User:Keyun Wang/Notebook/Experimental Biological Chemistry I/2013/04/16

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  • Start an 8-day study on silver leaching in liquid environment.
  • Start an 8-day study on cell growth in media containing silver films for 2, 4, 6, and 8 days.


  • Silver-incorporated film was dried over the fume hood and was ready to be tested.
  • Five 0.5g films were cut out from the dried film, all in circular shape.
  • Four of those films were used in the 8-day cell growth test. One last film was used in the 8-day silver leaching study.
  • Each of the four films were placed in each 125ml Erlenmeyer flasks containing sterile 50mL LB.
  • The above procedures were repeated for control films containing laponite and poly(lactic) acid only. This control film was made on 04/02/2013
  • The above procedures were also repeated for controls containing no films in media.
  • All flasks were placed inside a draw to avoid light from causing oxidation of silver in media.