Table 1.
Osmolyte | ΔNw,total 20 °C | λ, Å 20 °C | ΔNw,total 5 °C | λ, Å 5 °C |
---|---|---|---|---|
Urea | 0 | - | 0 | - |
Glycerol | 9.7 | 3.25 | 20.3 | 3.45 |
Sorbitol | 19.8 | 2.9 | 32.7 | 3.5 |
TMAO | 14.7 | 2.2 | 17.5 | 1.95 |
Proline | 19.9 | 2.9 | 27.1 | 3.3 |
Glycine Betaine | 21.0 | 3.1 | 26.9 | 3.2 |
The total of excess water per glucose monomer is calculated by integrating the curves shown in Figure 2 from 12.6 Å to ∞ as prescribed in equation (3) assuming that Πexcess/Π0 = 1 is the maximum excess pressure. The error is ~10% for the decay length λ and ~15% for ΔNw.