Team:Imperial College London/Tour/Page Two

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|style="font-family: helvetica, arial, sans-serif;font-size:2em;color:#ea8828;" colspan="2"|Welcome to the tour!
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|style="font-family: helvetica, arial, sans-serif;font-size:2em;color:#ea8828;" colspan="2"|Modelling
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|colspan="2" valign="top"|[[Team:Imperial_College_London/The_Team | The team]] embarked on our iGEM project in early July, after finishing our exams and having about a week off for a bit of rest and relaxation. There have been highs, there have been lows (our [[Team:Imperial_College_London/Diary/Week_One | diary]] can give you all the details, or even our [[Team:Imperial_College_London/Media/Videos | video diary]] if you're feeling adventurous!), but it's all part of the amazing journey that is iGEM. Follow this brief tour of our project for an idea of what we got upto.
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|colspan="2" valign="top"|So now the design concept has been thought out, how could we begin to fill in the details? Will our system be sensitive enough to trigger? How can we make our output mechanism as fast as possible? By applying some complicated equations, we gained '''[[Team:Imperial_College_London/Modelling | modelling data]]''' that fed straight back into our design.  
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|colspan="2" valign="top"|We had great fun with our initial [[Team:Imperial_College_London/Brainstorming | brainstorming]] sessions, but we soon focused on an area we found interesting: biosensors. Synthetic biology has great potential for biosensors, but there are definitely a few key problems with current solutions.
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|colspan="2" valign="top"|Next came the lab work. A complex '''[[Team:Imperial_College_London/Strategy | assembly strategy]]''' was developed, and three separate lab teams formed. Over the course of the project we developed '''[[Team:Imperial_College_London/Parts | 23 different parts]]'''. For a more technical overview of what we did and how we did it, take a look at our '''[[Team:Imperial_College_London/Protocol | lab protocol]]''' and '''[[Team:Imperial_College_London/Lab_Diaries/XylE_team | lab diary]]''' pages.
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|style="font-family: helvetica, arial, sans-serif;font-size:2em;color:#ea8828;" colspan="2"|Current problems
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|colspan="2" valign="top"|'''Time - '''Current solutions can take anything from hours to weeks to generate a visible output. What if you could design a system that was capable of responding in minutes?
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|colspan="2" valign="top"|The moment of truth! For a comprehensive overview of what happened, check out our '''[[Team:Imperial_College_London/Results | results page]]'''. One part we are particularly proud of is the extensive characterisation of the existing XylE BioBrick, and a series of successful assays of our inactivated GFP-XylE fusion protein.
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'''Capability - '''Current solutions are limited to a variety of simple inputs. Basic chemicals, environmental changes, etc. What if you could detect something more complex, like a protein?
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'''Modularity - '''Current systems tend to have a fixed input/output. What if you could create a framework that allowed inputs and outputs to be mixed and matched together?
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|colspan="2" valign="top"|After much deliberation, we decided that something with a strong health impact would be a good candidate for detection. But how, why, and what? This is when we brought our [[Team:Imperial_College_London/Human_Practices/Panel_Discussion | human practices]] to bear on the problem. A series of expert meetings, workshops and a panel discussion later, we found our target. Parasites - hard to detect, but easy to treat. In particular we looked at the [[Team:Imperial_College_London/Schistosoma | schistosoma parasite]], a neglected tropical disease which affects over 200 million people worldwide. If we could create a cheap, easy and safe system, then it might really make a difference.
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|colspan="2" valign="top"|Take a look at our '''[[Team:Imperial_College_London/Achievements | achievements page]]''' for the full list of what we accomplished this summer. Some accomplishments we are particularly proud of include running a series of school workshops, working for the first time on Neglected Tropical Diseases, extensively characterising a set of parts, creating a truly modular system, and designing a system based upon both modelling and human practices data.
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|style="font-family: helvetica, arial, sans-serif;font-size:2em;color:#ea8828;" colspan="2"|The engineering cycle
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|colspan="2" valign="top"|With a goal in mind, what was the most efficient way to develop our project? We decided to follow the engineering design cycle. We first produced a specification based on the problems we had identified with previous biosensors, combined with ethical and logistical factors identified through the [[Team:Imperial_College_London/Human_Practices/Report | human practices report]]. Next came the fun part.
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|colspan="2" valign="top"|Public engagement is an essential part of research; bridging the gap between academics and the wider public can achieve so much. When discussing this aspect of synthetic biology, we realised that school students would be an interesting demographic to present the subject to. We also liked the idea of inspiring young people to learn more about synthetic biology and iGEM, so we ran a series of '''[[Team:Imperial_College_London/School_Workshops | school workshops]]''' and developed a toolkit so you can run your own.
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|colspan="2" valign="top"|With our specification at the ready, how did we want to design our system? What [[Team:Imperial_College_London/Chassis | chassis]] should we use? How can we split up our project? After intense [[Team:Imperial_College_London/Research | research]] we settled on using ''B. subtilis'', and dividing the project into [[Team:Imperial_College_London/Modules | three modules]]. This makes it more powerful to use, simpler to create, and allows us to focus each module on solving an identified problem.
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|colspan="2" valign="top"|To highlight and explore the modularity of our system, we created a '''[[Team:Imperial_College_London/Software_Tool | software tool]]''' that allows you to customise your input. By changing the protease recognition site of the surface protein you can detect whatever protease you like. We've created a list of options that would be interesting to detect, and other variables to adjust your sensor. Also included here are a few ideas for what you could use our cell-wall-binding biobrick to attach to the surface of a cell.
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|colspan="2"|We decided to design a [[Team:Imperial_College_London/Modules/Detection | new mechanism for parasite detection]] - by using the proteases they release. A novel protein is bound to the cell surface, with a signalling peptide attached via a protease cleavage site. When the protease comes along, the signal peptide is released, allowing it to activate our signaling module.
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|colspan="2"|To transduce the signal we used a [[Team:Imperial_College_London/Modules/Signaling | quorum sensing system]] of a gram positive bacterium. The two component signal transduction system taken from S. pneumoniae transfers our peptide signal into the cell, activating the fast response module.
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|colspan="2" valign="top"|We couldn't have completed this project all by ourselves, and we have '''[[Team:Imperial_College_London/Acknowledgments | many people to thank]]'''. Our supervisor Chris Hirst, our advisors, the Centre for Synthetic Biology and Innovation and the experts we consulted, among many others, made this project possible. Thank you everyone!
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|colspan="2"|Our [[Team:Imperial_College_London/Modules/Fast_Response | fast response mechanism]] is based around using an enzymatic amplification step acting upon a presynthesised substrate. This greatly reduces the time required for producing a recognisable output, enabling useful field testing kits.
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|colspan="2" valign="top"|We thought it would be nice to keep a strong visual diary of our project, so we recorded many '''[[Team:Imperial_College_London/Media/Videos | videos]]''' and took many '''[[Team:Imperial_College_London/Media/Pictures | pictures]]'''. As well as this, we were being filmed throughout for a documentary about Synthetic Biology. Head over to our '''[[Team:Imperial_College_London/Human_Practises/Documentary | documentary page]]''' for more information!
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Latest revision as of 03:52, 28 October 2010

Modelling
So now the design concept has been thought out, how could we begin to fill in the details? Will our system be sensitive enough to trigger? How can we make our output mechanism as fast as possible? By applying some complicated equations, we gained modelling data that fed straight back into our design.
Assembly
Next came the lab work. A complex assembly strategy was developed, and three separate lab teams formed. Over the course of the project we developed 23 different parts. For a more technical overview of what we did and how we did it, take a look at our lab protocol and lab diary pages.
Testing
The moment of truth! For a comprehensive overview of what happened, check out our results page. One part we are particularly proud of is the extensive characterisation of the existing XylE BioBrick, and a series of successful assays of our inactivated GFP-XylE fusion protein.
Achievements
Take a look at our achievements page for the full list of what we accomplished this summer. Some accomplishments we are particularly proud of include running a series of school workshops, working for the first time on Neglected Tropical Diseases, extensively characterising a set of parts, creating a truly modular system, and designing a system based upon both modelling and human practices data.
School Workshops
Public engagement is an essential part of research; bridging the gap between academics and the wider public can achieve so much. When discussing this aspect of synthetic biology, we realised that school students would be an interesting demographic to present the subject to. We also liked the idea of inspiring young people to learn more about synthetic biology and iGEM, so we ran a series of school workshops and developed a toolkit so you can run your own.
Software Tool
To highlight and explore the modularity of our system, we created a software tool that allows you to customise your input. By changing the protease recognition site of the surface protein you can detect whatever protease you like. We've created a list of options that would be interesting to detect, and other variables to adjust your sensor. Also included here are a few ideas for what you could use our cell-wall-binding biobrick to attach to the surface of a cell.
Acknowledgments
We couldn't have completed this project all by ourselves, and we have many people to thank. Our supervisor Chris Hirst, our advisors, the Centre for Synthetic Biology and Innovation and the experts we consulted, among many others, made this project possible. Thank you everyone!
Media
We thought it would be nice to keep a strong visual diary of our project, so we recorded many videos and took many pictures. As well as this, we were being filmed throughout for a documentary about Synthetic Biology. Head over to our documentary page for more information!
Return to the main page...