Difference between revisions of "Team:CU Boulder/project/motivation"
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− | <h2> | + | <h2>The CU Boulder iGEM team was inspired by combining ideas from previous work and legislation related to fracking with recently-produced genetics including the use of logic gates and cell-to-cell signaling. This combination ultimately results in the most cutting-edge naphthalene biosensor for practical industrial use in controlling groundwater contamination due to fracking.</h2> |
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<p>Overall history of fracking, beginning with origins, discussion of general attitudes and | <p>Overall history of fracking, beginning with origins, discussion of general attitudes and | ||
motivations within the industries, describe general end goal that people are working on | motivations within the industries, describe general end goal that people are working on | ||
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<div class="date">2004</div><div class="fact_title fact_2004">Early Engineering of Whole Cell Biosensors</div> | <div class="date">2004</div><div class="fact_title fact_2004">Early Engineering of Whole Cell Biosensors</div> | ||
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− | <p> | + | <p>The first description of a whole-cell biosensor with environmental applications was described by researchers at the Swiss Federal Institute for Environmental Science and Technology. They engineered Pseudomonas putida bacteria to luminesce proportionately to aqueous naphthalene concentrations. However, these bacteria had complex biochemical pathways that were not well enough understood to be easily adjusted and refined. Furthermore, the cells were not sensitive enough to report the dilute naphthalene concentrations that fracking companies may be interested in reporting.</p> |
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<div class="date">2005</div><div class="fact_title fact_2005">Bush Signs Energy Policy Act</div> | <div class="date">2005</div><div class="fact_title fact_2005">Bush Signs Energy Policy Act</div> | ||
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− | <p> | + | <p>The Energy Policy Act of 2005 was passed to change US energy regulations, and restructuring tax incentives within the energy industries. Part of this bill included a provision that would exempt natural gas companies that use fracking from disclosing the chemicals involved that would normally be required of energy companies. While many drilling companies would benefit, it caused the started to grow skeptical about their intentions and the environmental impact of hydraulic fracturing.</p> |
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<div class="date">2011</div><div class="fact_title fact_2011">Founding of FracFocus Chemical Disclosure Agency</div> | <div class="date">2011</div><div class="fact_title fact_2011">Founding of FracFocus Chemical Disclosure Agency</div> | ||
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− | <p> | + | <p>According to their website, FracFocus Chemical Disclosure is a government run agency that was the first to provide public access to information on fracking and the chemicals used near homes. Naphthalene was reported as the most common, as it was found in more than 30% of all contamination sites. Recent legislation has required companies to register the chemicals they use on FracFocus, and it coordinates with reporting companies to keep updated records of contaminant history across the United States. The foundation of the site and coordinating legislation provided transparency, but few companies have been held accountable for data published through FracFocus.</p> |
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<div class="date">2012</div><div class="fact_title fact_2012">OptiEnz Sensors Begin Use</div> | <div class="date">2012</div><div class="fact_title fact_2012">OptiEnz Sensors Begin Use</div> | ||
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− | <p> | + | <p>Since the government had loose regulations on fracking contamination and people grew more concerned about the now-reported chemicals being used, the private sector’s demand for chemical sensors increased. OptiEnz is a leading biosensor development company that was founded by a professor at Colorado State University. Their product uses extracted enzymes and fiber optics to sense real-time pollution directly in the water source, preventing the need for pretreatment and skilled labor that has been previously required.</p> |
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<div class="date">2013</div><div class="fact_title fact_2013">Peking iGEM Team Improves Aromatic Transcriptional Regulators</div> | <div class="date">2013</div><div class="fact_title fact_2013">Peking iGEM Team Improves Aromatic Transcriptional Regulators</div> | ||
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− | <p> | + | <p>Based on information from their wiki, the 2013 iGEM team from Peking developed many parts to detect aromatic compounds. Among those produced were the NahR transcriptional regulator combined with a salicylate promoter and an sfGFP gene that can respond to naphthalene at concentrations within an order of magnitude of the EPA’s maximum of 20 µg/L. This part was thoroughly characterized and available in the distribution kit, so it quickly became the goal of the CU 2015 team to improve its use to make the system more sensitive, easier to use, and ultimately more practical for industrial application.</p> |
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Revision as of 02:53, 17 September 2015
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