Difference between revisions of "Team:Madrid-OLM/Measurement"

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                                 <li><p class="lead">We have also characterized the system with real protein concentrations (BSA), and modeled the system dependence under the change of different variables (time, the temperature of the led…):</p></li>
 
                                 <li><p class="lead">We have also characterized the system with real protein concentrations (BSA), and modeled the system dependence under the change of different variables (time, the temperature of the led…):</p></li>
 
                                 <img  class="figureimage" alt="Image1" src="https://static.igem.org/mediawiki/2018/7/7c/T--Madrid-OLM--Device--FirstPrototype--graghoptics9.png" style="width:90%;"/>
 
                                 <img  class="figureimage" alt="Image1" src="https://static.igem.org/mediawiki/2018/7/7c/T--Madrid-OLM--Device--FirstPrototype--graghoptics9.png" style="width:90%;"/>
 +
                            </ol>
 +
                            <p class="lead">If you want to know more about the system, check our First Prototype page:</p>
 +
                            <a class="btn btn--primary-2 btn--sm type--uppercase" href="https://2018.igem.org/Team:Madrid-OLM/FirstPrototype">
 +
                                <span class="btn__text">
 +
                                    First Prototype
 +
                                </span>
 +
                            </a>
 +
 +
                        </div>
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                            <h2>The electrochemical approach</h2>
 +
                            <p class="lead">We have realized that even if we accomplish a commercial Nanodrop sensibility, we are not going to measure accurately the concentration of our protein at the levels that we find in the environment. </p>
 +
                            <p class="lead">So we have developed a completely new system, integrating aptamers for bringing the specificity of our target protein to our measures.</p>
 +
                           
 +
                            <p class="lead">Before explaining the system and showing the results, we want to share with you our vision of why the aptamers are going to revolutionize the world of the organic measurements.</p>
 +
                            <p class="lead">Aptamers are artificial engineered ADN (or ARN) strands capable of join specifically to almost any kind of molecule big enough for having epitopes. They are the alternative to antibodies which involve several improvements like the non-use of animals in their production, the more affordability or the more stability at higher temperatures.</p>
 +
                            <a class="btn btn--primary-2 btn--sm type--uppercase" href="https://2018.igem.org/Team:Madrid-OLM/Aptamer">
 +
                                <span class="btn__text">
 +
                                    Aptamers
 +
                                </span>
 +
                            </a>
 +
                            <br/><br/>
 +
                            <p class="lead">Aptamers have a high potential to revolutionize the world of chemical measurements. The only reason why we did not find them in the previous iGEM years, is that there is not an easy, well documented and affordable system of discovery and measuring with them.</p>
 +
                            <p class="lead">This is what we have solved with the following results: </p>
 +
                            <ol class="ourlist">
 +
                                <li class="nomargin"><p class="lead">We have integrated the aptamers into a Cyclic Voltammetry measurement workflow. In this way, we have achieved quantification of 1.33 uM, integrating the gold standard of aptamers (the one for thrombin) in our system and measuring thrombin concentration.</p></li>
 +
                                <img  class="figureimage" alt="Image1" src="https://static.igem.org/mediawiki/2018/d/d8/T--Madrid-OLM--Aptamer--Electrode--T1.png" style="width:100%;"/>
 +
 +
                                <li class="nomargin"><p class="lead">We have developed our final device: a complete system for measuring in an automated way any kind of protein concentration. It only has the requirement of developing an electrode for this protein.</p></li>
 +
                                <img  class="figureimage" alt="Image1" src="https://static.igem.org/mediawiki/2018/8/89/T--Madrid-OLM--Awards--device.png" style="width:40%;"/>
 +
                                <img  class="figureimage" alt="Image1" src="https://static.igem.org/mediawiki/2018/8/8f/T--Madrid-OLM--Device--FinalPrototype--Micro--circuit5.png" style="width:60%;"/>
 +
                                <a class="btn btn--primary-2 btn--sm type--uppercase" href="https://2018.igem.org/Team:Madrid-OLM/FinalPrototype">
 +
                                    <span class="btn__text">
 +
                                        Final Device
 +
                                    </span>
 +
                                </a>
 
                                  
 
                                  
 +
                                <li><p class="lead">An electronic PCBs capable of measure 4 microfluidics chambers at the same time.</p></li>
 +
                                <img  class="figureimage" alt="Image1" src="https://static.igem.org/mediawiki/2018/8/8f/T--Madrid-OLM--Device--FirstPrototype--electrmeasure.png" style="width:80%;"/>
 
                                  
 
                                  
 +
                                <li><p class="lead">A cassette, which carries the microfluidic chip inside it, surrounded by two methacrylate slides with the optic modules housing.</p></li>
 +
                                <img  class="figureimage" alt="Image1" src="https://static.igem.org/mediawiki/2018/9/99/T--Madrid-OLM--Device--FirstPrototype--caset.png" style="width:80%;"/>
 
                                  
 
                                  
 +
                                <li><p class="lead">We have also characterized the system with real protein concentrations (BSA), and modeled the system dependence under the change of different variables (time, the temperature of the led…):</p></li>
 +
                                <img  class="figureimage" alt="Image1" src="https://static.igem.org/mediawiki/2018/7/7c/T--Madrid-OLM--Device--FirstPrototype--graghoptics9.png" style="width:90%;"/>
 
                             </ol>
 
                             </ol>
 +
                            <p class="lead">If you want to know more about the system, check our First Prototype page:</p>
 +
                            <a class="btn btn--primary-2 btn--sm type--uppercase" href="https://2018.igem.org/Team:Madrid-OLM/FirstPrototype">
 +
                                <span class="btn__text">
 +
                                    First Prototype
 +
                                </span>
 +
                            </a>
  
 
                         </div>
 
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Revision as of 21:50, 17 October 2018

Madrid-OLM

Measurement

Measurement

All along this year, we have been working in the problematic of how to measure almost any kind of protein with an automated device. We are willing to present our device to this award because we hope that you could see the potentiality of our system in the way in which we see it.

For solving this challenge we have developed two different measuring systems:

The optics approach

For our first approach, we have built, characterized and documented a microfluidic colorimeter, capable of measuring total protein concentration at 280 nm. We have designed all the parts included in the system:

  1. A laser-cut structure.

    2. Image1

  2. A microfluidic chip which brings microliters of the sample to the measurement chamber. It handles two experiments at the same time.

    3. Image1

  3. An electronic PCBs capable of measure 4 microfluidics chambers at the same time.

    4. Image1

  4. A cassette, which carries the microfluidic chip inside it, surrounded by two methacrylate slides with the optic modules housing.

    5. Image1

  5. We have also characterized the system with real protein concentrations (BSA), and modeled the system dependence under the change of different variables (time, the temperature of the led…):

    6. Image1

If you want to know more about the system, check our First Prototype page:

First Prototype

The electrochemical approach

We have realized that even if we accomplish a commercial Nanodrop sensibility, we are not going to measure accurately the concentration of our protein at the levels that we find in the environment.

So we have developed a completely new system, integrating aptamers for bringing the specificity of our target protein to our measures.

Before explaining the system and showing the results, we want to share with you our vision of why the aptamers are going to revolutionize the world of the organic measurements.

Aptamers are artificial engineered ADN (or ARN) strands capable of join specifically to almost any kind of molecule big enough for having epitopes. They are the alternative to antibodies which involve several improvements like the non-use of animals in their production, the more affordability or the more stability at higher temperatures.

Aptamers

Aptamers have a high potential to revolutionize the world of chemical measurements. The only reason why we did not find them in the previous iGEM years, is that there is not an easy, well documented and affordable system of discovery and measuring with them.

This is what we have solved with the following results:

  1. We have integrated the aptamers into a Cyclic Voltammetry measurement workflow. In this way, we have achieved quantification of 1.33 uM, integrating the gold standard of aptamers (the one for thrombin) in our system and measuring thrombin concentration.

    2. Image1

  2. We have developed our final device: a complete system for measuring in an automated way any kind of protein concentration. It only has the requirement of developing an electrode for this protein.

    3. Image1 Image1 Final Device

  3. An electronic PCBs capable of measure 4 microfluidics chambers at the same time.

    4. Image1

  4. A cassette, which carries the microfluidic chip inside it, surrounded by two methacrylate slides with the optic modules housing.

    5. Image1

  5. We have also characterized the system with real protein concentrations (BSA), and modeled the system dependence under the change of different variables (time, the temperature of the led…):

    6. Image1

If you want to know more about the system, check our First Prototype page:

First Prototype