Hydration kinetics of oriented lipid membranes investigated by energy dispersive x-ray diffraction

Caracciolo, Giulio; Sadun, Claudia; Caminiti, Ruggero
August 2004
Applied Physics Letters;8/30/2004, Vol. 85 Issue 9, p1630
Academic Journal
Energy dispersive x-ray diffraction was applied to investigate the hydration kinetics of highly aligned 1,2-dioleoyl-3-trimethylammonium-propane membrane system. First, the adsorption of water into the lipid film results in a continous gain of interbilayer spatial coherence until a maximum is reached. Further, adsorbed water molecules behave as bulk water promoting loss of spatial coherence and leading to a progressive lowering and broadening of diffraction peaks. The possible molecular origin of this phenomenon is discussed.


Related Articles

  • Effect of hydration on the structure of oriented lipid membranes investigated by in situ time-resolved energy dispersive x-ray diffraction. Caminiti, Ruggero; Caracciolo, Giulio; Pisani, Michela // Applied Physics Letters;6/20/2005, Vol. 86 Issue 25, p253902 

    In situ time-resolved energy dispersive x-ray diffraction (EDXD) was applied to investigate the effect of hydration on the structure of 1,2-dioleoyl-3-trimethylammonium-propane (DOTAP)-oriented membranes. The measurements allowed a very high density time sampling of the evolution of the...

  • Small Angle X-ray Diffraction Study on DOPC+DOPE Liposomes containing Long 1-Alkanols. Klacsová, Mária; Karlovská, Janka; Funari, Sergio S.; Balgavý, Pavol // AIP Conference Proceedings;1/5/2010, Vol. 1204 Issue 1, p231 

    The effect of 1-alkanols (abbreviation CnOH, n = 8–18 is the even number of alkyl carbons) on the transition from lamellar Lα to inverted hexagonal HII phase of multilamellar dioleylphosphatidylcholine (DOPC)+dioleylphosphatidylethanolamine (DOPE) vesicles at full hydration was studied...

  • Hard X-Ray Phase Contrast Imaging of Black Lipid Membranes. Beerlink, A.; Mell, M.; Tolkiehn, M.; Salditt, T. // AIP Conference Proceedings;4/15/2010, Vol. 1236 Issue 1, p220 

    We image black lipid membranes based on hard x-ray Fresnel diffraction, with phase contrast arising from free space propagation of the beam traversing the sample. We show that for the studied membranes a simplified but extendable model can be used to quantitatively monitor the thickness and its...

  • Sample cell capable of 100% relative humidity suitable for x-ray diffraction of aligned lipid multibilayers. Katsaras, J.; Watson, M. J.; Watson, M.J. // Review of Scientific Instruments;Apr2000, Vol. 71 Issue 4 

    We describe a sample cell capable of attaining 100% relative humidity that is suitable for the study of aligned lipid multibilayers using x-ray diffraction. The basic principles of this cell are applicable to sample environments used in a variety of physical techniques (e.g., nuclear magnetic...

  • X-Ray Diffraction Analysis on the Effect of Silica Fume and Water in Blended Cement Paste. Veluchamy, P.; Barathan, S.; Sivakumar, G.; Anandhan, N. // International Journal of Applied Engineering Research;2009, Vol. 4 Issue 11, p2369 

    The hydration kinetics of ordinary Portland cement (OPC) and silica fume (SF) blended cement paste with distilled and effluent water were studied using X-ray diffraction spectra. The observed XRD patterns confirm the main phases of anhydrous and hydrated samples and also identify the brucite...

  • Effect of nitrogen atom substitution in cyclic guests on properties of structure H clathrate hydrates. Kazuki Imasato; Kotaro Murayama; Satoshi Takeya; Saman Alavi; Ryo Ohmura // Canadian Journal of Chemistry;Aug2015, Vol. 93 Issue 8, p906 

    The effect of substituting nitrogen heteroatoms in the cyclohexane ring of methylcyclohexane on the structure and guest dynamics of structure H (sH) clathrate hydrates with methane help gases are studied through experimental synthesis, powder X-ray diffraction (PXRD) measurements, and classical...

  • Synthesis of 4,7,13,16,21,24-hexaoxa-1,10-diazoniabicyclo[8.8.8]hexacosane Dinitrate Hydrate and Its Disordered Crystal Structure. Chekhlov, A. // Russian Journal of General Chemistry;Nov2005, Vol. 75 Issue 11, p1798 

    4,7,13,16,21,24-Hexaoxa-1,10-diazoniabicyclo[8.8.8]hexacosane dinitrate hydrate [H2(Crypt-222)]2+â‹…2NOâ‹…H2O is prepared as a crystalline salt and studied by single crystal X-ray diffraction. In its crystal structure the 2,2,2-cryptand dication is disordered and has two different...

  • Novel results on structural investigations of natural minerals of clathrate hydrates. Yousuf, M.; Qadri, S. B.; Knies, D. J.; Grabowski, K. S.; Coffin, R. B.; Pohlman, J. W. // Applied Physics A: Materials Science & Processing;2004, Vol. 78 Issue 6, p925 

    High-resolution powder X-ray diffraction measurements were carried out on gas hydrates in the angle-dispersive mode using a synchrotron radiation source. In contrast to the structural studies of laboratory-grown gas hydrates, this study has been performed on naturally grown clathrate hydrates...

  • Small Angle X-ray Diffraction Study of DNA—Cationic Liposomes Aggregates. Pullmannová, Petra; Uhríková, Daniela; Funari, Sergio S.; Lacko, Ivan; Devínsky, Ferdinand; Balgavý, Pavol // AIP Conference Proceedings;1/5/2010, Vol. 1204 Issue 1, p234 

    The microstructure of DNA—dioleoylphosphatidylethanolamine (DOPE)—propane-1,3-diyl-bis(dodecyldimethylammonium bromide) (C3GS12) aggregates as a function of the C3GS12:DOPE molar ratio and temperature was investigated using small angle X-ray diffraction. At 20° C, we observe a...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics