zhengwen">
 +
    <ul>
 +
        Devices:
 +
        <li>Positive control: BBa_I20270</li>
 +
        <li>Negative control: BBa_R0040</li>
 +
        <li>Device 1: BBa_J364000</li>
 +
        <li>Device 2: BBa_J364001</li>
 +
        <li>Device 3: BBa_J364002</li>
 +
        <li>Device 4: BBa_J364003</li>
 +
        <li>Device 5: BBa_J364004</li>
 +
        <li>Device 6: BBa_J364005</li>
 +
    </ul>
 +
</div>
 +
<div class="zhengwen">
 +
    <span>Calibration material: LUDOX for absorbance and Fluorescein for fluorescence (provided in the iGEM distribution kit)</span>
 +
</div>
 +
<div class="zhengwen">
 +
    <span>Microorganism: Escherichia coli DH5⍺ strains</span><p></p>
 +
    <span>The protocol was easy to follow and the constructs were nicely expressed which makes our measurements more reliable and comparable. After 0, 2, 4 and 6 hours, we measured the OD600 and the fluorescence of the transformed cells according to the protocol. We obtained the following data from the measurement and use the three standard curves to calculate the data.</span><p></p>
 +
    <div class="chatu" style="padding:20px 10%;"><img src="https://static.igem.org/mediawiki/2018/6/67/T--UESTC-China--interlab3.png" width="100%"></div>
 +
    <span>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. </span>
 +
</div>
 +
<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>
 +
<div class="bigtitle">
 +
    Conclusion：
 +
    <hr style="FILTER: alpha(opacity=100,finishopacity=0,style=3)" width="100%" size="3" color="#555">
 +
</div>
 +
<div class="zhengwen">
 +
    <span>
 +
        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.
 +
    </span>
 +
</div>
  
−
<div class="column full_size">
 
−
<h1>InterLab</h1>
 
−
<h3>Bronze Medal Criterion #4</h3>
 
−
<p><b>Standard Tracks:</b> Participate in the Interlab Measurement Study and/or obtain new, high quality experimental characterization data for an existing BioBrick Part or Device and enter this information on that part's Main Page in the Registry. The part that you are characterizing must NOT be from a 2018 part number range.
 
−
<br><br>
 
−
For teams participating in the <a href="https://2018.igem.org/Measurement/InterLab">InterLab study</a>, all work must be shown on this page.
 
  
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</p>
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            </div><!--以上为正文-->
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Revision as of 02:29, 22 September 2018

team

Interlab
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, 2, 4 and 6 hours, we measured the OD600 and the fluorescence of the transformed cells according to the protocol. We obtained the following 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.
Copyright © 2018 iGEM UESTC_China