X-ray synchrotron study of packing and protrusions of polymer - Lipid monolayers at the air-water interference

Journal of the American Chemical Society

Volumn 120, Issue 7, 1998, Pages 1469-1473

  Majewski, J ^a   Kuhl, T L ^b   Kjaer, K ^c   Gerstenberg, M C ^c   Als Nielsen, J ^d   Israelachvili, J N ^b   Smith, G S ^a  

^a LOS ALAMOS NATIONAL LABORATORY   (United States)

^b UNIVERSITY OF CALIFORNIA   (United States)

^c TECHNICAL UNIVERSITY OF DENMARK   (Denmark)

^d UNIVERSITY OF COPENHAGEN   (Denmark)

Author keywords

[No Author keywords available]

Indexed keywords

LIPIDS; MACROMOLECULES; MONOLAYERS; PHASE INTERFACES; SURFACE ROUGHNESS; X RAY ANALYSIS;

BRAGG SCATTERING; HYDROPHILIC POLYMER CHAINS; PHOSPHOLIPIDS; X RAY SCATTERING;

MOLECULAR STRUCTURE;

LIPID; POLYMER; WATER;

AIR; ARTICLE; HYDRATION; LIPID MONOLAYER; SYNCHROTRON; X RAY;

EID: 0032564926     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja973024n     Document Type: Article

References (37)

1. Als-Nielsen, J.; Jacquemain, D.; Kjaer, K.; Lahav, M.; Leveiller, F.; Leiserowitz, L. Phys. Rep. 1994, 246, 251. Als-Nielsen, J.; Kjaer, K. X-ray Reflectivity and Diffraction Studies of Liquid Surfaces and Surfactant Monolayers. In The Proceedings of the NATO Advanced Study Institute, Phase Transitions in Soft Condensed Matter, Riste, T., Sherrngton, D.; Ed.; Geilo, Norway, April 4-14, 1989; Plenum Publishing Corp.: New York, 1989; pp 113-137. Kjaer, K. Physica B 1994, 198, 100. Proceedings of the 3rd International Conference on Surface X-ray and Neutron Scattering, Dubna, Russia, June 24-29, 1993.
2. Als-Nielsen, J.; Jacquemain, D.; Kjaer, K.; Lahav, M.; Leveiller, F.; Leiserowitz, L. Phys. Rep. 1994, 246, 251. Als-Nielsen, J.; Kjaer, K. X-ray Reflectivity and Diffraction Studies of Liquid Surfaces and Surfactant Monolayers. In The Proceedings of the NATO Advanced Study Institute, Phase Transitions in Soft Condensed Matter, Riste, T., Sherrngton, D.; Ed.; Geilo, Norway, April 4-14, 1989; Plenum Publishing Corp.: New York, 1989; pp 113-137. Kjaer, K. Physica B 1994, 198, 100. Proceedings of the 3rd International Conference on Surface X-ray and Neutron Scattering, Dubna, Russia, June 24-29, 1993.
3. Als-Nielsen, J.; Jacquemain, D.; Kjaer, K.; Lahav, M.; Leveiller, F.; Leiserowitz, L. Phys. Rep. 1994, 246, 251. Als-Nielsen, J.; Kjaer, K. X-ray Reflectivity and Diffraction Studies of Liquid Surfaces and Surfactant Monolayers. In The Proceedings of the NATO Advanced Study Institute, Phase Transitions in Soft Condensed Matter, Riste, T., Sherrngton, D.; Ed.; Geilo, Norway, April 4-14, 1989; Plenum Publishing Corp.: New York, 1989; pp 113-137. Kjaer, K. Physica B 1994, 198, 100. Proceedings of the 3rd International Conference on Surface X-ray and Neutron Scattering, Dubna, Russia, June 24-29, 1993.
4. Als-Nielsen, J.; Jacquemain, D.; Kjaer, K.; Lahav, M.; Leveiller, F.; Leiserowitz, L. Phys. Rep. 1994, 246, 251. Als-Nielsen, J.; Kjaer, K. X-ray Reflectivity and Diffraction Studies of Liquid Surfaces and Surfactant Monolayers. In The Proceedings of the NATO Advanced Study Institute, Phase Transitions in Soft Condensed Matter, Riste, T., Sherrngton, D.; Ed.; Geilo, Norway, April 4-14, 1989; Plenum Publishing Corp.: New York, 1989; pp 113-137. Kjaer, K. Physica B 1994, 198, 100. Proceedings of the 3rd International Conference on Surface X-ray and Neutron Scattering, Dubna, Russia, June 24-29, 1993.
5. Lasic, D., Martin, F., Eds. Stealth Liposomes; CRC Press: Boca Raton, 1995; p 289 for a complete review.
6. Kuhl, T.; Leckband, D.; Lasic, D.; Israelachvili, J. Biophys. J. 1994, 66, 1479.
7. Kenworthy, A. K.; Hristova, K.; Needham, D.; MeIntosh, T. J. Biophys. J. 1995, 68, 1921.
8. Leikin, S.; Parsegian, V. A.; Rau, D. C.; Rand, R. P. Annu. Rev. Phys. Chem. 1993, 44, 369. McIntosh, T. J.; Simon, S. A. Annu. Rev. Biophys. Biomol. Struct. 1994, 23, 27.
9. Leikin, S.; Parsegian, V. A.; Rau, D. C.; Rand, R. P. Annu. Rev. Phys. Chem. 1993, 44, 369. McIntosh, T. J.; Simon, S. A. Annu. Rev. Biophys. Biomol. Struct. 1994, 23, 27.
10. Israelachvili, J.; Wennerstrom, H. J. Phys. Chem. 1992, 96, 520. Wiener, M. C.; White, S. H. Biophys. J. 1992, 61, 434.
11. Israelachvili, J.; Wennerstrom, H. J. Phys. Chem. 1992, 96, 520. Wiener, M. C.; White, S. H. Biophys. J. 1992, 61, 434.
12. Naumann, C.; Brumm, T.; Rennie, A. R.; Penfold, J.; Bayerl, T. M. Langmuir 1995, 11, 3948. Naumann, C.; Dietrich, C.; Lu, J. R.; Thomas, R. K.; Rennie, A. R.; Penfold, J.; Bayerl, T. M. Langmuir 1994, 10, 1919.
13. Naumann, C.; Brumm, T.; Rennie, A. R.; Penfold, J.; Bayerl, T. M. Langmuir 1995, 11, 3948. Naumann, C.; Dietrich, C.; Lu, J. R.; Thomas, R. K.; Rennie, A. R.; Penfold, J.; Bayerl, T. M. Langmuir 1994, 10, 1919.
14. Cevc, G.; Hauser, M.; Kornyshev, A. A. Langmuir 1995, 11, 3103-3110. Cevc, G.; Hauser, M.; Kornyshev, A. A. Langmuir 1995, 11, 3111-3118.
15. Cevc, G.; Hauser, M.; Kornyshev, A. A. Langmuir 1995, 11, 3103-3110. Cevc, G.; Hauser, M.; Kornyshev, A. A. Langmuir 1995, 11, 3111-3118.
16. Kuhl, T. L.; Leckband, D. E.; Lasic, D. D.; Israelachvili, J. N. Modulation and modeling of interaction forces between lipid bilayer exposing terminally grafted polymer chains. In Stealth Liposomes; Lasic, D., Martin, F. Eds; CRC Press: Boca Raton, FL, 1995; pp 73-91. Majewski, J.; Kuhl, T. L.; Gerstenberg, M.; Israelachvili, J. N.; Smith, G. S. J. Phys. Chem. 1997, 101, 3122.
17. Kuhl, T. L.; Leckband, D. E.; Lasic, D. D.; Israelachvili, J. N. Modulation and modeling of interaction forces between lipid bilayer exposing terminally grafted polymer chains. In Stealth Liposomes; Lasic, D., Martin, F. Eds; CRC Press: Boca Raton, FL, 1995; pp 73-91. Majewski, J.; Kuhl, T. L.; Gerstenberg, M.; Israelachvili, J. N.; Smith, G. S. J. Phys. Chem. 1997, 101, 3122.
18. Szleifer, I.; Carignano, M. A. Tethered polymer layers. In Advances in Chemical Physics; Prigogine, I., Rice, S. A., Eds.; John Wiley and Sons: New York, 1996; Vol. XCIV, pp 165-259. Alexander, S. J. Phys. (Paris) 1977, 38, 983. de Gennes, P. G. Macromolecules 1980, 13, 1069. Milner, S.; Witten, T.; Cates, M. Macromolecules 1988, 21, 2610.
19. Szleifer, I.; Carignano, M. A. Tethered polymer layers. In Advances in Chemical Physics; Prigogine, I., Rice, S. A., Eds.; John Wiley and Sons: New York, 1996; Vol. XCIV, pp 165-259. Alexander, S. J. Phys. (Paris) 1977, 38, 983. de Gennes, P. G. Macromolecules 1980, 13, 1069. Milner, S.; Witten, T.; Cates, M. Macromolecules 1988, 21, 2610.
20. Szleifer, I.; Carignano, M. A. Tethered polymer layers. In Advances in Chemical Physics; Prigogine, I., Rice, S. A., Eds.; John Wiley and Sons: New York, 1996; Vol. XCIV, pp 165-259. Alexander, S. J. Phys. (Paris) 1977, 38, 983. de Gennes, P. G. Macromolecules 1980, 13, 1069. Milner, S.; Witten, T.; Cates, M. Macromolecules 1988, 21, 2610.
21. Szleifer, I.; Carignano, M. A. Tethered polymer layers. In Advances in Chemical Physics; Prigogine, I., Rice, S. A., Eds.; John Wiley and Sons: New York, 1996; Vol. XCIV, pp 165-259. Alexander, S. J. Phys. (Paris) 1977, 38, 983. de Gennes, P. G. Macromolecules 1980, 13, 1069. Milner, S.; Witten, T.; Cates, M. Macromolecules 1988, 21, 2610.
22. Majewski, J.; Popovitz-Biro, R.; Bouwman, W. G.; Kjaer, K.; Als-Nielsen, J.; Lahav, M.; Leiserowitz, L. Chemistry - A European Journal 1995, 1, 304.
23. c = 0.14°.
24. Eisenberger, P.; Marra, W. C. Phys. Rev. Lett. 1981, 46, 1081.
25. -12M), the monolayers were very stable (no loss of surface area) over the time course of the X-ray measurements.
26. hk, of all diffracting 2D crystallites over which "perfect" crystallinity extends.
27. z-resolved scans called Bragg rod profiles.
28. Kjaer, K.; Als-Nielsen, J.; Helm, C. A.; Laxhuber, L. A.; Möhwald, H. Phys. Rev. Lett. 1987, 58 (21), 2224. Helm, C. A.; Tippman-Krayer, P.; Möhwald, H.; Als-Nielsen, J.; Kjaer, K. Biophys. J. 1991, 60, 1457. Helm. C. A.; Möhwald, H.; Kjaer, K.; Als-Nielsen, J. Biophys. J. 1987, 52, 381.
29. Kjaer, K.; Als-Nielsen, J.; Helm, C. A.; Laxhuber, L. A.; Möhwald, H. Phys. Rev. Lett. 1987, 58 (21), 2224. Helm, C. A.; Tippman-Krayer, P.; Möhwald, H.; Als-Nielsen, J.; Kjaer, K. Biophys. J. 1991, 60, 1457. Helm. C. A.; Möhwald, H.; Kjaer, K.; Als-Nielsen, J. Biophys. J. 1987, 52, 381.
30. Kjaer, K.; Als-Nielsen, J.; Helm, C. A.; Laxhuber, L. A.; Möhwald, H. Phys. Rev. Lett. 1987, 58 (21), 2224. Helm, C. A.; Tippman-Krayer, P.; Möhwald, H.; Als-Nielsen, J.; Kjaer, K. Biophys. J. 1991, 60, 1457. Helm. C. A.; Möhwald, H.; Kjaer, K.; Als-Nielsen, J. Biophys. J. 1987, 52, 381.
31. It has been previously demonstrated that the polymer chains do not penetrate the monolayer, but extend away from the headgroup region into the subphase. Hence, only the presence of air in the tail region of the monolayer can account for its apparent decrease in the scattering density. In other words, a simple Gaussian smearing of the interface does not represent the staggered structure of the monolayer properly in our model.
32. -1).
33. Pedersen, J. S.; Hamley, I. W. J. Appl. Crystallogr. 1994, 27, 36.
34. 2 was minimized in a Marquardt-Levenburg nonlinear least-squares fitting routine to obtain the best fitting parameters.
35. The electron density of bulk PEG is only 6% higher than the water subphase.
36. Due to the weak contrast between the polymer and subphase, the 1.3% DSPE-PEG reflectivity data could be reasonably well fit with a simple box of constant e density to describe the polymer layer and thus was not sensitive to the functional form of the polymer profile. However, at 9.0% DSPE-PEG a simple box for the polymer did not fit the data, while a parabolic form did. Specifically, the polymer layer was modeled with a concave parabola with decreasing density from the monolayer interface.
37. Vineyard, G. Phys. Rev. B. 1982, 26, 4146.