User:Douglas M. Fox/Notebook/AU CHEM-571 F2011 Lab Support/2017/10/17

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Tasklist

  1. Prepare reducing agent stock solutions
    • 5 - 10 mL of 100 mM each
    • fructose, galactose, sucrose, Na3Ct, H2Asc
    • For chitosan (168 g/mol), prepare 10 mL 50 mM. Add 4.75 mL HCl per g of chitosan or 0.265 mL HAc per g of chitosan
    • For cellulose nanocrystals, use a 4% solution
    • 1 mg NaBH4 in 20 mL ice cold H2O. Do NOT cap!!
  2. AuNP for 100 mM stock solutions
    • 0.1 mL 10 mM HAuCl4 + 0.1 mL 100 mM reducing agent + 3.8 mL H2O
    • For cellulose, add 0.1 mL 10 mM HAuCl4 to 3.9 mL cellulose
    • 0.2 mL 10 mM HAuCl4 + 3.8 mL NaBH4
    • Place test tubes in water bath (600 mL beaker) at 80 C until color changes (~30 min)
  3. Measure UV-VIS of your solutions