User:Allison K. Alix/Notebook/Thesis Research/2013/07/19: Difference between revisions
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2) Add 0.5 mL of HAuCl4 solution (1% w/v) | 2) Add 0.5 mL of HAuCl4 solution (1% w/v) | ||
*1% w/v = (0.02g in 2mL water) | |||
3) Follow with 1.75 mL of sodium citrate solution (1% w/v) | 3) Follow with 1.75 mL of sodium citrate solution (1% w/v) | ||
Revision as of 06:53, 19 July 2013
 Synthesis of AuNP
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AuNP synthesis procedures
Procedure 1 Taken from User:Allison K. Alix/Notebook/Thesis Research/2013/05/10 1) Stir and heat to boiling 20mL of 1mM HAuCl4 2) Add 2mL 1% sodium citrate 3) Observe a purple to red color change 4) Determine size and concentration of AuNP using UV-Vis Procedure 2[1] 1) Boil 50mL MilliQ water in a clean beaker 2) Add 0.5 mL of HAuCl4 solution (1% w/v)
3) Follow with 1.75 mL of sodium citrate solution (1% w/v) 4) Boil for about 10 minutes until solution color changes to bright red 5) Replace water lost to evaporation during boiling 6) If a higher concentration is desired, centrifuge at 14 000 rpm and resuspended in MilliQ water Procedure 3[2] 1) Bring 100 mL of solution containing 0.01 g of HAuCl4·3H2O to reflux 2) Add 3 mL of 1% sodium citrate solution while stirring 3) Boil solution for another 40 minutes 4) Cool to room temperature
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