Team:Cornell/project/background

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Cornell iGEM

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Project Background

Water Pollution

Heavy metal pollution in water is one of the most significant public health risks around the world. Pollutants including lead, mercury, and nickel can enter water supplies through a number of methods including improper disposal of waste, industrial manufacturing, and mining. When solubilized, they have the ability to cause environmental and health problems. These heavy metals are acutely toxic at high concentrations and carcinogenic with long-term exposure even at low concentrations. Methods exist to remove heavy metals from water supplies, but these methods create other hazardous wastes and are much more effective in waters with high concentrations of metals. Due to the high affinity of binding proteins, a biological based filtration system can be more effective at treating water contaminated with lower concentrations of heavy metals without generating large volumes of toxic waste.





Sequestration Systems

Previously, research groups have developed such filtration systems for some of the most harmful heavy metals. One of our faculty advisors at Cornell, Dr. David Wilson, has developed such systems for mercury and nickel. We plan to work to improve the efficiency and lifespan of these filtration systems. Additionally, we will be developing a novel sequestration system for lead by utilizing a putative lead transport protein from Nicotiana tabacum. Further information the the toxic effects of the heavy metals we are targeting as well as the transport proteins we are utilizing can be found by clicking the icons below.

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No one rejects, dislikes, or avoids pleasure itself, because it is pleasure, but because those who do not know how to pursue pleasure rationally encounter consequences that are extremely painful. Nor again is there anyone who loves or pursues or desires to obtain pain of itself, because it is pain, but because occasionally circumstances occur in which toil and pain can procure him some great pleasure. To take a trivial example, which of us ever undertakes laborious physical exercise, except to obtain some advantage from it? But who has any right to find fault with a man who chooses to enjoy a pleasure that has no annoying consequences, or one who avoids a pain that produces no resultant pleasure? On the other hand, we denounce with righteous indignation and dislike men who are so beguiled and demoralized by the charms of pleasure of the moment, so blinded by desire, that they cannot foresee.

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Lead

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Pollution Transporter

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Mercury

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Pollution Transporter

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Nickel

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Pollution Transporter

Header 3

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References


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