User:Michael F. Nagle/Notebook/Chem 571/2012/11/28

From OpenWetWare
< User:Michael F. Nagle‎ | Notebook‎ | Chem 571‎ | 2012‎ | 11
Revision as of 05:31, 7 December 2012 by Michael F. Nagle (talk | contribs) (Discussion)
Jump to: navigation, search
Owwnotebook icon.png Project name <html><img src="/images/9/94/Report.png" border="0" /></html> Main project page
<html><img src="/images/c/c3/Resultset_previous.png" border="0" /></html>Previous entry<html>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</html>Next entry<html><img src="/images/5/5c/Resultset_next.png" border="0" /></html>


  • Analyze post-dialysis 25-200 [Au/ADA] solutions with UV/Vis
  • Prepare new solutions at narrower mole ratio range that includes optimal range for dissolution of AuNPs.


  • Au/ADA solutions prepared yesterday were analyzed via UV/Vis.
  • A new set of solutions was prepared at mole ratios 6.7, 10, 13.3, 16.7, 20, 23.3, 26.7, 30, 33.3, 36.7 and 40 [Au/ADA] and heated at 85oC overnight.
  • Puja Mody and Mary Mendoza resuspended Au/ADA fibers with varying concentrations of pH 9.99 tris buffer.




  • The 25 [Au/ADA] solution was purple, indicating AuNPs in solution, so we were suprised not to see a peak at 528nm. It may be due to experimental error or may have something to do with the fact a Shimadzu UV-1800 was used instead of a UV-2550 like usual.
  • The other group saw peaks at the start of their range, which went from 60-160.
  • Since the other group saw small peaks at the lower end of their range, with the highest at 60 [Au/ADA], and we saw purple solution at 25 [Au/ADA], we decided to make a new set with mole ratios 6.7-40.