User:Javier Vinals Camallonga/Notebook/Javier Vinals notebook/2014/03/05

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''figure 2. Atomic Absorbance of BSA with MgCl2 added before being heated''
''figure 2. Atomic Absorbance of BSA with MgCl2 added before being heated''
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[[Image:BSA with MgCL2 Javier Vinals Camallonga.png]]
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Revision as of 13:45, 21 March 2014

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Objective

Today we'll be calculating the equilibrium constants for heated 30:1 lysozyme AuNPs with variables added after baking, and room temperature 30:1 lysozyme AuNPs. Then we will make standards with the amount of gold per 5mL tube to run AA and UV-Vis. Then we will centrifuge the samples from yesterday, and run AA and UV-Vis on centrifuged samples.

Procedure

Atomic Absorption

Creating the Gold Stock Solutions

  1. Add 50 μL of HAuCl4·3H2O and 4950 μL of distilled water to a Falcon tube, for a final concentration of 10 μg/mL Au.
  2. Add 100 μL of HAuCl4·3H2O and 4900 μL of distilled water to a Falcon tube, for a final concentration of 20 μg/mL Au.
  3. Add 150 μL of HAuCl4·3H2O and 4850 μL of distilled water to a Falcon tube, for a final concentration of 30 μg/mL Au.
  4. Add 200 μL of HAuCl4·3H2O and 4800 μL of distilled water to a Falcon tube, for a final concentration of 40 μg/mL Au.
  5. Add 250 μL of HAuCl4·3H2O and 4750 μL of distilled water to a Falcon tube, for a final concentration of 50 μg/mL Au.
  6. A sixth stock solution of gold was created with 448 μL of HAuCl4·3H2O and 4552 μL of distilled water to a Falcon tube. This resulting concentration represents the amount of gold in a 5 mL sample of lysozyme-AuNP.


Atomic Absorption Samples

The following samples were run on the AA:

  • 30:1 lysozyme-AuNP with NaCl, KCl, MgCl2, CaCl2, 2,2 bipyridine, MES, citric acid
  • 60:1, 70:1, 80:1, 90:1, 100:1 BSA-AuNP with MgCl2
  • Gold solution in 5 mL sample of lysozyme-AuNP
  • Control of 30:1 lysozyme-AuNP without any added variable

Figures

After running Atomic Absorbance, we performed data analysis on the results.

Figure 1. Atomic absorbance of Lysozyme with different concentrations of variables

figure 2. Atomic Absorbance of BSA with MgCl2 added before being heated

Image:BSA with MgCL2 Javier Vinals Camallonga.png


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