GMU:DIY Bio: doing things with biology/Antje Danz: Difference between revisions

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=====''Gallery''=====
=====''Gallery''=====
<gallery mode="nolines">
<gallery mode="nolines">
File:Tag 7_cat.jpg| '''Cat fur and outside nose'''
File:Tag 7_cat.jpg|''Cat fur and outside nose''
File:Tag 7_coin.jpg| '''1 Euro cent'''
File:Tag 7_coin.jpg|''1 Euro cent''
</gallery>
</gallery>


<gallery class="left" mode="nolines" widths="250" heights="150">
<gallery class="left" mode="nolines" widths="250" heights="150">
Image:Tag 7_Nährmedium.jpg|'''Day 7 - Full dish'''
Image:Tag 7_Nährmedium.jpg|''Day 7 - Full dish''
</gallery>
</gallery>


<gallery mode="nolines">
<gallery mode="nolines">
File:Tag 7_nose.jpg|'''Human nose inside'''
File:Tag 7_nose.jpg|''Human nose inside''
File:Tag 7_fridge.jpg|'''glass surface fridge'''
File:Tag 7_fridge.jpg|''glass surface fridge''
</gallery>
</gallery>



Revision as of 12:35, 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
  • adding some filters to increase contrast und depth

2nd class: 23. October 2018

Summary