The DNA2 concentration was then determined from the absorbance of the decomposed DNA-NP solution at 260 nm,
after subtracting the contributions from KAu(CN)2 and DNA1.
The indeterminate error associated with determining the percentage
of DNA1 in the ligand shell was 2.6%, which reflects
the variance between A260 DNA1 determined from UV-visible
vs. fluorescence spectroscopy.