Prof. Dr. Karlheinz Graf

Hochschule Niederrhein. Your way.

Courses

Current courses

The description of the course contents can be found in the corresponding module manuals.

 

Bachelor's degree programmes

Mathematics II SoSe 2024 (B.Eng./B.Sc./Dual/TZ)

 

Master's degree programmes

Numerical Optimization SoSe 2024 in the module MNOA (M.Eng.)

 

Former courses

Bachelor's degree programmes

Mathematics I WS 2023/24 (B.Eng.)

Mathematics II SoSe 2023 (B.Eng./B.Sc./Dual/TZ)

Mathematics I WS 2022/23 (B.Eng.)

Mathematics II SS 2022 (B.Eng./B.Sc./Dual/TZ)

Mathematics I WS 2021/22 (B.Eng./Dual/TZ)

Mathematics II SS 2021 (B.Eng./B.Sc./Dual/TZ)

Mathematics I WS 2020/21 (B.Eng./Dual/TZ)

Mathematics II SS 2020 (B.Eng./Dual/TZ)

Mathematics I WS 2019/20 (B.Sc./B.Eng./Dual/TZ)

Mathematics II SS 2019 (B.Sc.)

Mathematics I WS 2018/19 (B.Sc.)

Mathematics II SS 2018 (B.Sc.)

Mathematics I WS 2017/18 (B.Sc.)

Mathematics II SS 2017 (B.Sc.)

Mathematics I WS 2016/17 (B.Sc.)

Mathematics II SS 2016 (B.Sc.)

Mathematics I WS 2015/16 (B.Sc.)

Mathematics II SS 2015 (B.Eng./B.Sc.)

Mathematics I WS 2014/15 (B.Eng./B.Sc.)

Mathematics II SS 2014 (B.Eng./B.Sc.)

Mathematics I WS2013/14 (B.Eng./B.Sc.)

Mathematics II SS 2013 (B.Sc.)

Mathematics I WS 2012/13 (B.Sc.)

 

Master's degree programmes

Colloid and Interface Chemistry WS 2023/24 (M.Eng./M.Sci.)

Colloid and Interface Chemistry WS 2022/23 (M.Eng./M.Sci.)

Colloid and Interface Chemistry WS 2021/22 (M.Eng./M.Sci.)

Colloid and Interfacial Chemistry WS 2020/21 (M.Eng./M.Sci.)

Colloid and Interfacial Chemistry WS 2019/20 (M.Eng./M.Sci.)

Colloid and Interfacial Chemistry WS 2018/19 (M.Eng.)

Colloid and Interface Chemistry WS 2017/18 (M.Eng.)

Colloid and Interface Chemistry WS 2016/17 (M.Eng.)

 

Numerical Optimization SoSe 2023 in the module MNOA (M.Eng.)

Numerical Optimization SS 2022 in the module MNOA (M.Eng.)

Numerical Optimization SS 2021 (M.Eng.)

Numerical Optimization SS 2020 (M.Eng.)

Numerical Optimization SS 2019 (M.Eng.)

Numerical Optimization SS 2018 (M.Eng.)

Mathemat. Optimization II SS 2017 (M.Eng.)

Mathemat. Optimization II SS 2016 (M.Eng.)

 

Mathemat. Models WS 2023/24 in the module MNOA (M.Eng.)

Mathemat. Models WS 2022/23 in the module MNOA (M.Eng.)

Mathemat. Models WS 2021/22 in the module MNOA (M.Eng.)

Mathemat. Models WS 2020/21 (M.Eng.)

Mathemat. Models WS 2019/20 (M.Eng.)

Mathemat. Models WS 2018/19 (M.Eng.)

Mathemat. Models WS 2017/18 (M.Eng.)

Mathemat. Models WS 2016/17 (M.Eng.)

Mathemat. Models WS 2015/16 (M.Eng.)

Mathemat. Models WS 2014/15 (M.Eng.)

Mathemat. Models WS 2013/14 (M.Eng.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Vita

Enter vita or link

Research

The following link leads to my external research page. Please accept certificate!

Research K. Graf (external)

Publications

2018

  • W. Ali, B. Gebert, S. Altinpinar, Th. Mayer-Gall, M. Ulbricht, J. S. Gutmann, K. Graf, On the potential of using dual-function hydrogels for brackish water desalination, Polymers, 2018, 10, 567-588.

 

2016

  • D. Gabriel, A. Karbach, D. Drechsler, J. S. Gutmann , K. Graf, S. Kheirandish, Bound rubber morphology and loss tangent properties of carbon-black-filled rubber compounds, Colloid Polym. Sci., 2016, 294, 501-511.

 

2015

  • W. Ali, B Gebert, T. Hennecke, K. Graf, M. Ulbricht, J. S. Gutmann, Design of Thermally Responsive Polymeric Hydrogels for Brackish Water Desalination: Effect of Architecture on Swelling, Deswelling, and Salt Rejection, ACS Appl. Math. Mater. Interfaces, 2015, 7, 15696-15706.

 

2013

  • H.-J. Butt, K. Graf, M. Kappl, Physics and Chemistry of Interfaces, 3rd edition, Wiley-VCH, 2013.

 

2012

  • C. E. McNamee, M. Kappl, H.-J. Butt, H. Nguyen, S. Sato, K. Graf, Th. W. Healy, Effect of the degree of dissociation of molecules in a monolayer at an air/water interface on the force between the monolayer and a like-charged particle in the subphase, J. Phys. Chem. B, 2012, 116, 13731-13738.

 

2011

  • C. E. McNamee, M. Kappl, H.-J. Butt, J. Ally, H. Shigenobu, Y. Iwafuji, K. Higashitani, K. Graf, Forces between a monolayer at an air/water interface and a particle in solution: influence of the sign of the surface charges and the subphase salt concentration, Soft Matter, 2011, 7, 10182-10192.
  • C. E. McNamee, K. Graf, H.-J. Butt, K. Higashitani, M. Kappl, Interaction between a silica particle and the underside of a polymer monolayer at the air/water interface in the presence of an anionic surfactant, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2011, 383, 32-40.

 

2010

  • K. Graf, K. Büscher, M. Kappl, S. Moreno-Flores, D. Pum, U. B. Sleytr, J. L. Toca-Herrera,
    The Monolayer Particle Interaction Apparatus: Interaction of colloidal probes and lipid-protein layers at the air-water interface, in Biomimetics in Biophysics: Model Systems, Experimental Techniques and Computation, ed. José L. Toca-Herrera, Transworld Research Signpost, pp. 109-125, Kerala 2010 (ISBN: 978-81-308-0385-2).
  • C. E. McNamee, M. Kappl, H.-J. Butt, K. Higashitani, K. Graf, Interfacial Forces between a Silica Particle and Phosphatidylcholine Monolayers at the Air-Water Interface, Langmuir, 2010, 26(18), 14574-14581.

 

2009

  • Y. Karade, S. A. Pihan, W. H. Brünger, A. Dietzel, R. Berger, K. Graf, Determination of crosslink density in ion-irradiated polystyrene surfaces from rippling, Langmuir, 2009, 25, 3108-3114.
  • G. Li, K. Graf, Microstructures formation by deposition of toluene drops on polystyrene surface, PCCP, 2009, 11, 7137-7144.
  • G. Li, S. M. Flores, Ch. Vavilala, M. Schmittel, K. Graf, Evaporation dynamics of microdrops on self-assembled monolayers of dialkyl disulfides, Langmuir, 2009, 25(23), 13438-13447.

 

2008

  • F. Schönfeld, K. Graf, S. Hardt, H.-J. Butt, Time of evaporation of sessile liquid drops in still air with constant contact radius, International Journal of Heat and Mass Transfer, 2008, 51, 3696-3699.
  • H. Payer, T. Haschke, R. Reichardt, G. Li, K. Graf, W. Wiechert, Profile analysis of regularly microstructured surfaces, Fluid Dynamics and Material Processing, 2008, 4(2), 61-76.
  • M. Toda, A. N. Itakura, S. Igarashi, K. Büscher, J. Gutmann, K. Graf, R. Berger, Surface stress, thickness, and mass of the first few layers of polyelectrolyte, Langmuir, 2008, 24(7), 3191-3198.
  • R. Zhang, T. Cherdhirankorn, K. Graf, K. Koynov, R. Berger, Swelling of cross-linked polystyrene beads in toluene, MNE, 2008, 85, 1261-1264.
  • R. Pericet-Camara, E. Bonaccurso, K. Graf, Microstructuring of polystyrene surfaces by non-solvent sessile droplets, ChemPhysChem, 2008, 9, 1738-1746.
  • G. Münchow, F. Schönfeld, S. Hardt, K. Graf, Protein diffusion across the interface in aqueous two-phase systems, Langmuir, 2008, 24, 8547-8553.

2007

  • T. Haschke, W. Wiechert, K. Graf, E. Bonaccurso, G. Li, F.-T. Suttmeier, Evaporation of solvent microdrops on polymer substrates: from well-controlled experiments to mathematical models and back, Nanoscale and Microscale Thermophysical Engineering (NMTE), 2007, 11, 31-41.
  • Y. Karade, K. Graf, W. H. Brünger, A. Dietzel, R. Berger, Oriented nanometer surface morphologies by thermal relaxation of locally cross-linked and stretched polymer samples, MNE, 2007, 84, 797-801.
  • G. Li, K. Graf, E. Bonaccurso, D.S. Golovko, A. Best, H.-J. Butt, Evaporation structures of solvent drops evaporating from polymer surfaces: influence of molar mass, Macromol. Chem. Phys., 2007, 208, 2134-2144.

 

2006

  • M. Toda, K. Büscher, K. Graf, A. N. Itakura, R. Berger, Surface stress of polyelectrolyte adsorption measured by micromechanical cantilever sensors, J. Surf. Sci. Nanotechnol, 2006, 4, 1-4.
  • K. Büscher, R. Berger, W. Brünger, K. Graf, Surface morphologies in polymers by irradiation with argon ions and consecutive swelling, Microelectronic Engineering, 2006, 83, 819-822.
  • N. Loges, K. Graf, L. Nasdala, W. Tremel, Probing Cooperative Interactions of Tailor-Made Nucleation Surfaces and Macromolecules: A Bio-inspired Route to Hollow Micrometer-Sized Calcium Carbonate Particles, Langmuir, 2006, 22, 3073-3080.
  • C. Stupperich-Sequeira, K. Graf, W. Wiechert, Modeling and simulation of micro-well formation, Mathematical and Computer Modeling of Dynamical Systems, 2006, 12, 263-276.
  • T. Haschke, K. Graf, E. Bonaccurso, G. Li, F.-T. Suttmeier, W. Wiechert, Evaporation of Solvent Microdrops on Polymer Substrates: Crater Geometries and Parameter Sensitivity Analysis, Proceedings of the Second International Conference on Transport Phenomena in Micro and Nanodevices, ed. M. Gad-el-Hak, Paper No. VIII-5, CD Publication, Engineering Conference International, Brooklyn, New York 2006.
  • P. Chiranjeevi, K. Graf, J. Kressler, Langmuir monolayer and Langmuir-Blodgett films of amphiphilic triblock copolymers with water soluble middle block, Coll. Polym. Sci., 2006, 285, 27-37.
  • S. Karabasheva, S. Baluschev, K. Graf, Microstructures on soluble polymer surfaces via solvent drop deposition, APL, 2006, 89, 031110.
  • E. Bonaccurso, B. Cappella, K. Graf, Local mechanical properties of plasma treated polystyrene surfaces, J. Phys. Chem. B., 2006, 110, 17918-17924.
  • G. Li, H.-J. Butt, K. Graf, Microstructures by solvent drop evaporation on polymer surfaces: dependence on molar mass, Langmuir, 2006, 22, 11395-11399.
  • R. Zhang, K. Graf, R. Berger, Swelling of crosslinked polystyrene spheres in toluene vapor using micromechanical cantilever sensors, APL, 2006, 89, 223114.
  • G. Li, N. Höhn, K. Graf, Microtopologies in polymer surfaces by solvent drops in contact and noncontact fashion, APL, 2006, 89, 241920.

 

2005

  • G. Gillies, K. Büscher, M. Preuss, M. Kappl, H.-J. Butt, K. Graf, Contact Angles and Wetting Behavior of Single Micron-sized Particles, J. Physics: Condens. Matter, 2005, 17, S445-S464.
  • E. Bonaccurso, H.-J. Butt, B. Hankeln, B. Niesenhaus, K. Graf, Fabrication of microvessels and microlenses from polymers by solvent droplets, Appl. Phys. Lett, 2005, 86, 124101.
  • M. Schmittel, M. Lal, K. Graf, G. Jeschke, I. Suske, J. Salbeck, N,N'-dimethyl-2,3-dialkylpyra¬zinium salts as redox-switchable surfactants? Redox, spectral, EPR and surfactant properties, Chem. Comm., 2005, 45, 5650-5652.

 

2004

  • E. Bonaccurso, H.-J. Butt, K. Graf, Microarrays by structured substrate swelling, European Polymer Journal, 2004, 40, 975-980.
  • E. Bonaccurso, K. Graf, Nanostructuring effect of plasma and solvent treatment on polystyrene, Langmuir, 2004, 20, 11183-11190.
  • A. Förtig, R. Jordan, K. Graf, G. Schiavon, O. Purrucker, M. Tanaka, Solid-supported biomimetic membranes with tailored lipopolymer tethers, Macromol.Symp., 2004, 210, 329-338.
  • B. Ohler, K. Graf, R. Bragg, T. Lemons, R. Coe, C. Genain, J. Israelachvili, C. Husted, Role of lipid interactions in autoimmune demyelination, BBA, 2004, 1688, 10-17.

 

2003

  • C. Stupperich-Sequeira, K. Graf, W. Wiechert, Modeling of the Production of Microwells, Conference Proceedings 4th Mathmod, in: ARGESIM-Reports, Vol. 24, eds: I. Troch and F. Breitenecker, Vienna 2003, ISBN 3-901608-24-9.

 

2002

  • K. Graf, H. Baltes, H. Ahrens, C. A. Helm, C. A. Husted, Structure of hydroxylated galactocerebrosides from myelin at the air-water interface, Biophys. J., 2002, 82, 896-907.
  • K. Büscher, K. Graf, H. Ahrens, C. A. Helm, Influence of adsorption conditions on the structure of polyelectrolyte multilayers, Langmuir, 2002, 18(9), 3585-3591.
  • E. Bonaccurso, H.-J. Butt, V. Franz, K. Graf, M. Kappl, S. Loi, B. Niesenhaus, S. Chemnitz, M. Böhm, B. Petrova, U. Jonas, H.W. Spiess, Water induced dewetting of ultrathin polystyrene films on hydrophilic surfaces, Langmuir, 2002, 18(21), 8056-8061.

 

2001

  • H. Ahrens, K. Graf, C. A. Helm, Observation of a superstructure X-ray peak within lipopolymer monolayers on the water surface, Langmuir, 2001, 17(11), 3113-3115.

 

2000

  • K. Graf, H. Riegler, Is there a general equation of state approach for interfacial tensions?, Langmuir, 2000, 16(11), 5187-5191.
  • H. Ahrens, T.R. Baekmark, R. Merkel, J. Schmitt, K. Graf, R. Raiteri, C. A. Helm, Hydrophilic/hydrophobic nanostripes in lipopolymer monolayers, Chem. Phys. Chem. copublished with Angewandte Chemie - Intl. Ed., 2000, 2, 101-106.

 

1999

  • B. Ohler, K. Graf, T. Lemons, R. Coe, S. Jahangir, W. See, C. Genain, C. Husted, Myelin lipid research using Langmuir monolayers, Journal of Neurochemistry, 1999, 72 suppl, 15.

 

1998

  • K. Graf, H. Riegler, Molecular adhesion interactions between Langmuir monolayers and solid substrates, Colloids and surfaces A: Physicochemical and Engineering Aspects, 1998, 131, 215-224.

 

1996

  • R. Jordan, K. Graf, H. Riegler, K. Unger, Polymer supported alkyl monolayers on silica: synthesis and self-assembly of terminal functionalized poly(N-propionyl¬ethylenimine)s, Chem. Commun., 1996, 9, 1025-1026.

 

1994

  • C. Flament,K. Graf, F. Gallet, H. Riegler, Structure of an anisotropic two-dimensional solid in a Langmuir film studied by electron scattering, Thin Solid Films, 1994, 243, 411-414.

Inhouse work

Project/bachelor's/master's project and master's theses, doctorates, etc.

 

PhD students

Physical Chemistry Member ILOC Institute