Forschungszentrum Jülich
in der Helmholtz-Gemeinschaft

Institut für Festkörperforschung (IFF)



Dr. W. Sager

Project leader at IFF-Institute:  Soft Matter (Weiche Materie)

 


  Institut für Festkörperforschung
  Forschungszentrum Jülich GmbH
  D-52425 Jülich
  Deutschland

Phone: +49 2461 61 3146
Fax: +49 2461 61 2280
E-Mail: W.Sager@fz-juelich.de
W.Sager
Curriculum vitae Research Interests Selected Publications

 

Curriculum Vitae of W. Sager

Wiebke Sager who joined the group in April 2001 studied Chemistry at Christian- Albrechts-University in Kiel (Germany) and the University of Basel (Switzerland), where she graduated with a diploma degree in 1987. Continuing joining the group of Prof. H.-F. Eicke at the Institute of Physical Chemistry she received her Ph. D. in 1992 for a thesis on the "Characterisation of emulsions as precipitation media for colloidal ceramic particles".

As a post-doctoral associate she worked at the Institute of Physical Chemistry, University of Basel, on the characterization of colloidal oxide particles precipitated in emulsions using x-ray diffraction and atomic force microscopy and in the group of Prof. M. Kahlweit at the Max-Planck Institute for Biophysical Chemistry in Göttingen (Germany), investigating the influence of impurities on the phase behaviour of AOT microemulsions. Granted by a fellowship of the Swiss National Science Foundation /Royal Society, she started a study on the characterization of semifluorinated compounds at hydrocarbon/fluorocarbon interfaces in the Surfactant Science Group at the University of Hull (Prof. P.D.I. Fletcher/B.P. Binks). From 1994 she worked for 3 years on joined project on aggregation phenomena and the phase behaviour of water-in-oil microemulsions at the University of Leiden (The Netherlands) in collaboration with E.M. Blokhuis, G.J.M. Koper and Prof. D. Bedeaux. In 1997 she moved to the University of Twente (The Netherlands), where she set up a 4 years project on the preparation and characterisation of nanocrystalline ceramic coatings in the Inorganic Materials group of Prof. H. Verweij.

In 1998 she become assistant professor in the Membrane Technology group of the University of Twente, where she worked until March 2001 on fundamental materials aspects of membrane science. In 1999 she got awarded within the program of the Netherlands Science Foundation for Young Chemists with a 4 years Ph. D. project on "Precipitaion of nanostructured materials in selforganising systems". Her research interests lie in the field of selforganising systems and nanostructured materials.

 

Selected Publications of W.F.C. Sager

 

  1. F.C.M. Woudenberg, W.F.C. Sager, N.G.M. Sibelt and H. Verweij,
    "Dense Nanostructured t-ZrO2 Coatings at Low Temperatures via Modified Emulsion Precipitation",
    Adv. Mater. 2001, 13, 514-516.
  2. A. Figoli, W.F.C. Sager, and M.H.V. Mulder,
    "Micro-Encapsulated Liquid Membranes with Facilitated Transport Properties: A New Perspective in the Preparation of Oxygen-Enriched Air",
    J. Memb. Sci. 2001, 181, 97-110.
  3. D.I. Svergun, P.V. Konarev, V.V. Volkov, M.H.J. Koch, W.F.C. Sager, J. Smeets and E.M. Blokhuis,
    "A Small Angle X-Ray Scattering Study of the Droplet-Cylinder Transition in AOT Microemulsions",
    J. Chem. Phys. 2000, 113, 1651-1665.
  4. E.M. Blokhuis and W.F.C. Sager,
    "Vesicle Adhesion and Microemulsion Droplet Dimerization: Small Bending Rigidity Regime",
    J. Chem. Phys. 1999, 111, 7062-7074.
  5. E.M. Blokhuis and W.F.C. Sager,
    "Helfrich Free Energy for Aggregation and Adhesion",
    J. Chem. Phys.1999, 110, 3148-3152.
  6. W.F.C. Sager,
    "Systematic Study on the Influence of Impurities of the Phase Behaviour of Sodium Bis(2-ethylhexyl) Sulfosuccinate Microemulsions ",
    Langmuir 1998, 14, 6385-6395.
  7. Coediting of the Conference Proceedings of the 11th Conference of the European Colloid and Interface Society (ECIS97),
    Lunteren, The Netherlands, September 14-19, 1997;
    Progress of Colloid and Polymer Science 1998, 110.
  8. W.F.C. Sager,
    "ECIS 97- An Overview"
    Progr. Colloid Polym. Sci. 1998, 110, VI-IX.
  9. W.F.C. Sager and E.M. Blokhuis,
    "Curvature Energy for Droplet Dimerisation and Aggregation in Microemulsions",
    Progr. Colloid Polym. Sci. 1998, 110, 258-262.
  10. W.F.C. Sager,
    "Controlled Formation of Nanoparticles from Microemulsions",
    Review Article in Curr. Opinion Colloid Interface Sci. 1998, 3, 276-283.
  11. B.P. Binks, P.D.I. Fletcher, W.F.C. Sager, and R.L. Thompson,
    "Semifluorinated Alkanes as Primitive Surfactants in Apolar Hydrocarbon and Fluorocarbon Solvents",
    J. Molecular Liquids 1997, 72, 177-190.
  12. G.J.M. Koper, W.F.C. Sager, J. Smeets, and D. Bedeaux,
    "Aggregation in Oil-continuous Water/ AOT/ Oil Microemulsions",
    J. Phys. Chem. 1995, 99, 13291-13300.
  13. B.P. Binks, P.D.I. Fletcher, W.F.C. Sager, and R.L. Thompson,
    "Adsorption of Semifluorinated Alkanes at Hydrocarbon-Air Surfaces",
    Langmuir 1995, 11, 977-983.
  14. W. Sager, R. Strey, M. Kühnle, and M. Kahlweit,
    "AOT, Influence of Impurities on the Phase Behaviour",
    Progr. Colloid Polym. Sci. 1994, 97, 141-145.
  15. W. Sager, H.-F. Eicke, and W. Sun,
    "Preparation of Nano-Sized Uniform Ceramic Particles in Emulsions",
    Colloids and Surfaces A 1993, 79, 199-216.
  16. W. Sager, W. Sun, and H.-F. Eicke,
    "Is the AOT/ Water/ Oil System Really Simple?",
    Progr. Colloid Polym. Sci. 1992, 89, 284-287.
  17. P. Barnikel, A. Wokaun, W. Sager and H.-F. Eicke,
    "Size Tailoring of Silver Colloids by Reduction in W/O Microemulsion",
    J. Colloid Interface Sci. 1992, 148, 80-90.
  18. C. Quellet, H.-F. Eicke, and W. Sager,
    "On Formation of Microemulsion- Based Gelatine Gels",
    J. Phys. Chem. 1991, 95, 5642-5655.
  19. R. Hilfiker, H.-F. Eicke, W. Sager, C. Steeb, U. Hofmeier and R. Gehrke,
    "Form and Structure Factors of Water / AOT / Oil Microemulsions from Synchrotron SAXS",
    Ber. Bunsenges. Phys. Chem. 1990, 94, 677-683.
  20. C. Quellet, H.-F. Eicke, R. Gehrke, and W. Sager,
    "Evidence of Fractal Network Formation in Gelatine-W/O Microemulsions",
    Europhys. Lett. 1989, 9 (3), 293-298.

 


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