Team:Buenos Aires/ device

From 2013.igem.org

(Difference between revisions)
(The Device)
(The Device)
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= The Device =
= The Device =
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We developed a physical design that meets our fundamental requirements:
We developed a physical design that meets our fundamental requirements:
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• easy to use
• easy to use
 +
• cheap
• cheap
 +
• safe
• safe
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The physical design of our device consists of a plastic support in which we will deliver the bacteria lyophilized. It will contain four different wells of bacteria: three wells will work as a standard pattern, each of them containing different amounts of arsenite physically isolated from bacteria, and a fourth well (the testing well) that will be used for sample measurement.
The physical design of our device consists of a plastic support in which we will deliver the bacteria lyophilized. It will contain four different wells of bacteria: three wells will work as a standard pattern, each of them containing different amounts of arsenite physically isolated from bacteria, and a fourth well (the testing well) that will be used for sample measurement.
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The usage of the device consists of:
The usage of the device consists of:
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• Collecting a sample of ground water.  
• Collecting a sample of ground water.  
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• Adding the sample to the testing well and distilled water (provided with the device) to the standard pattern wells at the same time. As distilled water is added, arsenite in the standard wells dissolves and gets in contact with bacteria. At the same time, bacteria are recovered from the lyophilized state by the water added.
+
 
 +
• Adding the sample to the testing well and distilled water (provided with the device) to the standard pattern wells at the same time. As distilled water is added, arsenite in the  
 +
standard wells dissolves and gets in contact with bacteria. At the same time, bacteria are recovered from the lyophilized state by the water added.
 +
 
• Incubate for some hours, until colour differences are appreciable.
• Incubate for some hours, until colour differences are appreciable.
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• After usage, the whole kit should be introduced in a bleach solution and disposed.
• After usage, the whole kit should be introduced in a bleach solution and disposed.
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Finally, the user will be able to know if the water tested is drinkable, around the limit of arsenite allowed by the World Health Organisation or above it, by comparison with the standard pattern.
Finally, the user will be able to know if the water tested is drinkable, around the limit of arsenite allowed by the World Health Organisation or above it, by comparison with the standard pattern.
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Revision as of 02:39, 28 September 2013

The Device

We developed a physical design that meets our fundamental requirements:

• easy to use

• cheap

• safe


The physical design of our device consists of a plastic support in which we will deliver the bacteria lyophilized. It will contain four different wells of bacteria: three wells will work as a standard pattern, each of them containing different amounts of arsenite physically isolated from bacteria, and a fourth well (the testing well) that will be used for sample measurement.


The usage of the device consists of:

• Collecting a sample of ground water.

• Adding the sample to the testing well and distilled water (provided with the device) to the standard pattern wells at the same time. As distilled water is added, arsenite in the standard wells dissolves and gets in contact with bacteria. At the same time, bacteria are recovered from the lyophilized state by the water added.

• Incubate for some hours, until colour differences are appreciable.

• After usage, the whole kit should be introduced in a bleach solution and disposed.


Finally, the user will be able to know if the water tested is drinkable, around the limit of arsenite allowed by the World Health Organisation or above it, by comparison with the standard pattern.


Stepbystep.jpg


With a few simple steps, the measurement could be done, as stated in the next animation: