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. Author manuscript; available in PMC: 2011 Jan 15.
Published in final edited form as: Biomacromolecules. 2010 Nov 10;11(12):3432–3439. doi: 10.1021/bm1009574

Figure 2.

Figure 2

The average size of PPA/DNA nanoparticles in DI water and in 0.15 m NaCl solution (a) and the change in particle size (N/P 10) to salt challenge as function of time (b). Nanoparticles were prepared from PPAs with different molecular weights or different net positive charge densities.