Difference between revisions of "Part:BBa K1106004:Experience"
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===User Reviews=== | ===User Reviews=== | ||
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| − | |}; | + | <h2><strong>Detecting arsenic in Chinese medicine</strong></h2> |
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| + | <h4>Objective</h4> | ||
| + | <p> Measure the E. coli fluorescence intensity in different arsenic concentration with 3μg/ml Chinese medicine.</p> | ||
| + | |||
| + | <h4>Methods</h4> | ||
| + | <p> Arsenic solution with different arsenic acid concentration (0, 1, 10, 50 and 100 ppm) is added into E. coli DH5α with Plasmids encoding GFP under arsenic promoter(part: BBa_K1106004).<br> | ||
| + | Fluorescence was measured at: <br> | ||
| + | <ul> | ||
| + | <li><em>Excitation peak: 485nm</em></li> | ||
| + | <li><em>Emission peak: 538nm</em></li> | ||
| + | <li><em>Auto cutoff: 515nm</em></li> | ||
| + | </ul> | ||
| + | every 30 minutes. | ||
| + | |||
| + | <h4>Results</h4> | ||
| + | This part is still specific to arsenic in Chinese medicine, so we can apply it in Chinese medicine examination. | ||
| + | |||
| + | <center> | ||
| + | https://static.igem.org/mediawiki/parts/d/dc/2016hsitaiwanpart_arsenic_locorice.png | ||
| + | </center> | ||
| + | <h4>Discussion</h4> | ||
| + | Since E. coli expresses stronger fluorescence in higher arsenic concentration, this is a relevant promoter to detect the existence and measure the amount of arsenic. | ||
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Latest revision as of 10:00, 24 September 2016
This experience page is provided so that any user may enter their experience using this part.
Please enter
how you used this part and how it worked out.
Applications of BBa_K1106004
User Reviews
UNIQe95c4b47257d7697-partinfo-00000000-QINU
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HSiTAIWAN |
Detecting arsenic in Chinese medicineObjectiveMeasure the E. coli fluorescence intensity in different arsenic concentration with 3μg/ml Chinese medicine. Methods Arsenic solution with different arsenic acid concentration (0, 1, 10, 50 and 100 ppm) is added into E. coli DH5α with Plasmids encoding GFP under arsenic promoter(part: BBa_K1106004).
every 30 minutes. ResultsThis part is still specific to arsenic in Chinese medicine, so we can apply it in Chinese medicine examination.
DiscussionSince E. coli expresses stronger fluorescence in higher arsenic concentration, this is a relevant promoter to detect the existence and measure the amount of arsenic. |
UNIQe95c4b47257d7697-partinfo-00000002-QINU
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Igem BsAs 2013 |
Objective Characterize the response of the arsenite sensitive promoter measuring GFP production upon different arsenite concrentrations. Methods Several cultures carrying a plasmid that encodes GFP under this promoter(Bba_K1106004) were grown overnight with different arsenite concentration (0, 10, 50, 500 and 1000 ppb). After sonication, fluorescence was measured at 395nm excitation peak and 515nm emission peak. Each measure was normalized by culture density (OD 600nm). Results As shown in the graphics below GFP production increases with the arsenite concentration. Conclusion The promoter is sensitive to different arsenite concentrations.
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