User:Allison K. Alix/Notebook/Thesis Research/2013/07/16: Difference between revisions

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See [[Image:2013_0715_AuNP-DNA.xlsx‎]] for AuNP/DNA spectra as well as absorbance values and molar extinction coefficients used to calculate concentrations of each in final solutions.
See [[Image:2013_0715_AuNP-DNA.xlsx‎]] for AuNP/DNA spectra as well as absorbance values and molar extinction coefficients used to calculate concentrations of each in final solutions.
'''Calculating the surface area of 1 AuNP'''
Surface Area of a sphere = 4πr<sup>2</sup>, r = 5nm
4π(5x10<sup>-9</sup>m)<sup>2</sup> = 3.14 x 10<sup>-16</sup>m<sup>2</sup> = 314nm<sup>2</sup>





Revision as of 11:06, 16 July 2013

UV-Vis Analysis/Silica Coating Pt. 2 <html><img src="/images/9/94/Report.png" border="0" /></html> Main project page
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To Do

  • Continue with Silica Coating Procedure
  • Analyze UV-Vis Data from AuNP/DNA attachment performed yesterday

Silica Coating Procedure

1) Prepare the following solutions:

  • 1mL AuNP & MHA solution/20μL TES/0.125mL NH4OH/5mL propanol
  • 1mL AuNP & MHA solution/15μL TES/0.125mL NH4OH/5mL propanol
  • 1mL AuNP & MHA solution/10μL TES/0.125mL NH4OH/5mL propanol
  • 1mL AuNP & MHA solution/5μL TES/0.125mL NH4OH/5mL propanol


2) Stir solutions for one hour to allow reaction to proceed

3) Centrifuge solutions at 4000 rpm for one hour

4) Re-suspend particles in PBS to a final concentration of 5nM?

UV-Vis Data Analysis

See File:2013 0715 AuNP-DNA.xlsx for AuNP/DNA spectra as well as absorbance values and molar extinction coefficients used to calculate concentrations of each in final solutions.

Calculating the surface area of 1 AuNP

Surface Area of a sphere = 4πr2, r = 5nm

4π(5x10-9m)2 = 3.14 x 10-16m2 = 314nm2