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===''First culture medium''=== | ===''First culture medium''=== | ||
As described obove the filled petri dishes are no beeing observed for the following days. | As described obove the filled petri dishes are no beeing observed for the following days. | ||
====''Gallery''==== | ===='''''Gallery'''''==== | ||
<gallery> | <gallery> | ||
File:petrischale mit Nährmedium.jpg|''Day 1'' | File:petrischale mit Nährmedium.jpg|''Day 1'' |
Revision as of 12:42, 22 October 2018
1st class: 16. Oktober 2018
Summary
Preparing the first testing Agar-Plates for bacterial growth in a petri dish:
- petri dishes where filled with 15 ml of an LBP Medium with Agar Agar
- cooling down
- inoculateing with different surface smear
- In my case: human nose (inside), cat nose (outside) and fur, fridge glass surface and 1 cent coin
- left with room temperature for the following days
First culture medium
As described obove the filled petri dishes are no beeing observed for the following days.
Gallery
breeding day 7 - closer look
Somehow I got the impression that the petri dishes weren't sterile as after 7 days almost the full dish is covered with a white film. You can only guess by slightly different colors where I initially inoculated the dish. Something seems to grow over the originally inoculated sections. See below some close ups. In the section of the example I took from my nose, a small yellow dot appears. I think this is what was intended to be growing. The rest just looks almost the same.
Gallery
DIY Microscope Test
What was done?
- extracted converging lens from a laser pointer
- attached to iPhone SE back camera
Results
- adding some filters to increase contrast und depth