Team:Groningen/Template/MODULE/Notebook/bandage/week15

From 2014.igem.org

(Difference between revisions)
 
(4 intermediate revisions not shown)
Line 18: Line 18:
<div class="text">
<div class="text">
-
The freeze dried cells made last week were used to prepare several gels for microscopy. From literature we found out that the pore size of a polyacrylamide gel of 2.5 % is approximately 200 nm and the pore size of a 10,5% gel is approximately 20 nm<sup>1</sup>
+
The freeze dried cells, which were made previous week were used to prepare several gels for microscopy, the pore size of a polyacrylamide gel with a percentage of 2.5 % is approximately 200 nm and the pore size of a 10,5% gel is approximately 20 nm<sup>1</sup>
</div>
</div>
Line 27: Line 27:
<div class="text">
<div class="text">
-
Also we found that the pore size of a 1.5% low melting point (LMP)agarose corresponds to a pore size of around 150 nm<sup>2</sup> as can be seen in figure 6. A <i>L. lactis</i> cell varies between sizes of 500nm up to 1500nm<sup>3</sup>
+
The pore size of 1.5% low melting point (LMP)agarose is around 150 nm<sup>2</sup> as can be seen in figure 6. A <i>L. lactis</i> cell varies between sizes of 500nm up to 1500nm<sup>3</sup>
</div>
</div>
Line 34: Line 34:
<!-- FIGURE SNIPPET OPTIONAL START -->
<!-- FIGURE SNIPPET OPTIONAL START -->
-
</html>{{:Team:Groningen/Template/MODULE/newfigure|Figure 5|1/11/Staphilococcus_combat_system.art.png|
+
</html>{{:Team:Groningen/Template/MODULE/newfigure|Figure 6|a/a8/Figuur_6_materials_.png|
-
Figuur 5 van Anna
+
Pore sizes of LMP agarose gels in relation to the concentration of agarose added to the final volume<sup>2</sup>
}}<html>
}}<html>
<!-- FIGURE SNIPPET OPTIONAL END-->
<!-- FIGURE SNIPPET OPTIONAL END-->
Line 42: Line 42:
<div class="text">
<div class="text">
-
For these reasons we attempted to grow the <i>L. lactis</i> cells in a 2.5% polyacrylamide gel, a 5% acrylamide gel, a 1.5% LMP agarose gel and on the surface of a 5% polyacrylamide gel.  
+
For these reasons we attempted to grow the <i>L. lactis</i> cells in a 2.5% polyacrylamide gel, a 5% acrylamide gel, a 1.5% LMP agarose gel and on the surface of a 5% polyacrylamide gel.
</div>
</div>
Line 51: Line 51:
<div class="text">
<div class="text">
-
Half an hour in advance of making the gel the cells were induced with nisin to start the GFP production. In this way we could find out whether the cells were still viable after polymerization of the gel they were poured in.
+
Half an hour in advance of making the gel, the cells were induced with nisin to start the GFP production, this way we could find out whether the cells were still viable after polymerization of the gel they were put in
</div>
</div>
Line 60: Line 60:
<div class="text">
<div class="text">
-
The gels were observed and followed using a widefield (confocal) microscope. So far we can prove the cells are able to grow on top of a 1.5% LMP agarose gel as well as inside a 1.5% LMP agarose gel, results are shown in figure 6
+
The gels were observed and followed using a widefield (confocal) microscope, so far we can prove the cells are able to grow on top of a 1.5% LMP agarose gel as well as inside a 1.5% LMP agarose gel, the results are shown in figure 7
</div>
</div>
Line 67: Line 67:
<!-- FIGURE SNIPPET OPTIONAL START -->
<!-- FIGURE SNIPPET OPTIONAL START -->
-
</html>{{:Team:Groningen/Template/MODULE/newfigure|Figure 6|1/11/Staphilococcus_combat_system.art.png|
+
</html>{{:Team:Groningen/Template/MODULE/newfigure|Figure 7|5/5d/Figure_6_materials.jpg|
-
Figuur 6 van Anna
+
Cel growth inside the gel. A. After 30 minutes incubation B. After 60 minutes incubation and C. After 90 minutes incubation. And cel growth on top of the gel. D. After 30 minutes incubation E. After 60 minutes incubation and F. After 90 minutes incubation
}}<html>
}}<html>
<!-- FIGURE SNIPPET OPTIONAL END-->
<!-- FIGURE SNIPPET OPTIONAL END-->
Line 75: Line 75:
<div class="text">
<div class="text">
-
The slides were then incubated overnigtht at 30 C, to check for significant differences in growth see figure 7
+
The gel slides were then incubated overnigtht at 30 °C, to check for significant differences in growth see figure 8
</div>
</div>
Line 82: Line 82:
<!-- FIGURE SNIPPET OPTIONAL START -->
<!-- FIGURE SNIPPET OPTIONAL START -->
-
</html>{{:Team:Groningen/Template/MODULE/newfigure|Figure 7|1/11/Staphilococcus_combat_system.art.png|
+
</html>{{:Team:Groningen/Template/MODULE/newfigure|Figure 8|1/11/Figure_8_materials.jpg|
-
Figuur 7 van Anna
+
Growth after overnight incubation at 30 C. A,B. Cells poured inside the gel. C,D. Cells on top of the gel.
 +
 
}}<html>
}}<html>
<!-- FIGURE SNIPPET OPTIONAL END-->
<!-- FIGURE SNIPPET OPTIONAL END-->
Line 90: Line 91:
<div class="text">
<div class="text">
-
Ultimately it would be the best to prove the ability of <i>L. lactis</i> to grow inside a gel, by making a time lapse of the growth inside a polyacrylamide gel, but for now this will remain a future prospect.
+
Ultimately it would be the best to prove the ability of <i>L. lactis</i> to grow inside a gel, by making a time lapse of the growth inside a polyacrylamide gel, but for now this will remain a future prospect
</div>
</div>

Latest revision as of 03:40, 18 October 2014

October 13 - 19 October
 
The freeze dried cells, which were made previous week were used to prepare several gels for microscopy, the pore size of a polyacrylamide gel with a percentage of 2.5 % is approximately 200 nm and the pore size of a 10,5% gel is approximately 20 nm1
 
The pore size of 1.5% low melting point (LMP)agarose is around 150 nm2 as can be seen in figure 6. A L. lactis cell varies between sizes of 500nm up to 1500nm3
 
Figure 6
 
Figure 6: Pore sizes of LMP agarose gels in relation to the concentration of agarose added to the final volume2
 
 
For these reasons we attempted to grow the L. lactis cells in a 2.5% polyacrylamide gel, a 5% acrylamide gel, a 1.5% LMP agarose gel and on the surface of a 5% polyacrylamide gel.
 
Half an hour in advance of making the gel, the cells were induced with nisin to start the GFP production, this way we could find out whether the cells were still viable after polymerization of the gel they were put in
 
The gels were observed and followed using a widefield (confocal) microscope, so far we can prove the cells are able to grow on top of a 1.5% LMP agarose gel as well as inside a 1.5% LMP agarose gel, the results are shown in figure 7
 
Figure 7
 
Figure 7: Cel growth inside the gel. A. After 30 minutes incubation B. After 60 minutes incubation and C. After 90 minutes incubation. And cel growth on top of the gel. D. After 30 minutes incubation E. After 60 minutes incubation and F. After 90 minutes incubation
 
 
The gel slides were then incubated overnigtht at 30 °C, to check for significant differences in growth see figure 8
 
Figure 8
 
Figure 8: Growth after overnight incubation at 30 C. A,B. Cells poured inside the gel. C,D. Cells on top of the gel.

 
 
Ultimately it would be the best to prove the ability of L. lactis to grow inside a gel, by making a time lapse of the growth inside a polyacrylamide gel, but for now this will remain a future prospect
 
 
 
 

Retrieved from "http://2014.igem.org/Team:Groningen/Template/MODULE/Notebook/bandage/week15"