Difference between revisions of "Team:Arizona State/Notebook"

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<li>The well plate is then placed in the appropriate imaging machine and OD600 and GFP expression is measured over a 8-16 hr period depending on the length of data collection needed. </li>
 
<li>The well plate is then placed in the appropriate imaging machine and OD600 and GFP expression is measured over a 8-16 hr period depending on the length of data collection needed. </li>
 
<center><img src=https://static.igem.org/mediawiki/2017/1/18/CC_graph.png></center>
 
<center><img src=https://static.igem.org/mediawiki/2017/1/18/CC_graph.png></center>
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<h2>ESA Induction Plates Liquid/Plated</h2>
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<h3>Wednesday, 7/19</h3>
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<p>will be starting with 3 ul of solution for the liquid culture plates for each of the ESA/-REC/GFP+/2620</p>
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<p>finale amount used was 9 ul </p>
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<ul>
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<li>Liquid culture made @ 9:42 am </li>
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<li>ESA Plated Culture: Plated at 10:08 am </li>
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<li>-Sender Plate (was improvised) and plated at 10:30 am</li>
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<li>Liquid culture checked @ 10:51 am</li>
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<li>ESA Plated Culture: Checked at 11:08 am</li>
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<li>-Sender Plate (was improvised) and Checked at 11:32 am</li>
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<li>Liquid culture checked @ 11:51 am</li>
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<li>ESA Plated Culture: Checked at 12:08 pm</li>
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<li>-Sender Plate (was improvised) and Checked at 12:32 pm</li>
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<li>Liquid culture checked @ 12:58 pm</li>
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<li>ESA Plated Culture: Checked at 12:59 pm</li>
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<li>-Sender Plate (was improvised) and Checked at 1:02 pm</li>
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<li>Liquid culture checked @ 1:58 pm</li>
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<li>ESA Plated Culture: Checked at 1:59 pm</li>
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<li>-Sender Plate (was improvised) and Checked at 2:02 pm</li>
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<li>Liquid culture checked @ 2:58 pm</li>
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<li>ESA Plated Culture: Checked at 2:59 pm - Induction has been started (minimum 4-5 hrs for ESAI) </li>
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<li>-Sender Plate (was improvised) and Checked at 3:08 pm</li>
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<li>Liquid culture checked @ 3:58 pm</li>
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<li>ESA Plated Culture: Checked at 3:59 pm</li>
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<li>-Sender Plate (was improvised) and Checked at 4:08 pm</li>
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</ul>
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<p>(initial plates need to be analyzed from an 18hr incubation time and distance migrated)</p>
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<h3> Thursday, 7/20 </h3>
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<p>Plates were checked and expression was seen in all components and all of the cells that can produce GFP. Though the GFP+ is still lacking expression compared to the GFP+ only plate. The Plated Culture and the negative Sender plates had the greatest amount of GFP+ though this is not of much concern as it is a cell that is simply there to verify that fluorescence is able to be seen. Since the 2620 is well characterized and expresses in each run the lack of GFP+ expression hasn't been much of an issue. Another phenomena that was noticed was the variation in the machine's exposure. I was using set exposure settings in the manual capture mode along with the UV 6 and Epi UV setting. it seems that the camera is still auto exposing to the brightest emitted light. This means that the relative exposure of all samples is dependent on the brightest object being photographed. So If I only have the GFP+ in the frame then the machine captures more of its detail and shows a (possible) different picture than when the GFP+ is imaged next to the 2620 which is marginally brighter than the GFP+</p>
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<p>Today I will be investigating over time lapse the progression of GFP expression in the 2620. I will be plating ESAI as the sender at 1.5 inches away from the 2620 receiver as well as at .25 inches away from 2620 and placing them side by side under the imager if possible in order to time lapse both of their progressions. It is my aim to have a more uniform spread for this aspect of the experiment and I will be looking for time points of when expression begins and progresses towards its maximum. </p>
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<ul>
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<li>Plated ESAI at 1:55 pm</li>
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<li>Plated LuxI at 2:00 pm </li>
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<li>Putting in Incubator at 2:20 pm till I leave the lab which should be around 5 pm. </li>
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<li>There may be an issue with the plates as the 2620 is auto-inducing </li>
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<li>Because 2620 was auto-inducing (and LUX was already induced.. possible auto-inducing also) I took another image at 5:22 pm and left the plates in the imaging device in order to gather 50 images over the course of 12.5 hours to see if the LUX/ESA/2620 will have a trend of induction at room temperature. While this will not show us the change from non-induced to induced and beyond... It will show us a possible trend of induction from where they started at 5:22pm on 7-20-17</li>
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</ul>
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Revision as of 21:37, 28 October 2017