302 831 8079 wagnernj@udel.edu



Principal Investigator

Norman J. Wagner

Robert L. Pigford Chaired Professor

Chemical & Biomolecular Engineering

Affiliated Professor of Physics and Astronomy

Director, Center for Neutron Science


Wagner Short Biosketch


Office: CLB 227

Phone: (302) 831-8079




Graduate Students

Soham Jariwala
Email: sdj@udel.edu
Phone: (302) 831-2957
Office: 047 Colburn Laboratory


Róisín Donnelly
Email: roisind@udel.edu
Phone: (302) 831-2957
Office: 047 Colburn Laboratory


Brian Paul
Email: bpaul@udel.edu
Office: 153 Colburn Laboratory
Curriculum Vitae


Sean Farrington
Email: sfarr@udel.edu
Office: 044 Colburn Laboratory
Ted Egnaczyk
Email: tmegna@udel.edu
Phone: (302) 831-2957
Office: 047 Colburn Laboratory
Quent Hartt
Email: qhartt@udel.edu
Phone: (302) 831-2957
Office: 047 Colburn Laboratory
Kiet Pham
Email: kgpham@udel.edu
Phone: (302) 831-2957
Office: 047 Colburn Laboratory
Jack Rooks
Email: jrooks@udel.edu 
Phone: (302) 831-2957
Office: 047 Colburn Laboratory

Postdoctoral Researchers

Khushboo Suman
Email: ksuman@udel.edu
Office: 042 Colburn Laboratory
Curriculum Vitae
Ben Thompson
Email: bthompsn@udel.edu
Phone: (302) 831-2957
Office: 047 Colburn Laboratory
Curriculum Vitae



Qi Li
Email: qili@udel.edu
Phone: (240) 667-6454
Office: 047 Colburn Laboratory

Professional Staff

Richard Dombrowski
Email: rdombro@udel.edu
Phone: (302) 831-8919
Office: CLB 044
Curriculum Vitae
Maria Katzarova
Email: mkatzaro@udel.edu
Office: 044 Colburn Laboratory
Curriculum Vitae

Undergraduate Students

Vasudev Tangry
Email: vasudev@udel.edu

Current and Former Collaborators

  • Prof. Ramon Castaneda-Piego.  Guanajuato, Mexico [link]
  • Prof. Em. Jan Mewis.  KU Leuven. [Link]
  • Prof. Jim Swan. MIT [Link]
  • Dr. Yun Liu. NCNR NIST, UD [Link]
  • Dr. Paul Butler. NCNR NIST, UD [Link]
  • Dr. Lionel Porcar.  ILL Grenoble [Link]
  • Dr. Dan Zarraga.  Genentech [Link]
  • Dr. Beth Schubert.  P&G
  • Prof Michael Gradzielski.  TU Berlin [Link]
  • Prof Ulf Olsson.  Univ. Lund [Link]
  • Dr. Luigi Gentile. Univ. Calabria/ Univ. Lund [Link]
  • Prof. Dimitris Vlassopoulos.  Univ. Crete [Link]
  • Prof. Jan Vermant.  Ku Leuven [Link]

Former Graduate Students

  • Dr. Jennifer Mills Ph.D. 2022 Thesis title: Chemical structure-property relationships of alkali-activated aluminosilicate polymeric materials for the development of sustainable construction materials.
  • Dr. Summer Tein Ph.D. 2022 Thesis title: Novel Method for Investigating Structure and Rheology of Complex Fluid Interfaces with Biotherapeutic Applications. 
  • Dr. Yu-Fan Lee Ph.D. 2022 Thesis title: Microstructure and Rheology of Concentrated Colloidal Suspensions with Varying Nanotribological Interactions.
  • Dr. Julie B. Hipp Ph.D. 2020 Thesis title: Structure, Rheology, and Electrical Conductivity of High-Structured Carbon Black Suspensions. Employed by: Procter & Gamble.
  • Dr. Jeffrey S. Horner Ph.D. 2020 Thesis title: An Experimental and Theoretical Investigation of Blood Rheology.  Postdoc at Sandia National Laboratories.
  • Dr. Jannat Nayem Ph.D. 2019 Thesis title: Biophysical Characterization of Critical Physicochemical Properties of Therapeutic Monoclonal Antibody Formulations.  Employed by: Amgen.
  • Dr. Stijn H. S. Koshari Ph.D. 2018 Thesis title: The microstructure of dense protein systems in biopharmaceutical applications.  Employed by: GlaxoSmithKline.
  • Dr. Ru Xie Ph.D. 2018 Thesis title: Toward hierarchical material design via block copolymers in a protic ionic liquid: self-assembly, functionalization, device fabrication and commercialization.  Employed by: Exxon Mobil Corporation.
  • Dr. Stephen J. Ma Ph.D. 2018 Thesis title: Controlling Surface Properties of Polymer Materials Through Photodirected Thiol-Ene Wrinkle Formation.  Employed by: Intel Corporation.
  • Dr. Ryan P. Murphy Ph.D. 2017 Thesis title: The Nature of Anisotropic Particles with Short-Range Interactions.
  • Dr. Paul Mwasame Ph.D. 2017 Thesis title: Multiscale Investigation of Fundamental Rheological Phenomena in Particulate Suspensions based on Flow-Microstructure Interactions.  Employed by: Corning Incorporated.
  • Dr. Michelle Calabrese Ph.D. 2017 Thesis title: Developing Structure-Property Relationships in Branched Wormlike Micelles via Advanced Rheological and Neutron Scattering Techniques.  Current Position: Postdoc at MIT, Assistant Prof. at University of Minnesota
  • Dr. Melissa Gordon Ph.D. 2016 Thesis title: The Development and Characterization of Stimuli-Responsive Systems for Performance Materials.  Current position: Assistant Prof. at Lafayette College
  • Dr. Jingsi Gao Ph.D. 2016 Thesis title: Rheology and Microstructure of Stable Concentrated Ionic Liquid Colloidal Suspensions.  Current Position: Monsanto Company
  • Dr. Dan Greene Ph.D. 2016 Thesis title: The Structure of Non-Crystalline Dense Protein Phases.  Current Position: ReForm Biologics
  • Dr. Colin Cwalina Ph.D. 2015 Thesis title: Shear Thickening Fluids for Enhanced Protection from Micrometeoroids and Orbital Debris.
  • Dr. Matthew Armstrong Ph.D. 2015 Thesis title: Investigating and Modeling the Thixotropic Behavior, Microstructure, and Rheology of Complex Materials.  Current Position: Assistant Prof. at the US Military Academy at West Point
  • Dr. P. Douglas Godfrin Ph.D. 2015 Thesis title: Thermodynamic and Material Properties of Reversible Cluster Formation – Application to Concentrated Protein Solutions”.
  • Dr. A. Kate Gurnon Ph.D. 2014 Thesis title: Nonlinear Oscillatory Rheology and Structure of Wormlike Micellar Solutions and Colloidal Suspensions. Employed by: GE.
  • Dr. Dongcui Li Ph.D. 2013 Thesis title: Toward Rational Design of Polyelectroylte-Surfactant Conplexes: Thermodynamics, Microstructure and Property. Employed by: Lubrizol.
  • Dr. Mark Panczyk Ph.D. 2013 Thesis title: Directed Assembly and Dynamics of Anisotropic Particles.  Employed by: Ingredion
  • Dr. Jung Min Kim Ph.D. 2013 Thesis title: Effect of the Range of Attraction on the Rheology, Microstructure, and Thermodynamics of Thermoreversible Gels with Adhesive Hard-sphere Interactions. Employed by: PepsiCo.
  • Dr. Jeong Jae Wie Ph.D. 2013 Thesis title: The Effects of Nanoparticle Size on Rheological and Mechanical Properties of Polymer Nanoparticle Nanocomposites. Employed by: Air Force Research Laboratory
  • Dr. Carrie Street Ph.D. 2012 Thesis title: Rheophysics of Thixotropic Pastes: The Rheology and Microstructure of Systems Containing Crystallizing Surfactants. Employed by: Valspar
  • Dr. Dennis Kalman Ph.D. 2010 Thesis title: Microstructure and rheology of concentrated suspensions of near hard sphere colloidal spheres. Employed by:
  • Dr. Jason McMullan Ph.D. 2010 Thesis title: Directed Self-Assembly of Colloidal Crystals with Electric and Shear Fields. Employed by: ExxonMobil Process Research Laboratories, Annandale, NJ
  • Dr. Amit Kumar Ph.D. 2009 Thesis title: Configurational Diffusion of Small Gas Molecules in Nanostructured Materials: A Computational and Experimental Study Employed by: IIT Guwahati, India
  • Dr. Matthew Helgeson, Ph.D. 2009 Thesis title: Structure and Rheology of Wormlike Micelle-Nanoparticle Mixtures. Employed by: Massachusetts Institute of Technology, Cambridge, MA
  • Dr. Monica Branco, Ph.D. 2009 Thesis title: Responsive Peptide Hydrogels for Optimal Production of Monoclonal Antibodies. Employed by: National Institutes of Health (NIH), Frederick, MD
  • Dr. Teokor McFarlane, Ph.D. 2009 Thesis title: Selp-assembly of polyelectrolytes and surfactants in complex fluids. Employed by: Merck, Lansdale, PA
  • Kate Hollabaugh, M.S. 2008 Thesis title: Microstructure and Rheology of Mixed Ionic Surfactants Employed by: Dow Chemical Company, Texas City, TX
  • Dr. Armin Opitz, Ph.D. 2007 Thesis title: Structural and Functional Investigations of a Molecular Imaging Nanoparticle for Magnetic Resonance Imaging of Oncogene Expression in the Pancreas Employed by: Genzyme, Framingham, MA
  • Dr. Ronald Egres, Ph.D. 2005 Thesis title: The effects of particle anisotropy on the rheology and microstructure of concentrated colloidal suspensions through the shear thickening transition Employed by: The DuPont Company, Richmond, VA
  • Dr. Lakshmi Krishnamurthy, Ph.D. 2005 Thesis title: Microstructure and Rheology of Polymer-Colloid Mixtures Employed by: The DuPont Company, Wilmington, DE
  • Vikram Daga, M.S. 2005 Thesis title: Electrospinning and rheology of neat and laponite-filled aqueous poly(ethylene oxide) solutions Employed by: Unilever, India
  • Dr. Jan Boshoff, Ph.D. 2004 Thesis title: Configurational Diffusion in Glassy, Amorphous Polymers: Effects of Polymer Structure and Dynamics on Permeation via Molecular Simulation
  • Dr. Sudhir Shenoy, Ph.D. 2003 Thesis title: Electric Field Effects on the Rheology of Shear Thickening Colloidal Suspensions Employed by: Schlumberger, Sugarland, TX
  • Dr. Beth Shubert, Ph.D. 2003 Thesis title: The Microstructure and Rheology of charged, Wormlike Micelles Employed by: Proctor and Gamble, Cincinnati, OH
  • Dr. Brian Tande, Ph.D. 2002 Thesis title: The Rheology,Microstructure, and Phase Behavior of Dendritic and Hyperbranched Polymers Employed by: General Electric
  • Dr. Brent Maranzano, Ph.D. 2001 Thesis title: Rheology and microstructure of concentrated near hard sphere colloidal dispersions at the shear thickening transition Employed by: Pfizer, Groton, CT
  • Dr. Abe Vaynberg, Ph.D. 1999 Thesis title: Rheology and Shear Aggregation of Gelatin Stabilized Colloids Employed by: Ashland, Wilmington, DE
  • Dr. Thomas Cuthbert, Ph.D. 1998 Thesis title: Transport of Small Penetrants in Polymer Glasses: Investigations via Simulations Employed by: Union Carbide, NJ
  • Dr. William Kernick III, Ph.D. 1998 Thesis title: Rheology and Morphology of Polymer Blends Containing Liquid Crystalline Polymers Employed by: GE Plastics
  • Joseph M. Amante, M.S. 1998 Thesis title: Investigation of Shear Thickening in Charge Stabilized Colloidal Dispersions Employed by: Procter & Gamble, Norwich, NY
  • Dr. Maria Van Eijndhoven-Rivera, Ph.D. 1997 Thesis title: Flow Induced Morphological Transitions In Polymer Blends Containing A Liquid Crystalline Polymer Employed by : The DuPont Company, Wilmington, DE
  • Prof. Johan Bergenholtz, Ph.D. 1996 Thesis title: Statics and Dynamics of Colloidal Suspensions with Attractive Interactions Employed by: University of Gothenburg, Sweden
  • Prof. Jonathan W. Bender, Ph.D. 1995 Thesis title: Rheo-Optical Investigations of the Microstructure of Model Colloidal Suspensions Employed by: University of South Carolina
  • Dr. Sanjeev Rastogi, Ph.D. 1995 Thesis title: Nonequilibrium Brownian Dynamics of Colloidal Suspensions Employed by: Union Carbide Corporation, Bound Brook, NJ
  • Prof. Lynn M. Walker, Ph.D. 1995 Thesis title: Rheology and Rheo-Optics of Liquid Crystal Polymers Under Flow Employed by: Carnegie Mellon University

Former Undergraduate Researchers

  • Peter Diaz, B.S. 2022
  • Erin Hogan, B.S. 2021
  • Laura Smith, B.S. 2019
  • Cameron Mertz, B.S. 2019
  • Elaine Stewart, B.S. 2019
  • Jacob Lawton, B.S. 2018
  • Kelsey Harrison, B.S. 2017
  • Keyi Xu, B.S. 2015
  • Anne Golematis, B.S. 2011
  • Jim McGovern, B.S. 2010
  • Eitan Berlaz, B.S. 2010
  • Kristie Grammatikos, B.S. 2007
  • Joe Houghton, B.S. 2007
  • Marielle Newman, B.S. 2007
  • Matthew Decker, B.S. 2006
  • Andrew Klein, B.S. 2006
  • Andrew Marshall, B.S. 2005
  • Phil Matthews, B.S. 2005
  • Steve Ramick, B.S. 2005
  • John Kirkwood, B.S. 2004
  • Keith Kirkwood, B.S. 2004

Former Postdoctoral Researchers

  • Dr. Rachel Ford
  • Dr. Peter Gilbert
  • Dr. Yu-Jiun (Nate) Lin
  • Dr. Yimin Luo
  • Dr. Zhenhuan (Michael) Zhang
  • Dr. Saket Kumar
  • Dr. John Riley
  • Dr. Jeffrey Richards – Assistant Prof. at Northwestern University [Link]
  • Dr. Kevin Whitcomb
  • Dr. Zachery Farrell
  • Dr. Kevin Whitcomb
  • Dr. Simon Rogers – Assistant Prof. at University of Illinois – Urbana Champaign [Link]
  • Dr. Natalie Germann – Assistant Prof. at Technische Universitat Munchen [Link]
  • Dr. Eric Yearley 
  • Dr. Jeremy Fowler
  • Dr. Prachi Thareja – Assistant Prof. at Indian Institute of Technology Ghandhinagar [Link]
  • Dr. Carlos López-Barrrón
  • Dr. Jeffrey Rimer [Link]
  • Dr. Jun Fang 
  • Dr. John Bishop 
  • Dr. Basavaraj Madivala – Assistant Prof. at Indian Institute of Technology Madras [Link]
  • Dr. Aaron Eberle 
  • Dr. Armin Opitz 
  • Dr. Manish Kelkar 
  • Dr. Florian Nettesheim 
  • Dr. Caroline Nam Laufer 
  • Dr. Matthew Liberatore 
  • Dr. Emily Pollauf 
  • Dr. Young Sil Lee 
  • Dr. Raphael Pesche 
  • Dr. Stacey Elliot 
  • Dr. Gerhardt Fritz 
  • Dr. Leo Hanus 
  • Dr. Markus Banerjee 
  • Dr. Igor Bodnar

Former Visiting Researchers

  • Dr. Liyan Shan (Harbin Institute of Technology)
  • Caroline Giacomin (ETH Zurich)
  • Dr. Hongsen He (Harbin Institute of Technology)
  • Dr. Jun Dong Park (Seoul National University)
  • Dr. Annekathrin Muetze (ETH-Z)
  • Dr. Ingo Hoffmann (TU Berlin)
  • Dr. Peggy Heunemann (TU Berlin)
  • Dr. Michael Gradzielski (TU Berlin)
  • Dr. Ramón Castañeda-Priego, Universidad de Guanajuato, Mexico
  • Dr. Dimitris Vlassopoulos, FORTH Institute, Crete, Greece
  • Dr. Jan Mewis, K.U. Leuven, Belgium
  • Dr. Bruno D’Aguanno, CRS4, Sardinia
  • Dr. Hans Christian Ottinger, ETH, Zurich, Switzerland
  • Dr. Jan K.G. Dhont, Forschungszentrum Julich
  • Dr. Jan Vermant, K.U. Leuven, Belgium