User:Puja Mody/Notebook/Magnetite Shenanigans/2014/10/14

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Stir method

  • The synthesis method that was done on 10/8 was repeated.
  • From doing microscope analysis, it looks as though at 150 minutes, the hydrogels are aggregating together(clumping) as a result, it seems that synthesis for 4 hours may be unnecessary. Tomorrow, synthesis will be done using the same method but for 105 minutes and samples will be removed every 15 minutes. (total of 7 points of analysis 14 collected samples).

Dye Synthesis

  • The method for dye removal and analysis previously used has not resulted in any definitive results. The issue being that when the hydrogels are washed with water and centrifuged, the dye is coming out and therefore, it is difficult to assess how much dye was originally in the hydrogels and how much was removed as a result of magnetic presence.
  • As a result, new dye addition samples will be made but with the addition of gold (Chlorauric Acid-- HAuCl4.

The following stock solutions were made today.

Hemeoglobin Stock solution

Preparation of hemoglobin Stock solution '
Molecular weight (g/mol) 64500
mass hemglobin (g) 0.0995
volume solution (L) 0.1
Concentration (M) 1.54264E-05

Gold Stock solution Preparation gold stock Molecular weight Au (g/mol) 393.83 mass Au(g) 0.01446 volume stock(L) 0.01 Concentration (M) 0.003671635



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