Distribution of water and alcohol in and around diyne phospholipid nanotubes
The formation of nanotubes from chiral molecules such as diyne phospholipids can be achieved in alcohol/water mixtures by either cooling from a vesicular state [1] or by fast addition of water to the alcoholic solution at room temperature [2]. The second method has proven to yield nanotubes of very well-defined radius, showing dozens of oscillations in SAXS. It is well established that solvent quality plays an important role for this system [3]. Hence, we propose to study the solvent distribution in and around the nanotube walls by employing different contrast conditions, thereby complementing experiments at ID02, ESRF. If the solvent composition is enriched in alcohol or water around the nanotubes, we expect to see effects on both the forward scattering intensity and the tube form factor in general. [1] Thomas B.N. et al., Science 267, 1635-1638 (1995) [2] Georger J.H. et al., J. Am. Chem. Soc. 109, 6169-6175 (1987) [3] Spector M.S. et al., J. Am. Chem. Soc. 119, 8533-8539 (1997)
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HOERMANN Anja; BAYER Sebastian; GRADZIELSKI Michael; HAYWARD Dominic; PRAUSE Albert and PREVOST Sylvain. (2019). Distribution of water and alcohol in and around diyne phospholipid nanotubes. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.9-10-1591
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