User:Anh Do/Notebook/CHEM 471/2018/02/07

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Objectives

  • Take down observations for AuNPs solutions made yesterday
  • Measure pH for each AuNP solution
  • Run UV-Vis for each AuNP solution

Observations

  • Photos of AuNP solutions can be found here
  • Most amino acids form AuNPs, except for Cysteine and Methionine. This is expected as it agreed to our previous results.
  • Proline, Alanine, Valine, Phenylalanine, Serine, Aspartic Acid, Tryptophan, Leucine formed AuNPs that was suspended in solution
  • Tryptophan formed gold nano fibers
  • The rest of the AuNPs crushed out of solution, forming grey colors, or greyish black precipitates at the bottom of the test tube.

Data

  • To be updated