Difference between revisions of "Team:Bielefeld-CeBiTec/Project/Detection"

Line 17: Line 17:
 
<div class="jumbotron" style="background-image: url(https://static.igem.org/mediawiki/2015/f/fb/Bielefeld-CeBiTec_jumbotron_fluorescence_detection.png)">
 
<div class="jumbotron" style="background-image: url(https://static.igem.org/mediawiki/2015/f/fb/Bielefeld-CeBiTec_jumbotron_fluorescence_detection.png)">
 
<div class="jumbotron-text">
 
<div class="jumbotron-text">
−
<h1 style="margin-bottom: 0px">Fluorescence Detection</h1>
+
<h1 style="margin-bottom: 0px">Output signal</h1>
−
<p>GFP is green, RFP is red, what a beautiful thing we have seen</p>
+
<p>An easy way for fluorescence detection</p>
  
 
</div>
 
</div>
 
</div>
 
</div>
 +
<p> <strong> We provide an easy method for fluorescence detection and analysis. </strong> </p>
 
<p>We wanted to design a practical test strip for everyone. But how, when superfolder GFP is the ideal reporter protein for <i> in vitro </i> protein synthesis (<a href= "https://2015.igem.org/Team:Bielefeld-CeBiTec/Project/Detection#Lentini2013">Lentini et al, 2013 </a>)? It is not visible to the naked eye. Therefore, we designed a device to detect fluorescence. We researched previous iGEM projects with comparable needs and intentions, e.g. iGEM Aachen 2014. They used a filter in front of a sensor to detect fluorescence. But it did not work sufficiently. Another approach is to put a filter in front of the flash, as described by <a href= "https://2015.igem.org/Team:Bielefeld-CeBiTec/Project/Detection#Hossain2014">Hossain et al, 2014 </a>. They analyzed a photo that had been taken with a smartphone camera.</p>
 
<p>We wanted to design a practical test strip for everyone. But how, when superfolder GFP is the ideal reporter protein for <i> in vitro </i> protein synthesis (<a href= "https://2015.igem.org/Team:Bielefeld-CeBiTec/Project/Detection#Lentini2013">Lentini et al, 2013 </a>)? It is not visible to the naked eye. Therefore, we designed a device to detect fluorescence. We researched previous iGEM projects with comparable needs and intentions, e.g. iGEM Aachen 2014. They used a filter in front of a sensor to detect fluorescence. But it did not work sufficiently. Another approach is to put a filter in front of the flash, as described by <a href= "https://2015.igem.org/Team:Bielefeld-CeBiTec/Project/Detection#Hossain2014">Hossain et al, 2014 </a>. They analyzed a photo that had been taken with a smartphone camera.</p>
 
<p> Both approaches use only one filter, while both emission and extinction require different filters. The usage of two filters on a smartphone with seperate camera and flashlight, one filter for emission and one for extinction, is our new approach. Now we can detect the fluorescence specifically and display it on an image. Nevertheless, it is still not practicable for the user. So we decided to develop a smartphone app for the analysis of the fluorescence as output signal. You only have to take a photo with two filters attached to your smartphone and the app analyzes it and displays information about the substances that were detected, as we have shown for our cell free biosensors detecting several combined <a href="https://2015.igem.org/team:Bielefeld-CeBiTec/Project/HeavyMetals"target="_blank">heavy metals</a> and <a href="https://2015.igem.org/team:Bielefeld-CeBiTec/Project/DateRapeDrugs"target="_blank">date rape drugs</a>.</p>
 
<p> Both approaches use only one filter, while both emission and extinction require different filters. The usage of two filters on a smartphone with seperate camera and flashlight, one filter for emission and one for extinction, is our new approach. Now we can detect the fluorescence specifically and display it on an image. Nevertheless, it is still not practicable for the user. So we decided to develop a smartphone app for the analysis of the fluorescence as output signal. You only have to take a photo with two filters attached to your smartphone and the app analyzes it and displays information about the substances that were detected, as we have shown for our cell free biosensors detecting several combined <a href="https://2015.igem.org/team:Bielefeld-CeBiTec/Project/HeavyMetals"target="_blank">heavy metals</a> and <a href="https://2015.igem.org/team:Bielefeld-CeBiTec/Project/DateRapeDrugs"target="_blank">date rape drugs</a>.</p>
 
<p> Furthermore, it is important to take the photo in a dark environment. Therefore, we designed a small box in which the test strip can be placed. This box enables a suitable positioning of smartphone, filters and test strip. The box can be 3D printed and is therefore cheap and easily customizable.</p>
 
<p> Furthermore, it is important to take the photo in a dark environment. Therefore, we designed a small box in which the test strip can be placed. This box enables a suitable positioning of smartphone, filters and test strip. The box can be 3D printed and is therefore cheap and easily customizable.</p>
−
<p> <strong>In short: We provide an easy method for fluorescence detection and analysis. </strong> </p>
+
 
 
<h2 id="Fluorescence_detection_references">References</h2>
 
<h2 id="Fluorescence_detection_references">References</h2>
 
      
 
      

Revision as of 16:42, 18 September 2015

iGEM Bielefeld 2015


Output signal

An easy way for fluorescence detection

We provide an easy method for fluorescence detection and analysis.

We wanted to design a practical test strip for everyone. But how, when superfolder GFP is the ideal reporter protein for in vitro protein synthesis (Lentini et al, 2013 )? It is not visible to the naked eye. Therefore, we designed a device to detect fluorescence. We researched previous iGEM projects with comparable needs and intentions, e.g. iGEM Aachen 2014. They used a filter in front of a sensor to detect fluorescence. But it did not work sufficiently. Another approach is to put a filter in front of the flash, as described by Hossain et al, 2014 . They analyzed a photo that had been taken with a smartphone camera.

Both approaches use only one filter, while both emission and extinction require different filters. The usage of two filters on a smartphone with seperate camera and flashlight, one filter for emission and one for extinction, is our new approach. Now we can detect the fluorescence specifically and display it on an image. Nevertheless, it is still not practicable for the user. So we decided to develop a smartphone app for the analysis of the fluorescence as output signal. You only have to take a photo with two filters attached to your smartphone and the app analyzes it and displays information about the substances that were detected, as we have shown for our cell free biosensors detecting several combined heavy metals and date rape drugs.

Furthermore, it is important to take the photo in a dark environment. Therefore, we designed a small box in which the test strip can be placed. This box enables a suitable positioning of smartphone, filters and test strip. The box can be 3D printed and is therefore cheap and easily customizable.

References

Lentini, Roberta; Forlin, Michele; Martini, Laura; Del Bianco, Cristina; Spencer, Amy C.; Torino, Domenica; Mansy, Sheref S. (2013): Fluorescent proteins and in vitro genetic organization for cell-free synthetic biology. In ACS synthetic biology 2 (9), pp. 482–489. DOI: 10.1021/sb400003y

Hossain, Arafat; Canning, John; Ast, Sandra; Rutledge, Peter J.; Yen, Teh Li; Jamalipour, Abbas. (2014): Lab-in-a-phone: Smartphone-based Portable Fluorometer for pH Field Measurements of Environmental Water. In Sensors Journal, IEEE, pp. 5095-5102. DOI: 10.1109/JSEN.2014.2361651

Take a look at the results of our project.