Feb 20- Bacteria and Strength
Objectives
- Bacterial Inactivation Evaluation in the Dark
- Agar Plates
- Saline Solution
- Synthesize coatings for the metal strength test
- Analysis of XRD molds
Bacterial Inactivation Evaluation in the Dark
- the tubes containing the bacteria and broth were cloudy, confirming the growth of the bacteria
- Clean a TiO2/Epoxy film and an Epoxy film with ethanol to kill all bacteria
- Wash the TiO2/Epoxy film a few times to clean any TiO2 from the surface
- Clean lab tweezers with ethanol as well.
- prepare two petri dishes for the films
- Make sure the film are dried out of the ethanol before placing them in the petri dish
- Vortex the broth/bacteria tubes
- Pipette 600 micro liter of the bacteria/broth solution onto the film
- try to even out the surface as much as you can
- Cover the petri dish so no evaporation occurs
- Place in drawer
Recipe for Agar Plates
- Add 3g of tryptone, 1.5 g of yeast, 3 g of NaCl, and 4.5 g of Agar to 300 mL of water
- Autoclave
Saline Solution Recipe
- 12.5 g of NaCl in 500 mL of water
- autoclave
Strength test
- The coatings were prepped using half of the amount of weight as normal so that we would have a smaller amount.
- After mixing a portion was spread onto the bottom piece of metal and covered with the top piece of metal
- Metal pieces were left to stand until next class to be cured.
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