Difference between revisions of "Team:Mingdao/Description"

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<strong>How: </strong> We met Dr. Yu-Chan Chao from Institute of Molecular Biology, Academia Sinica through video chat to discuss the paper he published for his research in United States. [Nature (1996) Pest control by fluorescence.] </br>
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<strong>Physics-Physical absorption: </strong> </br>
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(1) Using organic or inorganic solvents(For example: Propylene Carbonate,, and ocean water.) as absorbents</br>
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(2) Using solid absorbents,such as carbon or Zeollte to absorb carbon dioxide.</br>
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Disadvantages:</br>
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(1) The absorption is deteriorated due to the sulfide, causing the number of regeneration to lessen.</br>
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(2) The absorption isn't effective </br>
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<strong>What:</strong>
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<strong>Chemistry-​Chemical absorption:</strong>
 
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1. He described the biotechnique he developed in the paper.</br>
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● The chemical reaction between the absorbent and carbon dioxide is used to recycle CO​2​,and the reverse reaction is used to regenerate the absorbent.</br>
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2. He introduced his current work and research interests in his lab.</br>
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● Disadvantage:There are many operational variables,making it more cumbersome to operate.</br>
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3. He gave comments to our project about the blood testing with GE mosquitoes. </br>
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4. He encouraged us never give up and continue toward the goal what we set in the beginning. </br>
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</br>
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<strong>Biology-biological absorption:</strong></br>
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● Taking advantage of photosynthesis in plants.</br>
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● Disadvantages:</br>
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(1)The efficiency is low</br>
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(2)The caring is time-consuming.</br>
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(3)The growing condition of the plants are unpredictable</br>
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</p></br>
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</br>
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<strong>Our approach:</strong></br>
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Since the solubility of CO​2​ is low in water, we combine biology and chemistry method, inserting the gene that can produce carbonic anhydrase(CA, which can increase the solubility of CO​2​ in water) into ​bacillus subtilis. T​ hen use light and high photosynthesis efficiency algae to purify the water quality.</br>
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</p></br>
  
 
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<strong>Reflection:</strong>
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<strong>Comparison:</strong></br>
 
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We’re excited about the work Dr. Chao did using GE insect to pest control by fluorescence. It’s not only interesting but also workable. We learned doing scientific research in a lab is not easy at all, as what we experienced in iGEM project this year. However, we’re encouraged from the distinguished researcher and will keep moving forward to our dream.  
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Physics and chemical methods must be done in lab, while our approach can be used in any place. The physics method needs very large space in the application place especially, comparing to our device, it’s light and portable.</br>
 
</p></br>
 
</p></br>
  

Revision as of 04:05, 26 June 2019

Description

Proposal for submitting to GenScript

Problem:
High concentration of carbon dioxide in enclosed space make people feel sleepy and even dizzy.This can even result in
(1) fell asleep during class.
(2) driver may fell asleep, causing accident to happen.

CO​2​ analysis:
In order to prove the seriousness , we measure the CO​2​ concentration in enclosed spaces and analysis the results.
If the concentration of CO​2​ is between :
● 350~1000 ppm, the air is fresh
● 1000~2000 ppm, people feel the air turbid and start feeling drowsy
● 2000~5000 ppm,people feel headache,lethargy, sluggishness, heart beat hasten, mild nausea
● above 5000 ppm, it may cause severe hypoxia, coma..



picture(1):
picture (1) is the result of our measure in a simple single room(only one person inside an enclosed space with air condition on .) According to the picture,the concentration had reached to 1000 ppm in a hour. While the subject felt asleep, it slowly declined(We speculate CO​2​ may leak out from the gaps,and the rate of venting is bigger than the rate of producing.)Until getting up next day,the speed of breathing was back to normal.



picture(2): picture(2)is the result in a regular car with four people in. In eleven minutes, the concentration in the car had increased from 2353 ppm to 4660 ppm.
The result shows if staying in a unventilated room for a long time will have bad influences to our health.(the more people there are,the more CO​2​ is produced.It may increase the rate of CO​2​ production and make the problem even worse.) The problem of excessive CO​2​ concentration is indeed widely exists in our daily life and may have badly influenced our health.So it is important for people to solve these problems.


Current method:
we have gone to National Chung Hsing University,Taichung,Taiwan to search for current methods and come up with a better way.



Physics-Physical absorption:
(1) Using organic or inorganic solvents(For example: Propylene Carbonate,, and ocean water.) as absorbents
(2) Using solid absorbents,such as carbon or Zeollte to absorb carbon dioxide.
Disadvantages:
(1) The absorption is deteriorated due to the sulfide, causing the number of regeneration to lessen.
(2) The absorption isn't effective

Chemistry-​Chemical absorption:

● The chemical reaction between the absorbent and carbon dioxide is used to recycle CO​2​,and the reverse reaction is used to regenerate the absorbent.
● Disadvantage:There are many operational variables,making it more cumbersome to operate.

Biology-biological absorption:

● Taking advantage of photosynthesis in plants.
● Disadvantages:
(1)The efficiency is low
(2)The caring is time-consuming.
(3)The growing condition of the plants are unpredictable



Our approach:

Since the solubility of CO​2​ is low in water, we combine biology and chemistry method, inserting the gene that can produce carbonic anhydrase(CA, which can increase the solubility of CO​2​ in water) into ​bacillus subtilis. T​ hen use light and high photosynthesis efficiency algae to purify the water quality.



Comparison:

Physics and chemical methods must be done in lab, while our approach can be used in any place. The physics method needs very large space in the application place especially, comparing to our device, it’s light and portable.