Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Dependence of the osmotic pressure of a DNA gel (cross-linked at 3% w/w) in equilibrium with salt solutions as a function of polymer volume fraction. For each curve, the ionic composition of the salt solution is constant. (○):10 mM NaCl ; (●): 40 mM NaCl; (+): 100 mM NaCl; (● ): 0 mM NaCl + 0.05 mM CaCl2; (●): 40 mM NaCl + 0.10 mM CaCl2; (●): 40 mM NaCl + 0.20 mM CaCl2. Continuous lines are fits to eq 9.
