User:Madeleine Y. Bee/Notebook/Single Molecule Fluorescence/2013/10/16

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October 16, 2013


  • Dissolve ZnPPIX made 10/09/13 in DMF
  • Filter ZnPPIX solution to remove any more zinc or porphyrin impurities
  • Allow to dry overnight


  • 0.0146g ZnPPIX dissolved in 13mL DMF
  • MW ZnPPIX: 626.032g/mol


  • ε412 ZnPPIX in phosphate buffer: 87.4mM/cm
    • (from "Metal and redox selectivity of protoporphyrin binding to the heme chaperone CcmE")


Next week:

  • Re-dissolve ZnPPIX in DMF
  • Prepared several dilutions (100x, 1000x, 10000x?)
  • Take UV-vis measurements
  • Use Beer's law to determine concentration