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Dr. Ralf Zimmermann

Division Polymer Biomaterials Science
+49 351 4658 258 +49 351 4658 533

 

Fields of work

 

 

Publications

  • Zimmermann, R. ; Müller, Y. ; Freudenberg, U. ; Jehnichen, D. ; Potthast, A. ; Rosenau, T. ; Werner, C. Oxidation and structural changes in NMMO-regenerated cellulose films more Cellulose 23 (2016) 3535-3541
  • Zimmermann, R. ; Friedrichs, J. ; Lanfer, B. ; Freudenberg, U. ; Werner, C. Aligned fibrillar collagen matrices more Wiley 1 (2016) Chapter 27, 340-354
  • Duval, J. F. L. ; Werner, C. ; Zimmermann, R. Electrokinetics of soft polymeric interphases with layered distribution of anionic and cationic charges more Current Opinion in Colloid and Interface Science 24 (2016) 1-12
  • Zimmermann, R. ; Werner, C. ; Duval, J. F. L. Recent progress and perspectives in the electrokinetic characterization of polyelectrolyte films more Polymers [Open Access] 8 (2016) Article No. 7
  • Amornsudthiwat, P. ; Nitschke, M. ; Zimmermann, R. ; Friedrichs, J. ; Grundke, K. ; Pöschel, K. ; Damrongsakkul, S. ; Werner, C. Comprehensive characterization of well-defined silk fibroin surfaces: Toward multitechnique studies of surface modification effects more Biointerphases 10 (2015) 029501
  • Zimmermann, R. ; Duval, J. F. L. ; Werner, C. Probing Biointerfaces - Electrokinetics more RSC Press (2015) 55-73
  • Zieris, A. ; Dockhorn, R. ; Röhrich, A. ; Zimmermann, R. ; Müller, M. ; Welzel, P. ; Tsurkan, M. ; Sommer, J.-U. ; Freudenberg, U. ; Werner, C. Biohybrid networks of selectively desulfated glycosaminoglycans for tunable growth factor delivery more Biomacromolecules 15 (2014) 4439-446
  • Zimmermann, R. ; Romeis, D. ; Bihannic, I. ; Stuart, M.A.C. ; Sommer, J.-U. ; Werner, C. ; Duval, J. F. L. Electrokinetics as an alternative to neutron reflectivity for evaluation of segment density distribution in PEO brushes more Soft Matter 10 (2014) 7804-7809
  • Schulze, A. ; Maitz, M.F. ; Zimmermann, R. ; Marquardt, B. ; Fischer, M. ; Werner, C. ; Went, M. ; Thomas, I. Permanent surface modification by electron-beam-induced grafting of hydrophilic polymers to PVDF membranes more Journal of Membrane Science 3 (2013) 22518-22526
  • Zimmermann, R. ; Dukhin, S. S. ; Werner, C. ; Duval, J. F. L. On the use of electrokinetics for unraveling charging and structure of soft planar polymer films more Current Opinion in Colloid and Interface Science 18 (2013) 83-92
  • Zimmermann, R. ; Bartsch, S. ; Freudenberg, U. ; Werner, C. Electrokinetic analysis to reveal composition and structure of biohybrid hydrogels more Analytical Chemistry 84 (2012) 9592-9595
  • Warenda, M. ; Richter, A. ; Schmidt, D. ; Janke, A. ; Müller, M. ; Simon, F. ; Zimmermann, R. ; Eichhorn, K.-J. ; Voit, B. ; Appelhans, D. Fabrication pH-stable and swellable very thin hyperbranched poly(ethylene imine)- oligosaccharide films fabricated without precoating: first view on protein adsorption more Macromolecular Rapid Communications 33 (2012) 1466-1473
  • Zimmermann, R. ; Küttner, D. ; Renner, L. ; Kaufmann, M. ; Werner, C. Fluidity modulation of phospholipid bilayers by electrolyte ions: Insights from fluorescence microscopy and microslit electrokinetic experiments more Journal of Physical Chemistry / A: Molecules, spectroscopy, kinetics, environment & general theory 116 (2012) 6519–6525
  • Dukhin, S. S. ; Zimmermann, R. ; Werner, C. Surface conductivity more Wiley & Sons (2012) 95-126
  • Duval, J. F. L. ; Küttner, D. ; Werner, C. ; Zimmermann, R. Electrohydrodynamics of soft polyelectrolyte multilayers: point of zero-streaming current more Langmuir 27 (2011) 10739-10752
  • Duval, J. F. L. ; Küttner, D. ; Nitschke, M. ; Werner, C. ; Zimmermann, R. Interrelations between charging, structure and electrokinetics of nanometric polyelectrolyte films more Journal of Colloid and Interface Science 362 (2011) 439-449
  • Zimmermann, R. ; Kuckling, D. ; Kaufmann, M. ; Werner, C. ; Duval, J. F. L. Electrokinetics of a poly(N-isopropylacrylamid-co-carboxyacrylamid) soft thin-film. Evidence of segment distribution in the swollen state more Langmuir 26 (2010) 18169-18181
  • Pidhatika, B. ; Möller, J. ; Benetti, E. M. ; Konradi, R. ; Rakhmatullina, E. ; Muehlebach, A. ; Zimmermann, R. ; Werner, C. ; Vogel, V. ; Textor, M. The role of the interplay between polymer architecture and bacterial surface properties on the microbial adhesion to polyoxazoline-based ultrathin films more Biomaterials 31 (2010) 9462-9472
  • Richter, A. ; Janke, A. ; Zschoche, St. ; Zimmermann, R. ; Simon, F. ; Eichhorn, K.-J. ; Voit, B. ; Appelhans, D. pH-stable hyperbranched poly(ethyleneimine)-maltose films for the interaction with phosphate containing drugs more New Journal of Chemistry 34 (2010) 2105-2108
  • Dukhin, S. S. ; Zimmermann, R. ; Duval, J. F. L. ; Werner, C. On the applicability of the Brinkman equation in soft surface electrokinetics more Journal of Colloid and Interface Science 350 (2010) 1-4
  • Müller, Y. ; Tot, I. ; Potthast, A. ; Rosenau, T. ; Zimmermann, R. ; Eichhorn, K.-J. ; Nitschke, C. ; Scherr, G. ; Freudenberg, U. ; Werner, C. The impact of esterification reactions on physical properties of cellulose thin films more Soft Matter 6 (2010) 3680-3684
  • Lützenkirchen, J. ; Zimmermann, R. ; Preocanin, T. ; Filby, A. ; Kupcik, T. ; Küttner, D. ; Abdelmonem, A. ; Schild, D. ; Rabung, T. ; Plaschke, M. ; Brandenstein, F. ; Werner, C. ; Geckeis, H. The attempt to explain bimodal behaviour of the sapphire c-plane electrolyte interface more Advances in Colloid and Interfaces Science 157 (2010) 61-74
  • Zimmermann, R. ; Freudenberg, U. ; Schweiß, R. ; Küttner, D. ; Werner, C. Hydroxide and hydronium ion adsorption - A survey more Current Opinion in Colloid and Interface Science 15 (2010) 196-202
  • Duval, J. F. L. ; Zimmermann, R. ; Cordeiro, A. L. ; Rein, N. ; Werner, C. Electrokinetics of diffuse soft interfaces. IV. Anaylsis of streaming current measurements at thermoresponsive thin films more Langmuir 25 (2009) 10691-10703
  • Zimmermann, R. ; Rein, N. ; Werner, C. Water ion adsorption dominates charging at nonpolar polymer surfaces in multivalent electrolytes more Physical Chemistry, Chemical Physics 11 (2009) 4360-4364