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Dr. Ralf Zimmermann

Institute of Biofunctional Polymer Materials
+49 351 4658 258 +49 351 4658 533

 

Fields of work

 

 

Publications

  • Lanfer, B. ; Freudenberg, U. ; Zimmermann, R. ; Stamov, D. ; Körber, V. ; Werner, C. Aligned fibrillar collagen matrices obtained by shear flow deposition more Biomaterials 29 (2008) 3888-3895
  • Zimmermann, R. ; Osaki, T. ; Gauglitz, G. ; Werner, C. Combined microslit electrokinetic measurements and reflectometric interference spectroscopy to study protein adsorption processes more Biointerphases 2 (2007) 159-164
  • Dukhin, St. ; Zimmermann, R. ; Werner, C. Electrophoresis of soft particles at high electrolyte concentrations: An interpretation by the Henry theory more Journal of Colloid and Interface Science 313 (2007) 676-679
  • Freudenberg, U. ; Zimmermann, R. ; Schmidt, K. ; Behrens, S.-H. ; Werner, C. Charging and swelling of cellulose films more Journal of Colloid and Interface Science 309 (2007) 360-365
  • Dukhin, St. ; Zimmermann, R. ; Werner, C. Surface conductivity reveals counterion condensation within grafted polyelectrolyte layers more Journal of Physical Chemistry / B 111 (2007) 979-981
  • Härtl, A. ; Garrido, J. A. ; Nowy, S. ; Zimmermann, R. ; Werner, C. ; Horinek, D. ; Netz, R. ; Stutzmann, M. The ion sensitivity of surface conductive single crystalline diamond more Journal of the American Chemical Society 129 (2007) 1287-1292
  • Pompe, T. ; Mothes, M. ; Mothes, G. ; Nitschke, M. ; Teese, M. ; Zimmermann, R. ; Werner, C. Surface modification of poly(hydroxybutyrate) films to control cell-matrix adhesion more Biomaterials 28 (2007) 28-37
  • Zimmermann, R. ; Osaki, T. ; Schweiß, R. ; Werner, C. Electrokinetic microslit experiments to analyse the charge formation at solid/liquid interfaces more Microfluidics and Nanofluodics 2 (2006) 367-379
  • Dukhin, St. ; Zimmermann, R. ; Werner, C. Electrokinetic fingerprinting of grafted polyelectrolyte layers - a theoretical approach more Advances in Colloid and Interfaces Science 122 (2006) 93-105
  • Zimmermann, R. ; Osaki, T. ; Kratzmüller, Th. ; Gauglitz, G. ; Dukhin, St. ; Werner, C. Electrostatic Switching of Biopolymer Layers. Insights from Combined Electrokinetics and Reflectometric Interference more Analytical Chemistry 78 (2006) 5851-5857
  • Delgado, A.V. ; González-Caballero, F. ; Hunter, R.J. ; Koopal, L. K. ; Lyklema, J. ; Measurement and Interpretation of Electrokinetic Phenomena (IUPAC Technical Report) more Pure and Applied Chemistry 77 (2005) 1753-1805
  • Zimmermann, R. ; Norde, W. ; Cohen Stuart, M.A. ; Werner, C. Electrokinetic Characterization of Poly(Acrylic Acid) and Poly(Ethylene Oxide) Brushes in Aqueous Electrolyte Solutions more Langmuir 21 (2005) 5108-5114
  • Dukhin, St. ; Zimmermann, R. ; Werner, C. Electrokinetic phenomena at grafted polyelectrolyte layers more Journal of Colloid and Interface Science 286 (2005) 761-773
  • Dukhin, St. ; Zimmermann, R. ; Werner, C. Intrinsic Charge and Donnan potentials of grafted polyelectrolyte layers determined by surface onductivity data more Journal of Colloid and Interface Science 274 (2004) 309-318
  • Zimmermann, R. ; Kratzmüller, Th. ; Erickson, D. ; Li, D. ; Braun, H.-G. ; Werner, C. Ionic Strength-Dependent pK-Shift in the Helix-Coil Transition of Grafted Poly(L-glutamic acid) Layers Analyzed by Electrokinetic and Ellipsometric Measurements more Langmuir 20 (2004) 2369-2374
  • Osaki, T. ; Zimmermann, R. ; Kratzmüller, Th. ; Schweiß, R. ; Werner, C. Polyanion Protection of Silane Bonds to Silicon Oxide Revealed by Electrokinetic Measurements more Langmuir 20 (2004) 524-527
  • Zimmermann, R. ; Birkert, O. ; Gauglitz, G. ; Werner, C. Electrosurface Phenomena at Polymer Films for Biosensors Applications more ChemPhysChem 4 (2003) 509-514
  • Rößler, S. ; Zimmermann, R. ; Scharnweber, D. ; Werner, C. ; Worch, H. Characterization of oxide layers on Ti6A14V and titanium by streaming potential and streaming current measurements more Colloids and Surfaces B: Biointerfaces 26 (2002) 387-395
  • Dukhin, S.S. ; Zimmermann, R. ; Werner, C. A concept for the generalization of the standard electrokinetic model more Colloids and Surfaces A: Physicochemical and Engineering Aspects 195 (2001) 103-112
  • Zimmermann, R. ; Dukhin, S.S. ; Werner, C. Electrokinetic Measurements Reveal Interfacial Charge at Polymer Films Caused by Simple Electrolyte Ions more Journal of Physical Chemistry 105 (2001) 8544-8549
  • Werner, C. ; Zimmermann, R. ; Kratzmüller, Th. Streaming potential and streaming current measurements at planar solid/liquid interfaces for simultaneous determination of zeta potential and surface conductivity more Colloids and Surfaces A: Physicochemical and Engineering Aspects 192 (2001) 205-213
  • Zimmermann, R. ; Jenschke, W. ; Körber, H. ; Werner, C. Bestimmung des Zeta-Potentials und der Grenzflächenleitfähigkeit durch Strömungspotential- und Strömungsstrommessungen = Determination of the Zeta Potential and the Surface Conductivity by Streaming Potential and Streaming Current Measurements more Technisches Messen 67 (2000) 353-360